Mountain Climbers: How to Do It, Muscles Worked & Benefits

beginnerHomebodyweightQuads

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Mountain climbers are a fast-paced exercise in a push-up position where you drive your knees toward your chest one after another. They raise your heart rate quickly and work your core, shoulders and hip flexors, which makes them a staple of home HIIT workouts.

Primary musclesQuads

SecondaryChest, Hamstrings, Shoulders

Equipmentbodyweight

Levelbeginner

Typecompound

Movementpull

WhereHome

What is the mountain climbers?

The mountain climbers is beginner-friendly and a compound movement. Compound exercises use several joints and muscle groups at once, so they let you move more weight, burn more energy and build functional strength in less time. You can do it at home with no or minimal equipment, which makes it easy to fit into almost any routine.

Muscles worked

The main muscles trained by the mountain climbers are the quads, with help from the chest, hamstrings, shoulders.

Quads (primary)

The quadriceps are the four muscles on the front of the thigh. They straighten the knee and are the main movers when you stand up from a squat, climb stairs or jump.

Chest (secondary)

The chest muscles (pectoralis major and minor) push the arms forward and bring them across the body. The upper (clavicular) part works more in incline pressing, the lower part in flat and decline pressing.

Hamstrings (secondary)

The hamstrings run down the back of the thigh. They bend the knee and extend the hip. Strong hamstrings protect the knees and balance out the quads.

Shoulders (secondary)

The shoulders (deltoids) have a front, side and rear part. They lift the arm in every direction. Well-developed side and rear delts make the upper body look wider and help keep the shoulder joint healthy.

How to do the mountain climbers: step by step

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.

Coach’s note: Practice the first sessions with a light load or an easier variation. Perfect technique first, then add reps, then add weight.

Benefits of the mountain climbers

Raises the heart rate fast, which is good for fat-loss circuits
Strengthens the core and shoulders
Improves coordination and speed
No equipment, little space

Like all resistance training, the mountain climbers also contributes to the general health benefits of strength work: stronger bones, better blood-sugar control, improved mood and a higher resting metabolism over time. The U.S. Physical Activity Guidelines recommend muscle-strengthening activities for all major muscle groups on two or more days per week for adults.

Common mistakes to avoid

Hips bouncing up and down
Shoulders drifting behind the hands
Tiny knee drives
Going so fast that form breaks down

Most of these mistakes happen when the weight is too heavy or when you rush. Film one set from the side with your phone. It is the fastest way to spot form problems without a coach.

Form tips from a trainer

Hands under the shoulders, body in a plank line
Drive the knee toward the chest, then switch
Start slow and speed up only when the hips stay level
Use time-based sets: 20–40 seconds

How to breathe

Breathe in while the weight returns to the start position and breathe out as you pull. Keep your ribs down and your core tight so your back stays in a neutral position.

Sets and reps by fitness level

Level	Sets × reps	Rest	Frequency
Beginner	3 × 20 sec	60–90 sec	2× per week
Intermediate	4 × 30 sec	60–120 sec	2× per week
Advanced	5 × 40 sec	90–180 sec	2–3× per week

Choose a load or variation where the last 1–3 reps of each set feel hard but your form stays clean. When you can do the top of the rep range for every set, make it harder: add weight, add reps, slow the tempo or move to a harder variation. This is called progressive overload, and it is the main driver of strength and muscle gains.

Easier and harder variations

Make it easier

Slow mountain climbers (step, don't run)
Hands on a bench

Make it harder

Cross-body mountain climbers
Longer work intervals

Mountain Climbers for men and women

The technique of the mountain climbers is the same for men and women. The difference is in programming. Men often aim for more upper-body size and use heavier loads with lower reps, while many women prefer more lower-body and glute volume and moderate loads with higher reps. Both approaches work. Muscle responds to effort and progressive overload regardless of gender, and women typically recover a little faster between sets.

You will find this exercise in these HelloMyTrainer programs:

Safety tips

Warm up for 5–10 minutes before your first working set: light cardio plus a few easy reps.
Stop immediately if you feel sharp, stabbing or joint pain. Muscle burn is normal; pain is not.
If you have an injury, are pregnant, or have a heart, blood-pressure or joint condition, ask your doctor or a physical therapist before doing this exercise.
Make sure benches, chairs, steps and bars are stable and can hold your weight.

Frequently asked questions

What muscles does the mountain climbers work?

The mountain climbers mainly works the quads, with the chest, hamstrings, shoulders helping.

Is the mountain climbers good for beginners?

Yes. It is a beginner-friendly exercise. Start with the beginner sets and reps above and focus on clean technique.

How many sets and reps of the mountain climbers should I do?

Beginners: 3 × 20 sec. Intermediate: 4 × 30 sec. Advanced: 5 × 40 sec. Train each muscle group about twice per week.

Can I do the mountain climbers at home?

Yes, it needs little or no equipment.

How often should I train with the mountain climbers?

Two to three times per week is ideal for most people, with at least 48 hours between hard sessions for the same muscle group.

In a reverse lunge you step backward instead of forward.

Exercise images: public-domain photos from the open-source Free Exercise DB project. Last reviewed: October 2026.