A quiz just about straining my knees when i run.?

when i run sometimes my knees just strart hurting immoral bad i guess its from not streching enough but later it hurts for like 5 hours and i can narrowly walk plz assistance me out.

Answers:    You need to stretch and reheat up before running. Make sure you stretch the hamstring as this can lead to aching knees. Good Luck

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