healthPi is becoming RECURIO – Dr. Gruther & Team Dear patients, the former practice of Dr. Gruther / healthPi is now RECURIO – Dr. Gruther & Team. Your location and contact persons remain the same – the medical focus is becoming even clearer: We specialize in precise medical diagnostics and physician-led, structured therapy programs. RECURIO stands for "return to strength" – through medicine that understands the causes and implements therapy in a structured manner.

What matters most

Many people wait until pain is zero.

That often backfires.

In tendinopathy, appropriately dosed load is often part of the treatment.

The real task is not “do everything” or “do nothing.”

It is to restore the tendon’s ability to adapt.

1) What is happening medically?

The tendon responds to load through mechanotransduction.

If load rises too quickly, too much or too irregularly, capacity can no longer keep up.

That leads to:

  • pain
  • irritability
  • reduced performance
  • unstable return to sport or work

2) Common patterns

  • Mid-portion Achilles tendinopathy
  • Insertional Achilles tendinopathy
  • Patellar tendinopathy
  • Lateral epicondylalgia / tennis elbow
  • Gluteal tendinopathy / GTPS
  • Rotator-cuff-related shoulder pain

3) Differential diagnoses

  • Partial rupture
  • Stress reaction / stress fracture
  • Bursitis
  • Impingement
  • Radiculopathy
  • Arthritis / OA
  • Enthesitis

4) Typical symptoms

  • Start-up pain
  • Pain under load
  • Pain after load
  • Reduced capacity
  • Relapse when load rises too fast
Pattern Common complaint Simple clue
Mid-portion Achilles Start-up pain, running pain Tender 2–6 cm above insertion
Insertional Achilles Pain at insertion Worse on stairs / incline
Patellar tendon Pain below kneecap Worse with squat / stairs
Tennis elbow Lateral elbow pain Worse with gripping or resisted wrist extension
Gluteal Lateral hip pain Worse side-lying / single-leg stance
Shoulder Pain overhead or to the side Worse putting on a jacket or lifting

5) Red flags

Prompt review is needed for:

  • Sudden snap with force loss
  • Deep bone pain
  • Significant neurological signs
  • Systemic inflammatory patterns
  • Pain patterns that do not fit load logic

6) Course

Tendinopathy becomes chronic when patients cycle through:

rest → short improvement → re-entry → flare

Without staged loading, pain becomes the only guide — and that usually fails.

7) Diagnostics

Clinical pattern and load profile often matter more than imaging.

Ultrasound or MRI is used selectively:
– for differential diagnosis
– for partial tear questions
– for atypical or stalled cases

8) Treatment options

  • Load management
  • Isometrics
  • Strength progression
  • Heavy slow resistance
  • Return-to-sport / work criteria
  • Selective bridge modules such as shockwave

Especially in reactive patterns, the right entry point is often load reduction plus controlled
analgesic loading — not aggressive stretching.

9) When a structured program makes sense

A more structured program often makes sense when:

  • symptoms last longer than 6–12 weeks
  • load increase causes repeated relapse
  • the main driver is unclear
  • you need a return-to-sport / work roadmap

View the TENDI Program

Go to the TENDI Program

Common Questions

Can a tendon hurt during training?

Yes. The key is not zero pain, but clear pain rules.

Why does total rest often fail?

Because tendons need load to adapt.

Why is stretching not always the right first step?

Because some tendon patterns react badly to tension and compression.

Do I always need imaging?

No. Clinical pattern and load response often matter more.

This page is for information only and does not replace a personal medical examination. Red flags require prompt medical assessment.