amenorrhea, osteoporosis, and eating disorders; when left untreated they damage the musculoskeletal and reproductive systems
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# of kilocalories in one gram
Carbo= 4; fats=9; protein=4; alcohol=7
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guidelines for losing weight
500-1000 cal daily to lose 1-2 lbs. per wk; same to increase
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kilocalaries
equivalent to losing 1 lb of fat 3500cal
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waist-hip ratio
Hips/Waist (ex. 45" waist and 36" hips... 36/45=.8) ratios above .86 for women and .95 for men indicate abdominal adiposity
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Arteriovenous Oxygen Difference
difference between oxygen content of arterial and venous blood
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Maximum Oxygen Consumption
highest rate and amount of oxygen achieved at maximal physical exertion
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Kinesiology
the study of human movement
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Bones
mineral reservior, internal skeleton (levers)
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joints
where two bones meet (fulcrum and axis)
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cartilage
white fibrous tissue that cushions surfaces and prevents friction (cushions bones)
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horizontal adduction
chest press
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lateral flexion
decrease in joint angle (spine side bend, love handles)
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Physical Activity
bodily (musculoskeletal movement leading to caloric expenditure
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Exercise
movement done for improvement in one or more components of fitness
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5 components of Physical Fitness
a group of characteristics a person achieves/possesses related to physical activity and cardiorepiratory, muscle endurance, muscle strength, flexibility, body composition
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cardiorespiratory
increases the capacity of the heart, lungs, and blood carrying vessels to deliver oxygen; also called aerobic fitness
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flexibility
refers to a joint's range of mobility (ROM)
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Body Composition
refers to th ratio of lean body mass compared to fat mass
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Principle of Adaptation/Overload Training and Progression
-greater then normal demand is placed upon muscles, -to enhance the muscular fitness, the system must be progressively overloaded -tension required for strength gain is about 60% - 80% of 1RM -fleck and kraemer recommend 75 - 90%
Progression involves increasing/changing one or more of the exercise training components to promote adaptations
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Cardio adaptations
-resting heart rate decreases by approx 10 - 15 bpm -SV increases both at rest and during exercise -Resting SBP/DBP may decrease (if prev elevated)
Should include appropriate cardiorespiratory and musculoskeletal activity
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Cool Down Considerations
Appropriate cardiorespiratory and musculoskeletal activity serving to enhance venous return and decrease the chance of postexercise hypotension during recovery
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Initial treatment for Musculoskeletal injury for the first 24-72 hrs
(RICES) rest (prevents further injury, ice (reduces pain, swelling, and initiates inflammatory response) compression (reduces swelling and bleeding) elevation (controls edema and decreases blood flow) stabilization (assists in muscle relaxation, diminishing spasm
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Symptoms of Angina (chest pain) and myocardial infaction (heart attack)
a. chest pain, b. pressure discomfort in the chest, c.left jaw, neck or shoulder-may radiate distally, d. shortness of breath and lightheadedness, e. back pain, which may be experienced by some women
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Treatment for chest pain and heart attack symptoms
a. stop exercise immediately and place person ina comfortable sitting or lying position, b. 911, monitor HR, and be prepared to begin CPR, c. Automated External Defibrillator AED may be used if cardiac arrest
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Signals of heat exhaustion
a. cool, moist pale, ashen, or flushed skin b. headache, nausea, dizziness, c. weakness, exhaustion d. heavy sweating e. body temp will be near normal
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Signals of heat stroke
1. red, hot dry skin 2. rapid weak pulse, shallow breathing 3. changes in the level of consciousness 4. vomiting 5. body temp will be very high as high as 105
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Hydration recommendations according to ACSM
approx. 3-6 ounces of water every 1-2 miles of the race
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ATP-PC phosphagen system (anaerobic)
25-30 seconds of high intesity work (spints, weight lifting)
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Anaerobic Glycolysis/Lactic Acid System (anaerobic)
1-2 min of high intensity work 400-800m distance sprint
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Oxygen System (aerobic)
fuels activities lasting more than 2-3 min. Capacity is limited only by oxygen and fuel avail. to the cell
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Ipsilateral
same Side
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Contralateral
opposite side
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unilateral
one side
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bilateral
both sides
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supine
lying face up
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prone
lying face down
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upper respiratory system
nose, sinuses, pharynx, larynx ...filters air
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lower respiratory system
trachea, bronchi, bronchiloes, alveoli...puts oxygen into blood
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anatomical sites of pulse
carotid, brachial, radial, femoral
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type 1 fibers
slow twitch, slow oxidative and red twitch fibers (aerobic)
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type IIA fibers
have aerobic and anaerobic capabilities and refered to as intermediate fibers, continuum fibers, fast oxidative glycolitic fibers
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type IIB
anaerobic in nature. refered as fast glycolitic fibers
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sliding filament theory
the events that occur b/w actin and myosin during muscle contraction and relaxation
-when nerve impulse is received, the cross bridges of myosin will put the actin filaments towards the center of the sarcomere and tension is created
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neuromuscular activation
stimulus for vol. physical activity initiates in the brain and is then transformed into a movement pattern
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antihypertensive meds
reduces high blood pressure
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anti-anginal
reduces angina/chest pain
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brochodilator
relaxes bronchial passageways
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hypoglycemic
reduces blood sugar
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anti-arrhythmic
prevents/controls abnormal heart rhythms
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psychotropic
affects behavior
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antihistamine
prevents system of allergic response
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vasodilator
widens blood vessal
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beta-blocker
reduces resting and exercise heart rate and blood pressure
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caffine
may extend endurance in moderate aerobic exercise
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alcohol
dehydrating-may impair exercise tolerance and increase risk of heart injury
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nicotine
may elevate HR,BP and respiratory response
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A.O.M.S
Acute-onset muscle soreness; muscle fatigue and discomfort dimininishes when exercise stops
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D.O.M.S
delayed onset muscle soreness;muscle discomfort 24-36 hr after exercise
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overuse/chronic muscle and joint injury
tendonitis, fasciitis, bursitis, osteoarthritis
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tendonitis
inflammation of a tendon
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fasciitis
inflammation of the fascia; fascia is a connective tissue that surrounds muscles, groups of muscles, blood vessels, and nerves, binding those structures together in much the same manner as plastic wrap can be used to hold the contents of sandwiches together
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bursitis
Bursitis is inflammation of the fluid-filled sac (bursa) that lies between a tendon and skin, or between a tendon and bone
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osteoarthritis
chronic breakdown of cartilage in the joints
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normal acute cardiorespiratory response to aerobic exercise