Cross Body Mountain Climber

The Cross Body Mountain Climber is a dynamic core exercise that combines a high plank with a rotational knee drive to target the obliques. It builds core stability and shoulder strength while elevating your heart rate for conditioning.

Exercise movement reviewed by:Marie Braga, PT, DPT, CSCS
How Iridium Helps

Because this movement requires significant wrist and shoulder stability, the AI monitors your recovery data and injury history to suggest forearm-based alternatives if joint stress is detected. By tracking your set duration and RPE, the system ensures you are maintaining the necessary time-under-tension to fatigue the obliques rather than relying on momentum.

Form Cues

Do
  • Start in a strong high plank with wrists directly under shoulders
  • Drive your right knee toward your left elbow
  • Twist your hips slightly to engage the obliques
  • Keep your hips level with your shoulders
  • Exhale sharply as you drive the knee across
Don't
  • Don't hike your hips up toward the ceiling
  • Don't let your lower back sag or arch
  • Don't allow your shoulders to drift behind your wrists
  • Don't bounce your toes off the ground excessively

Common Mistakes

  • Hiking hips too high
  • Rushing the tempo
  • Sagging lower back
  • Shoulders drifting backward
  • Not twisting enough

Muscles Worked

This exercise heavily recruits the internal and external obliques through the rotational movement of the hips. It also demands constant isometric contraction from the rectus abdominis to maintain the plank position, while the anterior deltoids and triceps work to stabilize the upper body.

Primary

General CoreObliques

Secondary

Anterior DeltoidHip Flexors

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