Evidence map›Paper›PMID 37968849›Full record

SynthesisSports health

Limb Symmetry Index of Single-Leg Vertical Jump vs. Single-Leg Hop for Distance After ACL Reconstruction: A Systematic Review and Meta-analysis.

Li Wang, QingHong Xia, Tao Li, ZeYan Wang, Jian Li

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Sports health. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Article
  2. Asymmetry in Recreational Athletes One Year After Anterior Cruciate Ligament Reconstruction: Comparison of Isokinetic Strength and Hop Test Performance.Physiotherapy research international : the journal for researchers and clinicians in physical therapy · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Li WangDepartment of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.
QingHong XiaOperating Room of Anesthesia Surgery Center, West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, China.
Tao LiDepartment of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.
ZeYan WangWest China School of Medicine, West China Hospital, Sichuan University, China.
Jian LiDepartment of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextThe limb symmetry index (LSI) is recommended as a milestone of return to play (RTP), and relying on the LSI value of a single-leg hop for distance (SLHD) test may overestimate rehabilitation status. Identifying a more reliable functional test can help to carefully make decisions for RTP.

objectiveThe aim was to compare the LSI value of the SLHD test with that of a single-leg vertical jump (SLVJ) test after anterior cruciate ligament reconstruction (ACLR) and determine which test provides lower LSI values. DATA SOURCES: The PubMed, Web of Science, Embase, and Cochrane Library databases were searched from inception to July 2022. STUDY SELECTION: Observational studies with participants who had both SLHD and SLVJ tests after ACLR and LSI values of an SLHD and SLVJ were included. Disagreements were resolved after discussion between the 2 researchers. STUDY

designSystematic review and meta-analysis. LEVEL OF EVIDENCE: Level 4. DATA EXTRACTION: Data on the primary outcomes (LSI values of the SLVJ and SLHD tests) were collected. Means and standard deviations (SDs) for each variable of interest were used to calculate standardized mean differences (SMDs).

resultsA total of 12 studies met the inclusion criteria for the meta-analysis. A total of 587 patients underwent SLHD and SLVJ tests at different time points after ACLR. Compared with the SLHD test, the SLVJ test provided lower LSI values (SMD -0.42; 95% confidence interval (CI) -0.67 to -0.17). Subgroup analysis found that the SLVJ test provided a lower LSI value than the SLHD test in a specific period (approximately 7-18 months after ACLR, SMD -0.53; 95% CI -0.91 to -0.14) and a similar LSI value at other times.

conclusionThe SLVJ test provided lower LSI values in a specific period (7-18 months after ACLR).

Indexed as

Anterior Cruciate Ligament InjuriesAnterior Cruciate Ligament ReconstructionExercise TestReturn to SportHumansanterior cruciate ligamenthop for distancelimb symmetry indexmeta-analysisvertical jump

Identifiers

PMID37968849
PMCPMC11346230

What OpenQuestion holds

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Registered trials

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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.