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Conditions We Treat

Shoulder Pain
& Rotator Cuff Injuries

Drug-free, hands-on relief for rotator cuff injuries, shoulder impingement, and chronic shoulder pain — addressing the root cause so you can lift, sleep, and move freely again.

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✓ 88+ Five-Star Reviews
✓ No Drugs or Surgery
✓ 14+ Years Treating Shoulder & Rotator Cuff Injuries
✓ Serving San Mateo Since 2010
Shoulder Pain & Rotator Cuff Injuries

Real relief, real causes —
not just masked symptoms

Shoulder pain is one of the most limiting injuries a person can deal with. It affects your sleep, your ability to lift and reach, your workouts, and even simple things like getting dressed. At High Amplitude Health in San Mateo, Dr. John Blenio has helped hundreds of people recover from rotator cuff injuries, frozen shoulder, impingement, and chronic shoulder dysfunction — without surgery or medication.

Whether you're a CrossFit athlete, a baseball pitcher, a weekend warrior, or someone who simply woke up one day unable to raise their arm, the approach is the same: find the true source of the problem and fix it with hands-on care. Dr. Blenio combines chiropractic adjusting, Active Release Therapy, and Myofascial Therapy to target tight fascia, scar tissue, inflammation, and nerve irritation at their origin.

Rather than just managing pain, we work directly on the rotator cuff muscles, scapular stabilizers, and surrounding soft tissues — restoring mobility, reducing inflammation, and building the foundation for lasting relief. Most patients describe the sessions as "hurts so good" — deeply effective without ever being uncomfortable.

KT taping for shoulder and rotator cuff injury at High Amplitude Health San Mateo
No Surgery Required
Chiropractic · ART · Myofascial therapy
How We Treat It

A complete approach for
shoulder pain & rotator cuff injuries

◎
Active Release Therapy (ART)
ART is the cornerstone of Dr. Blenio's shoulder treatment. It targets the specific muscles, tendons, and fascia causing pain or limiting motion — breaking up scar tissue, improving circulation, and restoring healthy movement patterns throughout the rotator cuff.
Backed by the Journal of Sport Rehabilitation: Active Release Technique improves both patient and clinician outcomes for shoulder conditions. Especially effective for impingement, tears, and overuse syndromes.
◈
Myofascial release
Myofascial therapy targets the connective tissue that wraps around shoulder muscles and joints. When this tissue tightens from injury or overuse, it restricts motion and causes pain. Sustained manual pressure releases adhesions and restores full range of motion.
Research in the Journal of Bodywork and Movement Therapies confirms trigger point therapy significantly reduces shoulder pain — and results from the Journal of Strength and Conditioning Research show myofascial release improves range of motion in athletes.
⟳
Chiropractic adjusting
Shoulder pain often involves restricted motion in the glenohumeral joint, AC joint, or the surrounding thoracic and cervical spine. Precise adjustments restore proper joint mechanics, reduce inflammation, and remove nerve irritation that keeps the shoulder locked up.
Particularly effective when shoulder impingement or limited overhead range of motion has a joint restriction component that soft tissue work alone can't fully address.
▷
Rehab exercises & movement retraining
Hands-on treatment gets you out of pain — but the right corrective exercises ensure it stays that way. Dr. Blenio prescribes targeted shoulder rehab to address neuromuscular imbalances, strengthen the rotator cuff, and retrain the movement patterns that led to injury in the first place.
This step is what separates temporary relief from lasting resolution. Without rebuilding the supporting muscles and movement quality, shoulder problems tend to return within weeks.
◇
Assisted stretch therapy
Tight posterior capsule and rounded shoulder posture are common contributors to impingement and rotator cuff stress. Guided stretching opens the shoulder joint, restores external rotation, and reduces the chronic loading that wears down the cuff over time.
Especially valuable for desk workers and overhead athletes whose daily posture continually shortens the anterior shoulder structures — making the joint more vulnerable to impingement and tears.
▸
Percussion therapy
Targeted vibration calms the hyperactive muscles around the shoulder girdle — the upper traps, rhomboids, and posterior rotator cuff — reducing guarding, improving circulation, and accelerating tissue recovery between sessions.
Particularly effective for patients with chronic muscle spasm around the shoulder who can't initially tolerate deeper manual work, allowing treatment to progress faster.
Who It Helps

What's causing
your shoulder pain?

Shoulder pain and rotator cuff injuries have many causes — and pinpointing the right one is the key to effective treatment. Here are the most common conditions we see and treat every day.

01

Rotator cuff tears & impingement

The rotator cuff is four muscles working together to stabilize and move your shoulder. Tears — partial or full — and impingement syndrome (where tendons get pinched during arm movement) are among the most common shoulder injuries we treat. ART and myofascial therapy can resolve these without surgery in many cases.

02

Frozen shoulder (adhesive capsulitis)

Frozen shoulder develops when the joint capsule thickens and tightens, severely restricting range of motion. It's painful, frustrating, and often mismanaged with rest alone. Hands-on myofascial work and progressive mobilization are among the most effective treatments available.

03

Biceps tendonitis

Inflammation of the biceps tendon causes pain at the front of the shoulder that worsens with lifting, overhead activity, or even turning the palm upward. ART directly addresses the tendon and surrounding tissue — reducing inflammation and restoring pain-free function.

04

Shoulder strains & sprains

Whether from a single incident or accumulated overuse, strained muscles and sprained ligaments in the shoulder respond well to soft tissue therapy and guided rehabilitation. Early treatment prevents acute injuries from becoming chronic problems.

05

Shoulder dislocations & post-dislocation instability

After a dislocation, the surrounding muscles and connective tissue often remain compromised — leaving the joint vulnerable to re-injury. Targeted rehab and soft tissue work rebuild stability and confidence in the shoulder.

06

Sports & athletic overuse injuries

CrossFit athletes, swimmers, baseball pitchers, and tennis players all place repetitive high-demand loads on the shoulder. Dr. Blenio treats both the injury and the movement pattern that caused it — getting athletes back to training faster and more durably than rest alone.

07

General stiffness & chronic shoulder dysfunction

Not all shoulder pain has a clear diagnosis. Many patients come in with persistent stiffness, aching, or reduced range of motion that's been building for months or years. A thorough assessment identifies the contributing factors — and treatment addresses all of them together.

You don't have to
live with this pain.

Most shoulder patients see significant improvement within 5 to 10 sessions — often fewer. Dr. John targets the cause, not just the symptoms, which is why results are faster and longer-lasting than with standard approaches.

3–6
Average sessions to resolution
88+
Five-star Google reviews

Serving San Mateo, Burlingame, Foster City, Redwood City, Belmont & surrounding areas since 2010.

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About Dr. John Blenio

14 years treating
shoulder pain & rotator cuff injuries

Dr. John Blenio has been treating shoulder pain and rotator cuff injuries in San Mateo for over 14 years. His approach goes well beyond what a standard chiropractor offers — combining Active Release Therapy, myofascial release, chiropractic adjusting, and targeted rehab exercises into a single, integrated plan that addresses every layer contributing to your shoulder dysfunction.

Shoulder injuries are rarely just one thing. They typically involve a combination of muscular tightness, fascial adhesions, joint restriction, and compensatory movement patterns that have built up over time. Dr. John's training allows him to assess and treat all of these simultaneously — rather than addressing them in isolation or sending you to three different providers.

Whether your shoulder pain started from a specific incident or has been creeping up over months of overuse, the goal is the same: identify the true cause, correct it with hands-on care, and give you the tools to keep it from coming back.

✓
Active Release Therapy (ART) Certified Targeting rotator cuff injuries, tendonitis, and fascial adhesions
✓
Myofascial & Trigger Point Therapy Specialist Releasing scar tissue, muscle spasm, and fascial restrictions in the shoulder
✓
Shoulder Rehab & Sports Injury Specialist Rebuilding rotator cuff strength and movement quality for lasting results
Dr. John Blenio treating shoulder pain at High Amplitude Health San Mateo
Frequently Asked Questions

Common questions about
shoulder pain & rotator cuff injuries

Can chiropractic care treat a rotator cuff tear without surgery? +
In many cases, yes. Not all rotator cuff tears require surgery. Partial tears and many full-thickness tears in non-surgical candidates respond very well to conservative care — particularly ART and myofascial therapy combined with targeted rehab. Dr. Blenio will give you an honest assessment at your first visit and let you know whether your injury is appropriate for conservative treatment or whether imaging and a surgical consult would be worthwhile.
How many sessions will I need? +
Most patients see significant improvement within 5 to 10 sessions — often fewer for acute injuries. Because Dr. Blenio targets the root cause rather than just managing symptoms, results tend to come faster and last longer than with standard physical therapy approaches. He'll give you a realistic estimate based on your specific condition at your first visit — no open-ended treatment plans.
What is Active Release Therapy and how does it help the shoulder? +
ART is a hands-on technique that identifies and releases specific muscles, tendons, and fascial structures that are causing pain or restricting movement. For the shoulder, this typically means working on the rotator cuff muscles (supraspinatus, infraspinatus, teres minor, subscapularis), the biceps tendon, the pectorals, and the posterior capsule. It's precise, targeted, and significantly more effective than general massage or stretching for shoulder-specific conditions.
Is the treatment painful? +
Patients consistently describe sessions as "hurts so good" — there's a therapeutic sensation as tight tissues are released, but the work is never uncomfortable. Dr. Blenio always adjusts pressure and technique to your tolerance level, and communication is actively encouraged throughout. Most patients leave feeling noticeably looser and more mobile than when they arrived.
Can you help with frozen shoulder? +
Yes — frozen shoulder (adhesive capsulitis) is one of the conditions that responds particularly well to myofascial therapy and progressive manual mobilization. The standard medical approach of rest and anti-inflammatories often prolongs the condition. Hands-on work to break up the adhesions in the joint capsule, combined with guided mobility exercises, can significantly shorten recovery time and restore full range of motion.
I'm an athlete. Can I keep training during treatment? +
In most cases, yes — with appropriate modifications. Dr. Blenio understands athletic training and won't simply tell you to stop everything. He'll identify which activities are safe to continue, which need to be temporarily modified, and what you can do to support your recovery between sessions. The goal is to keep you as active as possible while healing effectively.
My shoulder pain keeps coming back after treatment elsewhere. Can you help? +
Recurring shoulder pain almost always means the root cause was never fully addressed. Whether it's scar tissue that reformed, a movement pattern that was never corrected, or a neuromuscular imbalance that wasn't treated, Dr. Blenio will identify the specific drivers and build a plan that addresses all of them — not just the ones that are easiest to treat. Many patients with years of recurring shoulder problems find lasting resolution here.

Shoulder pain doesn't have to
be your new normal.

Join hundreds of San Mateo patients who've found lasting relief from rotator cuff injuries, frozen shoulder, and chronic shoulder pain — without drugs, injections, or surgery.

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Or call / text us: 650-735-1716