Fundamentos de la Ciencia del Deporte_ Rendimiento y Recuperación_ Biomecánica deportiva, bioquímica y nutrición _ Alison

Summary

The biomechanics of sport focuses on analyzing human movement, the forces acting on the body, how these forces change with time, and the movements of objects such as acceleration and impulse. It also improves athletes' performance and significantly enhances sports equipment. In this module, we will discuss biomechanics, acceleration, lever systems in the body, biomechanical testing methods, and various changes in biomechanics during sports. The objectives of learning are to explore biomechanics, understand forces, torques, moment, and the laws of motion. There are two types of biomechanics, kinetic and kinematics. Kinetic shows how the relationship between the force acting on the body and how it changes when in motion. It includes systems such as the muscular, neurological, and skeletal systems. Kinematics focuses on the movement of objects, such as speed, acceleration, displacement, the laws of motion, impulse, and many more. Forces and torques. A force is not more than an push or pull that can cause a change in the movement of a segment of the body. The operations of the forces create and modify the movement. A torque or moment of force occurs when a force rotates a segment of the body or a racket. In all tennis strokes, the muscles generate torque to rotate segments of the body. The internal rotation of the upper arm during the service stroke is the result of an internal rotation torque in the shoulder joint induced by muscle activities, the dorsal arch, and parts of the pectoral major and deltoid muscles. A player typically applies a greater muscular force to rotate a segment with greater power. The laws of motion of Newton The three laws of motion of Newton describe how forces produce movement in sports. The laws of inertia, acceleration, and reaction are the common names of these laws. Below, we will explain each of them in detail. Law of inertia According to Newton's first law of inertia, objects tend to resist changes in their state of motion. Unless