There’s a reason lunges are at the top of many trainers’ lists of favorite exercises. “Lunges are a functional exercise with a shifting base of support that improves core stability, balance, and leg ...

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Medically reviewed by Theresa Marko, PT Your shoulders are composed of three primary muscle groups: the anterior, lateral, and posterior deltoids. The rear delts are a key muscle group responsible for ...

Flyes are exercises to strengthen the muscles of your upper body. The hand and arm move through an arc against resistance with the elbow at a fixed angle. Flyes are strength training exercises, and ...