High plank position, drive knees to chest alternating rapidly. Keep hips level.
MUSCLES WORKED
Core, Hip Flexors
Also: Shoulders, Quadriceps, Cardiovascular
COACH'S NOTE
Drive knees to chest quickly
How to do it
01
Start in a high plank position with hands under shoulders.
02
Set up with the bar at mid-chest height and your eyes under it.
03
Brace, unrack, and settle the bar over your shoulders before the first rep.
04
Lower under control to the same spot every rep.
The full mountain climbers guide is in the app.
✓
3 more steps
✓
2 common mistakes and how to fix them
✓
Animated demo and a rest timer, set by set
Open it in Fittrexx — free
How Fittrexx programs it
cardio · bodyweight
STYLE
Home · Outdoor
WHERE
🔒 In the app
SETS × REPS
🔒 In the app
REST
Fittrexx writes the sets, reps, rest and starting weight for mountain climbers from your goal, experience and gear, then adjusts them as it learns how you recover.