Eccentric Strength Assessment of Hamstring Muscles with New Technologies: a Systematic Review of Current Methods and Clinical Implications

Abstract Background Given the severe economic and performance implications of hamstring injuries, there are different attempts to identify their risk factors for subsequently developing injury prevention strategies reduce these injuries. One reported in scientific literature is application interventions with eccentric exercises. To verify effectiveness interventions, strength measurements have been used low-cost devices as alternatives widespread isokinetic dynamometers technically limited handheld dynamometers. Therefore, purpose present systematic review was summarize findings related evaluation muscles new technologies. Methods Systematic searches through PubMed, Scopus, Web Science databases, from inception up April 2020, were conducted peer reviewed articles written English, reporting hamstrings assessed by devices, dynamometers, athletes. Results Seventeen studies finally included 4 18 parameters identified. The pooled sample consisted 2893 participants (97% male 3% female: 22 ± years). most peak force (highest average), torque (average highest), between-limb imbalance (left-to-right limb ratio). There inconsistency regarding association between both athletic performance. no standardized definition or standardization calculation parameters. Conclusions current evidence insufficient recommend a practical guide sports professionals use technologies daily routine, due need definitions calculations. Furthermore, more female athletes warranted. Despite limitations, may be recommended monitoring neuromuscular status