BodyRock: Get in the best shape of your life at home for free
Complete each exercise once with 8 repetitions each. 8 Jumping Jacks 8 Bicycle Crunches 8 Mountain Climbers 8 Squats 8 Push Ups 8 Lunges 8 Burpees 8 Tricep Dips Demos: Burpees: Begin in a standing position. Your feet should be shoulder-width apart.
How to perform bicycle crunch in 3 easy steps. An ACE sponsored study done at the Biomechanics Lab at Sand Diego State University came up with a list of the best and worst ab exercises ranked by muscle stimulation level.