Phoenix II

This foodspring video shows you how to do high knees correctly. High knees are plyometric full-body exercises. They work not only your circulatory system, but also your muscles and your endurance. Stand up straight and start running in place. Keep your hands in front of you at hip height and try to touch your hands with your knees.

This foodspring video shows you how to do a plank correctly. Start on your stomach. Put your hands close to your upper body, right under your shoulders. Point your fingertips forward. Now push yourself up from the floor so your body is in a push-up position. Your neck is straight, as if it's an extension of your spine. Your shoulders, core and glutes should all form a straight line. Keep your eyes relaxed and looking at the space between your hands. It's important to keep your glutes tight, pull your belly button in towards your back, and push your heels away from yourself.

This foodspring video shows you how to do jumping jacks correctly. Jumping jacks are exercises that work your full body - and not only your circulatory system, but also your muscles and your endurance. Stand upright with your arms at your sides, hands touching your thighs. Now bring your arms to the side and up over your head until your fingertips touch, while jumping in the air to land with your feet spread apart. Then jump your feet back together while bringing your arms back down to your sides.

This foodspring video shows you how to do crunches correctly. This exercise targets the vertical abs. Crunches are a great exercise for beginners. Make sure that only your shoulder blades are coming up off the floor. Your lower back should stay on the floor. Your neck should stay in a neutral position.