People say it's easier if you breathe through your nose, but I'm not intirely sure. I have to do X-country practice four times a week. I have learnt that running is not an easy skill to master. I do know from experience that taking big strides at full speed down-hill does effect your knees and be sure to warm up stretch and warm down or else you will feel the pain of ...
sore legs.(and the pain can last for a few weeks.)
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