Hamstring strain in football: why it keeps coming back — and how to fix it for good

Hamstring injuries are the most common injury in football and the most likely to recur. Here’s what the evidence says about preventing them, rehabilitating them properly, and knowing when you’re actually ready to play.

Why hamstring strains dominate football injury lists

If you play football and you’ve never strained a hamstring, you’re in the lucky minority. Across nearly two decades of UEFA injury surveillance in elite men’s football, hamstring injuries have consistently been the single most common injury — accounting for roughly 17% of all time-loss injuries, with the rate actually increasing over the last 21 seasons of monitoring [1]. The story is similar across the A-League, NPL, and at amateur and youth level: high-speed running puts a level of stress through the hamstring complex that few other tissues in the body have to cope with.

Working as a sports physiotherapist in North Brisbane — particularly with our football players at Moreton City Excelsior — hamstring injuries are something I see and treat constantly. The frustrating part for most players isn’t the first injury. It’s the second, third, or fourth.

The recurrence problem

Re-injury rates after a hamstring strain are reported anywhere from 12% to 33% within the first two months of return to play, with most studies clustering around 16–20% [2]. That means roughly one in five players who tear a hamstring will tear it again before the season ends — and re-injuries are typically more severe than the original.

The traditional approach — rest until pain is gone, run when it doesn’t hurt, then play — is exactly the recipe for that recurrence rate. The reason: pain resolves long before the muscle’s capacity does.

You can be pain-free at 60% of your eccentric strength. You cannot safely sprint at 60% of your eccentric strength.

What the evidence actually says about prevention

The single most studied intervention in football injury prevention is the Nordic Hamstring Exercise (NHE) — a partner-assisted eccentric exercise where you kneel and lower yourself slowly toward the ground, controlling the descent with your hamstrings.

Petersen and colleagues’ landmark cluster-randomised trial of 942 Danish players found a ~70% reduction in hamstring injuries in the group that completed a 10-week NHE program, and a roughly 85% reduction in recurrent injuries [3]. A 2019 systematic review and meta-analysis confirmed the effect across populations, with NHE roughly halving overall hamstring injury risk [4]. Compliance is the catch — the protective effect tracks with how consistently teams actually do it.

For prevention, the evidence-based prescription is simple:

• Start with low volume (1 set of 5 reps) and build over 4–6 weeks to 3 sets of 6–10 reps
• 2–3 sessions per week in pre-season; 1 maintenance session per week in-season
• Lower under control over 3–5 seconds — the eccentric phase is what matters

Rehab: stages that match the tissue

The Askling group’s work on hamstring rehab gave us one of the most effective progressions still in use today. The key insight: lengthening exercises — loaded movements that take the hamstring into long ranges — produce significantly faster return-to-sport than conventional protocols, with no increase in re-injury [5].

A staged approach I use in clinic looks like this:

Stage 1: Settle and protect (days 0–7)

Pain-free isometrics. Walking. Avoid stretching to end-range — this can disrupt early healing. Build basic load tolerance.

Stage 2: Load and lengthen (week 1–3)

Introduce eccentric work in mid-range, then progressively in lengthened positions. Slider exercises, single-leg Romanian deadlifts, and the “diver” and “extender” from the Askling protocol are mainstays. This is where most rehab programs under-load.

Stage 3: Sprint reintroduction (week 2–5)

Hamstring tissue is uniquely loaded by sprinting — you cannot rehabilitate a sprinting injury without sprinting. Build from accelerations to maximal velocity exposure over 1–2 weeks before RTP, not after.

Stage 4: Return-to-play criteria

Pain-free is the floor, not the ceiling. Use objective measures:

• Askling H-test: a single fast straight-leg raise. Insecurity, apprehension, or asymmetry = not ready [6].
• Eccentric strength symmetry: <10% deficit between limbs (handheld dynamometer or NordBord)
• Maximal sprint exposure: at least 2–3 sessions of high-speed running at full match intensity completed without symptom return
• Sport-specific drills: change of direction, cutting, and position-specific work all completed at full intensity

Why this matters in North Brisbane

Sports physiotherapy with this depth of return-to-play detail isn’t universally available locally. Most generalist clinics are excellent at managing the early stages, but the back-end — the sprint reintroduction, the criteria-based decision to play — is often where things fall down. That’s the gap I’m focused on filling for football players in Brendale and the wider North Brisbane area.

If you’ve had a hamstring injury in the last 12 months and you’re back playing without ever doing structured eccentric loading or a return-to-play test — statistically, you’re still in the high-risk window. Worth getting checked.