Jumping Jacks - Aerobic exercise

The exercise “jumping jack“, also known as “star jump“, is famous for its use in USA military training as it improves physical and aerobic stamina by working in a confined space. It is ideal for use in interval-training sessions in order to increase heart rate or to warm up before aerobic training. Improve your body! Join Passion4profession! Subscribe P4P - Facebook - Twitter - https://twitter.