The high knee step-up is a cardio-focused step-up variation where you drive the back knee up explosively after stepping onto the box. It combines lower-body strength with explosive hip flexion and cardiovascular conditioning. It is a popular HIIT exercise.
Muscle Group
Cardio, Glutes, Hip Flexors, Quadriceps
Equipment Required
Bodyweight
Type
Cardio
Equipment
Band
Difficulty
Intermediate
Key Benefits
- Combines step-up strength with explosive cardio
- Builds quad and glute power
- Trains explosive hip flexion
- Excellent HIIT exercise
- No equipment needed beyond a box
- Easy to scale with box height
How to perform
- Stand facing a sturdy box or bench (knee-height).
- Step your right foot up onto the box.
- Drive through your right foot to push your body up explosively. As you reach standing, drive your left knee up to hip height (or higher).
- Briefly hold the high-knee position on top of the box.
- Lower your left foot back to the floor.
- Step your right foot back down.
- Repeat all reps on the right, then switch.
- Move with explosive intent, not slow control.
FRONT VIEW
BACK VIEW
Abs
Primary
Glutes
Primary
Calves
Primary
Quadriceps
Primary
Hip Flexors
Primary