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WebSep 2, 2024 · This muscle group is responsible for lifting the legs towards the midsection of the body. Or, more simply, they're the instigator for walking, running, climbing and other similar motions. 4. Posterior (Back) Leg Muscles Hamstrings: these muscles are responsible for flexion at the knee joint and extension at the hip joint. WebFeb 1, 2024 · Lifting should be done at a seven-second tempo. That means three seconds to lift the weight, a one-second pause, and three seconds to lower it. You also want to use … WebJan 8, 2024 · The body repairs damaged fibers by fusing them, which increases the mass and size of the muscles. Certain hormones, including testosterone, human growth hormone, and insulin growth factor, also... cynthia rogers sisters salon and day spa