KAAP430 Chapter Notes - Chapter 13: Exercise Intensity, Cellular Respiration, Basal Metabolic Rate

• School: University of Delaware
• Department: Kinesiology & Appl Physiology
• Course: KAAP430
• Professor: Edwards David G

Document Summary

Barometric air pressure (pb) at or near sea level. Measure of total p that all of gases in the atmosphere exert on the body. Composes 20. 93% of air at any p. Po2 portion of pb exerted by only o2 molecules in the air. Hypobaria low patm causes lower po2 in inspired air limits: Pulmonary diffusion of o2 from the lungs. Altitude elevations > 1,500 m (few physiological effects on exercise performance are seen below). No effects on altitude on well-being; exercise performance. No effects on well-being; may diminish performance (especially in athletes performing at > 1,500 m): may be overcome with acclimation. May decrease maximal aerobic capacity & performance: optimal performance may or may not be restored with acclimation. Barometric pressure at any place on earth: related to the weight of the air in the atmosphere above that point. Does not remain constant varies with climate changes, time of year, and specific site where measurements are taken.