PHAT

Perth Hamstring Assessment ToolClinical

Patient-reported outcome measure specific to hamstring injury and function.

What it is

The Perth Hamstring Assessment Tool (PHAT) is a patient-reported outcome measure designed specifically for hamstring injury, including proximal hamstring tendinopathy and tendon avulsion. It captures symptoms, function and sports participation in a single score out of 100, where higher scores reflect better perceived hamstring function.

Why it matters

Because it is condition-specific rather than generic, it picks up the functional and sporting demands that matter most to patients recovering from hamstring injury, which broader health measures tend to miss. Tracking the score over time helps inform conversations about readiness to progress rehab, return to sport, or consider surgical referral in cases of proximal tendon pathology.

How it's measured

Patients complete the questionnaire at baseline and at intervals through conservative or post-surgical rehabilitation, alongside generic outcome measures to give a fuller picture of overall health status. The resulting score is used to benchmark progress against the patient's own baseline rather than as a stand-alone diagnostic test.

Watch-outs

As a self-report measure, the PHAT reflects perceived function and is subject to the usual limitations of patient-reported outcomes, including responsiveness to change and ceiling effects in milder cases. It should be interpreted alongside clinical examination and functional testing rather than used in isolation to guide return-to-sport decisions.

Sources & further reading
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This guide was auto-drafted and is pending editorial review.