Torso Rotation Machine: How To Do, Muscles Worked, Benefits

Do you wish you had a better core definition? The torso rotation machine might be the perfect solution.

The rotary torso machine isolates your core muscles, specifically your obliques, to build strength and power in rotational movements.

Get ready to learn how using this machine can translate to a stronger, more capable you – in the gym and out.

What is the Torso Rotation Machine

A torso rotation machine, also known as a rotary torso machine, works the muscles in your core.

It isolates the hard-to-target obliques more directly than some other ab machines and free-weight exercises.

Using the torso rotation machine can improve rotational power for sports and prevent lower back injuries by strengthening the core.

You may also want to try different exercise variations, such as weighted torso rotation, unilateral torso rotation, and isometric torso rotation.

Caution If you have any back problems, consult a medical professional before performing this exercise.

Machine Torso Rotation Muscles Worked

  • Primary Muscles Worked: Obliques
  • Secondary Muscles Worked: Rectus abdominis and Transverse abdominis
  • Other Muscles Engaged: Spinal erectors, Hip flexors, and Quadriceps.
Machine Torso Rotation Muscles Worked

Benefits of the Rotary Torso Machine

  • Isolates and builds strength in the obliques and abdominal muscles
  • Improves core stability and rotational power.
  • Enhances mobility through increased range of spine rotation
  • It may help reduce the risk of lower back injuries.
  • Promotes good posture and spinal alignment
  • Offers variability by changing resistance and body positioning (seated/kneeling)
  • Allows targeting of left, right, or both sides
  • More direct oblique training than free weights or other equipment
  • Useful exercise for many sports requiring rotational strength.
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How To Do Seated Chest-Supported Torso Rotation

  1. Adjust the seat height so that your chest is comfortably pressed against the chest pad and your feet are flat on the floor for stability.
  2. Sit on the machine and lean forward with your chest pressed firmly against the chest pad. 
  3. Grasp the handles with your palms facing in.
  4. Tighten your core muscles, envisioning you’re bracing for a light punch. 
  5. Rotate your torso to one side as far as you comfortably can in a smooth, controlled motion. 
  6.  Briefly squeeze the obliques at the end of the rotation, then slowly return to the starting position.
  7. Repeat the rotation to the other side. This completes one repetition.
  8. Repeat for 10–15 repetitions.
Seated Machine Torso Rotation

Tips and Form

  • Don’t let your chest move away from the pad during the exercise.
  • Control the movement at all times. Avoid jerking or swinging your torso.
  • Don’t hold your breath! Maintain steady breathing throughout the movement.
  • Maintain this core engagement throughout the exercise.

Kneeling Torso Rotation

When compared to the seated position, kneeling torso rotation often requires more core activation to maintain balance and proper form.

The kneeling position can also provide a good hip flexor stretch.

Kneeling Machine Torso Rotation

How To Do It

  • Adjust the machine seat. Kneel on the seat facing the chest pad.
  • Lean your chest forward onto the front pad.
  • Grasp both machine handles positioned at shoulder height.
  • Rotate your torso to the left.
  • Pause for one second and feel the stretch in your right obliques. Do not overextend or round your back.
  • Control the return movement and repeat on the other side.

Standing Rotary Torso Machine

The standing rotary torso machine offers several unique benefits over kneeling torso rotation and seated torso rotation.

  • The standing position mimics everyday movements like twisting and turning.
  • It reduces stress on the knees and ankles compared to kneeling torso rotation.
Standing Rotary Torso Machine

How To Do It

  1. Stand on a twisting machine with feet and hips apart and hold the machine handles.
  2. Assume a normal posture, with your back straight.
  3. Exhale and twist the pelvis slowly to your right, as far as possible.
  4. Hold the stretch for several seconds and return to your starting position while inhaling.
  5. Perform the stretch on the other side, this time turning to your left as far as you can.


  • Keep your head and upper torso in their starting position – immobile.
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The torso rotation machine helps you tone your core muscles and makes you better at sports and everyday activities.

This machine can boost your rotational power, strengthen your spine, and improve your overall stability.

If you’re ready to build a stronger core, try the torso rotation machine.

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