Fitness trainer Larysa DiDio shows you how to find the plank jack variation that works for you. These plank jack exercises work your. Plank · 2. And because the Swiss ball is unstable, your core has to work hard to maintain your body position. Swiss ball prone jack-knife. This exercise is kind of like Jumping Jacks but in a plank position. Adding a stability ball to any exercises will make it a lot more. · How to do it properly? Kneel on the floor with your elbows on a stability ball in front of you. Walk one foot back at a time to get in position and push your hips straight up and back, bringing your weight onto your toes and elbows. Hold this as long as you can. · A Plank Jack combines two exercises: the Plank and the Jumping Jack. The workout requires the plank position. Your feet hop in and out while you keep your spine flat. Plank Jacks occurred in as an alternative to the regular Plank. The Plank Jack is beneficial for full-body stability and endurance.
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