As people get older, they may experience moving around. Their muscles and joints just don’t work as well as they had been. There are specific muscles that seem to have the greatest trouble. Usually, if an elderly person has trouble moving, it would be while they are moving up or down the stairs. Stairs seem to be the biggest problem in terms of mobility.
The main muscle that causes this problem because this is the muscle that is used to move the person up and down stairs is called the inferior gluteal nerve. This nerve is located near the rear end. Its function is to cause the hip to make the thigh move. One injury could be the gluteus maximus lurch.
Inferior gluteal-the first thing that you want to do with this question is determine which muscle was impaired. since the question specifies that there is a weakness when climbing steps or jumping, you should know that there is a problem with powerfully extending the hip. and thats what gluteus maximus does. the nerve to gluteus maximus, the inferior gluteal nerve, must be the nerve that was injured. the tibial nerve innervates the hamstring compartment. although the hamstrings are involved in extending the hip, they are not the most important muscles for these powerful motions. gluteus maximus and the inferior gluteal nerve enable the type of powerful extension used to climb steps or jump
the superior gluteal nerve innervates gluteus minimus and medius. these muscles are important for stabilizing the pelvis on the supported side of the hip when the opposite leg is lifted. if the superior gluteal nerve is damaged on the supported side of the hip, the unsupported side of the hip will drop. this is called trendelenburg gait. the obturator nerve innervates the medial, adductor compartment of the hip. the femoral nerve innervates the anterior compartment of the hip, including the quadriceps. this nerve allows for extension at the knee.