Mountain Climber

Which muscles does it train?

Equipment needed

How to perform it

Time under tension matters more than load here: 3 to 4 sets of 8 to 15 reps, or holds of 20 to 60 seconds, with 45 to 90 seconds of rest.

Execution and technique cues

• Start in a strong push-up position with hands directly under shoulders and a straight line from head to heels.
• Engage your core to prevent your hips from sagging or lifting toward the ceiling.
• Drive one knee rapidly toward your chest while keeping the foot hovering off the floor.
• Return the foot to the starting position and immediately repeat the movement with the opposite leg.

Common mistakes

• Bouncing the hips up and down excessively, which reduces the tension on the abdominal muscles.
• Allowing the shoulders to drift backward behind the hands, placing unnecessary strain on the wrists.
• Letting the lower back arch or sag toward the floor due to weak core engagement.

Frequently asked questions

How do I count reps for the mountain climber?

You can count each knee drive as a single repetition, or count one repetition only after both the left and right knees have been driven forward.

Can I perform this exercise slowly?

Yes, performing the mountain climber slowly and with control increases time under tension for the abs and emphasizes core stability over cardiovascular conditioning.

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