Body Beast - Tempo: Back & Bis (2012)
장르 :
상영시간 : 49분
시놉시스
Tempo Back/Bis: Takes the same time-under-tension approach as the Tempo Chest and Tris workout. Only this time, you'll be focusing on every fiber of your back and bis. The longer they spend contracting, the stronger and more ripped you'll get.
