Fitness

6. the mobility of a joint
7. the characteristics of a tissue’s being easily stretched or bent and being able to return to its original size and shape
8. the proportion of lean tissue as compared with fat tissue in the body
11. the characteristics of the body that enable it to perform physical activity
20. the heartbeat rate that will condition a person’s cardiovascular system-fast enough to push the heart , but not so fast as to strain the heart
22. the ability of a muscle to sustain effort over a long time
23. an activity routine for strength conditioning that uses weights or machines to provide resistance against which the muscles can work.
24. the hundreds of small changes that cells make in response to physical activity that make the body more able to do work
26. the ability to bend joints without injury
27. loss of water

1. energy-producing processes that do not use oxygen
2. exercise routines for strength conditioning that use the parts of the body as weights
3. the length of time spent in each session of physical activity
4. the training principle that the body system, in order to improve, must be worked at increased frequencies, intensities and time.
5. the ability of the heart and lungs to sustain effort over a long time
9. an extra physical demand placed on the body
10. the study of how the body works and changes in response to exercise
12. the ability of a muscle to work against a resistance.
13. the number of activity units per unit of time
14. stroke a life-threatening condition that results from a buildup of body heat
15. the weight or other opposing force against which muscles must work
16. energy-producing processes that use oxygen
17. a serious stage of overheating which can lead to heat stroke
18. rate the number of heartbeats per minute
19. physically inactive
21. the degree of exertion during physical activity
25. a specific number of times to repeat a weight training exercise