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Level 1: Standard push-up, medium to wide hand position
Level 2: Using the same hand width, descend in a five-second count—this slow descent is called eccentric loading—and explode up, back to starting position.
Level 3: Descend as in a standard push-up, then explode up so your hands leave the ground.
Routine: Keep your body on a flat plane and your core tight. Descend until your nose touches the ground, then return to the starting position and repeat.
Reps: 15 per set