Mountain Climber

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Beginner
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Dynamic bodyweight exercise from plank position that targets core, hip flexors, and shoulders to build endurance, coordination, and cardiovascular fitness.

About Exercise

Equipment

Difficulty

2/5 • Beginner

Primary Muscle Groups

Abs, Hip Flexors

Secondary Muscles

Shoulders, Triceps, Chest, Glutes, Hamstrings, Lower Back

Accessory Muscles

Calves

Popularity Score

8

Goals

Endurance
Conditioning
Stability

Training Style

Calisthenics
HIIT

Setup Requirements

Requires Rack

No

Requires Bench

No

Requires Spotter

No

Space Needed

Small

Noise Level

Low

Muscle Breakdown

Abs

9/10

Rectus Abdominis, Transverse Abdominis

Hip Flexors

8/10

Iliopsoas

Obliques

7/10

External Obliques

Quads

6/10

Rectus Femoris

Shoulders

5/10

Anterior Delts

Triceps

4/10

Chest

3/10

Glutes

3/10

Hamstrings

3/10

Lower Back

3/10

Erector Spinae

Calves

2/10
Programming

Typical Rep Range

20-60 reps

Rest Between Sets

30-60 seconds

How to Perform

Start in a high plank position with hands under shoulders, body straight from head to heels, and core engaged.

  1. Engage your core to maintain a neutral spine.
  2. Drive one knee toward your chest while keeping hips level.
  3. Quickly extend that leg back to plank and drive the opposite knee forward.
  4. Alternate legs in a controlled running motion.
  5. Keep upper body stable and gaze down.
  6. Continue for desired reps or time, maintaining form.

Coaching Tips

Form Cues

  • Hips level
  • Core tight
  • Knees track straight
  • Shoulders over wrists
  • Quick switches
  • Neutral spine

Breathing

Inhale as you drive one knee in, exhale as you switch to the other leg.

Tempo

1-0-1

Range of Motion

Drive knee to chest level without sagging hips below plank line or raising them above; full extension of leg back to start.

Safety

Safety Notes

  • Avoid if acute wrist, shoulder, or lower back pain exists
  • Warm up joints before starting
  • Use incline modification for wrist relief
  • Stop if form breaks to prevent strain
  • Consult professional for pre-existing conditions

Spotting

No spotter needed; exercise is self-supported with focus on personal control.

Common Mistakes

  • Letting hips sag
  • Arching lower back
  • Bouncing on toes
  • Elbows locking
  • Head looking up
  • Uneven leg drive

When to Avoid

  • Acute shoulder impingement
  • Wrist injuries
  • Lower back pain
  • Knee issues

Flexibility Needed

  • Shoulder flexion for plank stability
  • Hip flexion for knee drive
  • Ankle dorsiflexion for toe grip

Build Up First

  • Basic plank hold competency
  • Core engagement awareness

Also known as

Mountain Climbers, Climber Exercise, Plank Climbers

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