physical activity - Answers any movement produced by muscles that increases energy expenditure;
includes occupational, household, leisure-time, and transportation activities
leisure-time physical activity - Answers any activity not related to a person's occupation; includes
competitive sports, recreational activities, and planned exercise training
exercise - Answers a subcategory of leisure-time physical activity; any activity that is purposeful,
planned, and structured
physical fitness - Answers the ability to carry out daily tasks with vigor and alertness, without undue
fatigue, and with ample energy to enjoy leisure-time pursuits and meet unforeseen emergencies
aerobic exercise - Answers exercise that involves the repetitive movement of large muscle groups,
increasing the body's use of oxygen and promoting cardiovascular health
resistance training - Answers exercise in which our muscles act against resistance
stretching - Answers exercise in which muscles are gently lengthened using slow, controlled movements
overload principle - Answers placing an extra physical demand on your body in order to improve your
fitness level
hypertrophy - Answers the increase in strength and size that results from repeated work to a specific
muscle or muscle group
atrophy - Answers a decrease in the size and strength of muscles that occurs when they are not worked
adequately
FITT principle - Answers the principle used to achieve an appropriate overload for physical training;
stands for frequency, intensity, time, and type of activity
frequency - Answers refers to the number of activity sessions per week you perform
intensity - Answers the amount of effort expended during an activity, or how difficult the activity is to
perform
low-intensity activities - Answers activities that cause very mild increases in breathing, sweating, and
heart rate
moderate-intensity activities - Answers activities that cause moderate increases in breathing, sweating,
and heart rate
vigorous-intensity activities - Answers activities that produce significant increases in breathing, sweating,
and heart rate; talking is difficult when exercising at this intensity
maximal heart rate - Answers the rate at which your heart beats during maximal-intenisty exercise