ENS 401A Lecture Notes - Lecture 5: Subtalar Joint, Thoracic Vertebrae, Gluteus Maximus Muscle
13 Mar 2017
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Document Summary
Initiate movement by first driving hips backwards (hinging) which: eccentrically loads gluteus maximus loading posterior chain = power, avoids early forward knee translation before ~15-30 degrees of hip. Isometric hamstrings contraction helps unload acl flexion creates more hinge movement vs. shear movement. Why: think com displacement, side-lunge don"t overstep, cueing sequence = toe-heel-hinge-shift, add 3d movement with drivers (volume, vary from double-leg start to , single leg to , jumping to , bounding to , hopping. Movement mechanics upper extremity: shoulder abduction, frontal plane action, application. Impingement of greater tuberosity (humerus) against acromium process (scapula) space is generally small (~5-10 mm) Infraspinatus + teres minor: er + compression / depression during arm elevation, subscapularis, internal rotation (ir) + compression / depression during arm elevation. Upper extremity movement patterns: overall goal and training sequence. Core preparation: sequential overview, core stabilization , positional isometrics, seated (static, static balance , positional isometrics, standing (static, dynamic balance.
