- Set the KoreFit® to Level 1. (To increase the challenge, set the KoreFit® to Level 2, 3, or 4.)
- Start with a plank position.
- Slightly bend your elbows and keep your abdominals engaged throughout the exercise.
- Lift your opposite arm and opposite leg until they are completely extended.
- Maintain this position for 10 seconds while in complete control of the motion, then switch to the other arm and leg.