True Fitness Z5 Series manual E r i e s Tr e a d m i l l O w n e r s G u i d e

Appendix E - Glossary

Quinton, Schwinn, Stairmaster, Star Trac, Tectrix, and Trotter. See fitlinxx.com/csafe/.

exercise: the different metabolic state during any activity greater than rest. More commonly, the voluntary activity undertaken for health and conditioning reasons.

exercise intensity: a measurement of the extra metabolism above basal metabolic rate (BMR). Sometimes this measurement includes BMR, but this is less desirable. This measurement is usually using standardized formulas for different exercises. Direct measurement requires oxygen uptake monitoring equipment. Typical units of measurement are watts, calories per hour, METs, and VO2. Note that this is not the same as the amount of power being applied to an external machine, due the body’s efficiency of between 20% and 30%.

exercise, weight-bearing:where the body’s full weight must be lifted and moved. With exercise equipment, only treadmills and stairclimbers meet this requirement. (Ellipticals are not true weight- bearing exercise, although riding style does affect this somewhat.) The reason weight-bearing exercise is important to distinguish from non-weight-bearing exercise is because in the former, calorie consumption varies directly with body weight, whereas in the latter (which includes exercise bikes) body weight does not affect calorie consumption.

Z 5 S e r i e s Tr e a d m i l l O w n e r ' s G u i d e

99