Exercise guide
Mountain Climber Against Wall
- Intermediate
- Compound
- Timed hold
- Lower legs
- Shoulders
- Upper legs
- Waist
This advanced variation increases upper body and core demand by placing the feet on a wall, creating a decline angle that intensifies the load on the shoulders and deep stabilizers.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Equipment
Setup
- Start in a high plank position with your heels touching the base of a wall.
- Walk your feet up the wall until your body is at a 45-degree angle or parallel to the floor.
- Stack your shoulders directly over your wrists and engage your core to maintain a straight line from head to heels.
How to do it
- Exhale as you drive one knee toward your chest, keeping the other foot firmly pressed against the wall for stability.
- Inhale as you return the leg to the starting position on the wall with control.
- Alternate legs in a rhythmic, controlled motion while keeping your torso as still as possible.
- Maintain a steady tempo, focusing on core tension rather than rapid speed.
Form checklist
- Keep your hips level; do not let them sag toward the floor or pike toward the ceiling.
- Maintain a strong push through the palms to keep the shoulder blades slightly protracted.
- Keep your neck neutral by looking at the floor slightly ahead of your hands.
- Ensure the foot on the wall provides constant tension to prevent slipping.
Pro tips
- Focus on 'crunching' the lower abs as the knee comes forward to maximize the core engagement.
- Imagine pushing the floor away from you to keep the serratus anterior and deltoids fully active throughout the set.
Make it harder
- Walk your feet higher up the wall to increase the vertical angle and shoulder load.
- Add a 2-second pause at the peak of the knee drive to increase time under tension for the obliques.
Frequently asked
- What muscles does the mountain climber against wall work?
- The mountain climber against wall primarily targets the abs, deltoids, obliques, and pectorals, and also works the erector spinae, hip flexors, and serratus anterior as secondary muscles.
- What equipment do you need for the mountain climber against wall?
- The mountain climber against wall requires no equipment — just your body weight.
- Is the mountain climber against wall good for beginners?
- The mountain climber against wall is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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