2016年1月18日月曜日

More Weight or More Reps: Which Should I Focus On First?

A proper form is the start.

http://vitals.lifehacker.com/more-weight-or-more-reps-which-should-i-focus-on-first-1752080884?utm_campaign=socialflow_lifehacker_twitter&utm_source=lifehacker_twitter&utm_medium=socialflow


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