Post

This Thread may be Removed Anytime!

Twitter may remove this content at anytime! Save it as PDF for later use!

More from @Conor_Harris_

Conor Harris

@Conor_Harris_

Jan 21

The reverse plank might be the single most underrated exercise for fixing slouched posture (thoracic kyphosis).

Why?

Because it addresses the real underlying issues at both your shoulders and hips.

Here’s why it works, and how to do it 🧵

Most people think “fixing posture” is about pulling your shoulders back.

That’s not the case.

Slouched posture often stems from:
•Limited hip extension - the ability to get the legs under us properly
•Limited thoracic extension - secondary to a tight front ribcage

The reverse plank fixes these by:

✅ Driving hip extension with the glutes & hamstrings
✅ Moving your arms behind your body into extension
✅ Opening the chest & elevating the sternum
✅ Restoring front-side ribcage expansion

Read 10 tweets

Conor Harris

@Conor_Harris_

Sep 3, 2025

The Tibialis Posterior is one of the most underrated muscles for fixing knee, ankle, and foot pain.

Weakness here shows up in countless injuries - yet most rehab overlooks it. Let’s break down why it matters & how to train it 👇

1️⃣ Why it’s so important
Research links a weak tibialis posterior to ankle & foot pain.

This muscle originates on the back of the shin and runs behind the medial ankle, under the foot. Its unique position makes it essential for arch control.

2️⃣ Controlling pronation
When your foot hits the ground, the arch naturally lowers (pronation).

The tibialis posterior decelerates this motion so it happens in a controlled, healthy way. Weakness = arch collapses too far, too fast.

Read 10 tweets

Conor Harris

@Conor_Harris_

Sep 1, 2025

Struggling to squat deep without buttwink or your back rounding?

Most people blame it on ankle mobility… but that’s only part of the story.

Here’s what you need to know to fix your squat at the root cause 🧵

The real question: why is ankle mobility limited in the first place?

One underrated reason 👉 Your body’s center of gravity is shifted forward.

Read 12 tweets

Conor Harris

@Conor_Harris_

Aug 29, 2025

Most people are missing one key piece of hip mobility.

And if you don’t have it, your low back is the one paying the price.

Let’s talk about hip extension 🧵

Hip extension = your ability to bring your leg fully under you and slightly behind you.

It’s one of the most commonly limited motions I see when assessing clients.

Why does it matter?

If you can’t extend at the hip, your body will find a workaround:

👉 Arching the low back instead.
This creates repetitive stress on the spine.

Read 9 tweets

Conor Harris

@Conor_Harris_

Aug 25, 2025

Most people think Sciatica is caused by a tight piriformis muscle.

But the piriformis is usually just the messenger, not the root problem.

Here’s what’s really going on (and how to fix it)… 🧵

Most people with sciatica think the issue is their piriformis muscle being too tight and pressing on the sciatic nerve.

So, they stretch it or roll it out for temporary relief…

But that tight piriformis is usually just a symptom of something bigger.

The real problem often starts with your body’s center of gravity shifting forward. This is what I commonly see in my clients with Sciatica.

Read 13 tweets

Conor Harris

@Conor_Harris_

Aug 20, 2025

One of the most overlooked culprits in stubborn low back pain?

👉 The Quadratus Lumborum (QL).

It’s tight, overactive, and pulling your spine out of balance more often than you think.

Here’s why it matters and how to fix it 🧵

First, it’s key to understand that the QL runs between your pelvic crest and lowest rib.

When it gets short and tight, it has 2 main effects:

•Both sides: compress + extend your low back (arching)
•One side: side-bend the spine, pull the shoulder down + hike the hip up