Add a video, GIF or photo link to show how this exercise is performed.
Start from a light, controlled stance with good posture.
1. Stand tall and jog in place.
2. Drive your knees up toward your chest as fast as controlled form allows.
3. Pump your arms in rhythm with your legs.
Keep breathing rhythmic; do not hold your breath during intervals.
Going all-out too early and losing form as fatigue sets in.
Scale the pace to keep movements controlled; stop if you feel dizzy or joint pain.
Beginner: Slower pace, lower knee height.
Intermediate: As described.
Advanced: Increase pace for the full interval.