There are two main phases of lifting weights: eccentric and concentric. The eccentric phase is where you lengthen the muscle, and the concentric phase is when you contract or shorten the muscle.
Discover 8 effective no-equipment exercises that build muscle and strength as efficiently as weight training. Perfect for home workouts with proven progressions.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback