biomechanics:the application of principals to the study & functional aspects of the human * body the of living mechanical anatomical organisms; application: to imp movement & prevent injury human movement: CNS · + muscles (Newton's Law) musculoskeletal I 1 sys-move FORCE mechanical for · study ex: chosen systems:object/group runner;whole body, linear motion:all parts in direction same · along upper, sys moving of speed;translation + line: rectilinear ·curved leg path:curvilinear angular axis of motion:rotation around rotation combo of general motion: angular;most human directional terms linear & movement planes Measuring Kinematic Quantities Video & Film Edward to Muybridge:used assess motion analysis Coach's · photography movement;human gait still mostly by apps: used couch; Eye Coach Now · · DartFish things · to Express consider: speed:comerc w/higher frame rate for faster movements · # cameras: of more for more complex movement · position:camera plane to be must motion of perpendicular assessing joint if angle Assessment Movement biomechanical goal: identify may of lead to movement injury/dec quantitative: ex: · measure gua · variable angles, errors form risk by variable of of calculations assess speed, stride litative: nonnumeric ex: (inc that performance) interest followed ment of errors checking, lengths description direction Qualitative Movement Analysis