Stretching can help improve flexibility. And better flexibility may improve your performance in physical activities or decrease your risk of injuries by helping your joints move through their full range of motion. For instance, say your Achilles tendon is tight and lacks flexibility. If you do a lot of hill walking, your foot may not move through its full range of motion. Over time, this can increase your risk of tendinitis or tendinopathy in your Achilles tendon. Stretching your Achilles tendon, though, may improve the range of motion in your ankle. This, in turn, can decrease the risk of microtrauma to your tendon that can lead to overload and injury.
Stretching also increases blood flow to the muscle. And you may come to enjoy the ritual of stretching before — or better yet, after — hitting the trail, ballet floor or soccer field.