J. J. Body Works

Learn tips on a great core body cross fitness exercise called sit ups in this free Fitness video on cross training core body exercises.

Expert: Garrett Smith
Bio: Garrett Smith NMD CBP CSCS BS, has been interested in exploring, learning, and implementing fitness and nutrition (the proper combination of which he believes is the foundation to all Health and welln
Filmmaker: Louis Nathan

Duration : 0:2:43

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