Mark Santa Maria demonstrates the 180 Degree Squat (Credit: Dave Sanders)

Mark Santa Maria demonstrates the 180 Degree Squat Jump at Crunch Gym.

Personal Trainer: Snowboarding

Mark Santa Maria demonstrates the 180 Degree Squat
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the 180 Degree Squat Jump at Crunch Gym.

Mark Santa Maria demonstrates the 180 Degree Squat
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the 180 Degree Squat Jump at Crunch Gym.

Mark Santa Maria demonstrates the Diagonal Power Slide
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Diagonal Power Slide at Crunch Gym .

Mark Santa Maria demonstrates the 180 Degree Squat
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the 180 Degree Squat Jump at Crunch Gym.

Mark Santa Maria demonstrates the Diagonal Power Slide
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Diagonal Power Slide at Crunch Gym.

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Mark Santa Maria demonstrates the Diagonal Power Slide
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Diagonal Power Slide at Crunch Gym.

Mark Santa Maria demonstrates the Long Squat Side
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Long Squat Side Touch at Crunch Gym.

Mark Santa Maria demonstrates the Long Squat Side
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Long Squat Side Touch at Crunch Gym.

Mark Santa Maria demonstrates the Long Squat Side
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Long Squat Side Touch at Crunch Gym.

Mark Santa Maria demonstrates the Long Squat Side
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Long Squat Side Touch at Crunch Gym.

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Mark Santa Maria demonstrates the Core Hold Up
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Core Hold Up at Crunch Gym.

Mark Santa Maria demonstrates the Core Hold Up
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Core Hold Up at Crunch Gym.

Mark Santa Maria demonstrates the Core Hold Up
(Credit: Dave Sanders)

Mark Santa Maria demonstrates the Core Hold Up at Crunch Gym.