How to Do Side Plank Oblique Crunch

Side Plank Oblique Crunch is a core exercise using bodyweight, listed as intermediate in the A90 Training Club catalogue.

Primary muscle

Core

Equipment

Bodyweight

Difficulty

Intermediate

01 / Move with control

How to perform

How to do Side Plank Oblique Crunch

  1. 01Start in a side plank position on the right forearm with the legs stacked and the left hand behind the head.
  2. 02Lift the hips so the body forms a straight line from the head to the heels.
  3. 03Draw the left knee toward the chest while simultaneously bringing the left elbow down to meet it.
  4. 04Crunch the side of the torso hard at the point of contact, then return the leg and arm to the starting position.
  5. 05Complete the set on one side before switching to the left forearm.

Same guidance shown inside the A90 app

02 / Anatomy

Muscles worked by Side Plank Oblique Crunch

Primary Stabiliser Inactive

Tap to explore manually

Primary movers

  • Core Stabilises the spine and transfers force.

Stabilisers

  • Lower back Stabilises the spine during lifts and bends.
  • Forearms Grips and stabilises the wrist under load.

03 / A90 Coach

A90 Coach tip

Ensure the elbow is stacked directly under the shoulder to protect the rotator cuff while performing the knee-to-elbow crunch.

Same coaching engine used inside the A90 app

05 / FAQ

Side Plank Oblique Crunch questions

What muscles does Side Plank Oblique Crunch work?

Side Plank Oblique Crunch is catalogued as a core exercise in A90 Training Club, with the core as its primary muscle group.

How do you do Side Plank Oblique Crunch correctly?

Start in a side plank position on the right forearm with the legs stacked and the left hand behind the head. Lift the hips so the body forms a straight line from the head to the heels. Draw the left knee toward the chest while simultaneously bringing the left elbow down to meet it. Crunch the side of the torso hard at the point of contact, then return the leg and arm to the starting position. Complete the set on one side before switching to the left forearm.

What is the A90 coach tip for Side Plank Oblique Crunch?

Ensure the elbow is stacked directly under the shoulder to protect the rotator cuff while performing the knee-to-elbow crunch.

Is Side Plank Oblique Crunch suitable for beginners?

Side Plank Oblique Crunch is rated intermediate in the A90 Training Club catalogue.

Do you need equipment for Side Plank Oblique Crunch?

No. Side Plank Oblique Crunch is listed as a bodyweight movement in the A90 catalogue, so you can train it with no kit.

A90 Intelligence

Put this into a real plan.

A90 Intelligence programmes side plank oblique crunch into a 30, 60 or 90 day plan built around your equipment, then adjusts it as you train.

Download on the App StoreGet it on Google Play

Free to download · 7 day free trial · Cancel anytime