The sit-through is a versatile circuit exercise which incorporates a number of elements including balance, rotation, mobility and strength. Begin the exercise on all fours with a flat spine, hands underneath shoulders, knees underneath hips and off the ground. Lift your left hand off the ground and rotate your right leg through and under your body. Finish up at 90 degrees to your starting position with your right leg fully extended out in front of your body whilst balancing on your right hand and left foot. Smoothly transition back to the start position before immediately switching and rotating to the other side. Repeat for the desired number of reps or time.