Yes, it seems a bit strange doesn't it? Stick a needle here, here, here and here - and you will be able to run better??
Most of our ancient simian instincts would tell us, "HEEELLLLLLLLLLLL no!"
However, allow me to convince you to just consider an option - just yet, another option in your toolbox of treatment options for you to choose from if you happen have a couple of creaks, bumps, sprains or noisy joints that you'd like to investigate (hopefully with the help of your friendly neighbourhood acupunk!) in order to get you back on your feet and running (or swimming, cycling, gym-ing, monkey bar climbing, etc) again. I can testify that it works - not simply because I do the acupuncturing on people but really because, I too, have been a patient of acupuncture myself and I am thankful that I have this modality of treatment to fall back on if, (the gods forbid) I should sprain my ankle yet again!