Mathematical Models: Sports Gesture Analysis

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Mathematical models: Sports gesture analysis

Introduction

In the photogrammetric technique it could be said that the subject is going to be taken as a body system composed of a series of mass particles that form a body, that body can be represented as the subject, which will make different movements in space inDifferent moments and times In turn, this technique must fulfill a procedure it will count as follows: 

Locate at least 2 or more high -speed cameras that allows the execution to be clearly and precisely filmingthat you want to study through a data collection instrument.

Developing

The photogrammetry according to Izquierdo, is a movement analysis technique through the study of the images, was one of the first biomechanical analysis techniques that are applied in the scientific context at the end of the 19th century. The analysis of the movement carried out during the sports gesture allows technicians and coaches to know how the athlete performs the technique and thus propose possible modifications to the way of performing the gesture based on the anthropometric capacities and characteristics of the subjects.

 The first photogrammetry analysis were made by high -speed film recordings by using this methodology, a key variable is obtained: the position of any segment with respect to time, from which, it is possible to obtain linear speeds and accelerations and accelerationsAngular. 

In addition, inertial parameters can be analyzed with which the inverse kinetic analysis is performed, consisting of obtaining variables belonging to the dynamics based on kinematic variables. The versatility of this system causes studies to be carried out only in two dimensions, considering a plane of movement, or in three dimensions, considering all the space. To implement this analysis system, it is necessary to previously set three aspects:

  • Biomechanical study or model variables, which will be defined depending on the objectives of the study, such as the linear speed of the foot during the blow of a ball.
  • Anatomical model, which collects the bodily segments that will be analyzed in the study and will peer the variables of the study chosen. To determine these models, reflective markers are currently used that indicate the location of anatomical zones.
  • Reference system. According to the space in which the movement to be analyzed occurs, a reference system is designed to calibrate the space.

 At present this methodology is evolving a lot from the hand of the new methods of film analysis and with the algorithms of image analysis and recognition of forms. Through these techniques, very high details are achieved without the need to use markers adhered to the athlete, which gives more comfort, scientific rigor and usability to the resulting technological application, thus reducing the necessary time to obtain the results of the analysis of the analysis. Following this order of ideas, this research is being carried out with the intention of making known the biomechanical and mathematical model of snatch, career, launch and kicking of

Biomechanical model

It is a structure that will represent a relationship between the objectives of the skills and the factors that produce them. According to Suarez r. The process to follow to make a, moldemos are:

  1. Identification of the general objectives of the gesture.
  2. Gesture division in its phases or parts.
  3. Identification of the mechanical purposes of the parties.
  4. Identification of the factors that biomechanical that determine the achievement of mechanical purposes.
  5. Identification of biomechanical principles that relate biomechanical factors to execution.
  6. Enumeration of the critical factors of each party or the movements that should be made to satisfy the biomechanical principles, the biomechanical purposes and the general purposes.
  7. Biomechanical model structuring.
  8. Hierarchy of successes and errors.
  9. Errors correction

conclusion

It is a study that is conducted with a certain depth, which will allow the coach or person to be conducting the study, observe the possible technical errors or failures that is harmed to the athlete during the execution of the sports gesture, the sports technique divides itIn two, one is the quantitative analysis, where more precise results will be generated because the kinetic and kinematic variables are studied, while the other the qualitative one, which will allow describing the technique of skill, either, by a direct observation in full executionof skill or indirect.          

Free Mathematical Models: Sports Gesture Analysis Essay Sample

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