SynthesisSports medicine (Auckland, N.Z.)2021
Is Pre-season Eccentric Strength Testing During the Nordic Hamstring Exercise Associated with Future Hamstring Strain Injury? A Systematic Review and Meta-analysis.
Synthesis in Sports medicine (Auckland, N.Z.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 15 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effect of high vs. low volume of the nordic hamstring curl on hamstring muscle architecture and eccentric strength in soccer players: a systematic review and meta-analysis.Frontiers in physiology · 2025Pooled it
- Time course of eccentric hamstring strength recovery after a competitive match in under-20-year-old football players.Journal of exercise science and fitness · 2026Article
- The Effect of a Novel Dynamic Hamstring Brace on Muscle and Athletic Performance Tests among Young Basketball Players.Journal of human kinetics · 2026Article
- Article
- Article
- The impact of testing-parameter variability on force production in the isometric single-leg long-lever bridge: implications for training and testing rigor in sporting environments.BMC sports science, medicine & rehabilitation · 2025Article
- Does the Eccentric Strength Profile of the Hamstrings Determine the Severity of Injury Sustained?International journal of sports physical therapy · 2025Article
- Article
- Scoping review of methods of monitoring acute changes in lower body neuromuscular function via force plates.PloS one · 2025Article
- Strength, Agility, and Cardiorespiratory Fitness in Elite Male Futsal Players.International journal of sports physical therapy · 2025Article
- The Effects of Nordic Hamstring Exercise on Performance and Injury in the Lower Extremities: An Umbrella Review.Healthcare (Basel, Switzerland) · 2024Review
- Does Pelvic Tilt Angle Influence the Isokinetic Strength of the Hip and Knee Flexors and Extensors?Journal of functional morphology and kinesiology · 2024Article
- Exploring the Role of Sprint Biomechanics in Hamstring Strain Injuries: A Current Opinion on Existing Concepts and Evidence.Sports medicine (Auckland, N.Z.) · 2024Review
- The Influence of Weekly Sprint Volume and Maximal Velocity Exposures on Eccentric Hamstring Strength in Professional Football Players.Sports (Basel, Switzerland) · 2022Article
- Low Horizontal Force Production Capacity during Sprinting as a Potential Risk Factor of Hamstring Injury in Football.International journal of environmental research and public health · 2021Article
Corrections and comments
- Erratum issued
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundInterventions utilising the Nordic hamstring exercise (NHE) have resulted in reductions in the incidence of hamstring strain injury (HSI). Subsequently, quantifying eccentric knee flexor strength during performance of the NHE to identify an association with the occurrence of future HSI has become increasingly common; however, the data to date are equivocal.
objectiveTo systematically review the association between pre-season eccentric knee flexor strength quantified during performance of the NHE and the occurrence of future HSI.
designSystematic review and meta-analysis. DATA SOURCES: CINAHL, Cochrane Library, Medline Complete, Embase, Web of Science and SPORTDiscus databases were searched from January 2013 to January 10, 2020. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Prospective cohort studies which assessed the association between pre-season eccentric knee flexor strength quantified during performance of the NHE and the occurrence of future HSI.
methodsFollowing database search, article retrieval and title and abstract screening, articles were assessed for eligibility against pre-defined criteria then assessed for risk of bias. Meta-analysis was used to pool data across studies, with meta-regression utilised where possible.
resultsA total of six articles were included in the meta-analysis, encompassing 1100 participants. Comparison of eccentric knee flexor strength during performance of the NHE in 156 injured participants and the 944 uninjured participants revealed no significant differences, regardless of whether strength was expressed as absolute (N), relative to body mass (N kg
conclusionEccentric knee flexor strength quantified during performance of the NHE during pre-season provides limited information about the occurrence of a future HSI.
Indexed as
Identifiers
33914283What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.