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purposeful physical activity that is planned, structural, and repetitive, and that improves or maintains physical fitness

physical activity

any form of movement that causes your body to use energy

physical fitness

the ability to carry out daily tasks easily and have enough reserves to respond to unexpected demands


involving little physical activity

aerobic exercise

all rhythmic activities that use large muscle groups for and extended period of time

anaerobic exercise

intense, short bursts of activity in which the muscles work so hard that they produce energy without using oxygen

cardiorespiratory endurance

the ability of your heart, lungs, and blood vessels to send fuel and oxygen to your tissues during long periods of moderate, vigorous activity

muscular strength

the amount of force your muscles can exert

muscular endurance

the ability of your muscles to perform physical tasks over a period of time without tiring


the ability to move your body parts through their full range of motion

cool down

low-level activity that prepares your body to return to a resting state


expressing at a level that's beyond your regular daily activities


gradually increasing the demands on your body

resting heart rate

the number of times your heart beats per minute when you are not active


choosing the right types of activities to improve a given element of fitness

warm up

gentle cardiovascular activity that prepare the muscle for work

work out

the part of an exercise session when you are at your highest peak

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