Back to the Box.
Better Than Before.
Sports chiropractic and supervised strength rehabilitation for CrossFit athletes in Walnut Creek.
Dr. Douglas Cancel understands the lifts, gymnastics, volume, fatigue, and training demands that make these injuries different. The goal is straightforward: get the problem under control, rebuild what needs to be ready, and get you back to training.
Start Your Recovery →
Treat the Factors Behind the Injury — Not Just the Pain
CrossFit asks a lot of the body. That is part of the appeal.
When something starts interfering with training, the useful question is not whether CrossFit is “good” or “bad.” It is what is hurting, what the movement is asking of it, and what has to happen before you can trust it under load again.
At Performance Sport Care in Walnut Creek, the injury is evaluated in the context of how you actually train. Hands-on care may help settle pain or restricted motion. Supervised strength rehabilitation is there for the part that comes next: rebuilding enough capacity to return to the box.
Why CrossFit Athletes Get Hurt
CrossFit injuries are not all caused by the same thing, but familiar patterns show up repeatedly: technique can change under fatigue, load or volume can outpace current capacity, recovery can fall behind training, and a previous injury may not yet tolerate what the athlete is asking it to do.
- Technique breakdown under fatigue — form that holds for the first rounds but degrades as the workout goes on.
- Load progression that outpaces tissue capacity — adding weight or reps faster than tendons, joints, and connective tissue can adapt.
- Training volume and density — too many hard sessions, too close together, without planned variation.
- Inadequate recovery — insufficient rest, sleep, or deloading between intense efforts.
- A previous injury that never fully regained capacity — prior injury can raise the likelihood of future problems when training demands return.
Those factors are useful because many can be changed without abandoning the sport. The important part is deciding which ones actually matter in the athlete in front of us. That is what the examination and the rehabilitation floor are for.
CrossFit Injuries Are Movement-Specific — and So Is the Fix
General "back pain" or "shoulder pain" advice does not help a CrossFit athlete. The movements that reproduce or expose the problem have to be understood, because they tell you what to examine, what to modify, and what to rebuild. Dr. Cancel evaluates the injury against the actual demands of the sport:
- Shoulder — overhead pressing, snatches, jerks, and high-rep kipping pull-ups and ring work load the rotator cuff and labrum in extreme, repetitive positions. Rotator-cuff tendinopathy and impingement are the most common results.
- Lower back — deadlifts, heavy cleans, and high-rep squatting place the lumbar spine under repeated load, especially as bracing and hip mechanics fade with fatigue.
- Knee — high-volume squatting, box jumps, and Olympic lifts stress the patellar tendon and the joint when control and tracking break down.
- Wrist & elbow — cleans, front-rack positions, snatches, and barbell cycling load these joints in ways most general care never accounts for.
Knowing the movement gives the examination context and helps determine what the athlete needs to tolerate again. It informs which tissue is examined, which positions are temporarily modified, and how the athlete is progressed back to full barbell work.
Heavy and high-rep squatting is one of the most common sources of lower-back complaints in the box — though depth itself is usually not the culprit. Our guide explains whether deep squats are bad for your lower back and how to keep loading them safely.
Why CrossFit Injuries Keep Coming Back
When pain settles, it is tempting to assume the problem is finished. CrossFit has a way of testing that assumption quickly.
Symptoms can improve before the shoulder, back, knee, tendon, or other injured area is ready for full training volume and load. A recurrence may mean capacity was not fully rebuilt, the return progressed too quickly, or another contributing factor still matters.
That is why we do not judge readiness only by how you feel on the treatment table. The standard is what the injured area can tolerate when you start asking CrossFit-level questions of it again.
From Treatment Back to Training
The work usually moves through four practical stages. They can overlap, and not every athlete needs every tool.
- 1. Understand what we are dealing with. We look at the painful area, the movement that exposes it, recent training load, relevant strength and mobility findings, and what you need to return to.
- 2. Settle what is getting in the way. When appropriate, chiropractic treatment, joint work, soft-tissue treatment, or other hands-on care can reduce pain or restricted motion enough to make useful movement easier.
- 3. Rebuild capacity. Supervised strength work is progressed in the same facility, from light controlled exercise to meaningful loading when the athlete and the injury require it.
- 4. Work back toward CrossFit. Range, resistance, repetition, speed, volume, complexity, and fatigue are progressed toward the demands you actually intend to face.
Running through all of it is an instructive, educational component: when technique, load, or recovery changes are useful, they are explained so you understand what you are doing and why. That is the difference between being treated and being equipped.
CrossFit Is Demanding. It Is Not Uniquely Dangerous.
Published injury rates generally place CrossFit in a range comparable with other strength sports.1,2,3 That is useful context, but it is not why most injured CrossFit athletes come here.
They come because something is interfering with training and they want someone who understands the sport, understands the injury, and has a plan to get them back.
References. 1. Mehrab M, et al. Risk Factors for Musculoskeletal Injury in CrossFit: A Systematic Review. Int J Sports Med, 2023. 2. Klimek C, et al. A 4-Year Analysis of the Incidence of Injuries Among CrossFit-Trained Participants. Orthop J Sports Med, 2018. 3. Summitt RJ, et al. Shoulder Injuries in Individuals Who Participate in CrossFit Training. Sports Health, 2016.
Why CrossFit Athletes Choose Dr. Douglas Cancel
Dr. Douglas Cancel has practiced in California since 1983 and is a former National-level competitive bodybuilder and lifelong strength athlete. You do not have to explain to him why getting back to a heavy clean, a kipping pull-up, a squat cycle, or a five-day training week matters.
- Care is built around the demands of the sport, not around a generic adjustment schedule.
- The rehabilitation facility is equipped for real progressive loading, not just low-level exercise.
- Success is measured by what you can do again — not only by how you feel on the treatment table.
- When training changes are useful, they are explained in the context of getting you back to CrossFit, not taking CrossFit away from you.
Performance Sport Care serves CrossFit athletes from Walnut Creek, Lafayette, Danville, Concord, Pleasant Hill, and the surrounding Contra Costa County communities.
Start Your Recovery →What makes Dr. Cancel different from a regular chiropractor for CrossFit injuries?
Performance Sport Care evaluates the injury in the context of how you actually train. Dr. Cancel looks at the painful area, the movements that provoke it, your recent training load, relevant strength and mobility findings, and what you need to return to. Treatment may include hands-on care, training modification, and supervised progressive strength rehabilitation in the same facility. Adjustments are one option, not the entire plan.
What actually causes most CrossFit injuries?
There is no single cause that explains most CrossFit injuries. Common contributors can include rapid changes in training load, technique that deteriorates under fatigue, inadequate recovery, and previous injury. The relevant factors differ from athlete to athlete. The purpose of the evaluation is to determine which of those factors, if any, appear important in your case rather than assuming the cause in advance.
Is CrossFit more dangerous than other types of training?
Published studies generally report CrossFit injury rates in a range comparable with other strength sports, although estimates vary among studies and populations. That does not make CrossFit risk-free. Sensible progression, appropriate technique, recovery, and attention to symptoms all matter, particularly when training intensity or volume changes quickly.
Should I rest completely when I have a CrossFit injury?
Not necessarily. Some injuries can be trained around with temporary changes in load, range, exercise selection, or volume. Others require genuine restriction or additional medical evaluation. Dr. Cancel’s job is to determine what you can continue, what should be modified, and what should temporarily stop.
Why do CrossFit injuries keep coming back?
Recurring symptoms can have several explanations: returning to full training before capacity has been rebuilt, continuing a provocative loading pattern, incomplete rehabilitation, or a diagnosis that deserves another look. We reassess the current problem rather than assuming every recurrence has the same cause.
Can Dr. Cancel treat a CrossFit shoulder injury without surgery?
Many overuse and atraumatic shoulder problems can begin with conservative care, including appropriate exercise and progressive loading. An acute traumatic injury with major weakness, recurrent instability, suspected fracture, significant neurological findings, or another concerning presentation may require imaging or orthopedic evaluation. Dr. Cancel screens for those distinctions during the evaluation.
Do you treat the specific movements that hurt me — kipping pull-ups, snatches, high-rep squats?
Yes. The movement matters because it tells us what demands reproduce the problem. A shoulder that hurts during kipping or overhead work, a back that hurts during heavy cleans, and a knee that hurts during high-volume squatting each need to be evaluated in the context of that movement, the athlete’s loading history, and the clinical examination. Those findings help determine what should be modified and how the athlete should progress back to full training.
What does CrossFit injury treatment at Performance Sport Care actually involve?
It depends on the findings. Care may include chiropractic or other hands-on treatment for pain or restricted motion, temporary training modification, specific exercise, and supervised progressive strength rehabilitation. The plan changes as the athlete improves and should have a clear return-to-training goal.
I’ve already tried chiropractic, physical therapy, or rest without lasting results. Why would this be different?
Previous treatment not producing the result you wanted does not tell us why. Dr. Cancel starts with a fresh evaluation, reviews what you have already tried, and determines what the current findings support. Sometimes a different rehabilitation plan makes sense. Sometimes more diagnostic information or another specialist is the better next step.
How long will I be out of CrossFit while injured?
That depends on the diagnosis and severity. Some athletes can continue modified training immediately. Others need a period away from particular movements or loads. Dr. Cancel will give you a more useful timeline after the evaluation and adjust it according to your response and the milestones required for safe return to full training.
Does Performance Sport Care work with competitive CrossFit athletes?
Yes. Competitive and recreational CrossFit athletes are both treated. The rehabilitation plan is matched to the athlete’s training demands, competition schedule when relevant, and the level of function they need to regain.
Where is Performance Sport Care located, and do you accept insurance?
Performance Sport Care is located at 1776 Ygnacio Valley Road, Suite 106, Walnut Creek, CA 94598. Call (925) 945-1155. We serve Walnut Creek, Lafayette, Danville, Concord, Pleasant Hill, and greater Contra Costa County.
The office is a short walk from John Muir Medical Center, next door to the Walnut Creek Tennis Club, and just steps from Heather Farm Park, with convenient on-site parking. Ygnacio Plaza and Sports Basement are directly across the street.
Performance Sport Care is an out-of-network provider. Payment is due at the time of service, and we electronically submit the claim to your insurance plan so that any reimbursement available under your benefits is paid directly to you. Coverage and reimbursement vary by plan.
If CrossFit is part of your life, the goal is to get you back to it, not keep you in treatment.
We work toward the demands you need to meet, end the current episode of care when the job is done, and we’ll be ready to help when you need us again.