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What poor posture actually costs you

Poor posture is not about looking slouched. It is uneven wear on your joints, a higher injury risk, and pressure left on your lower back that proper alignment would take off. Here is what that actually costs.

The answer comes from the overhead squat screen I run in my private Irvine studio, and from the patterns it names. Each one comes with the muscles it implicates, and with the issues it is associated with.

Your joints wear like tires

Think of your joints like the tires on a car. Keep driving them out of alignment and they wear unevenly. Move through life with poor alignment and you wear the joint down faster, which raises your risk of injury.

That is the first cost, and it is quiet. Nothing hurts on the day it starts. A screen catches it earlier, in the shape of the squat rather than in how the joint feels.

Standing side view, used to see how the head, ribs and hips stack over the ankles.

What sitting all day builds in

If you live a mostly sedentary lifestyle, you likely have some degree of postural distortion already. The common patterns include feet rotating outward, knees rolling inward, an arched lower back, and forward shoulders with a forward head.

Every one of those is a muscle imbalance: one muscle short and tight, its opposite long and weak. The joint still moves. It just moves from the wrong place, under load, for years.

The VeraForma app comparing a neutral seated posture with a forward head position.

Knees that roll inward

When your knees travel inward on a squat, the screen points at the adductor complex, TFL, lateral gastrocnemius and vastus lateralis among the likely tight ones. The medial hamstring, gluteus medius and maximus, and the VMO are the likely weak ones.

That pattern is associated with anterior, medial and lateral knee pain, and with IT band tendonitis. Naming it is not the same as saying you have any of that. If you have a condition, get cleared by your own doctor first.

Bodyweight squat at the bottom position seen from the front, where the knees show their path.

The arch in your lower back

A big arch usually comes with a tight hip flexor complex, erector spinae and latissimus dorsi, paired with a weaker gluteus maximus, hamstrings and intrinsic core stabilizers. The issue listed against that pattern is low back pain.

You feel it as stiffness, not injury. Then you load it. The cue in the room is simple. Brace your core and tuck your ribs down before you squat.

Barbell deadlift at the bottom position, hips pushed back and the lower back held long.

Heels lifting and leaning forward

If your heels rise in a squat, the soleus is likely doing too much and the anterior tibialis too little. Heel rises are associated with plantar fasciitis, patellar tendonitis and posterior tibialis tendonitis, better known as shin splints.

Excessive forward lean points at a likely tight soleus, gastrocnemius, abdominal complex and hip flexor complex, with a likely weak anterior tibialis, gluteus maximus and erector spinae. That lean is associated with hamstring, quad and groin strain, and low back pain.

Goblet squat at the bottom position seen from the side, where heel contact shows.

Your trainer

I am Brad Glaser. Five certifications: NASM CPT and Master Trainer, NASM-CES, NASM-PES, NCSF and PFIT, plus a current CPR card. I have trained clients since 2005 and opened the Irvine studio in 2008.

NASM-CES is the corrective exercise credential, and posture is exactly what it is for. I train on the NASM OPT model: start from the basics and progressively advance. The studio is private, just you and me.

Brad Glaser, NASM certified personal trainer and owner of OC Personal Training in Irvine.

Why one pattern rarely travels alone

One pattern rarely travels alone, and the screen shows why. The soleus named under heels rising is named again under excessive forward lean. A short hip flexor complex sits under both forward lean and an arched lower back.

So the cost is not one joint. The erector spinae is listed as probably tight under an arched lower back and probably weak under excessive forward lean. The same muscle gets lengthened on one person and strengthened on the next.

The VeraForma app marking tight muscles in orange and weak muscles in blue on a body map.

What good posture pays back

Proper alignment stretches muscles that would otherwise stay tight, taking pressure off your lower back. Standing tall also lets your lungs fully expand, which is hard when you are slumped over. The cue for that is short.

Keep your chin tucked, lead with your chest, not your neck. The third payoff is the workout. Good posture reduces strain on muscles and joints, so you can train longer without fatigue and at a lower injury risk. Individual results vary.

A client holding a single-leg hinge with a dumbbell while Brad Glaser watches the position.

Stretching the tight part is not enough

Correcting posture follows the Corrective Exercise Continuum, four phases in a fixed order. The tight muscle gets inhibited and lengthened first. Only then does the weak muscle get activated, and only then does the correction get integrated into real movement.

Skipping steps does not speed it up. It just means the correction does not hold. Lengthening a muscle that is already long and weak can make the imbalance worse, so the order is not optional.

Bent-over row with a bar, the back held flat and the elbows drawn past the ribs.

Where to start on yours

Posture work is not a one-time fix. It is an ongoing muscle balance process, so it belongs inside the training you already do, not in a routine bolted on at the end.

The free hour starts where the consultation starts. What areas do you want to improve most, and why? Then the posture and movement check, a short workout, and a plan you leave with.

Standing front view, the start position used for the overhead squat movement screen.

Questions

Can bad posture actually cause pain?

People with poor posture are more prone to pain and injury. The patterns are associated with specific issues, like low back pain under an arched lower back. Associated with, never a finding about you.

How long does posture work take?

There is no one-time fix. It is an ongoing muscle balance process, and each correction runs through all four phases before it holds. How fast it moves depends on what your screen shows, not on an average. Individual results vary.

What do you check for posture?

Standing position first, then an overhead squat. The screen names what it sees, like heels rising or knees moving inward, and which muscles that implicates.

Do I need to be fit?

No. I start from where you are now, on the NASM OPT model, and the first hour is free with no obligation and no credit card.

What happens after I book?

You give a name, email and phone. Brad will call you within 1 business day to book a time. Nothing is charged, and no card is taken.

The VeraForma app listing which muscles are likely tight and which are likely weak.

Book your free session

OC Personal Training is at 17165 Von Karman Ave, Suite 103, Irvine, CA 92614. We are open Monday through Friday, 6 AM to 8 PM, and closed on weekends.

Call (949) 574-4755 or book the free hour online. It takes about 30 seconds. Your first session is one hour, free, with no obligation and no credit card required.

Try a free session

Posture correction

Muscle imbalances

Flexibility and assisted stretching

Strength training

Brad Glaser spotting a client through a barbell bench press in his private Irvine studio.

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