Kinesiology 2241A/B Lecture Notes - Lecture 30: Angular Velocity, Radius, Sagittal Plane
9 Apr 2018
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As we have covered in previous lectures, when the body is airborne it is not possible to apply reaction forces to it. 2. the center of mass follows a parabolic pathway and the angular momentum is constant. However, this doesn"t mean we can"t use the angular momentum that is available to rotate in numerous ways while in the air. When in the air, rotation can occur about one, two or three of the principle axes simultaneously. The axis of rotation for each component of the rotation must pass through the center of mass center of mass. One of the sides of the square is longitudinal (twisting momentum), the other medio-lateral (somersaulting momentum) axis. Use right hand rule to see what way they are rotating along those axes. No matter what motions the segments do relative to the center of mass, they cannot change its pathway from parabolic.
