From the CrossFit Journal article, "Popular Biomechanics" by Mark Rippetoe, first published in Journal Issue 55, March 2007.
"..It is possible to identify certain aspects of any correct squat, regardless of bar position.
At the top of the squat:
• All the skeletal components that support the bar—the knees, hips, and spine—will be locked in extension so that the muscular components have to exert only enough force to maintain this resting position
• The bar will be directly over the mid-foot
At the bottom of the squat:
• The spine will be held rigid in lumbar and thoracic extension
• The bar will be directly vertical to the middle of the foot
• The feet will be flat on the ground
• The acetabulum, or hip joint, will be lower than the top of the patella"
With subscription to the CrossFit Journal, entire article is available here:
WOD
LEARN THE BACKSQUAT
AM RESULTS
ReplyDeleteGREG 183
ELIA 95
SANDRA 93
VERONICA 88
MARYANN 70
PM RESULTS
ReplyDeleteJACQUE 118
JENNY 133
CHARLES 145
BRET 145
CHRISTY 148
DAVE 215