What the Body Goes Through in a Collision

A motor vehicle accident loads the body with forces it was never designed to absorb in a fraction of a second. The head whips, the trunk twists, the limbs brace, and tissues that would normally handle that load over seconds get loaded over fractions instead. The result ranges from soft tissue strains and ligament sprains to joint irritation, nerve symptoms, and the muscular tightness that follows almost every collision regardless of speed.

The most common injury we see is some form of whiplash, the neck-and-upper-back pattern from the head being thrown back and forth. That deserves its own page and we have one. But whiplash is rarely the whole picture. The same forces that strain the neck also load the mid-back, low back, shoulders, hips, and sometimes the jaw. A complete recovery has to account for all of it rather than chasing the loudest symptom while the quieter ones quietly stiffen up.

One of the most disorienting parts of a car accident recovery is how often the pain shows up later rather than at the scene. Adrenaline and shock can mask significant tissue irritation for hours or days. Muscles protect themselves with reflexive tightness, and that tightness sometimes feels like nothing for the first 24 to 48 hours. By day three or four, things that felt fine the morning of the accident can feel suddenly stiff and sore. That delayed presentation is one of the reasons we recommend an assessment soon after a collision, even if you feel mostly okay in the immediate aftermath.

Why Different Collisions Produce Different Patterns

The injury pattern after a motor vehicle accident usually traces back to a combination of these factors:

  • The direction of the collision (rear-end, side, head-on) and where the body was loaded

  • The speed and force involved, including the deceleration the body experienced

  • Whether the head was facing forward or turned at the moment of impact

  • Position in the vehicle and whether the seatbelt and headrest were correctly adjusted

  • Whether you were aware of the impact coming or were caught completely off guard

  • Pre-existing tightness, weakness, or prior injuries in the neck, back, or shoulders

  • The size and weight difference between the vehicles involved

  • Bracing reflexes through the arms, legs, and trunk during the collision

Mapping What Got Loaded and How It Is Responding

The conversation starts with the accident itself. The direction of impact, the speed, where you were in the vehicle, what you remember of the moment, and what symptoms have shown up so far. A rear-end collision and a side-impact collision produce different injury patterns, and the timeline of when symptoms appeared tells us something about how the tissue is responding.

The exam covers more territory than a typical injury evaluation because the forces usually load several regions at once. We look at the neck, mid and lower back, shoulders, hips, and any specific area that has been symptomatic. We check for nerve involvement, since some collisions produce tingling, numbness, or weakness that radiates into an arm or leg. We also pay attention to symptoms that are not strictly musculoskeletal, including headaches, jaw pain, dizziness, and concentration changes, since these can point toward a concussion-related component. If anything in the picture suggests a more serious issue, we coordinate with your physician or refer for imaging when warranted. A look at what to do after an injury gives a useful sense of how the early decisions shape the recovery.

Physiotherapist performing neck treatment on patient in Burlington sports therapy clinic

Settling the Symptoms and Rebuilding the System

Why Recovery Usually Takes a Multi-Region Approach

The early phase calms down the most acutely irritated tissues and restores some basic movement. Manual therapy aimed at the muscles and joints that are guarding most heavily, gentle range of motion work that respects the irritated tissue, and education about how to move through the day without flaring symptoms. Most people recover faster when they keep moving in a tolerable range than when they wait for the discomfort to disappear before doing anything. Active Release Technique and Graston Technique can help with the more stubborn muscle and fascia restrictions that develop after a significant collision.

The middle and later phases lean heavily on progressive strengthening. The neck, mid-back, shoulders, and core all tend to need rebuilding because the bracing and guarding response after an accident leaves these areas weaker and more reactive than they were before. You can’t go wrong with strong, and the rebuilding phase of a motor vehicle accident recovery is one of the clearest examples of why. Acupuncture, laser therapy, or shockwave therapy may support the slower-recovering tissues alongside the active rehabilitation, but they are part of a broader plan rather than standalone fixes.

Recovery timelines vary widely with the severity of the collision and the regions involved. A milder collision with no significant pre-existing issues might resolve over four to eight weeks. A moderate collision with multi-region involvement often takes two to four months of consistent work. The trajectory matters more than the timeline. Steady progress, even if slower than expected, is a better predictor of a full recovery than the calendar.

We Handle the Paperwork So You Can Focus on Recovering

If your injuries happened in a motor vehicle accident, you should not have to also become an expert in insurance forms while you are trying to heal. We take care of the paperwork and billing, we are familiar with the process, and we work with your auto insurer directly under Ontario’s accident benefits. MVA patients are a regular part of what we do. Give the clinic a call before booking if you have questions about coverage and we can walk through it.

Motor Vehicle Accident Recovery in Burlington

Our team coordinates care so the recovery from a motor vehicle accident addresses each region that was loaded rather than chasing the loudest symptom in isolation.

chiropractic spine icon

Chiropractic Treatment

Our chiropractors assess and treat the joint and soft tissue restrictions that develop in the neck, back, and surrounding areas after a collision. Active Release Technique is particularly useful for the muscles that tighten reflexively in the days after an accident, and Graston Technique can help when chronic restrictions persist beyond the early phase.

massage icon

Massage Therapy

Our massage therapists work on the muscular guarding that develops after a motor vehicle accident, particularly through the neck, shoulders, mid-back, and lower back. Releasing this protective tension makes it easier for the underlying tissues to heal. Acupuncture may be incorporated for pain management when needed.

physiotherapy with ball icon

Physiotherapy

Our physiotherapists build progressive rehabilitation programs that move from early-phase mobility into strengthening and capacity rebuilding for the regions affected by the collision. Shockwave therapy and laser therapy support tissue healing in slower-recovering cases, and the plan adjusts as the recovery moves through its phases.

What the Months After a Collision Tend to Look Like

Motor vehicle accident recovery moves through clear phases. Skipping ahead is the most common reason a manageable injury becomes a chronic one.

Calming the Acute Reaction

The first phase settles the most irritated tissues, reduces protective muscle guarding, and restores basic movement. Manual therapy and gentle, pain-free mobility work form most of this phase. Activity stays modified but not stopped.

Restoring Range and Tolerance

Range of motion expands and the body tolerates more daily activity without flaring. Manual therapy continues alongside introductory strengthening for the affected regions, and the focus shifts from symptom management to functional capacity.

Rebuilding Strength and Resilience

Progressive strengthening of the neck, mid-back, shoulders, and core rebuilds the support structures around the injured tissues. The regions involved start tolerating real loads rather than only low-level activity.

Reclaiming Daily Life

The final phase reintroduces the demands of work, sport, parenting, or whatever your life requires. The strengthening continues in the background as a maintenance habit, and the injured regions become as capable as they were before.

Motor Vehicle Accident Questions People Bring to the Clinic

Most people who come in after a car accident have variations of the same handful of questions. How long is this going to take, why do I feel worse a week later, and is there something serious I am missing. Here are the ones we hear most.

Every collision and every body responds differently. The answers below cover general patterns, and the right plan for your specific situation depends on what shows up during the assessment.

Helping Burlington patients move better since 2005.

The earlier the better, ideally within the first week or two. Assessing the injuries while they are fresh gives us the best read on what was loaded and how the body is responding, and it lets us start treatment before muscle guarding and stiffness become entrenched. If the accident was longer ago and you are still dealing with symptoms, an assessment is still worth booking.

Adrenaline and shock can mask significant tissue irritation in the immediate aftermath. Muscle guarding usually peaks two to four days later as the body’s protective response sets in. Pain that increases over the first few days is normal and not necessarily a sign that something serious is happening. New symptoms that were not there initially, particularly nerve-type symptoms or severe pain, should be assessed sooner rather than later.

Mild pain after a collision still benefits from assessment, even if a full course of treatment is not needed. Some injuries that feel minor at first develop into longer-term issues if the muscle guarding and joint restrictions are left to settle into chronic patterns. A short series of visits early on often prevents a bigger problem later.

The most common are whiplash and neck strain, mid-back and lower back injuries, shoulder strains, headaches related to the neck, jaw irritation, and various soft tissue injuries. We also see hip, knee, and chest wall complaints depending on the direction of impact. If your situation involves head injury symptoms, fracture concerns, or anything outside our scope, we coordinate with your physician or refer to the appropriate specialist.

A milder collision might resolve in four to eight weeks. A moderate one with multi-region involvement often takes two to four months of consistent rehabilitation. More significant collisions can take longer. Most people improve steadily with structured treatment, even if the timeline feels slower than they expected.

Sometimes, yes. The most common reason for a flare-up months after a collision is that the symptoms settled before the underlying capacity was rebuilt, and the body was still relying on guarded patterns to feel okay. Once normal demands return, the unprepared tissues protest. Following the rehabilitation through the strengthening phases tends to produce a more durable recovery.

Meet Our Practitioners

Our clinicians work collaboratively to support recovery across a wide range of conditions.

Dr. Kevin McIntyre

Dr. Kevin McIntyre B.Kin, DC

Clinic Director

Dr. Leslie McDowall

Dr. Leslie McDowall B.Sc, DC

Clinic Director

Beth Slack

Elisabeth (Beth) Slack

Registered Physiotherapist

Samantha Costabile

Samantha Costabile

Registered Physiotherapist

Deanna St. Clair

Deanna St. Clair

Registered Physiotherapist

Valerie Morris

Valerie Morris

Registered Massage Therapist

Ryan Smith

Ryan Smith

Registered Massage Therapist

Michael DeCiantis

Michael DeCiantis

Registered Massage Therapist

Maraisa (Mara) Ockenden

Allie Hoegl

Registered Physiotherapist