ERIC Number: ED110427
Record Type: Non-Journal
Publication Date: 1975-May
Reference Count: N/A
A Computational Technique to Determine the Angular Displacement, Velocity and Momentum of a Human Body.
Hay, James G.; Wilson, Barry D.
The angular momentum of a human body derived from both the angular velocity and angular displacement, utilizing cinematographic records has not been adequately assessed, prior to this study. Miller (1970) obtained the angular momentum but only during the airborne phase of activity. The method used by Ramey (1973) involved a force platform, but also had its limitations because it had restricted use to only force platform activities. The mass of segment, the transverse moment of intertia of segment, the angular velocity of segment i about its transverse axis, the projected distance between the c.g. of segment i and the c.g. of the whole body, and the angular velocity of the c.g. of segment i about the c.g. of the whole body, were used in this study to develop a formula to represent the angular momentum of a multi-segment body about one of its axes. Results indicated that the method used in this study yields an acceptable first approximation of the angular momentum of a human body in motion. This method can be used for numerous tests of different physical activities. (Cinematographic diagrams are included.) (MK)
Publication Type: Reports - Research
Education Level: N/A
Authoring Institution: N/A