Chronic proximal hamstring tendinopathy (PHT) is the single most common overuse injury we see in Johor's road and gravel cycling community - the Iskandar Puteri and Kulai peloton, the Pulai and Gelang Patah long-distance riders, and the growing Johor parkrun-adjacent hybrid cyclist crowd.
It shows up as a deep, localised ache at the sit-bone (ischial tuberosity) that becomes a sharp pinch after 40 minutes in the saddle, gets worse on climbs, and often persists for months even after rest.
Rest alone almost never fixes it. That's the frustrating part - and also the clue to how it actually rehabs.
What it is (and why rest fails)
PHT is a degenerative tendon change at the sit-bone attachment of the hamstrings.
Under prolonged overload (long rides, aggressive TT position, sudden mileage jumps), the tendon's collagen matrix disorganises.
Rest lets the pain settle, but the disorganised tendon doesn't remodel without load - so as soon as you return to riding, the pain returns.
The fix is counter-intuitive: heavy, slow, progressive loading that the tendon can adapt to. Not stretching.
Not foam rolling. Not cortisone (which weakens the tendon further).
How to know it's PHT (not just a sore hamstring)
- Deep ache directly under the sit-bone, not in the muscle belly.
- Pain worst when sitting on hard surfaces (a car seat, a hard chair, a saddle) for more than 20 minutes.
- Pain on climbing or low-cadence high-torque efforts, especially when the hip is deeply flexed.
- Often one-sided, sometimes following a change of bike, saddle position, or a big mileage build.
- Morning stiffness at the sit-bone that warms up with walking, then returns after riding.
If you have sharp, acute tearing pain, bruising, or sudden weakness - that's an acute hamstring injury, not tendinopathy.
Different pathway; see a physio in 48 hours.
The 4-phase rehab - 12 to 16 weeks
Phase 1 (weeks 1–3): isometric loading
Heavy isometrics dampen tendon pain and allow early loading. Target: 5 sets of 45-second holds at 70% of maximum effort, once daily.
- Wall isometric hamstring hold: Lie supine, heels on a chair or bench, knees bent 20°. Drive heels down into the bench - hold.
- Cycling continues at ~60% of normal volume at low intensity; no climbing, no intervals.
Phase 2 (weeks 4–7): slow heavy loading
Isotonic heavy-slow work - 3 sets × 8 reps, each rep 6 seconds (3s up, 3s down).
Twice a week, progressive load.
- Romanian deadlift with dumbbells or a kettlebell.
- Single-leg hamstring curl on a Swiss ball or slider.
- Hip thrust with barbell or weight plate.
- Return to 80% of normal riding volume.
Phase 3 (weeks 8–12): energy storage and release
Faster loading - the tendon now needs to tolerate stretch-shortening cycle work. 3 sessions per week:
- Nordic hamstring curl (assisted if needed): 3 sets × 5–8 reps.
- Single-leg deadlift with reach: 3 × 8 per side.
- Sprints on the bike: 6 × 30 seconds at high cadence, full recovery.
- Climbing progressively reintroduced at seated effort; avoid standing climbs.
Phase 4 (weeks 13–16): return to full riding
Full volume and intensity. Standing climbs, aggressive TT position, and intervals reintroduced.
Maintenance strength program (2 sessions/week) continues indefinitely - PHT recurs when the loading drops off.
The bike fit piece - don't skip it
A saddle too far forward, a reach too aggressive, or a saddle nose-up angle all load the sit-bone more.
Before rehab finishes, get a bike fit review from someone who knows road and TT geometry.
Often a 5mm saddle setback adjustment or a flatter saddle angle resolves the recurrence pattern.
How PhysioJohor matches PHT cyclists
WhatsApp us with: weekly riding volume, duration of symptoms, side affected, pain triggers (sitting vs. climbing vs.
TT position), and whether you've had cortisone or imaging.
We match to a physio who rides themselves and knows the difference between PHT rehab and generic hamstring rehab - the loading prescriptions are not interchangeable.
Related guide: Physiotherapy in Johor - complete guide