graduate biomechanics biomechanics of throwing fall 2007

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Graduate BiomechanicsGraduate Biomechanics

Biomechanics of ThrowingBiomechanics of ThrowingFall 2007Fall 2007

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Objectives in Throwing Activities

• Maximum Distance

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Objectives in Throwing Activities

• Maximum Distance

•Maximum Accuracy

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Objectives in Throwing Activities

• Maximum Distance

• Maximum Accuracy

•Speed and Accuracy

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Maximum Distance

Determining Factors

Release velocity

Release angle

Release Height

Aerodynamics

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Maximum Distance

Determining Factors

Release velocity

Greater release velocities produce greater distance

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics 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 BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Maximum Distance

Determining Factors

Release velocity

Release angle

Distance

Ang

le

Optimum release angles producethe greatest distances

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Maximum Distance

Greater release heights produce greater distance

Determining Factors

Release velocity

Release angle

Release Height

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Maximum Distance

Determining Factors

Release velocity

Release angle

Release Height

Aerodynamics

Lift

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Maximum Accuracy

Determining Factors

Release Point

Throwing Arc

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Maximum Accuracy

Determining Factors

Release Point

Release Point

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics 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 BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of ThrowingMaximum AccuracyDetermining Factors

Release Point

Throwing Arc

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

Speed and Accuracy

Determining Factors

Kinetic Chain

Throwing Arc

Release Point

Aerodynamics

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of ThrowingAerodynamics – “The Curve Ball”

Why Does a Ball Curve in Flight ?????

The Magnus Effect

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

The Magnus Effect

Related Factors

Ball Velocity – linear

Ball Velocity – angular

Surface Roughness

High Pressure

Low Pressure

Applied BiomechanicsApplied Biomechanics

Biomechanics of ThrowingBiomechanics of Throwing

The Magnus Effect

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