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By Doug on September 23rd, 2009
Partner Training for Abs-Quick Circuit but deadly!
Circuit 1 : Partners will perform each exercise thoroughly and switch. Repeat both exercises 1-3 x. Perform the entire circuit before going on to circuit 2. NOTE: 3x = repeat both exercises 3 times.
Sit ups another version: Beginners 5-10 reps Advanced 15-25 reps Very Fit 25-50 rep
Place a 55 cm ball under your knees so your feet drape over [...]

