BIOMECHANICS APPLICATIONS

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Presentation transcript:

BIOMECHANICS APPLICATIONS

DEFINITIONS Biomechanics - mechanics of structure &function Mechanics - statics & dynamics Statics - nonmoving systems Dynamics - kinetics & kinematics Kinetics - forces that cause movement Kinematics - describing motion

Kinetics - forces buoyancy centripetal elasticity fluid drag fluid lift friction gravity muscle pressure reaction

Kinematics- describe movement velocity - m/sec., degrees or rads/sec. (57.3) acceleration - change in v OR change in direction displacement - in meters or degrees or radians momentum - M = mv OR L = I

Efficient Movement minimal energy expenditure necessary for endurance sports and repetitive tasks in labor allows performer to endure longer allows performer to performer faster with less energy expended

Effective Movement not concerned with efficiency most appropriate movements to achieve OPO [Overall Performance Objective] most appropriate sequence of movements [e.g. large parts then small parts]