The upper body contains dozens—yes, dozens!—of muscles. But when we talk about upper body workouts, we’re usually talking about major muscle groups like the anterior deltoid (the front of the shoulder), the posterior deltoid (the back of the shoulder), the major and minor pectoral muscles, the biceps, the triceps, the lats and the rhomboids, says Denise Chakoian, a certified personal trainer and the founder of CORE fitness studio in Providence, Rhode Island. “Around these big muscles, we have small accessory muscles that work in tandem with the big ones.”
Read MoreTrainers say the moves are legit.
Read More“This is not a beginner workout ― in fact, it is not an intermediate workout,” said Denise Chakoian, a certified personal trainer and founder of CORE Cycle.Fitness.Lagree. “Someone needs a good baseline to avoid injury and overdoing a particular exercise or exercises in an ‘all out’ method.”
Read MorePut differently, the bands can help you engage your “center,” adds Denise Chakoian, C.P.T., owner and founder of CORE Cycle.Fitness.Lagree, which inherently straightens the spine and corrects poor posture. When you use resistance bands correctly, you have no choice but to sit up straight.
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