Mind Core Fitness
HomeAbout1-2-1 TrainingExercisesBlog
WhatsApp

Exercise library / Core

How to do a cross-body mountain climbers

CoreBodyweightBeginner

Mountain climbers with a twist — drive each knee toward the opposite elbow to work the sides of your core.

How to do it

  1. 1Start in a strong high plank
  2. 2Drive one knee across toward the opposite elbow
  3. 3Switch sides, keeping your hips low

Common mistakes

  • ×Hips bouncing high with each rep
  • ×Hands drifting forward of the shoulders

Muscles worked

CoreObliquesShoulders

Let Core Buddy do the deciding

See the cross-body mountain climbers and 200+ more inside Core Buddy. It builds and times the whole session for you — every move with a video like this one. Free to download.

Download on the App StoreGet it on Google Play

Try these next

Mountain climbers
CoreBeginner

Mountain climbers

Part core, part cardio — drive your knees in from a high plank and your heart rate climbs quick. Go at a pace…

How to do it →
Bicycle crunch
CoreBeginner

Bicycle crunch

A rotating crunch that works the front and sides of your core at once. Slow and controlled beats fast and slop…

How to do it →
High knees
CoreBeginner

High knees

Running on the spot with a bit of purpose — knees up, quick feet. A simple way to warm up or add a cardio hit…

How to do it →
Mind Core Fitness

Personal training, online coaching, and nutrition guidance. Based in Elgin, Scotland.

Explore

  • Home
  • About
  • 1-2-1 Training
  • Blog

Legal

  • Privacy policy
  • Terms
  • WhatsApp

Social

  • Instagram
  • Facebook
  • TikTok
  • YouTube

© 2026 Mind Core Fitness.