SynthesisJournal of sport and health science2023
Is hamstrings-to-quadriceps torque ratio useful for predicting anterior cruciate ligament and hamstring injuries? A systematic and critical review.
Synthesis in Journal of sport and health science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 1 of them a synthesis that pooled it.
What it found
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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
52 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.
- Assessment of Strength and Power Capacities in Elite Male Soccer: A Systematic Review of Test Protocols Used in Practice and Research.Sports medicine (Auckland, N.Z.) · 2024Pooled it
- Preventing lower limb injuries in women's football: Influence of the Stop X prevention programme on jump performance and isokinetics in professional and young elite-level female football - a prospective observational cohort study.BMC sports science, medicine & rehabilitation · 2026Article
- Effects of Eight Weeks of Unilateral Complex Training on Musculoskeletal Function, Inter-Limb Strength Asymmetry, and Athletic Performance in Competitive Basketball Players.Life (Basel, Switzerland) · 2026Article
- High prevalence of muscle stability deficits in semi-professional football players-Adaptive Force assessment reveals selective impairment of holding capacity with preserved maximal strength: A cross-sectional study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Article
- Age-Related Characteristics of Lower-Limb Muscular Balance in Bulgarian Male Football Players Aged 13 to over 19 Years.Sports (Basel, Switzerland) · 2026Article
- Hamstrings-to-quadriceps ratio in female and male children and adolescents across the velocity spectrum.European journal of applied physiology · 2026Article
- Angle-Matched Isometric and Isokinetic Hamstring-to-Quadriceps Ratios Are Not Directly Interchangeable: An Exploratory Multi-Angle Dynamometry Study.Bioengineering (Basel, Switzerland) · 2026Article
- Muscular profiles of adolescent female soccer players: a cross-sectional comparison of hamstring-to-quadriceps and vastus medialis-to-vastus lateralis characteristics.Journal of orthopaedic surgery and research · 2026Article
- Associations Between Isokinetic Knee Strength at Different Angular Velocities and Explosive Jump Performance in Young Female Athletes: A Pilot Study.Journal of functional morphology and kinesiology · 2026Article
- Pass Rates of Return to Sport Test Batteries Following Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis.Sports (Basel, Switzerland) · 2026Review
- Wearable sensor assessment of neuromuscular latency: revealing the strength-timing trade-off in female soccer.BMC sports science, medicine & rehabilitation · 2026Article
- Comparative Effects of an Acute Bout of Self-Myofascial Release on the Plantar Fascia Using AuramatHealthcare (Basel, Switzerland) · 2026Article
- Article
- Anatomical and functional asymmetry predicts G-force tolerance in high-Intensity physical performers.Scientific reports · 2026Article
- Isokinetic Quadriceps and Hamstring Peak Torque in Athletes Aged 10-50+: Preoperative Uninvolved Limb Reference Values for ACL Reconstruction.International journal of sports physical therapy · 2026Article
- Comparative analysis of isokinetic ratios between hamstrings and quadriceps in wrestlers: Resting state versus post-fatigue evaluation.PloS one · 2026Article
- Effects of hamstring conditioning contraction on landing biomechanics and surface EMG: a randomized controlled trial.Frontiers in bioengineering and biotechnology · 2026Article
- Dual benefits of neuromuscular training in adolescent volleyball players: knee injury prevention and athletic performance share a common mechanistic foundation: a structured narrative review.Frontiers in sports and active living · 2026Review
- Multiligamentous Knee Reconstruction Complicated by Septic Arthritis Following Cosmetic Surgery, A Case Report.International journal of sports physical therapy · 2026Article
- Isokinetic vs. Hand-Held Dynamometry for Assessing Knee Flexor and Extensor Strength in Athletes: Evaluating a Low-Cost Alternative across the Range of Motion.Journal of human kinetics · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFor the past 30 years, the hamstring (H)-to-quadriceps (Q) (H:Q) torque ratio has been considered an important index of muscle strength imbalance around the knee joint. The purpose of this systematic review was to examine the value of H:Q torque ratio as an independent risk factor for hamstring and anterior cruciate ligament (ACL) injuries.
methodsDatabase searches were performed to identify all relevant articles in PubMed, MEDLINE, Cochrane Library, and Scopus. Prospective studies evaluating the conventional (concentric H:Q), functional (eccentric H: concentric Q), and mixed (eccentric H at 30°/s: concentric Q at 240°/s) H:Q ratios as risk factors for occurrence of hamstring muscle strain or ACL injury were considered. Risk of bias was assessed using the Quality In Prognosis Studies tool.
resultsEighteen included studies reported 585 hamstrings injuries in 2945 participants, and 5 studies documented 128 ACL injuries in 2772 participants. Best evidence synthesis analysis indicated that there is very limited evidence that H:Q strength ratio is an independent risk factor for hamstring and ACL injury, and this was not different between various ratio types. Methodological limitations and limited evidence for ACL injuries and some ratio types might have influenced these results.
conclusionThe H:Q ratio has limited value for the prediction of ACL and hamstring injuries. Monitoring strength imbalances along with other modifiable factors during the entire competitive season may provide a better understanding of the association between H:Q ratio and injury.
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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.