... key is to keep the right wrist straight.( 3 )Wrist relaxation or nervous, will affect wrist movements; Wrist movements premature, overweight, placement ... achieved. Darts movement in the main contract muscle and joint wrist and elbow, shoulders, deltoid muscle, triceps muscle, wrists, ... sunny day! A classic outdoor physical activity, energetic kids love skipping rope! Each nylon rope has plastic handles ...