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Your forearms are probably on fire by now, but dig in. Hold the dumbbells by your sides as you lunge forwards, driving through your heel with each step and keeping your back upright. Complete all 12 reps on both sides.
Your forearms are probably on fire by now, but dig in. Hold the dumbbells by your sides as you lunge forwards, driving through your heel with each step and keeping your back upright. Complete all 12 reps on both sides.