The standing crossover crunch is a great way to work the obliques from a standing position. The idea is to generate the movement from the torso, rather than swinging from the elbow and knee. Keep the move slow and controlled to focus attention on the core, or speed it up to make it more of a cardio exercise.
- Begin with the feet hip-width apart, hands behind the head with the elbows bent and out to the sides.
- Bring the right knee up and across the body as you rotate through the torso, bringing the left shoulder towards the right hip.
- Squeeze through the obliques and keep the move slow and controlled.
- Return to start and repeat for 1-3 sets of 8-16 reps on each side.
- Avoid swinging the elbow to the knee but, instead, focus on the rotation of the torso and the movement of the shoulder to the hip.