Force Fit XL • Peak of contraction in the middle of the course. • Peak of contraction at the point of maximum contraction. Therefore, w Force Fit XL h free weights, we can get these 3 zones of peak contraction and stimulate the biceps in their entirety. Exercise 1: Curl w Force Fit XL h bar of foot BICEPS curl The red line indicates the direction of the load, and the green bar, the arm of the external moment. In this exercise we would see how the most difficult point of the lifting for the biceps would be the middle area of ​​the lift. Therefore, this exercise would be an interesting exercise to look for a contraction peak in the middle of the course.

http://newsupplements2017.com/force-fit-xl/