What is hamstring tendinopathy?
Your hamstring muscles attach at two ends. At the top (proximal end), the tendons connect to the ischial tuberosity — the bony point you sit on. Hamstring tendinopathy occurs when this tendon attachment becomes irritated and painful, usually from repeated overloading over time rather than a single incident. It is a different injury from a hamstring muscle strain, which is an acute tear of the muscle belly itself.
How it differs from a hamstring strain
| Feature | Hamstring strain | Hamstring tendinopathy |
|---|---|---|
| Onset | Sudden — usually during sprinting, kicking, or lunging | Gradual — develops over weeks or months |
| Location | Mid-thigh or muscle-tendon junction (back of thigh) | Deep in the buttock, right on the sitting bone |
| Bruising | Often present in moderate to severe strains | None |
| Sitting pain | Uncommon unless very severe | A hallmark symptom — worse on hard surfaces |
| Response to rest | Improves significantly with rest | Improves temporarily, but returns when activity resumes |
| Recovery timeline | 1–12 weeks depending on grade | 3–6 months with structured rehabilitation |
3–6 months
Typical recovery
with structured rehab
Heavy slow resistance
Key exercise
loaded hamstring work
Hallmark
Sitting pain
worse on hard surfaces
Why rugby players develop this
Rugby places heavy demands on the hamstrings through sprinting, acceleration, kicking, and repeated high-speed running across training and matches. The proximal tendon is particularly stressed during:
- High-speed running — the hamstrings work hardest during the late swing phase of sprinting, when the muscle is at full stretch under load
- Acceleration and deceleration — rapid changes of speed place significant compression and tensile loads through the proximal tendon
- Kicking — the follow-through motion stretches the hamstrings at their proximal attachment
- Sudden increases in sprint volume — pre-season or returning from a break without adequate build-up
- Prolonged sitting between sessions — compresses the tendon against the ischial tuberosity, which can aggravate an already irritated tendon
What does it feel like?
The pain is typically deep in the lower buttock, right on the bone you sit on. It is often described as a deep ache rather than a sharp pain. It tends to be worse with sitting (especially on hard surfaces), high-speed running, lunging, and activities that stretch the hamstrings at length (such as deadlifts or deep forward bending). Importantly, the pain may warm up during activity — you might feel better once you get going — but it flares up again afterwards.
How it is managed
The cornerstone of treatment is progressive tendon loading — slowly increasing the weight and intensity of exercises that load the hamstring tendon. This stimulates the tendon to adapt and become more resilient. Complete rest does not help and may actually make the tendon weaker and more sensitive.
- Heavy slow resistance (HSR) — exercises like the Nordic curl, single-leg deadlift, and bridge performed with heavy loads and slow tempos (3–4 seconds per phase)
- Isometric exercises — sustained holds (such as a bridge hold or wall sit variation) can help manage pain, especially early in rehabilitation
- Load management — reducing sprint volume and high-speed running to a level that does not flare the tendon, then gradually building back up
- Avoiding compressive loads — limiting prolonged sitting, deep stretching, and exercises that place the hamstring on maximum stretch under load
- Patience — tendons adapt more slowly than muscles. Progress is measured in weeks and months, not days
When to seek specialist advice
If your symptoms have persisted for more than 6 weeks despite reducing load and attempting rehabilitation, or if the pain is severe enough to affect daily activities like sitting and walking, a sports medicine physician or physiotherapist with experience in tendinopathy should assess you. Imaging (MRI or ultrasound) may help confirm the diagnosis and rule out other conditions. In rare cases that do not respond to 6–12 months of structured rehabilitation, surgical options may be discussed.