Side Mountain-Climber
A dynamic core & cardio workout! Targets obliques, improves stability, and torches calories. Feel the burn!
The Side Mountain-Climber is a compound exercise that mainly works the core, with help from the back and chest. No equipment needed: it uses just your bodyweight.

Optional Equipment

Side Mountain-Climber Muscles Worked
Primary
Abdominals (rectus abdominis); Obliques
Secondary
Boxer Muscle (serratus anterior); Upper Chest (pectoralis major, clavicular head)
Side Mountain-Climber Variations and Alternatives
How to do the Side Mountain-Climber
Start: Begin in a plank position with your arms fully extended, your hands directly below your shoulders, and your body forming a straight line from your head down to your heels.
Engage Core: Tighten your core muscles to keep your torso and legs stable throughout the motion.
Knee to elbow: Swiftly bring your right knee towards your right elbow, moving it to the side as you do so. Then, return your leg back to the starting plank position. Follow the same steps with your left knee, bringing it towards your left elbow.
Repetition: Continue alternating the movement between your right and left knee. Maintain a rapid pace to consistently challenge your heart rate.
Form Focus: Keep your hips lowered and ensure your body remains straight throughout the exercise. It’s crucial to keep breathing steadily and keep your form tight.
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Side Mountain-Climber FAQs
What muscles does the Side Mountain-Climber work?
The Side Mountain-Climber mainly works the core, with help from the back and chest. The main muscles are the rectus abdominis and obliques.
What equipment do you need for the Side Mountain-Climber?
None. The Side Mountain-Climber is a bodyweight exercise, so you can do it anywhere.
Is the Side Mountain-Climber a compound exercise?
Yes. It's a compound movement, meaning it trains several muscle groups at once rather than isolating one.
What are some Side Mountain-Climber variations and alternatives?
Similar exercises include the BOSU™ Ball Mountain-Climber, Mountain-Climber Bridge, Against-Wall Cross Mountain-Climber and Double Plank Jack to 4-Mountain-Climber.
Training calculators
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