SynthesisSports medicine (Auckland, N.Z.)2016
Modifiable Factors Associated with Knee Abduction During Weight-Bearing Activities: A Systematic Review and Meta-Analysis.
Synthesis in Sports medicine (Auckland, N.Z.), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03171233 (Immediate Effects of Two Ankle Mobilization Techniques in the Amplitude of Dorsiflexion and Dynamic Valgus Knee), which is not on this map. Cited by 20 papers, 5 of them syntheses 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.
Immediate Effects of Two Ankle Mobilization Techniques in the Amplitude of Dorsiflexion and Dynamic Valgus Knee: a Random Clinical Test
Who cites it
20 citing papers in PubMed, 5 syntheses or guidelines pooled it, 59 citations in OpenAlex.
- Risk factors for postoperative surgical site infections after anterior cruciate ligament reconstruction: a systematic review and meta-analysis.British journal of sports medicine · 2023Pooled it
- Pooled it
- Risk Factors for Contra-Lateral Secondary Anterior Cruciate Ligament Injury: A Systematic Review with Meta-Analysis.Sports medicine (Auckland, N.Z.) · 2021Pooled it
- Isokinetic Trunk Strength in Acute Low Back Pain Patients Compared to Healthy Subjects: A Systematic Review.International journal of environmental research and public health · 2021Pooled it
- Do knee abduction kinematics and kinetics predict future anterior cruciate ligament injury risk? A systematic review and meta-analysis of prospective studies.BMC musculoskeletal disorders · 2020Pooled it
- Analysis of Quadriceps Fatigue Effects on Lower Extremity Injury Risks During Landing Phases in Badminton Scissor Jump.Sensors (Basel, Switzerland) · 2025Article
- The Effect of the FIFA-11+ ACL Injury Prevention Program on Drop Vertical Jump Biomechanics in Varsity Athletes: A Prospective Observational Cohort Study.Orthopaedic journal of sports medicine · 2025Article
- Dual-energy CT-derived virtual noncalcium imaging to assess bone marrow lesions in patients with knee osteoarthritis.Scientific reports · 2025Article
- Restoring ankle dorsiflexion range of motion in athletes: an individualized clinical decision-making system.Frontiers in sports and active living · 2025Article
- Either Autonomy Support or Enhanced Expectancies Delivered Via Virtual-Reality Benefits Frontal-Plane Single-Leg Squatting Kinematics.Perceptual and motor skills · 2024Article
- Factors associated with the Single Leg Squat test in female soccer players: a cross-sectional study.BMC sports science, medicine & rehabilitation · 2024Article
- Dual-energy CT virtual non-calcium: an accurate method for detection of knee osteoarthritis-related edema-like marrow signal intensity.Insights into imaging · 2023Article
- A comparative study of the efficacy of instrument-assisted soft tissue mobilization and massage techniques in patients with patellofemoral joint pain.Frontiers in medicine · 2023Article
- Assessment of Neuromuscular and Psychological Function in People with Recurrent Neck Pain during a Period of Remission: Cross-Sectional and Longitudinal Analyses.Journal of clinical medicine · 2022Article
- Sex differences in postural orientation errors and association with objective and patient-reported function in patients with ACL injury: an exploratory cross-sectional study.BMJ open sport & exercise medicine · 2021Article
- ISOKINETIC TRUNK STRENGTH, VALIDITY, RELIABILITY, NORMATIVE DATA AND RELATION TO PHYSICAL PERFORMANCE AND LOW BACK PAIN: A REVIEW OF THE LITERATURE.International journal of sports physical therapy · 2020Article
- Reliability and validity of a novel Kinect-based software program for measuring a single leg squat.BMC sports science, medicine & rehabilitation · 2020Article
- Visual assessment of movement quality in the single leg squat test: a review and meta-analysis of inter-rater and intrarater reliability.BMJ open sport & exercise medicine · 2019Review
- Article
- Is poor proprioception associated with worse movement quality of the knee in individuals with anterior cruciate ligament deficiency or reconstruction?Journal of physical therapy science · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIncreased knee abduction angle during activity is suggested to be a risk factor for sustaining an anterior cruciate ligament (ACL) injury or developing patellofemoral pain syndrome (PFPS). Knowledge of the modifiable mechanisms that are associated with increased knee abduction will aid in the appropriate design of preventive and rehabilitative strategies for these injuries.
objectiveOur objective was to systematically review modifiable mechanisms contributing to increased knee abduction in healthy people and in individuals with an ACL injury or PFPS.
methodsWe performed a systematic review and meta-analysis according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We searched the databases MEDLINE, CINAHL, and Embase until September 2015. Inclusion criteria were studies in healthy individuals and/or those with ACL injury or PFPS reporting (1) muscle strength, muscle activation, proprioception, and/or range of motion (ROM) and (2) knee abduction angle assessed with either motion analysis or visual observation during weight-bearing activity.
resultsIn total, 33 articles were included. Reduced trunk strength, reduced gluteus maximus amplitude, decreased ankle ROM, and increased hip external rotation ROM were moderately associated with increased knee abduction angle (r -0.34 or higher, standardized difference in means (SDM) greater than -0.39, p < 0.05, articles n = 3, total sample size n = 101-114) in healthy individuals. Decreased strength of hip abductors, external rotators, and extensors and knee flexors were at most weakly associated with increased knee abduction angle (r ≤ 0.21, p = 0.013-0.426, articles n = 2-9, total sample size n = 80-311). Too few articles included patients with knee injury to be included in any meta-analysis.
conclusionThe associations identified in this review indicate that investigation of strengthening of the trunk muscles, and improvement of gluteus maximus activation and ankle ROM to change knee kinematics is merited. Studies on modifiable factors associated with increased knee abduction angle in people with knee injury are needed.
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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.