100 Pushup Challenge, 10-20-30-40 Reps + Plank

Great finisher to a workout. The challenge:10 Pushups + 10 Second Plank Hold20 Pushups + 20 Second Plank Hold30 Pushups + 30 Second Plank Hold40 Pushups +

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100 Pushup Challenge, 10-20-30-40 Reps + Plank

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