If a disorder makes it impossible for ATP to bind to the myosin head what symptom would a person most likely display?

If a disorder prevents ATP from binding to the myosin head, a person would likely experience muscle weakness and fatigue. This is because ATP is essential for muscle contraction and relaxation; without it, myosin cannot detach from actin after a contraction, leading to sustained muscle tension and inability to properly relax the muscles. Consequently, the person may also have difficulty performing physical activities and could experience muscle cramps.