Health Chapter 12

5. the ability of your muscles to perform physical tasks over a period of time without tiring
8. any form of movement that causes your body to use energy
10. the part of an exercise session when you are exercising at your highest peak
12. the ability to carry out daily tasks easily and have enough reserve energy to respond to unexpected demands
16. a dangerous condition in which the body loses its ability to cool itself through perspiration
17. the ability of your heart, lungs, and blood vessels to send fuel and oxygen to your tissues during long periods of moderate to vigorous activity
21. a form of physical stress on the body caused by overheating
22. overworking the body
23. damage to the skin and tissues caused by extreme cold

1. the amount of force your muscles can exert
2. gentle cardiovascular activity that prepares the muscles for work
3. injuries to the ligaments around a joint
4. all rhythmic activities that use large muscle groups for an extended period of time
6. intense, short bursts of activity in which the muscles work so hard that they produce energy without using oxygen
7. dangerously low body temperature
9. overstretching and tearing a muscle
11. the ability to move your body parts through their full range of motion
13. choosing the right type of activities to improve a given element of fitness
14. low-level activity that prepares your body to return to a resting state
15. involving very little physical activity
18. gradually increasing the demands on your body
19. exercising at a level that's beyond your regular daily activities
20. purposeful physical activity that is planned, structured, and repetitive, and that improves or maintains physical fitness