CN112023342B - Method for adjusting speed and gradient of running machine, exercise training method and running machine - Google Patents
Method for adjusting speed and gradient of running machine, exercise training method and running machine Download PDFInfo
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
- A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
- A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/18—Inclination, slope or curvature
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/30—Speed
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2230/00—Measuring physiological parameters of the user
- A63B2230/04—Measuring physiological parameters of the user heartbeat characteristics, e.g. ECG, blood pressure modulations
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Abstract
The invention relates to the field of intelligent training equipment, and provides a method for adjusting the speed and the gradient of a treadmill in real time according to heart rate change, which comprises the following steps: s201: monitoring and acquiring the current heart rate of the user during movement in real time, and executing S202 to S205 if the current heart rate of the user is not within the range of the target heart rate of the user; s202: calculating the difference between the current heart rate and the mean value of the target heart rate range; s203: establishing a polynomial formula according to the test heart rate, the test intensity, the resting heart rate and the resting intensity of the user; s204: calculating to obtain a difference value between the current strength of the treadmill and the target strength according to the difference between the current heart rate and the mean value of the target heart rate range and a polynomial formula, and obtaining the target strength according to the current strength of the treadmill and the difference value; s205: the target intensity is converted into a target speed and a target gradient by an intensity-speed/gradient conversion formula. The method can dynamically adjust the speed and/or gradient of the treadmill and meet the requirements of individual, fine and quick heart rate adjustment.
Description
Technical Field
The invention relates to the field of intelligent training equipment, in particular to a method for adjusting the speed and the gradient of a treadmill in real time according to heart rate change, a sports training method for controlling the treadmill based on the heart rate of a user and the treadmill for adjusting the speed and the gradient according to the heart rate.
Background
Nowadays, with the continuous development of economic level, people's life becomes more convenient and faster, and physical strength consumption in life also becomes less and less. However, the diseases are accompanied by a series of physical health problems possibly caused by insufficient physical activity, such as 'three highs', diabetes and other typical symptoms, so that the death number is second to the smoking problem, and the diseases become the second cause of abnormal death of the second largest people in the modern society. Therefore, exercise is an indispensable condition for maintaining human health.
Chinese patent publication No. CN110025928A discloses a body heart rate data detection and intelligent exercise treadmill and a control method thereof, in the method, a heart rate interval is obtained by measuring a limit heart rate of a user, an appropriate target heart rate is selected for a heart rate interval of an exercise prescription, a deviation between the target heart rate and a monitored actual heart rate of the user is compared, if a difference between the actual heart rate and the target heart rate is too large, a working mode (speed, frequency, etc.) of a treadmill is adjusted to correct an exercise mode of the user, thereby ensuring that the user correctly completes a training plan of the exercise prescription. However, this method has the following disadvantages:
(1) a strategy for reminding a user of adjustment through the difference condition displayed by a UI (user interface) in the screen of the all-in-one machine is that the user can actually adjust the speed and the frequency manually, and the automatic adjustment function of the treadmill is not formed.
(2) The method does not indicate how to specifically adjust the way the treadmill works to correct the user's exercise behavior.
Therefore, there is a need to develop a treadmill capable of finely and adaptively adjusting the exercise intensity of the human body.
Disclosure of Invention
The technical purpose of the present invention is to solve the above-mentioned defects of the prior art, and provide a method for adjusting the speed and gradient of a treadmill in real time according to the heart rate variation, a method for exercise training for controlling the treadmill based on the heart rate of a user, and a treadmill for adjusting the speed and gradient according to the heart rate, which can finely and adaptively adjust the exercise intensity of a human body.
As one aspect of the present invention, a method for adjusting treadmill speed and grade in real time based on heart rate changes is provided, comprising the steps of:
s201: monitoring and acquiring the current heart rate of the user during exercise in real time, and if the current heart rate of the user is not within the range of the target heart rate of the user, executing the step S202 to the step S205;
s202: calculating the difference between the current heart rate and the mean value of the target heart rate range;
s203: establishing a polynomial formula according to the test heart rate, the test intensity, the resting heart rate and the resting intensity of the user;
s204: calculating to obtain a difference value between the current strength of the treadmill and the target strength according to the difference between the current heart rate and the mean value of the target heart rate range in the step S202 and the polynomial formula in the step S203, and obtaining the target strength according to the current strength of the treadmill and the difference value;
s205: the target intensity is converted to a target speed and a target grade by an intensity-speed/grade conversion formula, and the speed and/or grade of the treadmill is adjusted according to the target speed and the target grade.
When the user uses the treadmill, the exercise intensity of the user can be changed by adjusting the speed and the gradient. Under the appropriate exercise intensity, the heart rate of the user during exercise can be kept within an appropriate range, and the user can exercise efficiently and safely.
According to an example embodiment of the present invention, the current heart rate is an average heart rate of a predetermined time before the current time.
According to an exemplary embodiment of the invention, the target heart rate is an effective and safe range of exercise heart rates for improving the functioning of the cardiovascular system by aerobic exercise.
According to an example embodiment of the present invention, the test intensity is a physical exercise load of the user while performing the test.
According to an example embodiment of the present invention, the test heart rate is an average exercise heart rate at a predetermined exercise intensity, and is detected by a heart rate meter or the like.
The heart rate and the strength are obtained by a cardiopulmonary endurance test, which is an exercise test for monitoring full-lead electrocardiogram and blood pressure change from a resting state to an exercise load and simultaneously monitoring metabolic indexes such as pulmonary ventilation index, oxygen intake amount, carbon dioxide output amount and the like. The cardiopulmonary endurance test is the only clinical detection technology which can comprehensively evaluate the whole multi-system functions of a human body in one test at present, and is an important component in primary or secondary prevention and rehabilitation projects.
The cardiopulmonary endurance test is a three-level incremental cardiopulmonary endurance test, wherein the three levels represent the maximum times of exercise tests, and the increment represents that the exercise intensity of each level of test is gradually increased, namely the first level of test intensity is less than the second level of test intensity is less than the third level of test intensity. When the test is carried out, if only a first-level cardiopulmonary endurance test is carried out, the test result of the user only has a first-level test heart rate and a first-level test intensity; if the second-level cardiopulmonary endurance test is carried out, the test result of the user comprises a first-level test heart rate, a first-level test intensity, a second-level test heart rate and a second-level test intensity; if a third level cardiopulmonary endurance test is performed, then the test results for the user include a first level test heart rate, a first level test intensity, a second level test heart rate, a second level test intensity, a third level test heart rate, and a third level test intensity.
According to an example embodiment of the present invention, the resting heart rate refers to the number of beats per minute in a waking, inactive resting state.
According to an exemplary embodiment of the invention, the resting strength is a physical load at rest. The physical load is generally the same for everyone at rest.
The target heart rate, test intensity, resting heart rate, and resting intensity are acquired prior to user movement. The target intensity of the user during exercise is related to the exercise state of the user and the characteristics of the heart-lung endurance, the target intensity is changed according to the exercise state of the user, and the more targeted target intensity can be obtained only by comprehensively evaluating the current heart rate, the target heart rate, the test intensity, the resting heart rate and the resting intensity of the user, so that the exercise intensity of the user can be accurately adjusted.
According to an example embodiment of the present invention, when the user performs only one level of cardiopulmonary endurance testing, the user's test heart rate comprises a first level of test heart rate, and the user's test intensity comprises a first level of test intensity; when a user performs a second-level cardiopulmonary endurance test, the test heart rate of the user comprises a first-level test heart rate and a second-level test heart rate, and the test intensity of the user comprises a first-level test intensity and a second-level test intensity; when a user performs a three-level cardiopulmonary endurance test, the test heart rate of the user comprises a first-level test heart rate, a second-level test heart rate and a third-level test heart rate, and the test intensity of the user comprises a first-level test intensity, a second-level test intensity and a third-level test intensity; the first-level test heart rate is less than the second-level test heart rate and less than the third-level test heart rate, and the first-level test intensity is less than the second-level test intensity and less than the third-level test intensity;
in the step S204, the process is described,
when the user only performs a first-level cardiopulmonary endurance test, the polynomial formula is
Wherein the content of the first and second substances,
when the user performs a second-level cardiopulmonary endurance test, the polynomial formula is
Wherein the content of the first and second substances,
when the user performs a three-level cardiopulmonary endurance test, the polynomial formula is
When using the formula
When the temperature of the water is higher than the set temperature,
when using the formula
When the temperature of the water is higher than the set temperature,
d is the resting intensity in mL/(kg. min);
d1 is the first order test intensity in mL/(kg. min);
d2 is the secondary test intensity in mL/(kg. min);
d3 is the tertiary test intensity in mL/(kg. min);
e is the resting heart rate in units of times/minute;
e1 is the first order test heart rate in units of beats/minute;
e2 is the secondary test heart rate in units of beats/minute;
e3 is the tertiary test heart rate in units of beats/minute;
c1 and c2 are maximum oxygen uptake correction coefficients with the unit of mL/(kg & min);
y is the difference between the current strength and the target strength of the treadmill, and mL/(kg & min);
x is the difference between the current heart rate and the mean of the target heart rate range in units of times/min.
According to an exemplary embodiment of the invention, the intensity-speed/gradient conversion formula is
Target intensity is a V f + g + V h,
wherein the content of the first and second substances,
f. g and h are both constants,
a is the gradient and the unit is%;
v is the speed, in kilometers per hour,
the target intensity is expressed in mL/(kg. min).
The speed or the gradient can be adjusted only, and the speed and the gradient can be adjusted in a balance mode simultaneously.
According to a second aspect of the present invention, there is provided a method of exercise training for controlling a treadmill based on a user's heart rate, comprising the steps of:
s1: a warm-up period: adjusting the intensity of the treadmill to be a first fixed intensity, so that the user can exercise within a first preset time;
s2: and (3) dynamic adjustment period: adjusting the initial dynamic intensity of the treadmill, and adjusting the speed and/or the gradient of the treadmill in real time according to the method for adjusting the speed and the gradient of the treadmill in real time according to the change of the heart rate;
s3: a recovery period: and adjusting the intensity of the treadmill to be a second fixed intensity, so that the user can exercise within a second preset time.
According to an example embodiment of the present invention, before the step S1, a target heart rate, a test intensity, a resting heart rate and a resting intensity of the user are obtained.
According to an example embodiment of the present invention, before the step S1, the exercise risk of the user is further obtained, where the exercise risk includes a low risk, a medium risk, and a high risk;
if the exercise risk of the user is low, a sprint period is further included between the dynamic adjustment period and the intensity recovery period, and the intensity of the treadmill is adjusted to be a third fixed intensity in the sprint period, so that the user can exercise within a third preset time.
According to an example embodiment of the present invention, the third fixed intensity is 110% -130% of the dynamic intensity of the treadmill at the end of the dynamic adjustment period in step S2.
According to an example embodiment of the present invention, before the step S1, it is further obtained whether the user has exercise habits, the first preset time of the user having exercise habits in the step S1 is longer than the first preset time of the user not having exercise habits, and the second preset time of the user having exercise habits in the step S3 is longer than the second preset time of the user not having exercise habits.
According to an exemplary embodiment of the present invention, in step S1,
when the user only performs a first-level cardiopulmonary endurance test, the first fixed strength is 50% -80% of the first-level test strength;
when the user has performed a second or third level cardiopulmonary endurance test,
when the maximum value of the target heart rate is less than the second-level test heart rate, the first fixed intensity is 50% -80% of the first-level test intensity;
when the maximum value of the target heart rate is larger than or equal to the second-level test heart rate, the first fixed strength is 50% -80% of the second-level test strength.
According to an exemplary embodiment of the present invention, in step S2,
when the user only performs a first-level cardiopulmonary endurance test, the initial dynamic strength is the first-level test strength;
when the user has performed a second or third level cardiopulmonary endurance test,
when the maximum value of the target heart rate is less than the second-level test heart rate, the initial dynamic intensity is the first-level test intensity;
and when the maximum value of the target heart rate is not less than the second-level test heart rate, the initial dynamic intensity is the second-level test intensity.
According to an example embodiment of the present invention, in the step S3, the second fixed intensity is 50-80% of the target intensity at the end of the dynamic adjustment period.
According to a third aspect of the present invention, there is provided a treadmill that adjusts speed and grade according to heart rate, comprising: the device comprises a heart rate monitoring module, a treadmill and a speed and gradient calculation and adjustment module;
the heart rate monitoring module is connected with the speed and gradient calculation and adjustment module and is used for monitoring the current heart rate of the user;
the speed and gradient calculation and adjustment module is connected with the running machine and used for adjusting the speed and gradient of the running machine according to the method for adjusting the speed and gradient of the running machine in real time according to the heart rate change or the exercise training method for controlling the running machine based on the heart rate of the user.
The invention has the beneficial effects that:
before a user uses the treadmill, the corresponding target intensity can be output by establishing the polynomial relationship between the heart rate and the exercise load and inputting the target heart rate into the formula, and then the intensity is converted into the corresponding speed and gradient. The invention can lead the user (cardiovascular disease high risk group and healthy group) to achieve the best training efficiency when the exercise intervention is carried out, and effectively saves the exercise intervention time of the user, namely, the specified exercise amount is completed in the least time.
In addition, the invention depends on the real exercise test condition of the user (including the first-level, second-level and third-level heart rate test and the test intensity), and the method for adjusting the intensity by combining the real heart rate reaction of the user under the exercise condition can more quickly fulfill the aim of controlling the constant heart rate range. According to the invention, when dangerous exercise exists in the user, the intensity is adjusted in time to ensure that the user moves under the safety intensity for a long time, and the safety of exercise intervention is improved.
Drawings
FIG. 1 presents a flow chart of a method of athletic training for controlling a treadmill based on a user's heart rate.
Fig. 2 shows a block diagram of the treadmill setup during the warm-up phase.
Fig. 3 is a flow chart of a dynamic adjustment period phase setting method.
FIG. 4 is a flow chart illustrating the adjustment of treadmill speed and grade.
Fig. 5 presents a flow chart for establishing a polynomial relationship.
FIG. 6 is a block diagram of a treadmill setup for the sprint session phase.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
According to a first embodiment of the present invention, there is provided an exercise training method for controlling a treadmill based on a heart rate of a user, as shown in fig. 1, comprising the steps of:
a: and acquiring user information including exercise target heart rate, test intensity, rest heart rate, rest intensity, exercise risk and exercise habits.
The test intensity is the physical exercise load of the user when the test is performed. The test heart rate is an average exercise heart rate at a predetermined exercise intensity, and is detected by a heart rate meter or the like.
The heart rate and the strength are obtained by a cardiopulmonary endurance test, which is an exercise test for monitoring full-lead electrocardiogram and blood pressure change from a resting state to an exercise load and simultaneously monitoring metabolic indexes such as pulmonary ventilation index, oxygen intake amount, carbon dioxide output amount and the like. The cardiopulmonary endurance test is the only clinical detection technology which can comprehensively evaluate the whole multisystem functions of a human body in one test at present, and is an important component in the primary or secondary prevention and rehabilitation projects.
The method comprises the steps that a user obtains a heart rate test result through a first-stage test, a second-stage test and a third-stage test of the cardiopulmonary endurance, and when the user only performs the first-stage cardiopulmonary endurance test, the heart rate of the user comprises a first-stage test heart rate; when a user performs a second-level cardiopulmonary endurance test, the test heart rate of the user comprises a first-level test heart rate and a second-level test heart rate; when a user performs a three-level cardiopulmonary endurance test, the test heart rate of the user comprises a first-level test heart rate, a second-level test heart rate and a third-level test heart rate; the first-level test heart rate is less than the second-level test heart rate is less than the third-level test heart rate.
The user obtains the result of the test intensity by performing a first-stage test, a second-stage test and a third-stage test on the cardiopulmonary endurance, and when the user only performs the first-stage cardiopulmonary endurance test, the test intensity of the user comprises the first-stage test intensity; when the user performs a second-level cardiopulmonary endurance test, the test intensity of the user comprises a first-level test intensity and a second-level test intensity; when a user performs a three-level cardiopulmonary endurance test, the test intensity of the user comprises a first-level test intensity, a second-level test intensity and a third-level test intensity; the first-level test strength is less than the second-level test strength is less than the third-level test strength.
The resting heart rate is the number of beats per minute in a waking, inactive resting state.
The resting strength is the physical load in the resting situation. The physical load is generally the same for everyone at rest. Exercise risk is judged by diagnosis, symptoms or signs of cardiovascular, pulmonary and metabolic diseases of patients and risk factors of cardiovascular diseases, and sporters are divided into three risk categories: low risk, medium risk, high risk.
Exercise habits were evaluated by physical activity level questionnaires-Short questionnaires (IPAQ-Short), which are internationally recognized questionnaires, with low, medium or high physical activity levels. And when the evaluation result is that the user has the exercise habit, the user is considered to have the exercise habit.
B: a warm-up period: the intensity of the treadmill is adjusted to a first fixed intensity, so that the user can exercise within a first preset time.
As shown in FIG. 2, the warm-up phase includes setting the treadmill in two aspects, namely, the intensity setting of the treadmill and the time setting of the treadmill.
If the user only performs the primary cardiorespiratory endurance test, the intensity of the treadmill, i.e., the first fixed intensity, is set to 60% of the primary test intensity. If the user carries out a second-level cardiopulmonary endurance test or a third-level cardiopulmonary endurance test, when the maximum exercise target heart rate of the user is less than the second-level test heart rate, the strength of the treadmill, namely the first fixed strength, is set to be 60% of the first-level test strength; when the maximum exercise target heart rate of the user is larger than or equal to the second-level test heart rate, the strength of the treadmill, namely the first fixed strength, is set to be 60% of the second-level test strength.
In this embodiment, the target heart rate is selected as the upper limit of the target heart rate range and the lower limit of the target heart rate range, but the present invention is not limited to these values in practical applications, and the user may select any value between the upper limit and the lower limit of the target heart rate range, for example, the user may set the target heart rate as the upper limit of the target heart rate range to reach the highest effective exercise intensity, or set the target heart rate as the lower limit of the target heart rate range to reach the lowest effective exercise intensity.
The intensity of the warm-up period is not limited to 60% of the intensity of the primary test or the intensity of the secondary test, and the user can also select the intensity of the warm-up period according to the self condition, such as 50% of the intensity of the primary test or the intensity of the secondary test, and 70% of the intensity of the primary test or the intensity of the secondary test.
If the user has no exercise habit, the user is considered to belong to the improvement period, and the exercise time at the period, namely the first preset time, is set to be five minutes. If the user has exercise habits, the user is considered to belong to the improvement period, and the exercise time at the period, namely the first preset time, is set to be ten minutes. The user can also select the improvement period and the adaptation period by the display page of the treadmill.
C: and (3) dynamic adjustment period: as shown in FIG. 3, the initial dynamic intensity of the treadmill is adjusted and then the speed and/or grade of the treadmill is adjusted in real time based on heart rate changes.
Adjusting initial dynamic strength of a treadmill: when this user only carries out one-level cardiopulmonary endurance test, there is only one-level test heart rate in user's test heart rate's information, and initial dynamic strength sets up to one-level test intensity. When the user performs a second-level cardiorespiratory endurance test or a third-level cardiorespiratory endurance test, when the maximum value of the target heart rate is less than the second-level test heart rate, the initial dynamic intensity is set as a first-level test intensity; when saidAnd when the maximum value of the target heart rate is larger than or equal to the second-level test heart rate, setting the initial dynamic strength as the second-level test strength.
Real-time treadmill speed and/or grade adjustment based on heart rate changesAs shown in fig. 4:
c1: monitoring and acquiring the current heart rate of the user during exercise in real time, wherein if the current heart rate of the user is within the range of the target heart rate, the speed and/or gradient of the treadmill does not need to be adjusted; if the user's current heart rate is not within the user's range of target heart rates, steps C2 through C5 are performed. Wherein the current heart rate is an average heart rate one minute before the current time.
C2: and calculating the difference between the current heart rate and the mean value of the target heart rate range.
C3: as shown in fig. 5, a polynomial formula is established according to the test heart rate, test intensity, resting heart rate and resting intensity of the user.
When the user only carries out first-level cardiopulmonary endurance test, its test rhythm of the heart only has first-level test rhythm of the heart, and test intensity only has first-level test intensity, then establishes the polynomial relation between resting rhythm of the heart, resting intensity, first-level test rhythm of the heart and the first-level test intensity:
wherein the content of the first and second substances,
d is the resting intensity in mL/(kg. min);
d1 is the first order test intensity in mL/(kg. min);
e is the resting heart rate in units of times/minute;
e1 is the first order test heart rate in units of beats/minute;
c1 and c2 are maximum oxygen uptake correction coefficients with the unit of mL/(kg & min);
y is the difference between the current strength and the target strength of the treadmill, and mL/(kg & min);
x is the difference between the current heart rate and the mean of the target heart rate range in units of times/min.
When the user carries out second grade cardiopulmonary endurance test, its test rhythm of the heart includes first-grade test rhythm of the heart and second grade test rhythm of the heart, and test intensity includes first-grade test intensity and second grade test intensity, then establishes the polynomial relation of first-grade test rhythm of the heart, first-grade test intensity, second grade test rhythm of the heart and second grade test intensity:
wherein the content of the first and second substances,
d1 is the first order test intensity in mL/(kg. min);
d2 is the secondary test intensity in mL/(kg. min);
e1 is the first order test heart rate in units of beats/minute;
e2 is the secondary test heart rate in units of beats/minute;
c1 and c2 are maximum oxygen uptake correction coefficients with the unit of mL/(kg & min);
y is the difference between the current strength and the target strength of the treadmill, and mL/(kg & min);
x is the difference between the current heart rate and the mean of the target heart rate range in units of times/min.
When the user carries out tertiary cardiopulmonary endurance test, its test rhythm of the heart includes one-level test rhythm of the heart, second grade test rhythm of the heart and tertiary test rhythm of the heart, and test intensity includes one-level test intensity, second grade test intensity and tertiary test intensity, then establishes the polynomial relation of one-level test rhythm of the heart, one-level test intensity, second grade test rhythm of the heart, second grade test intensity, tertiary test rhythm of the heart and tertiary test intensity:
wherein the content of the first and second substances,
d1 is the first order test intensity in mL/(kg. min);
d2 is the secondary test intensity in mL/(kg. min);
d3 is the tertiary test intensity in mL/(kg. min);
e1 is the first order test heart rate in units of beats/minute;
e2 is the secondary test heart rate in units of beats/minute;
e3 is the tertiary test heart rate in units of beats/minute;
c1 and c2 are maximum oxygen uptake correction coefficients with the unit of mL/(kg & min);
y is the difference between the current strength and the target strength of the treadmill, and mL/(kg & min);
x is the difference between the current heart rate and the mean of the target heart rate range in units of times/min.
Step C2 and step C3 may be performed simultaneously, or step C2 may be performed first and step C3 may be performed second, or step C3 may be performed first and step C2 may be performed second.
C4: inputting the difference between the current heart rate in the step C2 and the average value of the target heart rate range into the polynomial formula in the step C3, calculating to obtain the difference between the current strength of the treadmill and the target strength, and obtaining the target strength according to the current strength of the treadmill and the difference.
C5: the target intensity is converted to a target speed and a target grade by an intensity-speed/grade conversion formula, and the speed and/or grade of the treadmill is adjusted according to the target speed and the target grade.
The intensity-speed/slope conversion formula is as follows:
when the speed is more than or equal to 6 km/h,
when the speed is less than 6 km/h,
wherein the content of the first and second substances,
a is the gradient and the unit is%;
v is the speed, in kilometers per hour,
the target intensity unit is mL/(kg. min).
The speed of the treadmill alone may be adjusted, the grade of the treadmill alone may be adjusted, or both the speed and the grade of the treadmill may be adjusted.
Under the condition of middle and high intensity exercise, the polynomial relation between the heart rate and the exercise load can output the corresponding target intensity by inputting the target heart rate into a formula through establishing the polynomial relation. The adjustment is carried out based on a formula, is a continuous adjustment method, and can continuously maintain the human body within a certain intensity range during movement. In the polynomial relation, intensity adjustment is carried out depending on the real exercise test conditions (including primary, secondary and tertiary test heart rates and test intensity) of the user, so that the real heart rate of the user under the exercise condition can be reflected; meanwhile, maximum oxygen uptake adjustment coefficients c1 and c2 are introduced, the polynomial formula is corrected based on the real maximum oxygen uptake, and the corrected formula is more accurate and more suitable for the motion of the human body.
D: and (3) a sprint period: and adjusting the intensity of the treadmill to a third fixed intensity, so that the user can exercise within a third preset time.
As shown in FIG. 6, the sprint session includes two settings for the treadmill, one is the intensity setting of the treadmill and the other is the time setting of the treadmill.
If the user's exercise risk is low, the third preset time is three minutes, and the third fixed intensity is 120% of the dynamic intensity of the treadmill at the end of the dynamic adjustment period. The intensity of the sprint session is not limited to 120% of the dynamic intensity of the treadmill at the end of the dynamic adjustment session. The user can also select the intensity of the sprint period according to his or her own situation, for example, 110% of the dynamic intensity of the treadmill at the end of the dynamic adjustment period and 130% of the dynamic intensity of the treadmill at the end of the dynamic adjustment period.
And if the movement risk of the user is in medium danger or high danger, the third preset time is 0 minute.
E: a recovery period: and adjusting the intensity of the treadmill to be a second fixed intensity, so that the user can exercise within a second preset time.
The recovery phase includes setting the treadmill in two aspects, namely, the intensity setting of the treadmill and the time setting of the treadmill.
The intensity of the treadmill, i.e., the second fixed intensity, is set to 60% of the target intensity at the end of the dynamic adjustment period. The intensity of the recovery period is not limited to 60% of the target intensity at the end of the dynamic adjustment period. The user may select the intensity of the recovery period by himself/herself, for example, 70% of the target intensity at the end of the dynamic adjustment period and 65% of the target intensity at the end of the dynamic adjustment period.
If the user has no exercise habit, the user is considered to belong to the improvement period, and the exercise time at the period, namely the second preset time, is set to be five minutes. If the user has exercise habits, the user is considered to belong to the improvement period, and the exercise time at the stage, namely the second preset time, is set to be ten minutes. The user can also select the improvement period and the adaptation period by the display page of the treadmill.
By the method, the movement of the user is divided into four stages, so that the user can adjust the movement intensity according to the movement rule, and the movement effect is improved. In the dynamic adjustment period, the exercise intensity of the user is dynamically and accurately adjusted according to the self condition of the user, and the exercise effectiveness is further improved.
According to a second embodiment of the present invention, there is provided a method for exercise training of a treadmill controlled based on a user's heart rate, the method being substantially the same as the method of the first embodiment except that in the dynamic adjustment period step C3, when the user performs a three-level cardiopulmonary endurance test, the test heart rates thereof include a primary test heart rate, a secondary test heart rate, and a tertiary test heart rate, the test intensities include a primary test intensity, a secondary test intensity, and a tertiary test intensity, and a quadratic function relationship of the primary test heart rate, the primary test intensity, the secondary test heart rate, the secondary test intensity, the tertiary test heart rate, and the tertiary test intensity may be established:
wherein the content of the first and second substances,
d1 is the first order test intensity in mL/(kg. min);
d2 is the secondary test intensity in mL/(kg. min);
d3 is the tertiary test intensity in mL/(kg. min);
e1 is the first order test heart rate in units of beats/minute;
e2 is the secondary test heart rate in units of beats/minute;
e3 is the tertiary test heart rate in units of beats/minute;
c1 and c2 are maximum oxygen uptake correction coefficients with the unit of mL/(kg & min);
y is the difference between the current strength and the target strength of the treadmill, and mL/(kg & min);
x is the difference between the current heart rate and the mean of the target heart rate range in units of times/min.
According to a third embodiment of the present invention, there is provided a treadmill that adjusts speed and grade based on heart rate, comprising: the device comprises a heart rate monitoring module, a treadmill and a speed and gradient calculation and adjustment module;
the heart rate monitoring module is connected with the speed and gradient calculation and adjustment module and is used for monitoring the current heart rate of the user;
the speed and grade calculation adjustment module is coupled to the treadmill for adjusting the speed and grade of the treadmill according to the method of the first or second embodiments.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A method for adjusting treadmill speed and grade in real time based on heart rate changes, comprising the steps of:
s201: monitoring and acquiring the current heart rate of the user during exercise in real time, and if the current heart rate of the user is not within the range of the target heart rate of the user, executing the step S202 to the step S205;
s202: calculating the difference between the current heart rate and the mean value of the target heart rate range;
s203: establishing a polynomial formula according to the test heart rate, the test intensity, the resting heart rate and the resting intensity of the user; the test heart rate is an average exercise heart rate at a predetermined exercise intensity; the test intensity is the physical exercise load of a user during testing; when the user only performs a first level of cardiopulmonary endurance testing, the user's test heart rate comprises a first level of test heart rate, and the user's test intensity comprises a first level of test intensity; when a user performs a second-level cardiopulmonary endurance test, the test heart rate of the user comprises a first-level test heart rate and a second-level test heart rate, and the test intensity of the user comprises a first-level test intensity and a second-level test intensity; when a user performs a three-level cardiopulmonary endurance test, the test heart rate of the user comprises a first-level test heart rate, a second-level test heart rate and a third-level test heart rate, and the test intensity of the user comprises a first-level test intensity, a second-level test intensity and a third-level test intensity; the first-level test heart rate is less than the second-level test heart rate and less than the third-level test heart rate, and the first-level test intensity is less than the second-level test intensity and less than the third-level test intensity; resting heart rate is the number of beats per minute in a waking, inactive resting state; the resting strength is the physical load under resting conditions;
s204: according to the difference between the current heart rate and the mean value of the target heart rate range in the step S202 and the step
Calculating to obtain a difference value between the current strength and the target strength of the treadmill by using a polynomial formula in the S203, and obtaining the target strength according to the current strength and the difference value of the treadmill;
when the user only performs a first-level cardiopulmonary endurance test, the polynomial formula is as follows:
wherein the content of the first and second substances,
when the user performs a second-level cardiopulmonary endurance test, the polynomial equation is:
wherein the content of the first and second substances,
when the user performs a three-level cardiopulmonary endurance test, the polynomial equation is:
When using the formula
When the temperature of the water is higher than the set temperature,
when using the formula
When the temperature of the water is higher than the set temperature,
d is the resting intensity in mL/(kg. min);
d1 is the first order test intensity in mL/(kg. min);
d2 is the secondary test intensity in mL/(kg. min);
d3 is the tertiary test intensity in mL/(kg. min);
e is the resting heart rate in units of times/minute;
e1 is the first order test heart rate in units of beats/minute;
e2 is the secondary test heart rate in units of beats/minute;
e3 is the tertiary test heart rate in units of beats/minute;
c1 and c2 are maximum oxygen uptake correction coefficients with the unit of mL/(kg & min);
y is the difference between the current strength and the target strength of the treadmill, and mL/(kg & min);
x is the difference between the current heart rate and the mean value of the target heart rate range, and the unit is times/minute;
s205: the target intensity is converted to a target speed and a target grade by an intensity-speed/grade conversion formula, and the speed and/or grade of the treadmill is adjusted according to the target speed and the target grade.
2. The method of claim 1, wherein the current heart rate is an average heart rate a predetermined time prior to a current time; the target heart rate is an effective and safe exercise heart rate range for improving the function of the cardiovascular circulatory system through aerobic exercise.
3. The method of claim 1, wherein the intensity-speed/slope conversion formula is:
target intensity is a V f + g + V h,
wherein the content of the first and second substances,
f. g and h are both constants,
a is the gradient and the unit is%;
v is the speed in kilometers per hour.
4. An exercise training method for controlling a treadmill based on a user's heart rate, comprising the steps of:
s1: a warm-up period: adjusting the intensity of the treadmill to be a first fixed intensity, so that the user can exercise within a first preset time;
s2: and (3) dynamic adjustment period: adjusting an initial dynamic intensity of the treadmill, adjusting a speed and/or a grade of the treadmill in real time according to the method of adjusting a speed and a grade of the treadmill in real time according to a heart rate variation according to any one of claims 1-3;
s3: a recovery period: and adjusting the intensity of the treadmill to be a second fixed intensity, so that the user can exercise within a second preset time.
5. The method for exercise training of a treadmill based on user heart rate control of claim 4, wherein prior to step S1, the user' S target heart rate, test intensity, resting heart rate and resting intensity are obtained.
6. The exercise training method for controlling a treadmill based on user heart rate as recited in claim 5, further comprising, before said step S1, obtaining exercise risks of the user, wherein the exercise risks comprise low risk, medium risk and high risk;
and if the exercise risk of the user is low, a sprint period is also included between the dynamic adjustment period and the recovery period, and the intensity of the treadmill is adjusted to be a third fixed intensity in the sprint period, so that the user can exercise within a third preset time.
7. The method of claim 5, wherein the user's test heart rate comprises a primary test heart rate and the user's test intensity comprises a primary test intensity when the user only performs a primary cardiorespiratory endurance test; when a user performs a second-level cardiopulmonary endurance test, the test heart rate of the user comprises a first-level test heart rate and a second-level test heart rate, and the test intensity of the user comprises a first-level test intensity and a second-level test intensity; when a user performs a three-level cardiopulmonary endurance test, the test heart rate of the user comprises a first-level test heart rate, a second-level test heart rate and a third-level test heart rate, and the test intensity of the user comprises a first-level test intensity, a second-level test intensity and a third-level test intensity; the first-level test heart rate is less than the second-level test heart rate and less than the third-level test heart rate, and the first-level test intensity is less than the second-level test intensity and less than the third-level test intensity;
in the step S1, in the above step,
when the user only performs a first-level cardiopulmonary endurance test, the first fixed strength is 50% -80% of the first-level test strength;
when the user has performed a second or third level cardiopulmonary endurance test,
when the maximum value of the target heart rate is less than the second-level test heart rate, the first fixed intensity is 50% -80% of the first-level test intensity;
when the maximum value of the target heart rate is larger than or equal to the second-level test heart rate, the first fixed strength is 50% -80% of the second-level test strength.
8. The exercise training method for controlling a treadmill based on a heart rate of a user as recited in claim 5, wherein in said step S2,
when the user only performs a first-level cardiopulmonary endurance test, the initial dynamic strength is the first-level test strength;
when the user has performed a second or third level cardiopulmonary endurance test,
when the maximum value of the target heart rate is less than the second-level test heart rate, the initial dynamic intensity is the first-level test intensity;
and when the maximum value of the target heart rate is not less than the second-level test heart rate, the initial dynamic intensity is the second-level test intensity.
9. A treadmill that adjusts speed and grade based on heart rate, comprising: the device comprises a heart rate monitoring module, a treadmill and a speed and gradient calculation and adjustment module;
the heart rate monitoring module is connected with the speed and gradient calculation and adjustment module and is used for monitoring the current heart rate of the user;
the speed and grade calculation adjustment module is coupled to the treadmill for adjusting the speed and/or grade of the treadmill according to any of claims 1-3 or any of claims 4-8.
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