Question: A common gym exercise is standing cable hip abduction, pictured below. Weights attached to the steel cable provide resistance as the subject abducts the

A common gym exercise is standing cable hip abduction, pictured below. Weights attached to the steel cable provide resistance as the subject abducts the leashed leg. Several muscles act together to abduct the hip in the frontal plane, but for this problem you may assume that the gluteus medius predominates. Estimate the tension in the gluteus medius and the contact force in the hip joint when the cable tension equals 10% of body weight, at the moment that the lifting leg is vertical (closer to the left image than the right). Reference the geometric information shown in the figure on the next page (which shows the lifting leg in the vertical position, as you should analyze it). Express your answers in terms of body weight W. Place your answers here: Tension in gluteus medius: Hip joint contact force:

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