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 ...
If you're like most guys in the gym, when you’re doing a big lift—whether it’s a max bench, a PR squat, or the last rep of a strip set of curls—you’re focused on one thing: Getting that weight up. The ...
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you tend to breeze through the "easy" part of an exercise—like lowering into a squat or letting your ...