You will need a dumbbell or a medicine ball to do this exercise.

Step 1: Stand in an athletic position with your arms straight and hanging down in front of you, holding your medicine ball or dumbbell.

Step 2: While you lunge forward with one leg, rotate your upper body to that same side, holding the medicine ball or dumbbell straight out at chest height the whole time.

Step 3: Return to your original starting position and do the opposite leg.

Step 4: Try to repeat each side 10 times and do 3 sets.
Try to keep this exercise in your daily routine and you will see immediate results