17 Quiet, At-Home Cardio Exercises That Trainers Recommend
Break a Sweat With 17 Quiet, Bodyweight Cardio Moves That Won't Annoy Your Neighbours
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The plank jack is "great for focusing on total body strength," said WITS-certified personal trainer and CrossFit Level One coach Ashley Rademacher, "but it's primarily focussed on engageing the shoulder, core and glutes." The jumping motion will get your heart rate up as well. "The faster you move, the more challenging it is!"