가입 후 초대 링크를 공유하면 동영상 재생 및 초대 보상을 받을 수 있습니다.

Steve Magness
@stevemagness
Author of Do Hard Things & Win the Inside Game: Performance Coach: Mental & Physical Performance
가입 December 2009
977 팔로잉 중    132.7K 팬
What's the best predictor of world-class performance in runners? Volume of Training. You've got to spend a lot of time doing the thing if you want to get good at just about anything.
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