# Can Connor Harris Explain Rounded Shoulders? (A Rational Critique)

Source: https://www.youtube.com/watch?v=gyJth-_S3Hg
Recap page: https://rapidrecap.app/video/gyJth-_S3Hg
Generated: 2025-11-14T00:05:23.497+00:00

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## Quick Overview

The video concludes that the common posture advice promoting a posterior pelvic tilt (PPT) while standing is misleading and anatomically counterproductive; instead, proper standing posture requires engaging the core to maintain a neutral pelvis, allowing for expansion of the rib cage and proper alignment of the torso over the feet, contrasting sharply with the frequently shown images of people collapsing their lower ribs forward or excessively tucking their pelvis back.

**Key Points:**
- The common cue to pull the pelvis back (Posterior Pelvic Tilt or PPT) when standing is misleading because it forces the lower ribs forward and shortens the back musculature, which is not optimal alignment.
- Proper standing posture, as demonstrated, requires maintaining a neutral pelvis while allowing the rib cage to expand in all directions during breathing, keeping the center of gravity stacked over the midfoot.
- The presenter challenges the notion that people with conditions like hyperkyphosis or sway back posture are actively pulling their pelvis back, suggesting that the issue is often a lack of proper rib cage position and core engagement.
- The exercise demonstrated, involving lying supine with feet on a roller and holding a dowel overhead, is designed to teach the body to expand the rib cage anteriorly while maintaining pelvic neutrality and proper breathing mechanics.
- The presenter asserts that the sway back posture, characterized by the pelvis tipping back and the upper torso leaning back, is rarely seen in real life outside of specific conditions like Parkinson's, or when people actively try to force an unnatural position.
- The correct cue for expansion involves breathing silently and fully through the nose while lying down, which facilitates front rib expansion without losing posterior rib expansion or overly engaging the neck musculature.
- Ultimately, achieving good posture relies on teaching the body to utilize the connective tissues like the IT band and thoracolumbar fascia correctly, rather than relying on intuitive but often incorrect postural adjustments like excessive pelvic tucking or rib thrusting.

![Screenshot at 00:24: A side-by-side comparison showing a 'BEFORE' posture with a prominent upper back curve and a slightly anteriorly tilted pelvis, versus an 'AFTER' posture with improved thoracic alignment and a more neutral pelvis, highlighting the goal of correcting rounded shoulders.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-00-24.png)

**Context:** The video, presented by fitness expert Conor Harris, critiques common postural advice often seen online or taught by various fitness professionals, specifically focusing on the concept of correcting rounded shoulders or thoracic kyphosis. Harris uses a skeleton model and various anatomical diagrams to argue against cues that result in a posterior pelvic tilt (PPT) or excessive rib flare, contrasting these with what he considers truly stacked and efficient postures, drawing examples from historical figures and X-rays.

## Detailed Analysis

Conor Harris critiques the common advice to correct rounded shoulders by pulling the pelvis back, arguing this cue is often misleading and anatomically counterproductive, resulting in a PPT posture where the lower ribs push excessively forward. He demonstrates using a skeleton model that when the pelvis tips backward (PPT), it forces the upper back into excessive rounding and pushes the lower ribs forward, which is not a balanced or sustainable position. Harris contrasts this with what he considers correct posture, where the center of gravity is stacked vertically through the midfoot, and the rib cage is able to expand fully in all directions (anteriorly, posteriorly, and laterally) with each breath. He shows examples of individuals exhibiting this common postural fault (PPT/sway back) where the lower ribs jut forward or the pelvis tucks excessively. Harris then introduces a corrective exercise performed lying supine with feet elevated on a foam roller and holding a dowel overhead, designed to teach proper rib cage expansion mechanics while maintaining pelvic neutrality. He emphasizes that the goal is not to stack the body rigidly against a wall but to achieve a balanced center of gravity while allowing the fascia and rib cage to move appropriately, contrasting the body's actual complex mechanics with simplistic, often misleading, postural cues found online.

### Critique of Common Postural Cues

- Harris disputes the idea that people with rounded shoulders or thoracic kyphosis are actively pulling their pelvis back (PPT); he shows that this cue often results in the lower ribs pushing forward and the upper back rounding excessively.

### Defining Optimal Posture

- Optimal standing posture involves stacking the center of gravity over the midfoot, requiring a neutral pelvis and the ability for the rib cage to expand fully in all directions (360 degrees) upon inhalation.

### The Problem with PPT/Sway Back

- He illustrates that the commonly depicted 'sway back' posture (pelvis tipped back, ribs protracted) is often the result of trying to compensate for a forward-shifted torso, leading to shortened back muscles and an unnatural configuration.

### Corrective Exercise Setup

- Harris demonstrates a supine exercise using a foam roller under the heels and a dowel held overhead, specifically to teach coordinated rib cage expansion and pelvic control without excessive neck movement or rib jutting.

### Breathing Mechanics

- He emphasizes the importance of silent, full inhalation through the nose while maintaining core tension to encourage proper rib cage expansion, contrasting this with faulty breathing patterns that exacerbate poor posture.

### Consequences of Poor Cues

- Harris argues that following common cues like 'shoulders back' or 'tuck your pelvis' often leads to compensatory movements that maintain or worsen the original postural issues, as evidenced by diagrams showing kinetic chains moving incorrectly.

![Screenshot at 00:24: Comparison of 'BEFORE' \(rounded shoulders/kyphosis\) and 'AFTER' \(improved posture\) profiles, illustrating the goal of correction.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-00-24.png)
![Screenshot at 00:49: Anatomical diagram highlighting the Serratus Anterior muscles \(red\) attachment to the ribs, relevant to rib cage mechanics.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-00-49.png)
![Screenshot at 01:01: Demonstration using the skeleton model to visualize the ideal plumb line alignment from the ear through the hip and ankle.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-01-01.png)
![Screenshot at 01:47: Diagram showing the concept of sway back posture where the pelvis tips back, causing the lower ribs to move forward relative to the feet.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-01-47.png)
![Screenshot at 02:24: Image of a woman with PPT, noting the front of her pelvis is too far forward of her toes, contrasting with the corrected posture.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-02-24.png)
![Screenshot at 03:31: Diagram illustrating the mechanics of sway back posture where the pelvis moves back, causing the upper back to round and the lower ribs to compress backward.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-03-31.png)
![Screenshot at 04:04: Illustration showing the effect of dropping the back of the rib cage, resulting in the upper torso leaning back, which is counterproductive.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-04-04.png)
![Screenshot at 06:06: Side-by-side comparison of a man's posture showing proper neck/torso alignment versus an incorrect, forward-jutting head posture.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-06-06.png)
![Screenshot at 09:11: Anatomical illustration showing that pulling shoulder blades back narrows the upper back, while moving them forward widens the back.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-09-11.png)
![Screenshot at 12:17: Comparison of two skeletal models illustrating the difference between a 'Plumb Line Shape' and a 'Maximum Mean Thoracic Capacity Shape'. The latter shows greater rib cage expansion capacity to the front and side \(pink area\). This highlights the goal of 3D rib expansion, not just anterior rib jutting which causes PPT/sway back in other contexts shown later in the video \(12:51\). I selected this graphic as it visually summarizes the complex structural goal being discussed, contrasting the target state with the common poor posture state \(implied by the narrow left side\). \[Self-Correction: I will use a clearer image that shows the core problem better, like the wall test showing the rib cage issues, or the sway back diagram.\] Let's use the diagram showing the faulty movements instead, as it relates directly to the critique of bad cues. Re-selecting screenshot: 27:03:Diagram comparing the faulty posture \(left\) where the torso shifts forward and the pelvis tips back, against the desired posture \(right\) where alignment is maintained vertically with appropriate load distribution and rib cage mechanics \(green arrows\). This directly contrasts the faulty movements Harris critiques with the desired outcome shown in his diagram set.](https://ss.rapidrecap.app/screens/gyJth-_S3Hg/00-12-17.png)