четверг, 1 июня 2017 г.

Have you heard of daily undulating periodization (DUP) training? Give it a try -- youll love the results.





Have you heard of daily undulating periodization (DUP) training? Give it a try -- youll love the results.


Original article and pictures take http://ca.askmen.com/sports/bodybuilding/daily-undulating-periodization-dup-training.html site



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