Describe a movement or an exercise that involves isotonic contractions

Describe a movement or an exercise that involves isotonic contractions. (Do not use the biceps curl or the knee extension examples). After describing the movement or exercise, identify a muscle used in the movement and describe which phase of the movement the muscle is concentrically contracting and eccentrically contracting. (Use complete sentences). (3) 2. Stand up and place both hands against the wall. Lean into the wall with your arms straight, letting your arms support your body weight. Describe why this is an isometric contraction instead of an isotonic contraction. (Use complete sentences). (3)