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Physical Therapy News and Education from Muscle IQ Physical Therapy
Doctor of Physical Therapy, Chris Knudsen, provides useful insight and analysis of today's top health stories affecting you. Dr. Chris gives his take on recent research articles that pop up in the news, as well as helpful tips for those looking for pain relief from low back pain, neck pain, and other injuries.
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The Poly-Vagal Approach — How Your Nervous System Controls Whether You Heal
Think about the last time you truly relaxed. Not just sat down — actually released tension. Your shoulders dropped, your breathing slowed, your jaw unclenched. That shift wasn't just comfort. That was your nervous system changing states. And in that new state, your body becomes significantly more capable of healing. Your Nervous System Is Always Reading the Room Your nervous system doesn't just register pain. It continuously scans your environment for signals of safety or thr
Dr Chris Knudsen
12 hours ago4 min read
Why a Therapist's Touch Immediately Changes Your Muscle Strength
You've probably felt it at some point. Hands-on work during a physical therapy session, and then a muscle that was stiff and unresponsive suddenly has more life in it. More force. Easier movement. It happens fast enough that it can feel surprising. But there's a clear neurological reason why it works — and for patients in Orem and Utah County, understanding that reason changes how you think about treatment. The Motor Cortex Doesn't Work in Isolation The primary motor cortex —
Dr Chris Knudsen
2 days ago4 min read
The Brainstem Hub That Controls Both Your Pain and Your Heart Rate
You've probably noticed that stress makes pain worse. A bad day, a rough night of sleep, a morning when your heart is already racing — and suddenly that ache in your back or knee feels louder than it did yesterday. Most people chalk it up to anxiety. But there's a more specific reason, and it lives deep in your brainstem. A region called the periaqueductal gray — or PAG — is the hub where your nervous system manages both your autonomic state (the system that regulates your he
Dr Chris Knudsen
3 days ago3 min read


Your Brain Has a Brake Pedal for Your Muscles — and Pain Presses It Harder
You've been doing the work. You rest the sore knee, you push through the exercises, you wait for the strength to come back. But the muscle still feels weak and unreliable, like part of it just won't switch on no matter how hard you try. That can be frustrating and a little discouraging, especially when you know you're putting in the effort. Here in Orem we hear this every week. And there's a reason for it that has nothing to do with how hard you're trying. Your nervous system
Dr Chris Knudsen
7 days ago3 min read


Why Chronic Pain Is Different — How Your Nervous System Rewires Itself
You remember when the pain made sense. You hurt your back lifting in the garage, tweaked a knee on a hike up the canyon, or strained your neck and waited for it to settle the way these things usually do. But months have passed, and it hasn't faded. Stranger still, it doesn't behave the way it did at the start. It flares for no clear reason, calms slowly, and sometimes shows up in new places. If that sounds like you, here's something most people are never told. Pain that lasts
Dr Chris Knudsen
7 days ago3 min read


Afferent Input Testing — How Muscle IQ Finds the Hidden Cause of Your Pain
You've done the stretches. You've rested. Maybe you've even had treatment for the spot that hurts — and it helped for a day or two before the ache crept back. If your pain keeps returning no matter how much you focus on it, there may be a simple reason: the place that hurts isn't always the place that's causing the problem. That idea is at the heart of a way of testing the body that we use every day here in Orem. You can watch a discussion of this approach on the Muscle IQ Ed
Dr Chris Knudsen
Jun 163 min read


Chronic Pain — Why It Gets Louder Over Time (and What Actually Changes It)
You remember when the pain started. Maybe it was a tweak in your back lifting something in the garage, a knee that never quite settled after a hike up the canyon, or a neck that has bothered you since a fender-bender on I-15. At first it made sense. Something was hurt, so it hurt. But months later, the strange part is that the pain hasn't faded the way a cut or a bruise would. If anything, it feels louder — quicker to flare, slower to calm, and sometimes spreading to places t
Dr Chris Knudsen
Jun 153 min read


AMI After ACL — More Than Half of Patients Have It at the Start
You felt the knee go — a pop on the soccer field, a hard cut on the basketball court, or a bad landing on a ski run up the canyon. The diagnosis comes back as a torn ACL, the main stabilizing ligament inside your knee. From there, the plan seems straightforward: rebuild the ligament, rebuild the strength, get back to your life. But here is something most people are never told. Before you ever reach surgery, your knee has often already done something else — it has started swit
Dr Chris Knudsen
Jun 133 min read


Knee Osteoarthritis and the Brain's Broken Pain Off-Switch
You've probably been told your knee is "bone on bone." Maybe an X-ray showed worn cartilage, and the explanation was simple: the joint is wearing out, and that's why it hurts. It makes sense on the surface. But here in Orem we meet people every week whose knee pain doesn't match that story — pain that flares on a good X-ray day, or lingers long after an injection that was supposed to fix it. If that's you, the missing piece may not be in your knee at all. It may be in how you
Dr Chris Knudsen
Jun 123 min read


Muscle Testing — Why Not All Physical Therapists Test the Same Way
You go to one physical therapist, and they push on your arm or leg, ask you to hold, and jot something down. You go to another, and they barely test your strength at all — they hand you a sheet of exercises and send you on your way. Same profession, very different first visit. So which one is right? A recent video discussion between physical therapists Simon King and Alan Jenks dug into exactly this question — the pros and cons of muscle testing and why clinicians disagree ab
Dr Chris Knudsen
Jun 113 min read


Sports Injuries in Orem — Why the Muscle Damage Is Bigger Than the Injury Itself
You came down wrong after a rebound, rolled an ankle on the Bonneville Shoreline Trail, or felt something pull during a Saturday soccer game. The swelling settles, the X-ray looks fine, and the sharp pain fades. You expect to pick up right where you left off — but the joint feels weak and unreliable, and the muscles around it just won't fire the way they used to. If that sounds familiar, you are not imagining it, and you are not behind on your effort. For active people across
Dr Chris Knudsen
Jun 103 min read


Arthrogenic Muscle Inhibition: Why a Joint Injury Quietly Weakens Your Muscles
You hurt a knee, rolled an ankle, or had surgery on a joint. The swelling goes down, the sharp pain fades, and you expect your strength to come right back with it. But it doesn't. The muscle around that joint still feels weak and unreliable, no matter how hard you try to push through it. Here in Utah County we see this all the time — after a ski injury up the canyon, a soccer tackle, or a knee operation. Patients assume the muscle has shrunk or that they simply need to "work
Dr Chris Knudsen
Jun 93 min read


ACL Injury Does More Than Tear a Ligament — The Three Systems It Breaks
You felt it the moment it happened — a pop, a buckle, and a knee that suddenly didn't trust the ground. Maybe it was on a soccer field in Orem, on a ski run up the canyon, or in a split-second cut on the basketball court. The diagnosis comes back: a torn ACL, the main stabilizing ligament inside your knee. From there, the story most people are told is simple. The ligament tore, so the ligament gets repaired or rebuilt, and once it's strong again you're back to normal. But tha
Dr Chris Knudsen
Jun 93 min read


Concussion Rehab — Why Your Brain Needs Your Muscles to Recover
You took a hit — maybe on a ski run up the canyon, in a car on I-15, or on the field during a Friday night game here in Orem. The worst of the headache and fog has eased, but something still feels off. You get dizzy when you turn your head. Bright lights wear you out. Your balance isn't quite what it was, and simple tasks leave you drained. If that sounds familiar, here's something most people never hear: recovering from a concussion isn't only about resting your brain. Your
Dr Chris Knudsen
Jun 53 min read


Why the Right Kind of Exercise Calms Pain
Most exercise won’t strengthen the brain’s pain off-switch — but motor control exercise can. Here’s why the right kind of movement calms pain.
Dr Chris Knudsen
Jun 42 min read


Why Pain Shuts Your Muscles Off — At the Brain Level
You hurt something — a knee, a shoulder, your low back. The pain settles in, and then you notice something strange. The muscle around the injury feels weak. You try to push through it, but it just won't fire the way it used to. It's not that the muscle is gone. It's that it stopped answering the phone. This is one of the most overlooked parts of recovery, and it surprises almost every patient who hears it. Muscle weakness after an injury often isn't a problem in the muscle at
Dr Chris Knudsen
Jun 43 min read


Why a Normal Strength Test Doesn't Mean Your Knee Is Ready
You did the rehab. You went to your appointments, did your exercises, and one day the therapist measured your strength and said the number looked good. Your knee felt strong enough. So you got back to hiking the trails above Orem, back to pickleball, back to chasing your kids around the yard. And then the knee reminded you it wasn't quite ready — it ached, it gave way, or it simply didn't trust you the way it used to. If that sounds familiar, you are not imagining it. A stren
Dr Chris Knudsen
Jun 23 min read


When weakness lingers, the problem is often the nervous system — not the tissue
A 2024 review in Musculoskeletal Science and Practice maps something Muscle IQ builds every treatment plan around. After a joint injury, muscles often stay weak long after the tissue itself has healed — and the reason lives in the nervous system. The brain and spinal cord stop fully driving the muscle. The researchers call this arthrogenic muscle inhibition, and they list reduced muscle tone as one of its clinical signs. That single detail matters, because reduced muscle tone
Dr Chris Knudsen
May 302 min read


Three Important Factors in Successfully Recovering from Chronic Back Pain
Part 1: Preventing and Reversing Fibrogenesis (Fascial Distortions) At Muscle IQ, WE LOVE TREATING LOW BACK PAIN. And, we work hard to ...
Dr Chris Knudsen
May 19, 20202 min read


Whiplash Motor Vehicle Accidents
What is whiplash? How many people get Whiplash? What are typical recovery rates for whiplash?
Dr Chris Knudsen
Sep 11, 20184 min read
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