AB CRUNCH exercise....AVOID!!!
Feb 5, 2014 ·
28m 12s
today we revert back into fitness training and why you should NEVER perform abdominal crunch exercise. Protect yourselves and understand this dangerous exercise and its implications towards spinal injuries
Comments
ii Crew England Speaks Out
10 years ago
see the photo ....this was the one that was wrong....the 90/90 angle is potentially dangerous for the lower back as it flattens and thus flexes albeit minutely the lower back out of neutral position
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