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#P90X: 6 Total-Body-Toning Moves #Sneaky Lunge #Works shoulders, abs, butt, thighs, hamstrings, calves..... Stand on balls of feet with legs together. Stay on tiptoes as you lunge forward with left leg, reaching arms up until body forms a straight line (as shown). Step back to start. Repeat on opposite side for 1 rep. Do 20 reps.
The plank is one of the best multitasking moves to work your abs, your arms, and your back all at once. If you vary the basic plank, then you'll have a whole slew of different exercises to target every inch of your body. Here are eight variations to bring about a stronger, more toned you.