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ACE PT EXAM (3rd ed)

Chapter 3: Biomechanics and Applied Kinesiology

Abduction? middle deltoid functions as the prime mover for shouluder
adductor function? stabilize the thighduring lunges
adductor muscles? pectineus, adductor magnus, adductor minimus, adductor longus, adductor brevis, gracilis
agonist primer mover - muscles that causes motion
antagonist muscles with the potential to oppose the action off the agonist
anterior hip muscles iliopsoas, rectus femoris, sartorius, tensar fascia latae, pecineus
anterior muscles acting at the ankle? dorsiflexors: anterior tibialis, extensor digitorium longus, extensor hallucis longus
anterior pelvic tilt contraction of the iliopsoas/lower back muscle
anterior shoulder girdle muscles perctoralosis major, serratus anterior
aponeurosis: insertion point of the external obliques: forms outer layer of connective tissue sheath that covers the rectus abdominis
what is the best way to avoid knee injury during squats? limit degree of flexion to 90 degrees
what is the body's center of gravity? point at which mass in concentrated and its balanced in all planes
Cause of wieght training overuse & stress injuries? reliance on momentum to lift weights with muscles lacking the strenth to stop the momentum
cause of muscular imbalance? moving, standing, sitting, workng habits
classes of levers? 1.long level arm: whellbarrow; motive force far from axis can lift large object with small force 2. lever arm" equal distance motive and resistive force 3. the body short lever arm _ must use lots of force to lift small reistance
co-contraction: when agonist and antagonist contract together & a joint must be stabilized
concentric- muscles shortens and overcomes resistance ( ex. Biceps curl UP)
eccentric - muscle action that involves lengthening as tension is created. muscle lengthens and produces forces or returns to is resting lenth from shortened position (ex biceps curl down);External force -Gravity
exercise analysis 1. Id joint movement 2. movement speed and resistance 3 Gravity? 4. ID muscles causing Joint movement 5. contraction type. 6. movers and stabilizers 7. movement achieve goal of exercise? 8? does exercise train primary function of the muscle
exercise analysis(2) 9. does movement compromise safety of the other body parts? are non moving joints stabilzed/ neutral ? 10/ how can the exercise be adapted to meet client needs (more or less difficult)
External Hip Rotator Muscles? beneath the gluteus maximus - top to bottom: Piriformis, gemelli superior; qburator internus, gemelli inferior, obturator externus, quadratus femors
external hip rotators function? rotate hip externally keep femoral head in socket stabilize and alighn the hip
External Obliques? the most superficial sbdominal muscles.
Created by: kyfleming2