physical fitness
the ability of the body to perform daily physical activities without getting out of breath, sore, or overly tired
chronic disease
a disease that develops gradually and continues over a long period of time
health-related fitness
fitness qualities that are necessary to maintain and promote a healthy body
resting heart rate (RHR)
the number of times the heart beats per minute while at rest
target heart rate zone
a heart rate range within which the most gains in cardiorespiratory health will occur
FITT
a formula made up of four important parts involved in fitness training: frequency, intensity, time, and type of exercise
repetitions
the number of times an exercise is performed
set
a fixed number of repetitions followed by a rest period
dehyrdation
a state in which the body has lost more water than has been taken in
overtraining
a condition that occurs as a result of exceeding the recommendation of the FITT formula
dietary supplement
any product that is taken by mouth that can contain a dietary ingredient and is labeled as a dietary supplement
anabolic steriod
a synthetic version of the male hormone testosterone used for promoting muscle development
sleep deprivation
a lack of sleep
circadian rhythm
the body's internal system for regulating sleeping and walking patterns
insomnia
an inability to sleep, even if one is physically exhausted
sleep apnea
a sleeping disorder characterized by interruptions of normal breathing patterns during sleep