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The hamstrings are the most frequently strained muscles in the body (Anderson and Parr, 2009, p.547).  The hamstrings are strained when rapid or ballistic contractions overload the muscle and a tear occurs within the hamstring muscles, the muscle fascia, or tendons....

The knee takes a lot stress from the body due to running, squatting, lunging, and jumping.  While running and walking a person’s knee can bear loads of three to four times their bodyweight (Anderson and Parr, 2009, p.574).  The knee is also subject to a lot of torque f...

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