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Multiple forces act on an object at the same time. The size and direction of these forces determines the movement of the object. Show the forces acting on an object in a free body diagram. The arrows ...

Studies of visual perception indicate that aged humans show decreased visual acuity, binocular summation, contrast sensitivity, motion sensitivity and wavelength sensitivity 1,2,3,4. Senescent humans ...

Background A few small studies have reported on the mechanisms of ACL injury in professional male football. Aim To describe the mechanisms, situational patterns and biomechanics (kinematics) of ACL ...