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NAFC: Weight Training Manual Study Guide – Complete With Solutions
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NAFC: Weight Training Manual Study Guide – CompleteWith Solutions
Percentage of adults engaged in vigorous activity regularly Right Ans - 25%
Population of people who are sedentary Right Ans - 85%
How do you avoid injury Right Ans - Starting out slowly and gradually
building up to desired amount
Adults that don't achieve recommended amount of physical activity Right
Ans - 60%
Adults not active at all Right Ans - 25%
Benefits of working out for older adults Right Ans - Improve ability to live
independently and freely
Benefits of working out for parents Right Ans - Can help children maintain
physically active lifestyle by encouragement and physical activities.
Benefit of working out for teenagers Right Ans - Improve strength, build
lean muscle, decrease body fat
Benefit of working for dieters Right Ans - Burn calories, preserve lean
muscle mass
Benefit of working out for people with high blood pressure Right Ans -
Helps lower blood pressure
Benefit or working out for people with arthritis Right Ans - Help control
swelling and pain
Benefit of working out for people with disabilities Right Ans - Improve
stamina, muscle strength, and physical well being
How do you maintain muscle Right Ans - 30 minutes or more of moderate
intensity physical activity o all or most days
,Half of young people Right Ans - 12-21 are not vigorously active, physical
activity sharply declines during adolescence
Organ systems Right Ans - -Reproductive,
-integumentary,
-skeletal,
-muscular,
-urinary,
-nervous,
-respiratory,
-circulatory,
-endocrine,
-lymphatic,
-digestive
Integumentary System Right Ans - -Body's external covering,
-protects deeper tissue from injury,
-synthesizes vitamin D,
-holds sweat receptors/ oil glands/ skin/ hair/ nails,
-main function is protection
Skeletal system Right Ans - -Protects and supports body's organs,
-framework and leverage for muscular movement,
-made up of 206 bones
-made up of the axial skeleton and appendicular skeleton
-axial skeleton: covers bones head to toe
-appendicular skeleton: upper and lower extremeties
-ossification: process for development of bone
Muscular System Right Ans - -Pulling network needed for locomotion and
facial expressions
-maintains posture and produces heat
-600 muscles in body 50% of your total body weight
-muscles are contractile proteins (75% water/ 25% protein)
Fascicules Right Ans - -Bundle of muscle fibers grouped together
-single muscle fiber made up of myofibrils
, Myofibril Right Ans - -protein strand made up of contractile proteins
(sarcomeres)
Sarcomere Right Ans - -basic unit of myofibril containing myosin and actin
Myosin Right Ans - -thick, dark protein
Actin Right Ans - -thin, light protein
Cross bridges Right Ans - -projections extending from myosin to actin
Sliding filament theory Right Ans - -nerve impulses cause cross bridge to
pull myosin and couple it with actin causing shortening/ contraction
Nervous system Right Ans - -Master controller
-communication system, consisting of brain/ sensory receptors/ and spinal
cord
-monitors change inside and outside of the body
-responds to internal/ and external changes the body may experience
(stimuli)
Central nervous system Right Ans - -brain/ spinal cord
Peripheral nervous system Right Ans - -consist of nerves that extend from
brain/ spinal cord to arms and legs
Motor cortex Right Ans - -Sends movement commands to lower brain
centers and spinal cord (sends movement commands to muscles)
Pathway Right Ans - -created through practice between brain and muscles
eventually becomes permanent
Cardiovascular system Right Ans - -Comprised of heart which pumps
oxygen rich blood to arteries
-every cell depends on oxygen the cardiovascular system provides
-iv->sv->la->lv->pv->lpa/rpa->ra->rv->aorta
-hearts electrical conduction system is located in heart
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