Evidence map›Paper›PMID 34486440›Full record

ArticleSports health

Confidence to Return to Play After ACL Reconstruction: An Evaluation of Quadriceps Strength Symmetry and Injury Mechanism in Male Athletes.

Rachel K Straub, Francesco Della Villa, Bert Mandelbaum, Christopher M Powers

Open access · greenAbstract read
In one paragraph

Article in Sports health. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.9field-weighted citation impact, top 14% of its field
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

5 citing papers in PubMed, 11 citations in OpenAlex.

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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

4 authors at 2 institutions in 1 country.

Rachel K StraubDivision of Biokinesiology & Physical Therapy, University of Southern California, Los Angeles, California.
Francesco Della VillaEducation and Research Department, Isokinetic Medical Group FIFA Medical Centre of Excellence, Bologna, Italy.
Bert MandelbaumCedars Sinai Kerlan Jobe Institute, Santa Monica, California.
Christopher M PowersDivision of Biokinesiology & Physical Therapy, University of Southern California, Los Angeles, California.
University of Southern California · USCedars-Sinai Kerlan-Jobe Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAfter anterior cruciate ligament reconstruction (ACLR), diminished quadriceps strength symmetry and reduced psychological readiness to return to play (RTP) increase the risk for subsequent injury. Although the relationship between quadriceps strength symmetry and psychological readiness to RTP has been reported to be influenced by injury mechanism in female athletes, it is unclear whether such a relationship exists in male athletes. HYPOTHESIS: Quadriceps strength symmetry would be positively associated with greater psychological readiness to RTP after ACLR, regardless of injury mechanism. STUDY

designRetrospective cohort. LEVEL OF EVIDENCE: Level 3 (cohort study).

methodsSixty male patients completed strength testing and the Injury-Psychological Readiness to Return to Sport Scale (I-PRRS) at an outpatient clinical facility as part of return to sport testing after ACLR. Linear regression analysis was used to assess the relationship between the I-PRRS and the independent variables of interest (quadriceps strength symmetry and injury mechanism).

resultsFor all patients combined, no symmetry × mechanism interaction was found (

conclusionGreater quadriceps strength symmetry was associated with greater psychological readiness to RTP after ACLR in male athletes. In contrast to what has been reported in female athletes, this relationship was independent of injury mechanism. CLINICAL RELEVANCE: Given the potential negative consequences of quadriceps strength deficits on one's confidence to RTP, the need to restore quadriceps symmetry during the postoperative period is readily apparent. Low confidence or low psychological readiness to RTP may be indicative of quadriceps strength asymmetry or poor physical function in general.

Indexed as

Anterior Cruciate Ligament InjuriesAthletesCohort StudiesFemaleHumansMaleMuscle StrengthQuadriceps MuscleRetrospective StudiesReturn to Sportinjury mechanismkneepsychological readinessrehabilitation

Identifiers

PMID34486440
PMCPMC9460094
OpenAlexW3197118038

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.