Exercise Library / Mountain Climber
Mountain Climber
A sprint in a plank — core, shoulders and heart rate all at once.
Muscles worked
Primary Abs
Secondary Hip Flexors Shoulders
Tap a muscle to explore it on the interactive muscle map.
How to do it
- Start in a strong straight-arm plank, hands under shoulders.
- Drive one knee toward your chest, then switch legs like you’re running.
- Keep your hips low and level — the plank never breaks.
- Stay light on your toes; quick, quiet foot switches.
- Breathe on rhythm — don’t hold your breath as the pace climbs.
Common mistakes
- Hips piking up. Rising into a downward-dog shape unloads the core — the plank is the exercise.
- Bouncing shoulders behind the hands. Rocking backward each switch takes the weight off the shoulders and shortens the knee drive.
- Stomping the feet. Heavy landings mean slow switches — this move should feel like sprinting, not stomping.
What the camera coach watches
These are the exact checks FitFormBuddy runs on every rep of mountain climber — and what it says when you drift:
- Hip height through the whole set“stay low in a strong plank”
Get real-time form cues on this exercise
FitFormBuddy watches through your camera and coaches you mid-set — reps counted, mistakes called out as they happen.
