Chapter 6 Key Points - PE 185

Cardiorespiratory Fitness

Most important health-related component of fitness

Cardiovascular System

The heart and blood vessels

Arteries

Blood vessels that carry blood away from the heart

Veins

Blood vessels that carry blood toward the heart

Blood Pressure

Measure of the force of blood against artery walls; includes systolic and diastolic pressure

Physical Activity

Any bodily movement produced by skeletal muscles that results in energy expenditure

Exercise

Planned or structured activity done to improve fitness or health

Immediate Energy System

Provides energy for the first 30 seconds using energy stored in muscles

Anaerobic

Means "without oxygen"

Anaerobic Energy System

Supplies energy after about 30 seconds by breaking down glucose

Aerobic

Means "with oxygen"

Aerobic Energy System

Needed after about 3 minutes; uses oxygen in cells to produce energy

Three Metabolic Systems

Immediate, Anaerobic, and Aerobic

FITT Principle

(frequency, intensity, type, time) a formula used to design a safe and effective exercise program

Frequency

How often you exercise (example: 5 times per week)

Intensity

How hard you exercise (example: moderate intensity)

Type

The activity or exercise you choose

Time

Length of exercise (typically 30-60 minutes)

Warm-Up

Activity performed before exercise to prepare the body

Cool Down

Activity performed after exercise to help the body recover

VO₂ Max

Measure of how well the body delivers and uses oxygen

Best Indicator of Cardiovascular Endurance

VO₂ Max

Average Workout Intensity

Most people work out at about 50% of their VO₂ Max