Graduate Biomechanics Biomechanics of Throwing Fall 2007.

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Presentation transcript:

Graduate Biomechanics Biomechanics of Throwing Fall 2007

Applied Biomechanics Biomechanics of Throwing Objectives in Throwing Activities Maximum Distance

Applied Biomechanics Biomechanics of Throwing Objectives in Throwing Activities Maximum Distance Maximum Accuracy

Applied Biomechanics Biomechanics of Throwing Objectives in Throwing Activities Maximum Distance Maximum Accuracy Speed and Accuracy

Applied Biomechanics Biomechanics of Throwing Maximum Distance Determining Factors Release velocity Release angle Release Height Aerodynamics

Applied Biomechanics Biomechanics of Throwing Maximum Distance Determining Factors Release velocity Greater release velocities produce greater distance

Applied Biomechanics Biomechanics of Throwing Maximum Distance Gravity produces a constant acceleration that acts on the projectile from release to landing, causing the projectile to follow the path of a parabola. Determining Factors Release velocity Release angle

Applied Biomechanics Biomechanics of Throwing Maximum Distance Determining Factors Release velocity Release angle Distance Angle Optimum release angles produce the greatest distances

Applied Biomechanics Biomechanics of Throwing Maximum Distance Greater release heights produce greater distance Determining Factors Release velocity Release angle Release Height

Applied Biomechanics Biomechanics of Throwing Maximum Distance Determining Factors Release velocity Release angle Release Height Aerodynamics Lift

Applied Biomechanics Biomechanics of Throwing Maximum Accuracy Determining Factors Release Point Throwing Arc

Applied Biomechanics Biomechanics of Throwing Maximum Accuracy Determining Factors Release Point Release Point

Applied Biomechanics Biomechanics of Throwing Maximum Accuracy Determining Factors Release Point The ball follows a path that is a tangent to the release point on the arc of the throwing motion.

Applied Biomechanics Biomechanics of Throwing Maximum Accuracy Determining Factors Release Point Throwing Arc

Applied Biomechanics Biomechanics of Throwing Speed and Accuracy Determining Factors Kinetic Chain Throwing Arc Release Point Aerodynamics

Applied Biomechanics Biomechanics of Throwing Aerodynamics – “The Curve Ball” Why Does a Ball Curve in Flight ????? The Magnus Effect

Applied Biomechanics Biomechanics of Throwing The Magnus Effect Related Factors Ball Velocity – linear Ball Velocity – angular Surface Roughness High Pressure Low Pressure

Applied Biomechanics Biomechanics of Throwing The Magnus Effect