If you ride in Bellingham, you already know what we have here. Galbraith Mountain's trail system — over 65 miles of purpose-built singletrack ranging from flow trails to technical enduro lines — is world-class. Add Chuckanut Mountain, Lake Padden, and the surrounding Whatcom County network, and it’s easy to see why mountain bikers from across the Pacific Northwest make the trip here to ride.
As someone who lives and practices here, I love that our community has access to all of this. And as a sports chiropractor, I see what that access produces: motivated, passionate riders who push hard, and who sometimes deal with injuries that were weeks or months in the making.
Mountain biking is demanding in ways that are easy to underestimate. Unlike trail running or hiking, where your body makes constant positional adjustments with every step, riding puts you in a sustained, relatively fixed position for hours at a time. That combination of static posture and dynamic terrain creates a set of overuse and traumatic injuries that I see regularly at Advanced Sports Chiropractic and Massage.
Here’s what you need to know about the most common mountain biking injuries, why they happen, and how to protect yourself through this season and every one after it.
Mountain biking injuries fall into two broad categories: traumatic (crashes and falls) and overuse (repetitive stress from poor fit, posture, or biomechanics). Chiropractic care is particularly well-suited for the overuse side of that equation, though manual therapy and soft-tissue treatment also play an important role in recovery from crash-related strains and sprains.
On the overuse side, the key issue is position. A mountain biker spends hours in a posture that places the lumbar spine in sustained flexion, the cervical spine in extension (to see ahead on the trail), and the shoulders, wrists, and hands under constant vibration and load. Research published in Sports Medicine found that overuse injuries account for the majority of non-crash-related conditions in cyclists, including neck pain, low back pain, knee pain, and nerve entrapments at the wrist (Dettori & Norvell, 2006).
The pedaling motion itself creates repetitive stress across the knee and hip. With each revolution, the IT band, patellar tendon, and hip abductors are loaded and unloaded in a pattern that, over thousands of repetitions per ride, can create chronic irritation if fit or biomechanics are off.
On the traumatic side, falls tend to produce upper body injuries — particularly to the shoulder, wrist, and collarbone — that are far less common in running-based sports. Research on competitive off-road bicycle racing has documented significantly higher injury rates per hour in downhill events than in cross-country formats, underscoring how consequential crashes on technical terrain can be (Kronisch et al., 1996). Technical descending on trails like those at Galbraith demands split-second directional control, and when that’s exceeded, crashes at speed can produce significant soft-tissue damage.
Low Back Pain / Lumbar Flexion Syndrome: This is the most common complaint I see in mountain bikers, and the mechanism is straightforward: hours of sustained lumbar flexion, especially on longer rides or during long climbs, creates significant compressive and shear stress on the lumbar discs and facet joints. Weak core muscles and tight hip flexors compound the problem considerably. Research has found that low back pain is among the most prevalent overuse conditions in cyclists, affecting a substantial portion of recreational riders at some point in their riding career (Mellion, 1991). In clinic, I address this with lumbar joint mobilization to restore proper segmental movement, myofascial release to address the erector spinae and quadratus lumborum, and targeted core activation work that carries over directly to time in the saddle.
Neck Pain and Cervicogenic Headaches: The extended cervical position required to keep your head up on the trail, particularly in an aggressive riding position, places sustained load on the upper cervical joints and posterior neck musculature. Over a long ride, this creates a predictable pattern of suboccipital tightness, restricted upper cervical mobility, and headaches that begin at the base of the skull and radiate forward. Cervicogenic headaches are extremely responsive to upper cervical chiropractic manipulation and soft-tissue work. Riders who suffer from end-of-ride or post-ride headaches almost always have upper cervical restriction that is identifiable and treatable.
IT Band Syndrome and Knee Overuse: Cyclists are not immune to IT band issues. While it presents differently than in runners — typically as lateral knee pain with a grinding or catching sensation rather than the acute burning of a runner’s ITBS — the underlying mechanism is similar: hip abductor weakness, particularly of the gluteus medius, forces the IT band to carry load it isn’t designed for. Saddle height is also a major contributor; a saddle that’s too low increases knee flexion angle with every pedal stroke, dramatically increasing patellofemoral and IT band stress (Wanich et al., 2007). Addressing this pattern requires both soft-tissue treatment and fit assessment.
Handlebar Palsy (Ulnar Nerve Compression): This is one of the more insidious overuse conditions in mountain biking. The ulnar nerve, which runs along the outer palm, can become compressed between the handlebar and the hypothenar muscles during long rides, particularly when riders are pushing hard into the bars on technical sections or climbing. Numbness and tingling in the ring and pinky fingers, and weakness in the hand, are the hallmarks. Wrist position, glove padding, and bar setup all contribute, but a cervical nerve root assessment is also important, because symptoms can originate proximally at the neck rather than locally at the wrist.
Shoulder Injuries from Falls: The shoulder is the most commonly injured joint in mountain bike crashes. AC (acromioclavicular) joint sprains occur when a rider goes over the bars or lands on the point of the shoulder. Rotator cuff strains, particularly of the supraspinatus, are also common. Chiropractic care for shoulder injuries focuses on restoring glenohumeral and scapular mechanics through joint mobilization and Active Release Technique (ART), which is particularly effective for the soft-tissue component of post-crash shoulder dysfunction.
Some muscle soreness after a hard effort is normal. But certain symptoms warrant prompt evaluation; the sooner we address them, the faster the recovery:
That last point matters particularly. Compensatory movement patterns develop quickly and can transfer load to areas of the body that aren’t prepared for it, turning one problem into several. If you’re adjusting how you sit, grip the bars, or weight the bike to avoid pain, it’s time to come in.
Galbraith Mountain is one of the genuine treasures of this community, and I want every rider who uses it to be able to keep using it for decades. The injuries I see in mountain bikers are almost never mysterious. They follow predictable patterns, and most respond very well to appropriate care. Whether you’ve just had a crash or you’ve been managing a nagging overuse issue for months, I’d love to help you sort it out.
If you want to schedule an assessment, visit advancedsportschiropractic.com or give us a call. I’m happy to look at your movement, your riding position (bring your fit data if you have it), and what we can do to keep you riding well.
— Dr. Bob Curtis, DC, CCSP
Advanced Sports Chiropractic and Massage | Bellingham, WA
Q: What are the most common mountain biking injuries?
Mountain biking injuries fall into two main categories: overuse and traumatic. Overuse injuries include low back pain, neck pain and headaches, IT band syndrome, knee overuse, and handlebar palsy (ulnar nerve compression). Traumatic injuries from crashes most commonly affect the shoulder (AC joint sprains, rotator cuff strains), wrist, and collarbone. As a sports chiropractor, I treat all of these, but overuse injuries are particularly well-suited for chiropractic care because they involve joint restriction and soft-tissue dysfunction that respond directly to manual treatment.
Q: Can a chiropractor help with mountain biking injuries?
Yes. Chiropractic care is highly effective for the joint and soft-tissue injuries common in mountain bikers. At Advanced Sports Chiropractic and Massage, I use spinal and extremity joint mobilization to restore proper mechanics, Active Release Technique (ART) to address muscle and tendon adhesions, and Graston Technique for fascial restrictions. These approaches address the structural root causes of cycling-related pain.
Q: Why does my low back hurt after mountain biking?
Low back pain in mountain bikers almost always has multiple contributing factors: sustained lumbar flexion in the riding position, hip flexor tightness that increases anterior pelvic tilt, weak core muscles that don’t adequately support the spine under load, and often bike fit issues that put excess stress on the lumbar region. Saddle height and fore/aft position have a significant effect on how load is distributed through your spine. In clinic, I assess all of these factors and prioritize the most impactful interventions first.
Q: How do I prevent neck pain and headaches from mountain biking?
The most common causes are limited thoracic spine mobility (which forces the neck to extend more to see the trail), upper cervical joint restriction, and weak deep cervical flexors. Daily thoracic extension mobility work, cervical mobility exercises, and periodic chiropractic treatment to address upper cervical restrictions are the most effective prevention strategies. Bar height and stem length also matter. A more upright position reduces neck strain, though it involves trade-offs in handling on technical terrain.
Q: What is handlebar palsy and how is it treated?
Handlebar palsy is compression of the ulnar nerve at the palm, caused by sustained pressure on the handlebars. It presents as numbness, tingling, and sometimes weakness in the ring and pinky fingers. Treatment involves nerve gliding mobilization, ruling out cervical nerve root involvement, and modifying the contributing factors: glove padding, grip position, handlebar width, and riding posture. Most cases resolve with appropriate treatment and equipment modifications.
Q: When should I see a doctor after a mountain biking crash?
Seek immediate care for any head injury, loss of consciousness, severe shoulder pain after landing on the shoulder (especially if it looks deformed), wrist pain after a fall on an outstretched hand, or any neurological symptoms such as numbness or weakness in the arms or legs. For milder post-crash soreness like strains, sprains, aching muscles, I can assess and treat these in clinic. The key is getting an evaluation promptly rather than assuming everything will resolve on its own.
Q: Is IT band syndrome common in mountain bikers?
Yes. While IT band syndrome is often associated with running, cyclists experience it too, typically as lateral knee pain that builds over the course of a ride. In cyclists, it is strongly associated with saddle height that’s too low and hip abductor weakness. Treatment addresses both the local tissue irritation and the upstream causes: hip strengthening, IT band and TFL soft-tissue work, and bike fit corrections. Resolution is often faster in cyclists than in runners, because reducing the aggravating load is more straightforward.
Q: How does chiropractic care help with shoulder injuries from cycling crashes?
Post-crash shoulder care focuses on restoring full glenohumeral and scapular mechanics, which are almost always disrupted after an AC joint sprain or rotator cuff strain. I use joint mobilization to restore proper shoulder and upper thoracic movement, Active Release Technique to address soft-tissue adhesions that form during healing, and a graduated loading protocol to restore strength and stability. Early treatment is important; the longer dysfunction persists, the more compensatory patterns develop in the neck and opposite shoulder.
Dettori, N. J., & Norvell, D. C. (2006). Non-traumatic bicycle injuries: A review of the literature. Sports Medicine, 36(1), 7–18. https://pubmed.ncbi.nlm.nih.gov/16445308/
Kronisch, R. L., Pfeiffer, R. P., & Chow, T. K. (1996). Acute injuries in cross-country and downhill off-road bicycle racing. Medicine & Science in Sports & Exercise, 28(11), 1351–1355. https://pubmed.ncbi.nlm.nih.gov/8933484/
Mellion, M. B. (1991). Common cycling injuries: Management and prevention. Sports Medicine, 11(1), 52–70. https://pubmed.ncbi.nlm.nih.gov/2011683/
Wanich, T., Hodgkins, C., Columbier, J. A., Muraski, E., & Kennedy, J. G. (2007). Cycling injuries of the lower extremity. Journal of the American Academy of Orthopaedic Surgeons, 15(12), 748–756. https://pubmed.ncbi.nlm.nih.gov/18063715/