How to do it
Stay on the balls of your feet the entire set.
- 1
Start in a high plank position with your hands under your shoulders and your body in a straight line.
- 2
Quickly draw one knee towards your chest, then return it to the starting position.
- 3
Alternate legs at a fast pace, as if running in place while keeping your upper body stable.
- 4
Continue alternating legs for the desired number of reps or time.
Expert tip
Maintain a strong plank position throughout the exercise, keeping your body in a straight line from head to heels.
Common mistakes
- ✕Hopping the hips upward with each knee drive
- ✕Shifting the hands forward of the shoulders
- ✕Letting the head drop toward the floor