How to Do Mountain Climbers
Start and end of one clean rep of Mountain Climbers.
Quick facts
| Primary muscle | Quads |
|---|---|
| Secondary muscles | Chest, Hamstrings, Shoulders |
| Equipment | Bodyweight |
| Category | Plyometrics |
How to perform Mountain Climbers
- Begin in a pushup position, with your weight supported by your hands and toes. Flexing the knee and hip, bring one leg until the knee is approximately under the hip. This will be your starting position.
- Explosively reverse the positions of your legs, extending the bent leg until the leg is straight and supported by the toe, and bringing the other foot up with the hip and knee flexed. Repeat in an alternating fashion for 20-30 seconds.
Muscles worked
- Quads (primary): extends the knee to drive squats, lunges and jumps.
- Chest (secondary): pushes the arms forward and across the body — your horizontal pressing power.
- Hamstrings (secondary): bends the knee and extends the hip through hinges and pulls.
- Shoulders (secondary): raises and rotates the arms and drives everything overhead.
Sets & reps by goal
| Goal | Sets × reps | Load | Rest |
|---|---|---|---|
| Strength | 3–5 × 3–5 | Heavy (~85%+) | 2–3 min |
| Hypertrophy | 3–4 × 8–12 | Moderate (~65–75%) | 60–90 s |
| Endurance | 2–3 × 15–20 | Lighter (~50–60%) | 30–45 s |
Bodyweight movement: once you own the top of a rep range, progress by slowing the tempo, pausing at the hardest point, or moving to a harder variation instead of adding load.
Form tips
- Keep the knees tracking in line with the toes and push the whole foot into the floor.
- Own the largest range you can control with clean form before you chase extra reps.
- Land softly through the whole foot with bent knees to absorb the force, and reset fully between reps.
- Control the lowering phase — a 2–3 second descent builds more than dropping the weight.
Common mistakes
- Letting the knees cave inward as you push out of the bottom.
- Cutting the range short to squeeze out extra reps instead of owning each full one.
- Landing stiff-legged or with locked knees, which spikes the load on the joints.
Frequently asked questions
What muscles does Mountain Climbers work?
Mountain Climbers mainly works the quads, with the chest, hamstrings, shoulders helping as secondary movers.
What equipment do I need for Mountain Climbers?
None — Mountain Climbers is a bodyweight movement, so you only need your bodyweight and a little space.
How many sets and reps should I do for Mountain Climbers?
It depends on your goal: about 3–5 sets of 3–5 heavy reps for strength, 3–4 sets of 8–12 for muscle growth, or 2–3 sets of 15–20 for endurance. Bodyweight movement: once you own the top of a rep range, progress by slowing the tempo, pausing at the hardest point, or moving to a harder variation instead of adding load.
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