What Are Eccentric and Concentric Contractions? Eccentric contractions occur when a muscle lengthens under load, such as lowering a dumbbell during a biceps curl. Concentric contractions happen when ...

Good news for those who struggle to fit a gym workout into their day: you may be able to cut your weights routine in half and still see the same results. New research from Edith Cowan University (ECU) ...

Banging out reps is pretty straightforward, generally speaking. Lift the weight, lower the weight, repeat. But if you break down the anatomy of a repetition, there’s more going on than meets the eye.

Add Yahoo as a preferred source to see more of our stories on Google. There are actually three phases of each rep: the concentric (the “up” portion), the eccentric (the “lowering” portion), and the ...