MUSCLES ENGAGED Shoulders The shoulder is the most movable joint in the body. However, it is an unstable joint because of the range of motion allowed. This instability increases the likelihood of joint injury, often leading to a degenerative process in which tissues break down and no longer function well. Glutes Gluteal Muscles (Glutes) are one of the strongest muscles in the body and are the connecting point between your legs and back muscles. Glutes are used in a variety of actions from moving the leg to extending and rotating the hip, as well as extending and rotating the trunk of the body. Equipment Used Skipping Rope Skipping rope is a low impact, aerobic exercise. In contrast to running, jumping rope is unlikely to lead to knee damage since the impact of each jump or step is absorbed by the balls of both feet rather than the heels which greatly decreases the ground reaction forces through the patella-femoral joint. Exercise Instructions Step 1 Pick a rope that is the correct length. Step on the rope and the handles should reach your armpits. Step 2 Pick a tempo that you can maintain. Step 3 Only jump as high as you have to.