If you see a muffin top that isn't on your breakfast plate, it might be time to whittle your middle. The added benefit? Defining your waist not only sculpts your abs but also tones your butt, legs, and arms.
You'll ratchet up the fat burn without aggravating any back pain or tight hip flexors. Try standing core exercises like lunges with a knee raise. Or seated oblique pulls. Sit on the floor, heels on the ground, knees slightly bent.
Hold a towel taut at both ends overhead. Lean back, keeping your back flat. Maintaining a tight core, slowly pull the left end of the towel toward the floor while extending your left leg. Pause, return to start. Repeat on the other side. Do ten on each side.