CN116808553B - System for quantitatively researching specific technical level of athletic swimmers - Google Patents
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Abstract
The invention discloses a system for quantitatively researching specific technical level of athletic swimmers, which comprises: acceleration measuring device, communication device and intelligent device; the acceleration measuring device is used for measuring the acceleration of the body advancing when the athlete moves with a specific technology and recording the measured data time stamp t at the beginning and the end of the specific technology action s And t e The method comprises the steps of carrying out a first treatment on the surface of the The communication device is used for measuring the acceleration value and recording the time stamp t s And t e Transmitting to the intelligent device; the intelligent device is used for calculating the time t=t of a specific technical action e ‑t s And calculating player level evaluation parameters according to the acceleration values, and quantitatively researching the level of the competitive swimmer. By adopting the invention, the achievement of excellent swimming athletes in the world can be taken as a model, and the quantitative research on the multiple types of technical levels of competitive swimming athletes can be carried out.
Description
Technical Field
The invention relates to the technical field of sports equipment, in particular to a system for quantitatively researching the specific technical level of athletic swimmers.
Background
For athletic swimmers, more and more fine data are needed as a basis, quantization studies are conducted on training and competition levels of the athletic swimmers, and training monitoring and adjustment are conducted in a targeted manner, but how to effectively conduct quantization studies is always a difficult problem.
Disclosure of Invention
The invention provides a system for quantitatively researching specific technical level of athletic swimmers, which comprises: acceleration measuring device, communication device and intelligent device;
the acceleration measuring device is used for measuring the acceleration of the body advancing when the athlete moves with a specific technology and recording the measured data time stamp t at the beginning and the end of the specific technology action s And t e ；
The communication device is used for measuring the acceleration value and recording the time stamp t s And t e Transmitting to the intelligent device;
the intelligent device is used for calculating the time t=t of a specific technical action e -t s And calculating player level evaluation parameters according to the acceleration values, and quantitatively researching the level of the competitive swimmer.
Optionally, the acceleration measuring device is fixed on a specific part of the body of the athlete, and specifically comprises an acceleration sensor with three axial components.
Optionally, the acceleration measuring device measures the acceleration value component a of the horizontal forward walk direction of a specific technical action at a specific time stamp x Acceleration component value a in vertical up-down direction y And an acceleration component value a in the horizontal left-right direction z ；
The intelligent device is specifically used for:
respectively calculating the component values of the horizontal, vertical, left and right directions relative to the total acceleration value a t Ratio τ of (2) x ＝a x /a t 、τ y ＝a y /a t And τ z ＝a z /z t ；
Based on the ratio, the effective distribution of force during the play of the athlete is evaluated, and the acceleration value a in the horizontal forward direction is obtained x Is recorded as a positive value, and the acceleration value a in the horizontal backward direction x Marked as negative, τ x In [ ] a [ - ]1,1]The closer to 1, the better the force distribution forward in the horizontal direction is, which is beneficial to acceleration during swimming;
acceleration value a in the vertical upward direction y Is marked as positive value and is downward negative, τ y At [ -1,1]The closer to 0, the smaller the force distribution in the up-down direction;
acceleration value a to the right of horizontal z Is marked as positive and negative to the left, τ z At [ -1,1]The closer to 0, the smaller the force distribution in the horizontal left-right direction.
Optionally, the acceleration measuring device is fixed at a specific part of the athlete's body, the specific part including the waist or knee joint, and the acceleration value component of the specific technical action in the horizontal forward swimming direction of the specific part is measured for a specific period of time and recorded as a time series value a xi I is the number of values; measuring the acceleration component value in the vertical up-down direction, and recording as a time series value a yi I is the number of values; measuring acceleration component values in the horizontal left-right direction, and recording as time series values a zi I is the number of values;
when the acceleration measuring device is fixed at the waist, the acceleration time series value a of the horizontal forward direction is measured xi Calculating and comparing a with specific acceleration value as base line xi Evaluating the total power distribution of forward play in a specific period by integrating the area of the curve formed by the values above the baseline level in the specific period, and if the area is larger, the total power is larger; if the area is smaller, the overall force is smaller; the time series values of the horizontal right are respectively recorded as the value +a zi The time series value of the horizontal left is recorded as a value-a z Calculated value +a zi Sum value-a zi Cosine similarity of (2)T(+a zi ，-a zi )
Between [ -1,1], the smaller the value, the similar the swing force distribution of the horizontal left and right deflection of the whole body during swimming, the better balance of the forces of the two limbs; the larger the value is, the larger the swing force distribution difference of the body deviation to the left and right directions is, and the worse balance of the bilateral limb force is;
when the acceleration measuring device is fixed at the knee joint, the acceleration value in the vertical upward direction is respectively recorded as a value +a yi Vertically downward is the value-a yi Calculated value +a yi Sum value-a yi Cosine similarity of (2)T(+a yi ，-a yi ) At [ -1,1]The smaller the value, the similar upward and downward swinging force conditions are shown when the leg swings around the hip joint as the axis; the larger the value, the larger the difference between upward and downward swing forces when the leg swings around the hip joint.
Optionally, the intelligent device is specifically configured to:
obtaining the optimal score of excellent world swimming athletes, and establishing an optimal score model by utilizing the optimal score and adopting a binary once equation system solving mode:
average best performance R of world excellent swimmers m Establishing score and achievement equation 60=kr 2 m -C; best performance R of world excellent swimmers b Establishing score and achievement equation 100=kr 2 b -C; the above two equations 60=kr 2 m -C and 100=kr 2 b -C simultaneous equations, solving coefficients K and C, obtaining the world excellent swimmer performance model formula y=kr 2 -C；
And (3) scoring and evaluating the speed level of the tested athlete by adopting the optimal performance model, wherein the scoring method comprises the following steps of:
measuring several sub-optimal achievements T of a specific technical action to be evaluated i Respectively marked as T 1 、T 2 、T 3 、......、T n And i is the number of measurements,n is the total number of measurements; calculating the average best performance of several durations of the measured specific technical action, recorded asCalculate T i And->Is marked as +.>
Then, the best result of the specific technical action to be evaluated is measured and recorded as T, and calculatedIf R is positive, then substituting the formula y=kr 2 -C, calculating y as a scoring value; if R is negative, then substituting the modified formula y= -KR 2 And C, calculating y as the score value of the current achievement.
Optionally, the method for establishing the optimal performance model establishes the optimal performance model of the male and female free swimming exercises, and comprises the following steps:
the optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of free swimming for men and 5 meters on the edge of the middle-way swimming, are respectively: y=1.537R 2 +21.569、y＝2.108R 2 +7.307、y＝1.667R 2 +18.333；
Four world excellent swimming athlete optimal performance model formulas of a male 100 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=1.49R 2 +22.74、y＝3.306R 2 -22.65、y＝3.306R 2 -22.65、y＝2.225R 2 +4.368；
Four world excellent swimming athlete optimal performance model formulas of a male 200 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y= 2.028R 2 +9.297、y＝1.791R 2 +15.226、y＝1.655R 2 +18.621、y＝1.237R 2 +29.066；
Four world excellent swimming athlete optimal performance model formulas of a male 400 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=2.101R 2 +7.483、y＝2.784R 2 -9.611、y＝1.623R 2 +19.425、y＝3.276R 2 -21.900；
Four world excellent swimming athlete optimal performance model formulas of a male 800 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows:
y＝4.298R 2 -47.456、y＝3.370R 2 -24.259、y＝3.901R 2 -37.524、y＝2.788R 2 -9.700；
four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of a man 1500 meter free swimming are established, and the model formulas are respectively as follows: y= 2.081R 2 +7.978、y＝3.511R 2 -27.778、y＝4.990R 2 -64.748、y＝5.082R 2 -67.047；
The optimal performance model formulas of three excellent swimming athletes in the world, namely 15 meters for 50 meters of freeswimming sports of women and 5 meters for the middle-way swimming and the sprinting are established, and are respectively: y= 1.883R 2 +12.919、y＝2.274R 2 +3.159、y＝2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of sprinting to the side of the free swimming sport of 100 meters of women are established, and the model formulas are respectively as follows:
y＝1.608R 2 +19.805、y＝2.473R 2 -1.829、y＝2.797R 2 -9.914、y＝0.714R 2 +42.143；
four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 200 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y= 2.214R 2 +4.649、y＝2.595R 2 -4.879、y＝3.573R 2 -29.335、y＝1.862R 2 +13.462；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 400 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of sprinting to the side are established, and the model formulas are respectively as follows:
y＝1.769R 2 +15.772、y＝1.667R 2 +18.333、y＝1.859R 2 +13.527、y＝2.319R 2 +2.029；
four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 800 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows:
y＝0.766R 2 +40.788、y＝2.211R 2 +4.737、y＝5.064R 2 -66.608、y＝4.298R 2 -47.456；
four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 1500 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y=2.458R 2 -1.459、y＝2.428R 2 -0.703、y＝3.051R 2 -16.285、y＝1.451R 2 +23.719。
Optionally, the method for establishing the optimal performance model establishes the optimal performance model of the backstroke of the man and the woman, and comprises the following steps:
the optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of a male backstroke, 15 meters from middle-way trip and 5 meters from thorn to side, are established, and are respectively: y=2.882R 2 -12.052、y＝1.796R 2 +15.088、y＝2.647R 2 -6.176；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of 100 meters of backstroke for men are established, and the model formulas are respectively as follows: y= 1.927R 2 +11.833、y＝1.667R 2 +18.333、y＝1.702R 2 +17.450、y＝2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of 200 m backstroke for men, 15 m departure, turning, mid-way swimming and 5 m sprint to side are establishedThe method comprises the following steps of: y=1.921R 2 +11.975、y＝2.647R 2 -6.176、y＝3.227R 2 -20.659、y＝1.781R 2 +15.47；
The optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of female backstroke, 15 meters from middle-way trip and 5 meters from thorn to side, are respectively established: y= 2.473R 2 -1.829、y＝0.942R 2 +36.457、y＝2.647R 2 -6.176；
Four world excellent swimmer optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of 100 meters backstroke of women are established, and the model formulas are respectively as follows: y=2.757r 2 -8.917、y＝1.945R 2 +11.368、y＝2.516R 2 -2.891、y＝2.011R 2 +9.723；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 200 meter backstroke, turning, mid-way swimming and 5 meters of a sprint to the side are established, and the model formulas are respectively as follows: y= 2.057R 2 +8.571、y＝3.036R 2 -15.903、y＝2.319R 2 +2.029、y＝1.537R 2 +21.569。
Optionally, with the method for establishing the optimal performance model, an optimal performance model of the breaststroke of the male and female is established, including:
four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of sprint to the side of the male 100 meters breaststroke are established, and the model formulas are respectively as follows: y=1.600r 2 +20.008、y＝2.948R 2 -13.689、y＝1.470R 2 +23.243、y＝2.557R 2 -3.936；
Four world excellent swimming athlete optimal performance model formulas of 200 m breaststroke of men, namely 15 m departure, turning, mid-way swimming and 5 m sprint to the side are established, and the model formulas are respectively as follows: y=2.169R 2 +5.770、y＝1.910R 2 +12.2406、y＝1.949R 2 +11.267、y＝1.974R 2 +10.632；
Establishes the best three world excellent swimmers with 50 meters of breaststroke sports of women, 15 meters of departure, middle-way tour and 5 meters of sprint to the sideThe score model formula is as follows: y=2.757r 2 -8.917、y＝1.903R 2 +12.426、y＝1.517R 2 +22.065；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of 100 meters breaststroke of women, turning over, mid-way swimming and punching to 5 meters are established, and the model formulas are respectively as follows: y= 2.907R 2 -12.671、y＝3.24R 2 -21、y＝2.230R 2 +4.262、y＝2.844R 2 -11.111；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of 200 meters breaststroke sports of women, turning over, mid-way swimming and punching to 5 meters are established, and the model formulas are respectively as follows: y=1.791R 2 +15.226、y＝2.040R 2 +9.012、y＝1.873R 2 +13.174、y＝1.769R 2 +15.772。
Optionally, the method for establishing the optimal performance model establishes the optimal performance model of the butterfly stroke of the man and the woman, and comprises the following steps:
the optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from a 50-meter butterfly stroke for men, and 5 meters from middle to middle and from sprint to side, are respectively established: y= 1.816R 2 +14.588、y＝2.2780R 2 +3.053、y＝2.155R 2 +6.121；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of a male 100 meter butterfly swimming sport, turning, mid-way swimming and 5 meters of a sprint are established, wherein the model formulas are respectively as follows: y= 1.883R 2 +12.919、y＝2.225R 2 +4.368、y＝2.232R 2 +4.212、y＝1.745R 2 +16.387；
Four world excellent swimmer optimal performance model formulas of 15 meters of a male 200 meter butterfly stroke, turning, mid-way swimming and 5 meters of a sprint to the side are established, and the model formulas are respectively as follows: y=1.901R 2 +12.485、y＝2.535R 2 -3.369、y＝1.574R 2 +20.645、y＝2.757R 2 -8.917；
Building three kinds of world excellent swimming athlete optimal performance model models of 15 m for 50 m butterfly swimming sports, 5 m for middle and middle reaches and sprinting to the sideThe formula is as follows: y=2.875R 2 -11.871、y＝0.869R 2 +38.280、y＝3.276R 2 -21.900；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 100 meter butterfly stroke, turning, mid-way swimming and 5 meters of a sprint are established, wherein the model formulas are respectively as follows: y=2.234R 2 +4.142、y＝2.057R 2 +8.571、y＝0.604R 2 +44.902、y＝7.049R 2 -116.225；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 200 meter butterfly stroke, turning, mid-way swimming and 5 meters of a sprint to the side are established, and the model formulas are respectively as follows: y= 3.372R 2 -24.301、y＝2.948R 2 -13.689、y＝0.911R 2 +37.216、y＝0.600R 2 +44.988。
Optionally, by using the method for establishing the optimal performance model, an optimal performance model of the mixed swimming sport for men and women is established, which comprises the following steps:
four world excellent swimming athlete optimal performance model formulas of a male 200 m mixed swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=1.074r 2 +33.143、y＝4.024R 2 -40.591、y＝1.989R 2 +10.274、y＝2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of a male 400 m mixed swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=0.791R 2 +40.22、y＝2.105R 2 +7.372、y＝2.232R 2 +4.205、y＝3.196R 2 -19.900；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 400-meter mixed swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y=0.634R 2 +44.145、y＝2.034R 2 +9.153、y＝2.355R 2 +1.115、y＝1.026R 2 +34.359。
The technical scheme provided by the invention has the beneficial effects that at least:
by adopting the invention, the achievement of excellent swimming athletes in the world can be taken as a model, the technical levels of various swimming athletes can be quantitatively researched, and corresponding evaluation can be given.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a system for quantitatively researching a particular skill level of an athletic swimmer in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of an acceleration measurement device for lumbar fixation according to an embodiment of the present invention;
FIG. 3 is a schematic view of the overall forward play force distribution of an athlete in accordance with an embodiment of the present invention;
fig. 4 is a schematic view of a device for measuring the fixed acceleration at knee joint according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a system for quantitatively researching a specific skill level of an athletic swimmer, comprising: acceleration measuring device, communication device and intelligent device;
the acceleration measuring device is used for measuring the acceleration of the body advancing when the athlete moves with a specific technology and recording the measured data time stamp t at the beginning and the end of the specific technology action s And t e ；
The communication device is used for measuring the acceleration value and recording the time stamp t s And t e Transmitting to the intelligent device;
the intelligent device is used for calculatingDuration t=t of a particular technical action e -t s And calculating player level evaluation parameters according to the acceleration values, and quantitatively researching the level of the competitive swimmer.
Alternatively, as shown in fig. 2, the acceleration measuring device is fixed at a specific part of the athlete's body, such as the waist or knee joint, and specifically includes an acceleration sensor having three axial components.
Optionally, the acceleration measuring device measures the acceleration value component a of the horizontal forward walk direction of a specific technical action at a specific time stamp x Acceleration component value a in vertical up-down direction y And an acceleration component value a in the horizontal left-right direction z ；
The intelligent device is specifically used for:
respectively calculating the component values of the horizontal, vertical, left and right directions relative to the total acceleration value a t Ratio τ of (2) x ＝a x /a t 、τ y ＝a y /a t And τ z ＝a z /a t ；
Based on the ratio, the effective distribution of force during the play of the athlete is evaluated, and the acceleration value a in the horizontal forward direction is obtained x Is recorded as a positive value, and the acceleration value a in the horizontal backward direction x Marked as negative, τ x At [ -1,1]The closer to 1, the better the force distribution forward in the horizontal direction is, which is beneficial to acceleration during swimming;
acceleration value a in the vertical upward direction y Is marked as positive value and is downward negative, τ y At [ -1,1]The closer to 0, the smaller the force distribution in the up-down direction;
acceleration value a to the right of horizontal z Is marked as positive and negative to the left, τ z At [ -1,1]The closer to 0, the smaller the force distribution in the horizontal left-right direction.
Optionally, the acceleration measuring device is fixed at a specific part of the athlete's body, the specific part including the waist or knee joint, measuring the position,Acceleration value components of a specific technical action in a horizontal forward swimming direction within a specific time period are recorded as time sequence values a xi I is the number of values; measuring the acceleration component value in the vertical up-down direction, and recording as a time series value a yi I is the number of values; measuring acceleration component values in the horizontal left-right direction, and recording as time series values a zi I is the number of values;
as shown in FIG. 2, when the acceleration measuring device is fixed at the waist, the acceleration time series value a in the horizontal forward direction is measured xi Calculating and comparing a with a specific acceleration value (for example, the forward running acceleration value generated after the first leg swing after the athlete enters water, or the average acceleration value in a specific time period of the world excellent athlete) as a base line xi Evaluating the total power distribution of forward play in a specific period by integrating the area of the curve formed by the values above the baseline level in the specific period, and if the area is larger, the total power is larger; if the area is smaller, the overall force is smaller, as shown in FIG. 3;
the time series values of the horizontal right are respectively recorded as the value +a zi The time series value of the horizontal left is recorded as a value-a z Calculated value +a zi Sum value-a zi Cosine similarity of (2)T(+a zi ,-a zi )
Between [ -1,1], the smaller the value, the similar the swing force distribution of the horizontal left and right deflection of the whole body during swimming, the better balance of the forces of the two limbs; the larger the value is, the larger the swing force distribution difference of the body deviation to the left and right directions is, and the worse balance of the bilateral limb force is;
as shown in fig. 4, when the acceleration measuring device is fixed at the knee joint, the acceleration values in the vertical upward direction are respectively noted as the value +a yi Vertically downward is the value-a yi Calculated value +a yi Sum value-a yi Is the remainder of (2)String similarityT(+a yi ，-a yi ) At [ -1,1]The smaller the value, the similar upward and downward swinging force conditions are shown when the leg swings around the hip joint as the axis; the larger the value, the larger the difference between upward and downward swing forces when the leg swings around the hip joint.
Optionally, the intelligent device is specifically configured to:
obtaining the optimal score of excellent world swimming athletes, and establishing an optimal score model by utilizing the optimal score and adopting a binary once equation system solving mode:
average best performance R of world excellent swimmers m Establishing score and achievement equation 60=kr 2 m -C; best performance R of world excellent swimmers b Establishing score and achievement equation 100=kr 2 b -C; the above two equations 60=kr 2 m -C and 100=kr 2 b -C simultaneous equations, solving coefficients K and C, obtaining the world excellent swimmer performance model formula y=kr 2 -C；
And (3) scoring and evaluating the speed level of the tested athlete by adopting the optimal performance model, wherein the scoring method comprises the following steps of:
measuring several sub-optimal achievements T of a specific technical action to be evaluated i Respectively marked as T 1 、T 2 、T 3 、......、T n I is the number of measurements, n is the total number of measurements; calculating the average best performance of several durations of the measured specific technical action, recorded asCalculate T i And->Is marked as +.>
Then, the best result of the specific technical action to be evaluated is measured and recorded as T, and calculatedIf R is positive, then substituting the formula y=kr 2 -C, calculating y as a scoring value; if R is negative, then substituting the modified formula y= -KR 2 And C, calculating y as the score value of the current achievement.
Optionally, the method for establishing the optimal performance model establishes the optimal performance model of the male and female free swimming exercises, and comprises the following steps:
the optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of free swimming for men and 5 meters on the edge of the middle-way swimming, are respectively: y=1.537R 2 +21.569、y＝2.108R 2 +7.307、y＝1.667R 2 +18.333；
Four world excellent swimming athlete optimal performance model formulas of a male 100 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=1.49R 2 +22.74、y＝3.306R 2 -22.65、y＝3.306R 2 -22.65、y＝2.225R 2 +4.368；
Four world excellent swimming athlete optimal performance model formulas of a male 200 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y= 2.028R 2 +9.297、y＝1.791R 2 +15.226、y＝1.655R 2 +18.621、y＝1.237R 2 +29.066；
Four world excellent swimming athlete optimal performance model formulas of a male 400 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=2.101R 2 +7.483、y＝2.784R 2 -9.611、y＝1.623R 2 +19.425、y＝3.276R 2 -21.900；
Four world excellent swimming athlete optimal performance model formulas of a male 800 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows:
y＝4.298R 2 -47.456、y＝3.370R 2 -24.259、y＝3.901R 2 -37.524、y＝2.788R 2 -9.700；
four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of a man 1500 meter free swimming are established, and the model formulas are respectively as follows: y= 2.081R 2 +7.978、y＝3.511R 2 -27.778、y＝4.990R 2 -64.748、y＝5.082R 2 -67.047；
The optimal performance model formulas of three excellent swimming athletes in the world, namely 15 meters for 50 meters of freeswimming sports of women and 5 meters for the middle-way swimming and the sprinting are established, and are respectively: y= 1.883R 2 +12.919、y＝2.274R 2 +3.159、y＝2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of sprinting to the side of the free swimming sport of 100 meters of women are established, and the model formulas are respectively as follows:
y＝1.608R 2 +19.805、y＝2.473R 2 -1.829、y＝2.797R 2 -9.914、y＝0.714R 2 +42.143；
four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 200 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y= 2.214R 2 +4.649、y＝2.595R 2 -4.879、y＝3.573R 2 -29.335、y＝1.862R 2 +13.462；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 400 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of sprinting to the side are established, and the model formulas are respectively as follows:
y＝1.769R 2 +15.772、y＝1.667R 2 +18.333、y＝1.859R 2 +13.527、y＝2.319R 2 +2.029；
four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 800 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows:
y＝0.766R 2 +40.788、y＝2.211R 2 +4.737、y＝5.064R 2 -66.608、y＝4.298R 2 -47.456；
four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 1500 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y=2.458R 2 -1.459、y＝2.428R 2 -0.703、y＝3.051R 2 -16.285、y＝1.451R 2 +23.719。
Optionally, the method for establishing the optimal performance model establishes the optimal performance model of the backstroke of the man and the woman, and comprises the following steps:
the optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of a male backstroke, 15 meters from middle-way trip and 5 meters from thorn to side, are established, and are respectively: y=2.882R 2 -12.052、y＝1.796R 2 +15.088、y＝2.647R 2 -6.176；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of 100 meters of backstroke for men are established, and the model formulas are respectively as follows: y= 1.927R 2 +11.833、y＝1.667R 2 +18.333、y＝1.702R 2 +17.450、y＝2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of 200 meters of backstroke for men are established, and the model formulas are respectively as follows: y=1.921R 2 +11.975、y＝2.647R 2 -6.176、y＝3.227R 2 -20.659、y＝1.781R 2 +15.47；
The optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of female backstroke, 15 meters from middle-way trip and 5 meters from thorn to side, are respectively established: y= 2.473R 2 -1.829、y＝0.942R 2 +36.457、y＝2.647R 2 -6.176；
Establishes a womanFour world excellent swimmer optimal performance model formulas of 15 meters of departure, turning, mid-way trip and 5 meters of thorn to side of 100 meters of backstroke are respectively as follows: y=2.757r 2 -8.917、y＝1.945R 2 +11.368、y＝2.516R 2 -2.891、y＝2.011R 2 +9.723；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 200 meter backstroke, turning, mid-way swimming and 5 meters of a sprint to the side are established, and the model formulas are respectively as follows: y= 2.057R 2 +8.571、y＝3.036R 2 -15.903、y＝2.319R 2 +2.029、y＝1.537R 2 +21.569。
Optionally, with the method for establishing the optimal performance model, an optimal performance model of the breaststroke of the male and female is established, including:
four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of sprint to the side of the male 100 meters breaststroke are established, and the model formulas are respectively as follows: y=1.600r 2 +20.008、y＝2.948R 2 -13.689、y＝1.470R 2 +23.243、y＝2.557R 2 -3.936；
Four world excellent swimming athlete optimal performance model formulas of 200 m breaststroke of men, namely 15 m departure, turning, mid-way swimming and 5 m sprint to the side are established, and the model formulas are respectively as follows: y=2.169R 2 +5.770、y＝1.910R 2 +12.2406、y＝1.949R 2 +11.267、y＝1.974R 2 +10.632；
The optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of breaststroke of women, 15 meters from middle to middle and 5 meters from sprint to side, are respectively established: y=2.757r 2 -8.917、y＝1.903R 2 +12.426、y＝1.517R 2 +22.065；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of 100 meters breaststroke of women, turning over, mid-way swimming and punching to 5 meters are established, and the model formulas are respectively as follows: y= 2.907R 2 -12.671、y＝3.24R 2 -21、y＝2.230R 2 +4.262、y＝2.844R 2 -11.111；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of 200 meters breaststroke sports of women, turning over, mid-way swimming and punching to 5 meters are established, and the model formulas are respectively as follows: y=1.791R 2 +15.226、y＝2.040R 2 +9.012、y＝1.873R 2 +13.174、y＝1.769R 2 +15.772。
Optionally, the method for establishing the optimal performance model establishes the optimal performance model of the butterfly stroke of the man and the woman, and comprises the following steps:
the optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from a 50-meter butterfly stroke for men, and 5 meters from middle to middle and from sprint to side, are respectively established: y= 1.816R 2 +14.588、y＝2.2780R 2 +3.053、y＝2.155R 2 +6.121；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of a male 100 meter butterfly swimming sport, turning, mid-way swimming and 5 meters of a sprint are established, wherein the model formulas are respectively as follows: y= 1.883R 2 +12.919、y＝2.225R 2 +4.368、y＝2.232R 2 +4.212、y＝1.745R 2 +16.387；
Four world excellent swimmer optimal performance model formulas of 15 meters of a male 200 meter butterfly stroke, turning, mid-way swimming and 5 meters of a sprint to the side are established, and the model formulas are respectively as follows: y=1.901R 2 +12.485、y＝2.535R 2 -3.369、y＝1.574R 2 +20.645、y＝2.757R 2 -8.917；
The optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of butterfly swimming for female, 15 meters from middle to middle and 5 meters from sprint to side, are respectively established: y=2.875R 2 -11.871、y＝0.869R 2 +38.280、y＝3.276R 2 -21.900；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 100 meter butterfly stroke, turning, mid-way swimming and 5 meters of a sprint are established, wherein the model formulas are respectively as follows: y=2.234R 2 +4.142、y＝2.057R 2 +8.571、y＝0.604R 2 +44.902、y＝7.049R 2 -116.225；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 200 meter butterfly stroke, turning, mid-way swimming and 5 meters of a sprint to the side are established, and the model formulas are respectively as follows: y= 3.372R 2 -24.301、y＝2.948R 2 -13.689、y＝0.911R 2 +37.216、y＝0.600R 2 +44.988。
Optionally, by using the method for establishing the optimal performance model, an optimal performance model of the mixed swimming sport for men and women is established, which comprises the following steps:
four world excellent swimming athlete optimal performance model formulas of a male 200 m mixed swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=1.074r 2 +33.143、y＝4.024R 2 -40.591、y＝1.989R 2 +10.274、y＝2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of a male 400 m mixed swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=0.791R 2 +40.22、y＝2.105R 2 +7.372、y＝2.232R 2 +4.205、y＝3.196R 2 -19.900；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 400-meter mixed swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y=0.634R 2 +44.145、y＝2.034R 2 +9.153、y＝2.355R 2 +1.115、y＝1.026R 2 +34.359。
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (9)
1. A system for quantifying a specific skill level of a research competitive swimmer, comprising: acceleration measuring device, communication device and intelligent device;
the acceleration measuring device is used for measuring the athlete to swim with a specific technologyAcceleration of body advancement during locomotion and recording data time stamps at the beginning and end of a measured specific technical actionAnd->；
The communication device is used for stamping the measured acceleration value and the recorded time stampAnd->Transmitting to the intelligent device;
the intelligent device is used for calculating the time t=t of a specific technical action e -t s Calculating a player level evaluation parameter according to the acceleration value, and quantitatively researching the level of the competitive swimmer;
the intelligent device is specifically configured to:
obtaining the optimal score of excellent world swimming athletes, and establishing an optimal score model by utilizing the optimal score and adopting a binary once equation system solving mode:
average best performance R of world excellent swimmers m Establishing score and achievement equation 60=kr 2 m -C; best performance R of world excellent swimmers b Establishing score and achievement equation 100=kr 2 b -C; the above two equations 60=kr 2 m -C and 100=kr 2 b -C simultaneous equations, solving coefficients K and C, obtaining the world excellent swimmer performance model formula y=kr 2 -C；
And (3) scoring and evaluating the speed level of the tested athlete by adopting the optimal performance model, wherein the scoring method comprises the following steps of:
measuring several sub-optimal achievements T of a specific technical action to be evaluated i Respectively, each ofDenoted as T 1 、T 2 、T 3 、......、T n I is the number of measurements, n is the total number of measurements; calculating the average best performance of several durations of the measured specific technical action, recorded asThe method comprises the steps of carrying out a first treatment on the surface of the Calculate T i And->Is expressed as the standard deviation of
；
Then, the best result of the specific technical action to be evaluated is measured and recorded as T, and calculatedThe method comprises the steps of carrying out a first treatment on the surface of the If R is positive, then substituting the formula y=kr 2 -C, calculating y as a scoring value; if R is negative, then substituting the modified formula y= -KR 2 And C, calculating y as the score value of the current achievement.
2. The system according to claim 1, characterized in that the acceleration measuring device is fixed at a specific part of the athlete's body, in particular comprising an acceleration sensor having three axial components.
3. The system according to claim 1, characterized in that the acceleration measuring means measure the acceleration value component a of the horizontal forward swimming direction of a specific technical action at a specific time stamp x Acceleration component value a in vertical up-down direction y And an acceleration component value a in the horizontal left-right direction z ；
The intelligent device is specifically further configured to:
respectively calculating the component values of the horizontal, vertical, left and right directions relative to the total acceleration value a t Ratio of (2)And->；
Based on the ratio, the effective distribution of force during the play of the athlete is evaluated, and the acceleration value a in the horizontal forward direction is obtained x Is recorded as a positive value, and the acceleration value a in the horizontal backward direction x Is marked as negative, thenAt [ -1,1]The closer to 1, the better the force distribution forward in the horizontal direction is, which is beneficial to acceleration during swimming;
acceleration value a in the vertical upward direction y Is marked as positive and negative downwardsAt [ -1,1]The closer to 0, the smaller the force distribution in the up-down direction;
acceleration value a to the right of horizontal z Is marked as positive and negative to the left, thenAt [ -1,1]The closer to 0, the smaller the force distribution in the horizontal left-right direction.
4. The system according to claim 1, characterized in that the acceleration measuring device is fixed at a specific part of the athlete's body, including the waist or knee joint, and the acceleration value component of a specific technical action in the horizontal forward swimming direction of the specific part is measured for a specific period of time, recorded as the time series value a xi I is the number of values; measuring the acceleration component value in the vertical up-down direction, and recording as a time series value a yi I is the number of values; measuring acceleration component values in the horizontal left-right direction, and recording as time series values a zi I is the number of values;
when the acceleration measuring device is fixed at the waist, the acceleration time series value a of the horizontal forward direction is measured xi Calculating and comparing a with specific acceleration value as base line xi Evaluating the total power distribution of forward play in a specific period by integrating the area of the curve formed by the values above the baseline level in the specific period, and if the area is larger, the total power is larger; if the area is smaller, the overall force is smaller;
the time series values of the horizontal right are respectively recorded as the value +a zi The time series value of the horizontal left is recorded as a value-a zi Calculated value +a zi Sum value-a zi Cosine similarity of sequences;；/>at [ -1,1]The smaller the value, the similar distribution of swing force of the horizontal left and right deflection of the whole body during swimming, and the better balance of the force of the limbs at the two sides; the larger the value is, the larger the swing force distribution difference of the body deviation to the left and right directions is, and the worse balance of the bilateral limb force is;
when the acceleration measuring device is fixed at the knee joint, the acceleration value in the vertical upward direction is respectively recorded as a value +a yi Vertically downward is the value-a yi Calculated value +a yi Sum value-a yi Cosine similarity of (2)At [ -1,1]The smaller the value, the similar upward and downward swinging force conditions are shown when the leg swings around the hip joint as the axis; the larger the value, the larger the difference between upward and downward swing forces when the leg swings around the hip joint.
5. The system of claim 1, wherein the method for establishing the optimal performance model establishes the optimal performance model for the male and female freestyle sports, comprising:
the optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of free swimming for men and 5 meters on the edge of the middle-way swimming, are respectively: y=1.537R 2 +21.569、y=2.108R 2 +7.307、y=1.667R 2 +18.333；
Four world excellent swimming athlete optimal performance model formulas of a male 100 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=1.49R 2 +22.74、y=3.306R 2 -22.65、y=3.306R 2 -22.65、y=2.225R 2 +4.368；
Four world excellent swimming athlete optimal performance model formulas of a male 200 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y= 2.028R 2 +9.297、y=1.791R 2 +15.226、y=1.655R 2 +18.621、y=1.237R 2 +29.066；
Four world excellent swimming athlete optimal performance model formulas of a male 400 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=2.101R 2 +7.483、y=2.784R 2 -9.611、y=1.623R 2 +19.425、y=3.276R 2 -21.900；
Four world excellent swimming athlete optimal performance model formulas of a male 800 m free swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=4.298R 2 -47.456、y=3.370R 2 -24.259、y=3.901R 2 -37.524、y=2.788R 2 -9.700；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of a man 1500 meter free swimming are established, and the model formulas are respectively as follows: y= 2.081R 2 +7.978、y=3.511R 2 -27.778、y=4.990R 2 -64.748、y=5.082R 2 -67.047；
Establishes 50 meters free swimming for womenThe optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from the sports and 5 meters on the way, are respectively: y= 1.883R 2 +12.919、y=2.274R 2 +3.159、y=2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of sprinting to the side of the free swimming sport of 100 meters of women are established, and the model formulas are respectively as follows: y=1.608R 2 +19.805、y=2.473R 2 -1.829、y=2.797R 2 -9.914、y=0.714R 2 +42.143；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 200 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y= 2.214R 2 +4.649、y=2.595R 2 -4.879、y=3.573R 2 -29.335、y=1.862R 2 +13.462；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 400 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of sprinting to the side are established, and the model formulas are respectively as follows: y= 1.769R 2 +15.772、y=1.667R 2 +18.333、y=1.859R 2 +13.527、y=2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 800 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y=0.766R 2 +40.788、y=2.211R 2 +4.737、y=5.064R 2 -66.608、y=4.298R 2 -47.456；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 1500 meter free swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y=2.458R 2 -1.459、y=2.428R 2 -0.703、y=3.051R 2 -16.285、y=1.451R 2 +23.719。
6. The system of claim 1, wherein the method for establishing the optimal performance model establishes the optimal performance model for the backstroke of the male and female, comprising:
the optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of a male backstroke, 15 meters from middle-way trip and 5 meters from thorn to side, are established, and are respectively: y=2.882R 2 -12.052、y=1.796R 2 +15.088、y=2.647R 2 -6.176；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of 100 meters of backstroke for men are established, and the model formulas are respectively as follows: y= 1.927R 2 +11.833、y=1.667R 2 +18.333、y=1.702R 2 +17.450、y=2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of 200 meters of backstroke for men are established, and the model formulas are respectively as follows: y=1.921R 2 +11.975、y=2.647R 2 -6.176、y=3.227R 2 -20.659、y=1.781R 2 +15.47；
The optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of female backstroke, 15 meters from middle-way trip and 5 meters from thorn to side, are respectively established: y= 2.473R 2 -1.829、y=0.942R 2 +36.457、y=2.647R 2 -6.176；
Four world excellent swimmer optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of thorn to the side of 100 meters backstroke of women are established, and the model formulas are respectively as follows: y=2.757r 2 -8.917、y=1.945R 2 +11.368、y=2.516R 2 -2.891、y=2.011R 2 +9.723；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 200 meter backstroke, turning, mid-way swimming and 5 meters of a sprint to the side are established, and the model formulas are respectively as follows: y= 2.057R 2 +8.571、y=3.036R 2 -15.903、y=2.319R 2 +2.029、y=1.537R 2 +21.569。
7. The system of claim 1, wherein the method for establishing the optimal performance model establishes the optimal performance model for the breaststroke of the male and female, comprising:
four world excellent swimming athlete optimal performance model formulas of 15 meters of departure, turning, mid-way swimming and 5 meters of sprint to the side of the male 100 meters breaststroke are established, and the model formulas are respectively as follows: y=1.600r 2 +20.008、y=2.948R 2 -13.689、y=1.470R 2 +23.243、y=2.557R 2 -3.936；
Four world excellent swimming athlete optimal performance model formulas of 200 m breaststroke of men, namely 15 m departure, turning, mid-way swimming and 5 m sprint to the side are established, and the model formulas are respectively as follows: y=2.169R 2 +5.770、y=1.910R 2 +12.2406、y=1.949R 2 +11.267、y=1.974R 2 +10.632；
The optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of breaststroke of women, 15 meters from middle to middle and 5 meters from sprint to side, are respectively established: y=2.757r 2 -8.917、y=1.903R 2 +12.426、y=1.517R 2 +22.065；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of 100 meters breaststroke of women, turning over, mid-way swimming and punching to 5 meters are established, and the model formulas are respectively as follows: y= 2.907R 2 -12.671、y=3.24R 2 -21、y=2.230R 2 +4.262、y=2.844R 2 -11.111；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of 200 meters breaststroke sports of women, turning over, mid-way swimming and punching to 5 meters are established, and the model formulas are respectively as follows: y=1.791R 2 +15.226、y=2.040R 2 +9.012、y=1.873R 2 +13.174、y=1.769R 2 +15.772。
8. The system of claim 1, wherein the method for establishing the optimal performance model establishes the optimal performance model for butterfly stroke in men and women, comprising:
the optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from a 50-meter butterfly stroke for men, and 5 meters from middle to middle and from sprint to side, are respectively established: y= 1.816R 2 +14.588、y=2.2780R 2 +3.053、y=2.155R 2 +6.121；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of a male 100 meter butterfly swimming sport, turning, mid-way swimming and 5 meters of a sprint are established, wherein the model formulas are respectively as follows: y= 1.883R 2 +12.919、y=2.225R 2 +4.368、y=2.232R 2 +4.212、y=1.745R 2 +16.387；
Four world excellent swimmer optimal performance model formulas of 15 meters of a male 200 meter butterfly stroke, turning, mid-way swimming and 5 meters of a sprint to the side are established, and the model formulas are respectively as follows: y=1.901R 2 +12.485、y=2.535R 2 -3.369、y=1.574R 2 +20.645、y=2.757R 2 -8.917；
The optimal performance model formulas of three excellent swimming athletes in the world, which are 15 meters from 50 meters of butterfly swimming for female, 15 meters from middle to middle and 5 meters from sprint to side, are respectively established: y=2.875R 2 -11.871、y=0.869R 2 +38.280、y=3.276R 2 -21.900；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 100 meter butterfly stroke, turning, mid-way swimming and 5 meters of a sprint are established, wherein the model formulas are respectively as follows: y=2.234R 2 +4.142、y=2.057R 2 +8.571、y=0.604R 2 +44.902、y=7.049R 2 -116.225；
Four world excellent swimmer optimal performance model formulas of 15 meters of a female 200 meter butterfly stroke, turning, mid-way swimming and 5 meters of a sprint to the side are established, and the model formulas are respectively as follows: y= 3.372R 2 -24.301、y=2.948R 2 -13.689、y=0.911R 2 +37.216、y=0.600R 2 +44.988。
9. The system of claim 1, wherein the method for establishing the optimal performance model establishes the optimal performance model for the mixed swimming exercise for men and women, comprising:
establishes four world excellent swimmers with 200 meters mixed swimming for men to start 15 meters, turn around, swim in the middle and rush to 5 metersThe score model formulas are respectively as follows: y=1.074r 2 +33.143、y=4.024R 2 -40.591、y=1.989R 2 +10.274、y=2.319R 2 +2.029；
Four world excellent swimming athlete optimal performance model formulas of a male 400 m mixed swimming sport, namely 15 m departure, turning, mid-way swimming and 5 m sprint are established, wherein the model formulas are respectively as follows: y=0.791R 2 +40.22、y=2.105R 2 +7.372、y=2.232R 2 +4.205、y=3.196R 2 -19.900；
Four world excellent swimming athlete optimal performance model formulas of 15 meters of a female 400-meter mixed swimming sport, 15 meters of turning, mid-way swimming and 5 meters of a sprint are established, and the model formulas are respectively as follows: y=0.634R 2 +44.145、y=2.034R 2 +9.153、y=2.355R 2 +1.115、y=1.026R 2 +34.359。
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