ArticleMedicine and science in sports and exercise2019
Walking Ground Reaction Force Post-ACL Reconstruction: Analysis of Time and Symptoms.
Article in Medicine and science in sports and exercise, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 3 of them syntheses 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.
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Who cites it
44 citing papers in PubMed, 3 syntheses or guidelines pooled it, 82 citations in OpenAlex.
- Time-Dependent Alterations in Walking Biomechanics After Anterior Cruciate Ligament Reconstruction Compared with Healthy Individuals: A Systematic Review with Meta-analysis.Sports medicine - open · 2026Pooled it
- Are Altered Knee Joint Biomechanics Associated with Future Post-Traumatic Osteoarthritis Outcomes? A Systematic Review and Meta-Analysis of Longitudinal Studies.Sports medicine (Auckland, N.Z.) · 2025Pooled it
- Hamstrings Neuromuscular Function After Anterior Cruciate Ligament Reconstruction: A Systematic Review and Meta-Analysis.Sports medicine (Auckland, N.Z.) · 2021Pooled it
- Peak Vertical Ground Reaction Force Modifies Gait Biomechanics Bilaterally Following ACL Reconstruction: A Randomized Experiment.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025Trial
- Effect of knee extension constraint training on walking biomechanics 6 months after anterior cruciate ligament reconstruction: a double-blind randomized controlled clinical trial.Journal of orthopaedic surgery and research · 2025Trial
- Trial
- Biofeedback augmenting lower limb loading alters the underlying temporal structure of gait following anterior cruciate ligament reconstruction.Human movement science · 2020Trial
- Immediate Biochemical Changes After Gait Biofeedback in Individuals With Anterior Cruciate Ligament Reconstruction.Journal of athletic training · 2020Trial
- Increasing dynamic limb-level loading via real-time biofeedback decreases cumulative loading impulse during gait post-anterior cruciate ligament reconstruction.Clinical biomechanics (Bristol, Avon) · 2026Article
- Effects of Quadriceps Strength Recovery in the First Year After Anterior Cruciate Ligament Reconstruction on Gait Biomechanics.Sports health · 2026Article
- Personalized musculoskeletal models show that gait biofeedback alters knee cartilage contact mechanics in ACL-reconstructed subjects.Journal of biomechanics · 2026Article
- Gait Biomechanical Profiles Following Anterior Cruciate Ligament Reconstruction in Sexually-Immature Pediatrics.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2026Article
- Progressive Bilateral Alterations in Gait Biomechanics Within 2 Years After Anterior Cruciate Ligament Reconstruction.Orthopaedic journal of sports medicine · 2026Article
- Biomechanical Compensation Patterns Across Different Phases of Side-Cutting Following Anterior Cruciate Ligament Reconstruction.Bioengineering (Basel, Switzerland) · 2025Article
- Tibiofemoral Joint Contact Force Profiles of Pediatric Patients After Anterior Cruciate Ligament Reconstruction.The American journal of sports medicine · 2025Article
- Aberrant Gait Biomechanics Linked to Cartilage Changes After ACL Reconstruction in Those With High Body Mass Index.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025Article
- Lower Extremity Mechanical Energetics During Walking 6 Months Following Anterior Cruciate Ligament Reconstruction.Scandinavian journal of medicine & science in sports · 2025Article
- Quadriceps Strength Does Not Associate With Gait Adaptation Ability in Individuals With Anterior Cruciate Ligament Reconstruction.Journal of athletic training · 2025Article
- Biomechanical Threshold Values for Identifying Clinically Significant Knee-Related Symptoms 6 Months After Anterior Cruciate Ligament Reconstruction.Journal of athletic training · 2025Article
- Bilateral waveform analysis of gait biomechanics presurgery to 12 months following ACL reconstruction compared to controls.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
purposeThe association between lower-extremity loading and clinically relevant knee symptoms at different time points after anterior cruciate ligament reconstruction (ACLR) is unclear. Vertical ground reaction force (vGRF) from walking was compared between individuals with and without clinically relevant knee symptoms in three cohorts: <12 months post-ACLR, 12-24 months post-ACLR, and >24 months post-ACLR.
methodsOne hundred twenty-eight individuals with unilateral ACLR were classified as symptomatic or asymptomatic, based on previously defined cutoff values for the Knee Osteoarthritis and Injury Outcome Score (<12 months post-ACLR [symptomatic n = 28, asymptomatic n = 24]; 12-24 months post-ACLR [symptomatic n = 15, asymptomatic n = 15], and >24 months post-ACLR [symptomatic, n = 13; asymptomatic, n = 33]). Vertical ground reaction force exerted on the ACLR limb was collected during walking gait, and functional analyses of variance were used to evaluate the effects of symptoms and time post-ACLR on vGRF throughout stance phase (α = 0.05).
resultsSymptomatic individuals, <12 months post-ACLR, demonstrated less vGRF during both vGRF peaks (i.e., weight acceptance and propulsion) and greater vGRF during midstance, compared to asymptomatic individuals. Vertical ground reaction force characteristics were not different between symptomatic and asymptomatic individuals for most of stance in individuals between 12 and 24 months post-ACLR. Symptomatic individuals who were >24 months post-ACLR, exhibited greater vGRF during both peaks, but lesser vGRF during midstance, compared to asymptomatic individuals.
conclusionRelative to asymptomatic individuals, symptomatic individuals are more likely to underload the ACLR limb early after ACLR (i.e., <12 months) during both vGRF peaks, but overload the ACLR limb, during both vGRF peaks, at later time points (i.e., >24 months). We propose these differences in lower-extremity loading during walking might have implications for long-term knee health, and should be considered when designing therapeutic interventions for individuals with an ACLR.
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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.