Health - Chapter 4

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 reserve energy to respond to unexpected demands

sedentary lifestyle

a way of life that invloves little physical activity

osteoporosis

a condition characterized by a decrease in bone density, producing porus and fragile bones.

metabolism

the process by which your body gets energy from food

cardiorespiratory endurance

the ability of the heart, lungs, and blood vessels to utilize and send fuel and oxygen to the body's tissues during log periods of moderate-to-vigorous activity

muscular strength

the amount of force a musicle can exert

muscular endurance

the ability of the muscles to perform physical tasks over a period of time without becoming fatigued

flexibility

the ability to move a body part through a full range of motion

body composition

the ration of body fat to lean body tissue, including muscle, bone, water, and connective tissue such as ligaments, cartilage, and tendons

excercise

purposedful physical activity that is planned, structured, and repetitive and that improves or maintains personal fitness

aerobic excercise

any activity that uses large muscles groups, is rhythmic in nature and can be maintained continuously for at least 10 minutes three times a day fro 20 to 30 minutes at one time

Anaerobic excercise

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

overload

working the body harder than it is normally worked

progression

the gradual increase in overload necessary to achieve higher levels of fitness

specificity

particular excercises and activities improve particular areas of health-related fitness

warm-up

an activity that prepares the muscles for work

workout

the part of an excerise program when the activity is performed

FITT

frequency, intensity, time, type of activity

cool-down

an activity that prepares the muscles to return to a resting state

resting heart rate

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

training program

a program of formalized physical preparation for involvement in a sport or another physical activity

hydration

fluids so that the body functions properly

anabolic steroids

synthetic substances that are similar to the male horomone testosterone

health screening

a search or check for diseases or disorders that an indicidual would otherwise not have knowledge of or seek help for

overexertion

overworking the body

heat cramps

muscle spasms that results from a loss of large amounts of salt and water though perpiration

heatstroke

a condition in which the body losses its ability to rid itself of excess heat through perspiration

frostbite

a condition that results when body tissues become frozen

hypothermia

a condition in which body temperature becomes dangerously low

muscle cramp

spasm or sudden tightening of a muscle

strain

a condition resulting from damaging a muscle or tendon

sprain

an injury to the ligament surrounding a joint