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Likely causes:
It's actually not your knee's fault at all. Blame your feet and thighs; for one reason or another they aren't doing their jobs properly. Your knee moves up and down in a narrow little groove in your thigh bone. It's a nifty design: when your legs and feet are working efficiently, your knee moves smoothly and comfortably with every step. But trouble appears when your kneecap moves out of its track, or rubs up against its sides. That trouble becomes pain when you factor in nearly 1000 steps per cartilage-grinding mile. Over time the cushioning cartilage around the knee becomes worn. That smarts. And that's runner's knee.
How did your knee get off track? Probably because of relatively weak thigh muscles and a lack of foot support. It's your thigh muscles that hold your kneecap in place, preventing it from trying to jump its track. Running tends to develop the back thigh muscles (hamstrings) more than those in the front (the quadriceps), and the imbalance is sometimes enough to allow the kneecap to pull and twist to the side.
Your foot, meanwhile, may not be giving you the stability you need. It's likely that your feet are making a wrong movement every time they hit the ground, and you're feeling the constant pounding and repetition of this mistake in your knee. Maybe you're overpronating (rolling your foot in) or supinating (turning it out too much) when you run.更多精彩文章及讨论，请光临枫下论坛 rolia.net
Likely causes:
It's actually not your knee's fault at all. Blame your feet and thighs; for one reason or another they aren't doing their jobs properly. Your knee moves up and down in a narrow little groove in your thigh bone. It's a nifty design: when your legs and feet are working efficiently, your knee moves smoothly and comfortably with every step. But trouble appears when your kneecap moves out of its track, or rubs up against its sides. That trouble becomes pain when you factor in nearly 1000 steps per cartilage-grinding mile. Over time the cushioning cartilage around the knee becomes worn. That smarts. And that's runner's knee.
How did your knee get off track? Probably because of relatively weak thigh muscles and a lack of foot support. It's your thigh muscles that hold your kneecap in place, preventing it from trying to jump its track. Running tends to develop the back thigh muscles (hamstrings) more than those in the front (the quadriceps), and the imbalance is sometimes enough to allow the kneecap to pull and twist to the side.
Your foot, meanwhile, may not be giving you the stability you need. It's likely that your feet are making a wrong movement every time they hit the ground, and you're feeling the constant pounding and repetition of this mistake in your knee. Maybe you're overpronating (rolling your foot in) or supinating (turning it out too much) when you run.更多精彩文章及讨论，请光临枫下论坛 rolia.net