How to do it
Swing your arms in opposition to your legs.
- 1
Stand with feet hip-width apart.
- 2
Step forward with one foot and drive the opposite knee up towards the chest.
- 3
Return the raised knee to the starting position and step back.
- 4
Repeat on the same leg for the desired number of repetitions before switching legs.
Expert tip
Drive the knee up powerfully to engage the core and hip flexors effectively.
Common mistakes
- ✕Letting the front knee cave inward
- ✕Swinging the raised knee out to the side
- ✕Leaning the torso forward excessively