Groin strain
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Although this isn't a common injury for everyday athletes, the groin pull is a brutal one. Once someone gets groin strain, they can become chronic – an injury you never quite shake.

The Fix: Flexibility is key. Start with hip stretches and then work on strengthening your core, which can also decrease the risk of groin strain. Using an ab wheel or doing planks are recommended over classic sit-ups because those can put unnecessary stress on your back.