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Chapter 12,
Question | Answer |
---|---|
physical activity | any form of movement that causes your body to use energy |
physical fitness | the ability to carry ourt daily tasks easily and have enough reserve energy to respond to unexpected demands |
exercise | purposeful physical activity tjhat is planned structured adn repetitivie and that improves or maintains physical fitness |
sedentary | involving little physical activity |
cardiorespiratory endurance | the ability of your heart lungs and blood vessels to send fuel and oxygen to your tissues during long periods of moderare to vigorous activity |
muscular endurance | the ability of your muscles to perform physical tasks over a period of time without tiring |
flexibility | the ablility to move your body parts through their full range of motion |
aerobic exercises | all rhythmic acitivities that use large muscle groups for an extended period of time |
anaerobic exercise | intense short burts of activits in which the muscles work so hard that they produce energy without using oxygen |
specificity | choosing the right types of activities to improve a given element of fitness |
overload | exercising at a level thats beyond your regular daily acitvities |
progression | graddually increasing the demands on your body |
warm-up | gentle cardiovascular avtivity that prepares the muscles for work |
cool-down | low-level activity that prepares your body to prepare for a resting state |
workout | the part of an exercise session when you are exercising at your highest peak |
resting heart rate | the number of times your heart beats per minutes when you are not active |
frostbite | damage to the skin and tissues caused by extreme cold |
hy pothermia | dangerously low body tempature |
overexertion | overworking the body |
heat exhaustion | a form of physical stress on the body caused by overheating |
heatstroke | a dangerous condition in which the body loses its ability to cool itself through perspiration |
muscle cramps | sudden and sometimes painful contraction of the muscles |
strains | overstretching and tearing a muscle |
sprains | injuries to the ligaments around a point |