HSS 2111 Study Guide - Midterm Guide: Ground Reaction Force, List Of Flexors Of The Human Body, Shoulder Joint

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 2111
• Professor: Tien Nguyen

Document Summary

Different postural positions: change of position and alignment of body parts. ex. Variables: body type, body composition, weight distribution, connective tissues, etc. ex. Requires the least energy to counterbalance forces of gravity. Co(cid:374)t(cid:396)olli(cid:374)g the (cid:271)od(cid:455)"s positio(cid:374) i(cid:374) spa(cid:272)e fo(cid:396) (cid:271)oth sta(cid:271)ilit(cid:455) a(cid:374)d o(cid:396)ie(cid:374)tatio(cid:374): Keeps center of mass (com) over the base of support (bos) Puts least amount of stress and strain on different segments of the body (muscles, connective tissues, bones, and joints) Postural stability: ability to maintain projected com within the limits of the bos (i. e. balance) Postural orientation: ability to maintain appropriate relationship between body segments and the environment (i. e. coordination and agility) Keeps head upright, despite changes in position of the body (high concentration of muscle spindles in the neck) Differences in pressure = information regarding position of the com. In upright posture, com must always fall within the bos.