KNH 188 Exam 2 Practice Questions & Answers, Physical Activity and Health, Rated 100%

KNH 188 Exam 2 Practice Questions & Answers, Physical Activity and Health, Rated 100%
WHO defines physical activity as –ans- "any bodily movement produced by
skeletal muscles that requires energy expenditure."
Exercise is a subset of physical activity - ans- Exercise = A type of physical
activity consisting of planned, structured, and repetitive bodily movement done to
improve or maintain one or more components of physical fitness
All exercise is physical activity - ans- but not all physical activity is exercise
METs - ans- are a useful convenient and standardized way to describe the absolute
intensity of a variety of physical activities.
A MET is a multiple of your estimated resting energy expenditure - ans- "Energy
expenditure refers to the amount of energy an individual uses to maintain essential
body functions (respiration, circulation, digestion) and as a result of physical
activity." -Heaney
1 MET = 3.5 ml O2/kg/min (the amount of oxygen consumed while sitting at rest)
- ans- Light intensity PA = 2.0-2.9 METs
Moderate PA = 3.0-5.9 METs
Vigorous PA ≧ 6.0 METs
What is Physical Fitness? - ans- is the ability to carry out daily tasks with vigor
and alertness, without undue fatigue, and with ample energy to enjoy leisure-time
pursuits and meet unforeseen emergencies. (ACSM) A set of physical attributes
that allows the body to respond or adapt to the demands and stress of physical
effort. A measure of how capable a person is to perform. These attributes can occur
naturally in a person, or be achieved through training. There are health-related
attributes and skill-related attributes.
How does physical activity differ from physical fitness? - ans- Physical Activity =
Behavior;
Physical Fitness = capacity Physical fitness is accomplished by performing
physical activity
Cardiorespiratory Endurance - ans- The ability to perform prolonged, largemuscle, dynamic exercise at moderate to high levels of intensity (due to the ability
of the circulatory and respiratory system to supply oxygen during sustained
physical activity).
Muscular strength - ans- The ability of the muscle to produce force.
Muscular Endurance - ans- The ability of muscle to continue to perform without
fatigue.
Flexibility - ans- The range of motion (ROM) available at a joint.
Body Composition - ans- The relative amounts of muscle, fat, bone, and other
vital parts of the body.

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