This interactive model illustrates the muscle groups involved in jumping and landing, controlling the weighted rope, and stabilizing the trunk and pelvis.
Colors indicate functional roles selected for this presentation. They do not represent measured levels of muscle activation.
1. Feet and ankles
The calf muscles help control ankle movement during repeated takeoff and landing. Foot muscles help control contact and balance. The Achilles tendon transmits force between the calf muscles and heel.
2. Knees and hips
The quadriceps, hamstrings and gluteal muscles contribute to support and control during jumping. Their involvement varies with technique and the amount of knee and hip movement.
3. Trunk
The abdominal and back muscles help stabilize the torso and pelvis while the arms turn the rope and the legs jump.
4. Shoulders
The shoulder and shoulder-blade muscles help position and control the arms. The rotator cuff helps stabilize the shoulder joint.
5. Elbows and forearms
Muscles controlling the elbows and forearms help maintain arm position and guide the handles through repeated rope turns.
6. Wrists and hands
The forearm and hand muscles maintain grip and control the handles. The demands vary with rope weight, handle mechanics and technique.
The highlighted structures show their roles in the movement. They do not represent measured activation levels or the amount of strength gained.