CrossFit Journal Preview (). Get ready for a quad burner as Julie Barnes Maurer teaches you how to work your way to an parallette L-sit good enough for your gymnast friends. First, she begins with having athletes sit on the floor and squeeze their quads “so tight that maybe your heels come off the floor.“ Next is the tuck-hold position. While on the parallettes, the quads are parallel to the floor, the shins are perpendicular, and the toes are pointed down.
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