ArticleOrthopaedic journal of sports medicine2017
Single-Leg Hop Test Performance and Isokinetic Knee Strength After Anterior Cruciate Ligament Reconstruction in Athletes.
Article in Orthopaedic journal of sports medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 59 citations in OpenAlex.
- Pooled it
- Test Batteries After Primary Anterior Cruciate Ligament Reconstruction: A Systematic Review.Sports healthPooled it
- The 6-m timed hop test is a prognostic factor for outcomes in patients with meniscal tears treated with exercise therapy or arthroscopic partial meniscectomy: a secondary, exploratory analysis of the Odense-Oslo meniscectomy versus exercise (OMEX) trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Trial
- Isokinetic Knee Muscle Strength Following Anterior Cruciate Ligament Reconstruction in Adolescent Patients: A Comparison of In-Hospital Versus Private Clinic Rehabilitation.Physiotherapy Canada. Physiotherapie Canada · 2026Article
- Rehabilitation Following a Distal Semitendinosus Excision in a Collegiate American Football Player: A Resident's Case Report.International journal of sports physical therapy · 2026Article
- Isokinetic Quadriceps Strength at Slower Speeds Following ACLR More Strongly Influences Hop Test Performance in Adolescent Athletes.International journal of sports physical therapy · 2026Article
- Dynamic postural stability and asymmetry in thigh circumference and single-leg hop test following anterior cruciate ligament reconstruction.Journal of experimental orthopaedics · 2025Article
- A Guideline for Validated Return-to-Sport Testing in Everyday Clinical Practice: A Focused Review on the Validity, Reliability, and Feasibility of Tests Estimating the Risk of Reinjury After ACL Reconstruction.Orthopaedic journal of sports medicine · 2025Article
- The Influence of Knee Proprioception and Strength on Lower-Limb Functional Symmetry in Healthy Adults.Muscles (Basel, Switzerland) · 2025Article
- Evaluation of Lower Limb Asymmetry Index Based on the 30-Second Skater Squat Functional Test in Young Men.Journal of clinical medicine · 2024Article
- Greater self-efficacy, psychological readiness and return to sport amongst paediatric patients compared with adolescents and young adults, 8 and 12 months after ACL reconstruction.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Muscle Strength and Efficiency of Muscle Activities Recovery Using Single-Joint Type Hybrid Assistive Limb in Knee Rehabilitation after Anterior Cruciate Ligament Reconstruction.Journal of clinical medicine · 2023Article
- Association between knee function and kinesiophobia 6 months after anterior cruciate ligament reconstruction.Journal of physical therapy science · 2023Article
- Postoperative considerations based on graft type after anterior cruciate ligament reconstruction a narrative review.Annals of joint · 2023Review
- Article
- Validation of Amazon Halo Movement: a smartphone camera-based assessment of movement health.NPJ digital medicine · 2022Article
- Midterm outcome and strength assessment after proximal rectus femoris refixation in athletes.Archives of orthopaedic and trauma surgery · 2022Article
- A Compound Hop Index for Assessing Soccer Players' Performance.Journal of clinical medicine · 2022Article
- Determination of the Strongest Factor and Component in a Relationship between Lower-Extremity Assessment Protocol and Patient-Oriented Outcomes in Individuals with Anterior Cruciate Ligament Reconstruction: A Pilot Study.International journal of environmental research and public health · 2021Article
- Correlations between isokinetic knee torques and single-leg hop distances in three directions in patients after ACL reconstruction.BMC sports science, medicine & rehabilitation · 2021Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIsokinetic strength and hop tests are commonly used to assess athletes' readiness to return to sport after knee surgery. PURPOSE/HYPOTHESIS: The purpose of this study was to investigate the results of single-leg hop and isokinetic knee strength testing in athletes who underwent anterior cruciate ligament reconstruction (ACLR) upon returning to sport participation as well as to study the correlation between these 2 test batteries. The secondary purpose was to compare the test results by graft type (patellar tendon or hamstring). It was hypothesized that there would be no statistically significant limb difference in either isokinetic knee strength or single-leg hop tests, that there would be a moderate to strong correlation between the 2 test batteries, and that there would be no significant difference between graft types. STUDY
designCross-sectional study; Level of evidence, 3.
methodsTwenty-nine high school and collegiate athletes who underwent ACLR participated in this study. At the time of return to full sport participation, a series of hop tests and knee extension/flexion isokinetic strength measurements were conducted. The results were analyzed using analysis of variance and Pearson correlation (
resultsThe timed 6-m hop test was the only hop test that showed a significant difference between the involved and uninvolved limbs (2.3 and 2.2 seconds, respectively;
conclusionThe single-leg hop tests and isokinetic strength measurements were both useful for a bilateral comparison of knee functional performance and strength. Knee flexion strength deficits and flexion-to-extension ratios seemed to be correlated with single-leg hop test performance. There was no difference in postoperative hop test performance or knee strength according to graft type.
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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.