Key result
Players with a history of hamstring strain injury in the prior season had reduced eccentric knee flexor strength in the injured limb compared to the uninjured limb (p<0.01, d=0.56).
Why the study?
It remained unclear whether football players who sustained hamstring strain injuries in the prior season present persistent eccentric knee flexor strength deficits.
Does a history of hamstring strain injury in the prior season affect eccentric knee flexor strength in professional male football players?
Population
210 professional male football players from 10 Brazilian clubs
Comparison
History of unilateral HSI in prior season vs no history
Design
Case-control study
Authors
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Players with prior HSI may retain injured-limb eccentric deficits; leaves open prospective links to reinjury risk and rehab targets.
Case-Control (n=210)
Yes
Does a history of hamstring strain injury in the prior season affect eccentric knee flexor strength in professional male football players?
Standardized Mean Difference: 0.56
p-value: p=<0.01
Professional football players with a history of hamstring strain injury in the prior season present persistent eccentric knee flexor strength deficits in the injured limb.
Ribeiro‐Alvares et al. (2020) conducted a case-control in Hamstring strain injury (n=210). History of unilateral hamstring strain injury in the prior season vs. No history of hamstring strain injury in the prior season was evaluated on Eccentric knee flexor peak force during the Nordic hamstring exercise (d 0.56, p=<0.01). Players with a history of hamstring strain injury in the prior season had reduced eccentric knee flexor strength in the injured limb compared to the uninjured limb (p<0.01, d=0.56).