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DNS 10 Month Tall Sit

A seated developmental position that trains the upper body — dialing in the shoulder-blade stabilizers and deep neck stabilizers through a tall, neutral, well-organized posture.

Scapular Stabilizers
Deep Neck Control
DNS / Bodyweight
Overview

What the DNS 10 Month Tall Sit Does

The DNS 10 Month Tall Sit is a seated position that encourages proper mechanics through the upper half of the body. It’s especially good for the shoulder-blade (scapular) stabilizers and the deep neck stabilizers, training them through a tall, neutral, well-organized posture. Because it’s an upper-body exercise, the lower half is set up simply and taken out of the equation so you can focus on the trunk, shoulders, and neck.

In the demonstration below, the team at Life in Motion Chiropractic in Livonia, Michigan walks through the setup and the cues that make it work. It builds on the same principles as the 3-Month Prone position — learning what scapular retraction and depression feel like — applied in an upright seated posture.

Technique

How to Perform the DNS 10 Month Tall Sit

1

Sit on a level surface

Sit on a level surface and let your hips settle into whatever feels neutral — a slight bit of external rotation at the hips is fine. This just takes the lower half out of the equation.

2

Brace and recline slightly

Create a little intra-abdominal pressure and allow a slight recline through the upper half.

3

Lift the sternum up and forward

Imagine a string on your sternum pulling up and forward. Following it engages the scapular retractors and the muscles that depress the shoulder blades.

4

Make the neck tall

Imagine a second string on the top of your head pulling upward, making the neck and cervical spine as long as possible. Doing both keeps everything neutral.

5

Set the arms

Bring your arms up into a neutral position — the same scapular retraction and depression you find in the 3-month prone exercises — while you keep those back muscles engaged.

6

Breathe and hold

Run through some breathing cycles from here, keeping strong pressure in the abdominal canister even on the exhale.

Key Cue

Picture two strings — one pulling your sternum up and forward, one pulling the top of your head toward the ceiling. Following both at once is what organizes the shoulder blades and lengthens the neck into a tall, neutral posture. Keep the belly pressure on throughout, even as you exhale, so the position stays stable rather than collapsing.

Why It Works

Benefits of the DNS 10 Month Tall Sit

Scapular stability

Trains the shoulder-blade stabilizers through retraction and depression.

Deep neck control

Engages the deep neck flexor stabilizers for a tall cervical spine.

Upright posture

Reinforces tall, neutral mechanics through the whole upper half.

Breathing under tension

Pairs steady intra-abdominal pressure with the seated hold.

Watch For

Common Mistakes

  • Letting the sternum drop and the upper back round instead of lifting up and forward.
  • Jutting the chin forward rather than lengthening the neck tall.
  • Shrugging the shoulders up instead of retracting and depressing the blades.
  • Losing intra-abdominal pressure on the exhale and collapsing the position.
Keep Going

Related Exercises & Conditions

3-Month Prone Low Quadruped Neck Stabilization Neck Pain Text Neck Full Rehab Library
FAQ

Frequently Asked Questions

What does the “10 month” refer to?
DNS positions are modeled after the developmental postures we move through as infants. The 10-month tall sit reflects the upright sitting posture a baby develops around that age — a stable, organized position for training the upper body.
What muscles does it target?
Mainly the scapular (shoulder-blade) stabilizers and the deep neck flexor stabilizers. It trains them to hold a tall, neutral upper-body posture rather than letting the shoulders round or the neck jut forward.
Why doesn’t the lower body matter here?
It’s an upper-body exercise, so the legs and hips are set up simply — neutral, with a little external rotation — just to give you a stable base and take the lower half out of the equation.
What are the “string” cues?
Imagine one string pulling your sternum up and forward and another pulling the crown of your head toward the ceiling. The first organizes the shoulder blades; the second lengthens the neck. Following both keeps the whole upper body tall and neutral.
Could this help with posture or text neck?
Many people use it to train the exact stabilizers that keep the head and shoulders in good position, which tends to be where posture and text-neck patterns break down. Whether it fits your situation depends on what’s driving your symptoms.
Is this safe if I have neck or shoulder pain?
It’s generally gentle, but the right amount of range and hold depends on your situation. If you have neck or shoulder pain — especially with numbness or tingling — have the movement reviewed first so it can be scaled for you.

This content is for educational purposes only and is not a substitute for individualized medical advice. Exercises shown may not be appropriate for every condition. Consult a qualified healthcare provider before beginning any new exercise program, especially if you have an existing neck, shoulder, or spine condition.

Ready to Build a Taller, Stronger Posture?

Learn how DNS positions like the 10 Month Tall Sit can train the shoulder and deep neck stability your posture depends on.

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