Hamstring injuries classically are most common in preason and early season when players are ramping up from lesser activity. But we're seeing more and more of these injuries occuring later in the season. Athletes are constantly striving for that edge to be the fastest, strongest player on the field. The stronger they are, the faster, quicker and more powerful they are. However, if muscle strength balance is lost and mobility takes a back seat, they put themselves at a greater risk. As the season goes on, fatigue tends to set in sooner..............which increases all injuries, but especially hamstrings.
Another thing I've seen that contributes to the increase of hamstring injuries as the season matures is that hamstring soreness is ignored with the player not heeding the need for rest and rehab despite the fact that a formal tear has not yet occurred. When an athlete tries to play through a "sore" hamstring, he is already experiencing micro tears and the muscle fibers are already compromised and can fully tear if there is enough stress. That's why it is imperative to recognize and respect the need for rest and rehabilitate before a cautionary prudent missed 1 week turns into a month or more missed games. Unfortunately, there is a resistance by players, teams and medical staff to lose that 1 week as a precautionary move that they feel is not necessary.