To warm up your inner-thigh muscles, step your right leg out into a side lunge. Place your left hand on the ground in front of you. Twist at the waist and extend your right arm as far up as you can. Return to the starting position and repeat on the left side. Do 10 reps on each side.
Training tip: Intensify the stretch by turning your head to look up at your hand at the top of the move.