Key result
Eccentric strength training interventions reduced hamstring strain injury incidence, with eccentric modalities being superiorly effective.
Why the study?
Eccentric strength training reduces hamstring strain injury risk, but implementation can be impacted by athlete compliance and prescription.
Does eccentric strength training reduce hamstring strain injury incidence in athletes?
Meta-Analysis
Does eccentric strength training reduce hamstring strain injury incidence in athletes?
Answers are grounded in this paper and cite their sources.
Eccentric strength training interventions significantly reduce hamstring strain injury incidence in athletes, with greater effectiveness seen with higher compliance and consistency.
Eccentric strength training can reduce the risk of hamstring strain injury (HSI) occurrence; however, its implementation can be impacted by athlete compliance and prescription. The aim of this review was to investigate the effects of intervention compliance, consistency and modality, on the prevention of HSIs among athletes. A literature search was conducted. 868 studies were identified prior to the application of the exclusion criteria which resulted in 13 studies identified. Random effects models were used to produce log odds ratios and 95% confidence intervals. Very high (>75.1%), moderate-high (50.1–75%), low-moderate (25.1–50%) and very low (<25%) and <1-, 1.01–3.00-, >3.01-weeks/session were used as thresholds of compliance and consistency, respectively. Modality was also observed. A positive effect on HSI incidence -0.61 (−1.05 to −0.17), favoring the intervention treatments (Z = −2.70, p = 0.007). There were non-significant, large differences between compliance (p = 0.203, Z = −1.272) and consistency (p = 0.137, Z = −1.488), with increased compliance and consistency showing greater effectiveness. A significant difference between intervention modalities was observed (p < 0.001, Z = −4.136), with eccentric interventions being superiorly effective. Compliance of >50.1% and consistent application with <3 weeks/session having positive effects on HSI incidence. Training interventions that can achieve high levels of compliance, and can be consistently performed, should be the objective of future practice.
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Ripley et al. (2021) conducted a meta-analysis in Hamstring strain injury. Eccentric strength training was evaluated on Hamstring strain injury incidence (log OR -0.61, 95% CI -1.05 to -0.17, p=0.007). Eccentric strength training interventions reduced hamstring strain injury incidence, with eccentric modalities being superiorly effective.
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