Understanding the functions of the inner thigh muscles.
The adductor muscles, also known as the inner thigh muscles, are divided into five distinct groups: the muscles of the thigh, the lower leg muscles, the lower thigh muscles, the foot muscles (peroneal muscles), and the heels. The thigh muscles, in particular, are further divided into a superficial group called the muscles of the thigh (or aponeuroses of the thigh) and a deep group called the hyponeuroses of the thigh. The muscles of the thigh are then further divided into the muscles of the anterior thigh and the muscles of the posterior thigh.
The position of the body can affect the actions of the thigh and leg muscles. In the standing or weight-bearing position, the muscles of the anterior thighs and adductors of both legs flex the hip and tilt it towards the center of the body. These muscles, known as the adductors of the thigh, serve to pull the thighs away from the pelvis at the lateral aspect of the pelvis, reducing the distance between the femur and tibia and forcing the femur into the acetabulum.
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In the sitting or non-weight bearing position, the muscles of the posterior thigh and the adductors of the thigh extend the hip or open the hip to straighten the thigh away from the hip flexors. The adductor magnus muscle is responsible for extending the hip of the opposite leg, while the adductor longus works with the adductor brevis to extend the hip. The adductor longus also works with the obliquus externus muscle to extend the hip at the pelvic side wall.
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In the kneeling or kneeling-bend position, the muscles of the posterior thigh and the hip muscles of the standing position act as knee extensors (flexors), while the adductors of the thigh extend the hip. The muscles of the foot, including the peroneal muscles, act to plantarflex the ankle and evert the foot (these are the most important muscles you use when you jump rope). The heels also play a role in this position, with the muscles acting to plantarflex the ankle and invert the foot. Overall, the adductor muscles are important for various movements of the hip, thigh, and leg, as well as maintaining balance and stability.