Evidence map›Paper›PMID 40018708›Full record

ArticleSport, exercise, and performance psychology2024

A Systematic Meta-Analysis of the Effectiveness of (Left) Hand Contractions on Motor Performance.

Mengkai Luan, Danlei Wang, Andreas Keil, Felix Ehrlenspiel, Arash Mirifar

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Sport, exercise, and performance psychology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. 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.

Mengkai LuanDepartment of Psychology, Shanghai University of Sport, 650 Qing Yuan Huan Road, Shanghai, 200438, People's Republic of China.
Danlei WangDepartment of Psychology, Shanghai University of Sport, 650 Qing Yuan Huan Road, Shanghai, 200438, People's Republic of China.
Andreas KeilCenter for the Study of Emotion & Attention, University of Florida, PO Box 112766, Gainesville, FL 32611, Florida, USA.
Felix EhrlenspielDepartment of Sport and Health Sciences, Faculty of Sports and Health Sciences, Sport Psychology, Technical University of Munich, Uptown Munich, Campus D - Georg-Brauchle-Ring 60/62, 80992, Munich, Germany.
Arash MirifarCenter for the Study of Emotion & Attention, University of Florida, PO Box 112766, Gainesville, FL 32611, Florida, USA.ORCID 0000-0001-8214-5155

Funding

Ding R01 Administrative SupplementR01MH125615 · NIMH · UNIVERSITY OF FLORIDA · PI DING, MINGZHOU, KEIL, ANDREAS · 2021 to 2025
$2.5M
NIMH NIH HHS R01 MH125615
6 · The paper itself

Abstract

Unilateral left hand contractions (LHCs) have been used as a neurophysiologically motivated intervention for optimizing and stabilizing a wide range of behaviors, including motor performance. What is currently unknown however is the efficacy and neurophysiological basis of LHC interventions. The aim of this systematic meta-analysis was to review and synthesize the evidence on the effectiveness of LHCs, as a pre-performance routine, on motor performance. We, therefore, discuss the theoretical background, highlights key methodological considerations, and suggest areas of future research. An electronic search of the PubMed, PsycInfo, Google Scholar, Scopus, and SPORTDiscus databases was conducted to identify peer-reviewed literature relating to LHCs and motor performance, skilled performance, peak performance, and choking. Ten studies (12 effect sizes) met inclusion criteria and were retained for quality assessment and synthesis.

Indexed as

alpha powerDynamic handgripHand contractionsMotor performanceVerbal-analytical

Identifiers

PMID40018708
PMCPMC11862966

What OpenQuestion holds

Textmetadata
LicenceTDM
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.