There's a frustrating pattern I see regularly in my San Mateo practice. An athlete gets injured — a knee, a shoulder, a hamstring, a back. They rest. They do some stretching. Maybe they see a provider, get some treatment, and start to feel better. They return to training. And then, a few weeks or months later, the same injury comes back. Sometimes worse than before.

It's not bad luck. It's not bad genetics. In almost every case, there are specific, identifiable reasons why the injury keeps recurring — and most of them are fixable. Here are the five I see most often.


1
You Returned to Full Intensity Too Fast

This is the number one reason sports injuries keep coming back — and it's almost always the athlete's own eagerness working against them. After an injury starts to feel better, the natural impulse is to get back to normal training as quickly as possible. That impulse is the enemy of full recovery.

Injured tissue heals in stages. Even when pain decreases significantly, the tissue isn't yet strong enough to handle the forces of full-intensity training. The capacity of the tissue lags behind the perception of recovery. Returning too fast means asking tissue that isn't ready to absorb forces it can't yet handle — and that's exactly when re-injury occurs.

The right approach is a slow, deliberate return-to-sport progression:

WeekIntensityDurationKey signal
Week 1 back50%50% of normalNo pain during or after
Week 2 back70%70% of normalContinued improvement, no setback
Week 3+ProgressiveProgressiveListen to your body at each step

The athlete should be listening to their body with each progression. If week two brings any regression in symptoms, pull back. Getting back to full sport intensity takes time — and the athletes who honor that timeline are the ones who stop re-injuring themselves.

2
The Tissue Wasn't Actually Ready

Pain-free doesn't mean healed. This is one of the most important distinctions in sports rehabilitation — and athletes get it wrong constantly.

Athletes have a high pain tolerance by nature. When the pain of an injury drops from a 7 to a 2, the athlete mentally compares those two numbers and concludes: things are much better, therefore I can push harder. That logic is understandable but dangerous. The tissue may have calmed down enough that pain is no longer a strong signal — but it hasn't yet developed the tensile strength, elasticity, and neuromuscular coordination needed to handle training load.

When an athlete loads tissue that isn't prepared for increased forces, two things happen. First, microscopic tissue strains occur — small tears in muscle, tendon, or fascial tissue that wouldn't happen in fully healed tissue. Second, an inflammatory response commences, which lays down more scar tissue over what's already there. Now the athlete has more scar tissue than before, less elasticity, and a nervous system that's been sensitized by repeated injury — setting the stage for the next flare-up.

The bar for returning to training should not be "my pain went from a 7 to a 2." It should be "I have progressively demonstrated that my tissue can handle the specific demands of my sport." Those are very different standards.

3
The Root Cause Is Somewhere Else

Many recurring sports injuries aren't caused by weakness or fragility at the injury site. They're caused by a biomechanical imbalance somewhere else in the body that keeps creating excessive stress on the same area.

A classic example: a runner with persistent knee pain who keeps re-injuring the IT band despite rest and stretching. The knee is where the pain is. But the root cause is often tight hip flexors and weak glutes that alter the mechanics of the entire leg during the running stride — creating abnormal compression at the lateral knee on every footstrike. Treat the knee in isolation and the pain comes back. Address the hip mechanics and the knee resolves — because the source of stress has been removed.

Biomechanical imbalances can also develop as a result of a past injury that was never fully rehabbed. After an injury, the body compensates — other muscles take over to protect the injured area, movement patterns change, asymmetries develop. If those compensations aren't corrected, they create new stress patterns that eventually produce new or recurring injuries in other parts of the chain.

What to look for

If you have a recurring injury on one side of your body — one knee, one shoulder, one hip — always ask: is there a tightness or weakness somewhere else in the chain that's creating uneven loading? The answer is usually yes.

4
You're Only Stretching

Stretching is good. But in my experience, it's one of the most overrated tools in an athlete's recovery and prevention toolkit — and relying on it too heavily is a reliable path to recurring injury.

Here's the physiology behind why. Muscle tension and relaxation are regulated by three distinct types of receptors in and around muscle tissue, each responding to a different stimulus:

Stretch Receptors

Detect changes in muscle length. Stimulated by passive stretching — signals muscles to lengthen or contract.

Activated by: Stretching

Vibratory Receptors

Respond to oscillation and vibration. Help regulate muscle tone through a different neurological pathway.

Activated by: Foam rolling

Pressure Receptors

Respond to sustained compression. Release tension in specific areas of chronically tight tissue.

Activated by: Foam rolling + massage ball

All three receptor types work together to modulate muscle contraction and relaxation. If you only stretch, you're only activating one type. The other two go unstimulated — and the full picture of what's keeping your muscles tight doesn't get addressed.

A foam roller, used properly, activates all three simultaneously — stretch, vibration, and pressure. That's why foam rolling before and after training tends to produce better results than stretching alone for injury prevention and recovery. It's not replacing stretching — it's completing the circuit that stretching alone leaves open.

The same principle is why Active Release Therapy works so well. ART applies precise directed pressure while the athlete actively moves the tissue — stimulating all three receptor systems simultaneously with clinical specificity.

5
You Don't Have an Off-Season

This one catches a lot of dedicated athletes off guard. Many train six or seven days a week, year-round — and never give their bodies a genuine rest period. The result is an accumulation of micro-damage that never fully resolves, a nervous system that stays in a state of chronic load, and tissue that keeps breaking down faster than it can repair.

Professional athletes train at extraordinarily high intensity almost year-round — but what they have that recreational athletes don't is a full staff of recovery specialists: massage therapists, ART providers, chiropractors, movement coaches, strength coaches, physical therapists. Their bodies are constantly being maintained at that elite level. Without that support structure, training year-round without rest leads to a tissue bank account that's perpetually overdrawn.

My recommendation for any serious recreational athlete: take a true off-season once per year — at minimum three weeks, ideally four to six. Let the body genuinely rest and regenerate. Come back to training slowly and progress deliberately. The first few weeks back often feel surprisingly strong — because the body used the recovery period to repair tissue that had been chronically broken down.

What professional athletes have that you don't

Elite athletes have personal trainers, massage therapists, chiropractors, movement specialists, and ART providers keeping them healthy. For my patients, I can be all of those things. Preventive ART, myofascial therapy, chiropractic adjustments, and occasional exercise therapy appointments can do for an active person what a full professional sports medicine staff does for a pro athlete — at a fraction of the cost, and a fraction of the injury rate.


A Note on Tennis Elbow

If there's one recurring sports injury I see most consistently, it's tennis elbow. It's extremely common, it has a well-established pattern of recurrence, and — importantly — it's very resolvable when addressed correctly.

Tennis elbow keeps coming back almost always for two reasons working together: technique problems that keep overloading the lateral elbow tendons, and incomplete soft tissue rehab that leaves scar tissue and adhesions in the forearm tendons. Address the technique through coaching and address the tissue through ART, and tennis elbow resolves consistently. Miss either one and it comes back.

The same two-factor pattern — mechanical fault plus incomplete tissue healing — underlies most recurring sports injuries. That's why the most effective approach always combines hands-on tissue work with movement assessment and progressive rehab.

"Pain-free is not the same as healed. The athletes who understand that distinction — and honor it in their return to training — are the ones who stop re-injuring themselves for good."
— Dr. John Blenio, DC · High Amplitude Health, San Mateo

The Bottom Line

If your sports injury keeps coming back, it's almost never because you're unlucky or because your body is fragile. It's because one or more of these five factors is still in play. The good news is that every one of them is addressable — with the right approach, the right tools, and the right timeline.

At High Amplitude Health, ART, chiropractic, and exercise rehabilitation are combined into a three-phase recovery protocol that addresses tissue quality, movement mechanics, and progressive strength — in that order. It's the same approach that helps professional athletes stay healthy at a high level, applied to patients in San Mateo who want to train hard and stay pain-free.

If you've been dealing with a sports injury that keeps coming back, book an appointment and let's find out exactly what's driving the recurrence. Same-week appointments available. Call or text 650-735-1716.