CN115330192A - Evaluation method and device for sport efficiency of ice hockey sport equipment - Google Patents
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Abstract
The invention relates to an evaluation method and device for the sports efficiency of ice hockey sports equipment. According to the method, the pre-selection index system is established, the evaluation indexes in the pre-selection index system are screened, and the weights of the evaluation indexes are determined, so that the evaluation of the sports efficiency of the ice hockey sport equipment is obtained according to the weights, the problem that the evaluation indexes of the sports efficiency of the ice hockey sport equipment are single and are not systematic can be effectively solved, and scientific guidance can be provided for the design, production, manufacture and improvement of the ice hockey sport equipment.
Description
Technical Field
The invention belongs to the technical field of sports, and particularly relates to a method and a device for evaluating sports efficiency of ice hockey sports equipment.
Background
Along with the improvement of the living standard of people, people generally pay more attention to the physical health, the best mode for keeping the physical health is sports, and the ice hockey sport is taken as ice sports and is more and more popular with people due to richer interestingness.
The ice hockey sports equipment is required to be used in ice hockey sports, the ice hockey sports equipment comprises an ice hockey helmet, ice hockey gloves, ice hockey protectors, ice hockey shoes and ice hockey skates, and the variety of the ice hockey sports equipment is seen to be various, but the problems that the evaluation index is single and the systematicness is lacked exist in the evaluation of the sports efficiency of the ice hockey sports equipment at home and abroad at present, and the sports efficiency evaluation index system for the ice hockey sports equipment does not exist in the prior art, so that the design, the production, the manufacture and the improvement of the ice hockey sports equipment are severely limited. Therefore, a systematic and scientific exercise efficiency evaluation index system of the ice hockey sport equipment is urgently needed to provide scientific theoretical guidance for design, production, manufacture and improvement of the ice hockey sport equipment.
Disclosure of Invention
In view of the above, the present invention provides a method and a device for evaluating exercise performance of a hockey puck sport device, so as to solve the problems of single evaluation index and lack of systematicness existing in evaluation of exercise performance of a hockey puck sport device in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for evaluating exercise performance of ice hockey equipment comprises the following steps:
constructing a preselected index system for evaluating the exercise efficiency of ice hockey sports equipment;
screening evaluation indexes based on the preselected index system;
and determining the weight of the evaluation index, and evaluating the exercise efficiency of the ice hockey sport equipment according to weight distribution.
Further, the constructing of the preselected index system for evaluating the exercise performance of the ice hockey sport equipment comprises the following steps:
constructing a hierarchical structure of a preselected index system for evaluating the exercise efficiency of the ice hockey sport equipment; the hierarchical structure includes: a target layer and an index layer;
the target layer comprises a primary target and a secondary target, the primary target is a sports efficiency evaluation index of the ice hockey sport equipment, and the secondary target comprises an ice hockey helmet, ice hockey gloves, ice hockey protectors, ice hockey skates and ice hockey skates;
the index layer comprises a first-level index and a second-level index, wherein the first-level index comprises comfort, protectiveness, visual field, cognition, drag reduction, activity range, flexibility and force/touch feedback; the second level index includes hot and humid regulatory nature, gas permeability, laminating nature, skin sense of touch, health, dress easy regulation nature, wears to take off convenience, weight, focus position, buffering and shock attenuation, fastening, protection scope, penetration resistance, cut resistance, wearability, strength, rigidity, temper, cutting edge radian, cutting edge height and sword sense.
Further, the method for screening the evaluation index by adopting a Del-phi method comprises the following steps:
obtaining an importance evaluation questionnaire of a subject on an evaluation index of the sport efficiency of ice hockey equipment;
acquiring the importance of an evaluation index according to the questionnaire;
calculating an index variation coefficient and a Kendell harmonic coefficient of an evaluation index according to the importance degree;
and screening the evaluation index according to the index variation coefficient and the Kendell harmony coefficient.
Further, an index variation coefficient of the evaluation index is calculated according to the importance degree in the following manner,
wherein cv is the index variation coefficient, s is the standard deviation of the evaluation index importance degree,
the importance is an average value of the importance of the evaluation index, and the importance is a numerical value;
calculating Kendell harmony coefficient of the evaluation index according to the importance degree in the following way,
when there is no repetition value in the numerical value of the importance, the Kendell harmonic coefficient is
When the same value exists in the values of the importance, the Kendall Harmonious coefficient is
Wherein K is the number of questionnaire subjects, N is the number of sports efficiency evaluation indexes of the ice hockey sports equipment to be evaluated, and R i Is the sum of the importance scores of the evaluated indexes in the ith questionnaire, n ij The number of the same indexes of the jth repeated index importance value in the ith questionnaire.
Further, the screening of the evaluation index according to the index variation coefficient and the Kendall harmonic coefficient includes:
and when the index variation coefficient of the evaluation index is larger than a first preset value and the Kendall harmony coefficient is within the fluctuation range of a second preset value, considering that the evaluation index meets the screening standard, and screening the evaluation index.
Further, the determining the weight of the evaluation index includes:
establishing a hierarchical model according to the hierarchical structure;
constructing a judgment matrix based on the hierarchical model;
and calculating the weight of the evaluation index according to the judgment matrix, and sequencing the importance of the evaluation index.
Further, the judgment matrix is constructed by taking A as a target,
wherein u is i 、u j (i, j =1,2, \8230;, n) represents a factor, u ij Denotes u i For u to u j The degree of importance of (a) is,
n is the dimension of the matrix, and P is a judgment matrix;
calculating the eigenvector corresponding to the largest characteristic root of the judgment matrix in the following way,
wherein λ is max Judging the maximum characteristic root of the matrix; w is evaluation index feature vector, the obtained feature vector W is normalized to be the importance ranking of each evaluation factor, and the component W of W i Are the weight values, i.e. weight assignments, of the respective index sheet ordering.
Further, the determining the weight of the evaluation index further includes:
judging whether the weight distribution of the evaluation indexes is reasonable or not comprises the following steps:
the decision matrix is checked for consistency in the following way,
wherein, CR is the random consistency ratio of the judgment matrix, CI is the consistency index of the judgment matrix, and RI is the average random consistency index preset by the judgment matrix.
And further, judging whether the random consistency ratio is smaller than a third preset value, and if so, continuing to determine the index weight of each level of the ice hockey sport equipment sport efficiency evaluation index system.
The embodiment of the application provides a hockey sport equipment motion efficiency evaluation device, includes:
the building module is used for building a preselected index system for evaluating the exercise efficiency of the ice hockey sports equipment;
the screening module is used for screening evaluation indexes based on the preselected index system;
and the evaluation module is used for determining the weight of the evaluation index and evaluating the exercise efficiency of the ice hockey sport equipment according to weight distribution.
By adopting the technical scheme, the invention can achieve the following beneficial effects:
the invention provides a method and a device for evaluating the sports efficiency of ice hockey equipment. In addition, the application establishes a unified standard for evaluating the sports efficiency of the ice hockey sports equipment, fills the blank of the sports efficiency evaluation technology of the ice hockey sports equipment and promotes the development of the ice hockey sports equipment industry.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the steps of the exercise performance evaluation method of the ice hockey sport equipment of the invention;
FIG. 2 is a schematic diagram of a preselected index architecture for athletic performance evaluation of the hockey puck sporting equipment of the present invention;
fig. 3 is a schematic structural view of the exercise performance evaluation device of the ice hockey sport equipment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The following describes a specific method and device for evaluating exercise performance of ice hockey sport equipment provided in the embodiments of the present application with reference to the accompanying drawings.
As shown in fig. 1, the method for evaluating exercise performance of ice hockey sport equipment provided in the embodiment of the present application includes:
s1, constructing a preselected index system for evaluating the exercise efficiency of ice hockey sports equipment;
it is to be understood that, as shown in fig. 2, the construction of the preselected index system is first a hierarchy of the preselected index system for the evaluation of athletic performance of ice hockey sport equipment, the hierarchy of the index system including a target layer and an index layer; secondly, selecting reasonable evaluation indexes;
the target layer comprises a first-level target and a second-level target, the first-level target is a sports efficiency evaluation index of the ice hockey sport equipment, and the second-level target comprises five items which are respectively an ice hockey helmet, ice hockey gloves, ice hockey protectors, ice hockey shoes and ice hockey skates;
the index layer comprises a first-level index and a second-level index; the first-level indexes comprise eight indexes which are comfort, protection, vision field, cognition, drag reduction, activity range, flexibility and force/touch feedback respectively; the secondary indexes include twenty-six indexes, namely heat and humidity adjustment, air permeability, fitting property, skin touch feeling, sanitation property, wearing adjustability, wearing convenience, weight, gravity center position, buffering and damping property, fastening property, protection range, penetration resistance, cutting resistance, wear resistance, force sense, slip resistance, weight, smoothness, wear resistance, strength, hardness, toughness, blade radian, blade height and blade sense.
It should be noted that the primary and secondary targets for each secondary target are different, specifically, the hockey helmet includes comfort, protection, field of view, cognition, drag reduction, and range of motion and flexibility, while comfort includes thermo-moisture adjustability, breathability, fit, skin feel, hygiene, ease of adjustment in wear, weight, and center position, and protection includes cushioning and shock absorption, tightness, protection, and penetration resistance.
Hockey gloves include comfort, protection, range of motion and flexibility, and force/tactile feedback, while comfort includes: heat and humidity regulation, air permeability, fit, skin feel, hygiene, weight, and ease of donning and doffing; the protection performance comprises buffering and shock absorption, tightness, protection range, penetration resistance, cutting resistance and wear resistance; force/haptic feedback includes force sense and slip resistance.
The protective tool for the ice hockey comprises comfort, protection, a movable range and flexibility, wherein the comfort comprises heat and humidity adjustment, air permeability, fitting property, skin touch, sanitation, easy adjustment in wearing and weight; the protective properties include: cushioning and shock attenuation, fastening nature, protection zone, resistance to penetration and cut resistance.
The ice hockey skates comprise comfortableness, protectiveness, resistance reducing performance and range of motion and flexibility, and the comfortableness comprises heat and humidity adjustability, air permeability, fitting performance, skin touch, sanitation, weight and easy adjustment in wearing; the protective properties include: buffering and shock attenuation, fastening, penetration resistance and cut resistance.
The hockey skate includes weight, lubricity, wear resistance, strength, hardness, toughness, blade camber, blade height, and feel.
In summary, the evaluation indexes of each ice hockey sport device are different, and the indexes are set in the same index system to form a preselected index system.
S2, screening evaluation indexes based on the preselected index system;
in some embodiments, the Del-phi method is used to screen the evaluation index, and comprises:
obtaining an importance evaluation questionnaire of a subject on an evaluation index of the sport efficiency of ice hockey equipment;
acquiring the importance of an evaluation index according to the questionnaire;
calculating an index variation coefficient and a Kendell harmony coefficient of the evaluation index according to the importance;
and screening the evaluation index according to the index variation coefficient and the Kendell harmony coefficient. In the application, a subject can be filled in an evaluation questionnaire in advance, then data in the questionnaire are obtained, and the importance of an evaluation index is obtained, wherein the importance is a specific importance value, and then an index variation coefficient and a Kendel harmony coefficient of the evaluation index are calculated according to the importance, specifically, the index variation coefficient cv is;
wherein s is a standard deviation of the evaluation index importance value,
the average value of the evaluation index importance degrees is obtained; the index Kendel harmony coefficient has two conditions, and when the index importance value has no repeated value, the Kendel harmony coefficient w is as follows:
k is the number of questionnaire scorers, namely the number of testees, N is the number of sports efficiency evaluation indexes of the ice hockey sports equipment to be evaluated, R i Is the sum of the importance scores of the evaluated indexes in the ith questionnaire;
when the index importance values have the same value, the Kendell harmony coefficient w is:
in the formula n ij The number of identical indicators for the jth repeated indicator importance value in the ith questionnaire.
In some embodiments, the screening evaluation indexes according to the index variation coefficient and Kendell harmony coefficient includes:
when the index variation coefficient of the evaluation index is larger than a first preset value and the Kendall harmonic coefficient is within the fluctuation range of a second preset value, the evaluation index is considered to accord with a screening standard, and the evaluation index is screened
Specifically, in the present application, the first preset value is 0.25, the second preset value is 0.5, that is, the index variation coefficient cv is greater than 0.25, and the kendell harmony coefficient w fluctuates up and down at 0.5 as the evaluation index screening criterion, the evaluation index is screened, otherwise, the evaluation index is discarded.
And S3, determining the weight of the evaluation index, and evaluating the exercise efficiency of the ice hockey sport equipment according to weight distribution.
In some embodiments, the determining the weight of the evaluation index includes:
establishing a hierarchical model according to the hierarchical structure;
constructing a judgment matrix based on the hierarchical model;
and calculating the weight of the evaluation index according to the judgment matrix, and sequencing the importance of the evaluation index.
Specifically, the determining of the evaluation index weight refers to establishing a judgment matrix based on an analytic hierarchy process to determine the index weight of each level of an evaluation index system; the analytic hierarchy process for determining the index weight comprises the following steps:
the hierarchical model established in the application comprises a target hierarchical index layer and a target hierarchical index layer; the target layer comprises a primary target and a secondary target, and the index layer comprises a primary index and a secondary index;
the decision matrix is the basis of the analytic hierarchy process, and A represents the target, u i 、u j (i, j =1,2, \8230;, n) represents a factor, u ij Represents u i For u is paired j And u is ij Constructing an A-U judgment matrix P;
wherein the content of the first and second substances,
wherein n is a matrix dimension, and the matrix P forms a judgment matrix;
according to the judgment matrix, the maximum characteristic root lambda of the matrix is obtained max The corresponding feature vector w;
λ max judging the maximum characteristic root of the matrix; w is evaluation index feature vector, the obtained feature vector W is normalized to be the importance ranking of each evaluation factor, and the component W of W i Is the weight value of the corresponding index list ordering, namely the weight distribution;
in order to determine whether the weight distribution is reasonable, consistency check needs to be carried out on the judgment matrix;
wherein, CR is the random consistency ratio of the judgment matrix; the CI is a consistency index of the judgment matrix, and the CI formula is as follows:
wherein, RI is an average random consistency index of the judgment matrix, and RI values under different n values refer to the following table:
| n | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| RI | 0 | 0 | 0.58 | 0.9 | 1.12 | 1.24 | 1.32 | 1.41 | 1.45 |
in some embodiments, whether the random consistency ratio is smaller than a third preset value or not is judged, and if the random consistency ratio is smaller than the third preset value, the index weights of all levels of the ice hockey sport equipment exercise performance evaluation index system are continuously determined;
if CR <0.1, the consistency condition is satisfied, and the index weight of each level of the ice hockey sport equipment sport efficiency evaluation index system can be further determined. It is understood that the third preset value is 0.1.
In summary, the method for evaluating the exercise efficiency of the ice hockey sport equipment effectively solves the problem that the evaluation index of the exercise efficiency of the ice hockey sport equipment is single and is not systematic, can provide scientific guidance for design, production, manufacture and improvement of the ice hockey sport equipment, establishes a unified standard for evaluating the exercise efficiency of the ice hockey sport equipment, fills the gap of the exercise efficiency evaluation technology of the ice hockey sport equipment, and promotes the development of the ice hockey sport equipment industry.
As shown in fig. 3, an embodiment of the present application provides an exercise performance evaluation device for ice hockey sports equipment, including:
the building module 301 is used for building a preselected index system for evaluating the sports efficiency of the ice hockey sport equipment;
a screening module 302, configured to screen an evaluation index based on the preselected index system;
and the evaluation module 303 is configured to determine the weight of the evaluation index, and evaluate the exercise performance of the ice hockey sport equipment according to the weight distribution.
The working principle of the exercise efficiency evaluation device for the ice hockey sport equipment provided by the application is that the construction module 301 constructs a preselected index system for evaluating the exercise efficiency of the ice hockey sport equipment; the screening module 302 screens evaluation indexes based on the preselected index system; the evaluation module 303 determines the weight of the evaluation index, and evaluates the exercise performance of the ice hockey sport equipment according to the weight distribution.
In summary, the invention provides a method and a device for evaluating the exercise performance of ice hockey sports equipment, wherein the method comprises the steps of constructing a preselected index system for evaluating the exercise performance of ice hockey sports equipment, screening evaluation indexes based on the preselected index system, determining the weights of the evaluation indexes, and evaluating the exercise performance of ice hockey sports equipment according to weight distribution. According to the method, the pre-selection index system is established, the evaluation indexes in the pre-selection index system are screened, and the weights of the evaluation indexes are determined, so that the evaluation of the sports efficiency of the ice hockey sport equipment is obtained according to the weights, the problem that the evaluation indexes of the sports efficiency of the ice hockey sport equipment are single and are not systematic can be effectively solved, and scientific guidance can be provided for the design, production, manufacture and improvement of the ice hockey sport equipment.
It can be understood that the method embodiments provided above correspond to the apparatus embodiments described above, and corresponding specific contents may be referred to each other, which are not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A method for evaluating exercise performance of ice hockey equipment is characterized by comprising the following steps:
constructing a preselected index system for evaluating the exercise efficiency of ice hockey equipment;
screening evaluation indexes based on the preselected index system;
and determining the weight of the evaluation index, and evaluating the exercise efficiency of the ice hockey sport equipment according to weight distribution.
2. The method of claim 1, wherein constructing a preselected index system for athletic performance evaluation of ice hockey playing equipment comprises:
constructing a hierarchical structure of a preselected index system for evaluating the exercise efficiency of the ice hockey sport equipment; the hierarchical structure includes: a target layer and an index layer;
the target layer comprises a primary target and a secondary target, the primary target is a sports efficiency evaluation index of the ice hockey sport equipment, and the secondary target comprises an ice hockey helmet, ice hockey gloves, ice hockey protectors, ice hockey skates and ice hockey skates;
the index layer comprises a first-level index and a second-level index, wherein the first-level index comprises comfort, protectiveness, visual field, cognition, drag reduction, activity range, flexibility and force/touch feedback; the second level index includes hot and humid regulation nature, gas permeability, laminating nature, skin sense of touch, health nature, dress easy regulation nature, wears to take off convenience, weight, focus position, buffering and shock attenuation, fastening nature, protection scope, resistance to penetration, cut resistance, wearability, strength, hardness, temper, cutting edge radian, cutting edge height and sword sense.
3. The method according to claim 1, wherein the screening of the evaluation index by the Del-phi method comprises:
obtaining an importance evaluation questionnaire of a subject on an exercise efficiency evaluation index of ice hockey equipment;
acquiring the importance of an evaluation index according to the questionnaire;
calculating an index variation coefficient and a Kendell harmonic coefficient of an evaluation index according to the importance degree;
and screening the evaluation index according to the index variation coefficient and the Kendell harmony coefficient.
4. The method according to claim 3, wherein an index variation coefficient of an evaluation index is calculated from the importance degree in such a manner that,
wherein cv is the index variation coefficient, s is the standard deviation of the evaluation index importance degree,
the evaluation index importance is an average value of evaluation index importance, and the importance is a numerical value;
calculating Kendell harmony coefficient of the evaluation index according to the importance degree in the following way,
when there is no repetition value in the numerical value of the importance, the Kendell harmonic coefficient is
When the same value exists in the values of the importance, the Kendall Harmonious coefficient is
Wherein K is the number of questionnaire subjects, N is the number of sports efficiency evaluation indexes of the ice hockey sports equipment to be evaluated, and R i Is the sum of the importance scores of the evaluated indexes in the ith questionnaire, n ij The number of the same indexes of the jth repeated index importance value in the ith questionnaire.
5. The method of claim 3, wherein the screening evaluation indexes according to the index variation coefficient and Kendall harmony coefficient comprises:
and when the index variation coefficient of the evaluation index is larger than a first preset value and the Kendell harmonic coefficient is within the fluctuation range of a second preset value, the evaluation index is considered to accord with a screening standard, and the evaluation index is screened.
6. The method of claim 2, wherein determining the weight of the evaluation index comprises:
establishing a hierarchical model according to the hierarchical structure;
constructing a judgment matrix based on the hierarchical model;
and calculating the weight of the evaluation index according to the judgment matrix, and sequencing the importance of the evaluation index.
7. The method of claim 6, wherein the decision matrix is a decision matrix constructed targeting A,
wherein u is i 、u j (i, j =1,2, \8230;, n) represents a factor, u ij Represents u i For u is paired j The importance of (a) to (b),
n is the dimension of the matrix, and P is the judgment matrix;
calculating the feature vector corresponding to the maximum feature root of the judgment matrix in the following way,
wherein λ is max Judging the maximum characteristic root of the matrix; w is evaluation index feature vector, the obtained feature vector W is normalized to be the importance ranking of each evaluation factor, and the component W of W i Are the weight values, i.e. weight assignments, of the respective index sheet ordering.
8. The method of claim 7, wherein the determining a weight of the evaluation index further comprises:
judging whether the weight distribution of the evaluation indexes is reasonable or not comprises the following steps:
the decision matrix is checked for consistency in the following way,
wherein, CR is the random consistency ratio of the judgment matrix, CI is the consistency index of the judgment matrix, and RI is the average random consistency index preset by the judgment matrix.
9. The method of claim 8,
and judging whether the random consistency ratio is smaller than a third preset value, and if so, continuing to determine the index weight of each level of the ice hockey sport equipment sport efficiency evaluation index system.
10. An evaluation device for sports performance of ice hockey sports equipment is characterized by comprising:
the construction module is used for constructing a preselected index system for evaluating the exercise efficiency of the ice hockey sport equipment;
the screening module is used for screening evaluation indexes based on the preselected index system;
and the evaluation module is used for determining the weight of the evaluation index and evaluating the exercise efficiency of the ice hockey sport equipment according to weight distribution.
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