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Old 02-12-2013, 01:11 AM   #1906
dabears
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Join Date: Jan 2008
Location: Edmonton/Vernon
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that could also be from the disadvantage of high reps / low weight... the stabilizing muscles fatigue before the main ones (in this case lower back / core before quads)

or could be a warmup thing too, or finishing sets sloppy on last couple reps?
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