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30 Cards in this Set
- Front
- Back
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Epimysium
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deep fascia, continuous with tendons at ends of muscles
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periosteum
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specialized connective tissue covering all bones, attachment of tendon
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fasciculi
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group of up to 150 muscle fibers
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perimysium
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connective tissue surrounding fasciculi
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endomysium
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tissue surrounding each muscle fiber
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sarcolemma
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muscle fiber membrane
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sarcoplasm
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cytoplasm of muscle, contains contractile components, which consists of protein filaments, other proteins, stored glycogen and fat, enzymes, sarcoplasmic reticulum, specialized organelles such as mitochondria
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a-band
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alignment of myosin filaments, does not shorten during contraction
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I - band
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area in 2 adjacent sarcomeres containing only actin, space between myosin, shortens during contraction
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z-line
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middle of I-band, connection of actin, link of sarcomeres, distance between 2 shortens during contraction
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h-zone
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area of only myosin, gap between actin, shortens during muscle contraction
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sarcoplasmic reticulum
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intricate system of tubules at end of each myofibril, stores calcium ions
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sliding filament theory
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actin are pulled in by cross-bridge flexion, pulling z-lines toward each other shortening muscle
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troponin
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protein that is stimulated at regular intervals along actin filaments and has high affinity for calcium
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left side heart
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left atrium through mitral valve to left ventricle, aortic valve, aorta to rest of body
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Right side heart
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Right atrium through tricuspid valve to right ventricle pulmonary valve pulmonary artery to lungs
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electric message through heart
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SA node, internodal pathways, AV node, AV bundle, left and right bundles, purkinje fibers conduct impulse to all parts of ventricle
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bradycardia, tachycardia
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under 60 beats resting heart rate, over 100 beats resting heart rate
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electrocardiogram (ecg)
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P - wave depolarization of atria, QRS complex depolarization of ventricles and repolarization of atria, T wave repolarization of ventricles, depolarization leads to contraction
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tranverse plane, sagittal plane, frontal plane
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Upper and lower, right and left, front and back
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construct validity
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ability of test to represent the underlying construct, overall validity, extent to which the test actually measures what it was designed to measure
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face validity
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appearance to athlete and other casual observers that the test measures what it is purported to measure
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content validity
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assessment by experts that the testing covers all relevant subtopics or component abilities in appropriate proportions
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criterion - referenced validity
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extent to which test scores are associated with some other measure of same ability, types: concurrent, predictive, discriminant
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concurrent validity
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extent to which test scores are associated with those of other accepted tests that measure same ability
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convergent validity
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evidenced by high positive correlation between results of test being assessed and those of the recognized measure of construct (gold standard)
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predictive validity
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extent to which the test score corresponds with future behavior or performance
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discriminant validity
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ability of test to distinguish between two different constructs and is evidenced by a low correlation between results of the test and those of tests of a different construct
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test-retest reliability
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statistical correlation of the scores from the two administrations. errors occur from: intrasubject variability, lack of interrater reliability/agreement, intrarater reliability, failure of test itself to provide consistent results
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sequence of tests
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non-fatiguing, agility, maximum power and strength, sprint tests, local muscular endurance, fatiguing anaerobic tests, aerobic capacity tests
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