Shoulder Girdle
* Slight retraction of the trapezius middle and lower fibers.
Shoulder Joint
* Retraction and protraction of the shoulder joints.
Elbow Joint
* Flextion of the right and left elbows, by concentrically contracting the biceps brachii, brachialis, and brachio-radialis.
Hip Joint
* Right hip joint flexion by concentrically contracting the iliacus, psoas, rectus femoris, sartorius, pectineus, gluteus minimus, and the tensor fasciae muscles.
Knee Joint
* Right knee joint flexion by concentrically contracting the biceps femoris, popliteus, semimembranosus, and semitendinosus muscles.
* Left knee join extension by ecentrically contracting the rectus femoris, vastus intermedius, vastus lateralis and vastus medalis muscles.
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