Principles of Physical Fitness. Chapter 2. Physical Activity and Exercise for Health and Fitness. Physical activity levels have declined The Centers of Disease Control and Prevention (CDC) reported the following: 62% participate in some leisure activity 38% are physically inactive
~ ”Is a subset of physical activity and is defined as planned, structured, and repetitive bodily movements done to improve or maintain one or more components of physical fitness.”
~ This includes walking, jogging, swimming, cycling, jumping rope, stair climbing, to name a few.
FITNESS VS HEALTH BENEFITS
~ In order to become physically fit it is best to train every day. (ACSM)
~ However, smaller amounts (less frequent) can provide HEALTH benefits.
~ If you increase your level of fitness, the greater the health benefits!
Cardio-respiratory Endurance refers to the ability of the body to take in, deliver, and extract oxygen for physical work or to perform prolonged, large muscle dynamic exercise at moderate-to-high levels of intensity.
Muscular Strength is the maximum force that a muscle can exert in a single contraction or with a single maximum effort.
Muscular Endurance is the capacity to exert repetitive muscular force or the ability of the muscle to remain contracted or contract repeatedly for long periods of time.
Flexibility refers to the range of motion in a specific joint or group of joints. Flexibility is related to muscle length.
Body Composition is the proportion of lean mass (muscle, bone, and water) and fat tissue in the body.HEALTH-RELATEDCOMPONENTS OF FITNESS
Principle of Reversibility (Disuse)-When physical training is stopped or reduced, the body will adjust to the new and diminished level. When a person stops exercising, up to 50% of fitness improvements are lost within 2 months.