Biomechanics of Throwing PDF

Biomechanics of throwing 1. Phases of throwing - Preparatory phase: we place the parts of our body in a predisposition to throw, while our brain activates an anticipatory reaction to the movement that is going to be performed. - Main phase: we perform all the gestures...

Biomechanics of throwing 1. Phases of throwing - Preparatory phase: we place the parts of our body in a predisposition to throw, while our brain activates an anticipatory reaction to the movement that is going to be performed. - Main phase: we perform all the gestures that are necessary to complete the movement. It is the phase in which more different movements occur, so neuromuscular coordination is essential. - Final phase: the thrown object has just left our hand and the body makes a series of movements as a result of the residual kinetic energy that has been accumulated during the gesture. 2. Baseball - Arm acceleration: - Trunk bending. - Wind-up phase: - Adduction, internal rotation - Opposite knee to chest. and extension of the shoulder. - Concentric contraction of the - Ball release. rotator cuff (compression and rotation). - Arm deceleration phase: - Trunk bending. - Stride phase: - Eccentric contraction of the - Anterior lunge. rotator cuff to avoid - Abduction and external instability. rotation of the shoulder - Decceleration of the fast extension of the elbow. - Arm cooking phase: - Trunk bending. - Follow-through phase: the complete - Aduction and internal rotation body follows the trajectory of the of the shoulder movement until almost touching the ground with the hand. 3. Basketball - Preparation phase: - Shooting phase: - Dominan foot forward - Extension of the knee - Hands keep the ball - Extension of the elbow - Visual information is received - Ball release before starting the action - Flight phase: - Acceleration phase: - Flexion of the dominant wrist - Semi-extension of the knees - The parts of the body recover - Flexion of the shoulder and their normal position due to elbow, placing the ball in front the gravity and the kinetic of the forehead energy that has been accumulated during the gesture 4. Throw-in - Preparation phase: - Bring the ball up using one - Toe drag phase: hand. - Bring the arms forward. - One foot forward. - Drag the trailing foot across the ground. - Foot plant and arm cooking phase: - Keep the front foot planted - Big forward strip with the opposite foot. - Ball release: - Ball cocked back behind the - Straight trunk. head as far as possible. - Extend the arms forward. - Back arched. - Release the ball. - Follow through phase: Follow the movements until the kinetic energy runs out 5. Key points - Reach distance - Initial position - Final position - Muscle activation patterns - Technique - Range of movement of the different joints