Evidence map›Paper›PMID 40075520›Full record

ArticleBMC sports science, medicine & rehabilitation2025

Relationship between swimming performance and shoulder muscle strength in elite Chinese water polo players.

Sikuan Ren, Wenyan Li, Zeyi Zhang, Fengrui Cao

Abstract read
In one paragraph

Article in BMC sports science, medicine & rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

4 authors.

Sikuan RenDepartment of Physical Education, Xinzhou Normal University, XinZhou ShanXi, 034000, China. rsk5555@163.com.
Wenyan LiDepartment of Physical Education, Xinzhou Normal University, XinZhou ShanXi, 034000, China.
Zeyi ZhangSchool of Physical Education & Health Care, East China Normal University, Shanghai, 200241, China.
Fengrui CaoCollege of Physical Education, Taiyuan University of Technology, Taiyuan ShanXi, 030024, China.

Funding

Shanxi Provincial Education Department 2024W159Shanxi Provincial Science and Technology Department 201801D121014
6 · The paper itself

Abstract

backgroundThe relationship between swimming performance and shoulder muscle strength at different swimming distances is unclear. To provide a theoretical basis for future targeted training as well as better detection and prevention of water polo related injuries.

objectiveTo analyze the correlation between swimming speed and shoulder joint muscle strength.

methodsEleven members of the Chinese men's water polo team were included as subjects, and a BIODEX isokinetic muscle strength tester was used to test the isokinetic muscle strength of shoulder flexion, extension, rotation, and abduction-adduction muscles on both sides of the shoulder. And a stopwatch was used to measure swimming speed. Correlation analysis was used to verify the relationship between muscle strength and swimming performance.

resultsA significant difference in the peak moment index of the shoulder muscle groups on both sides of the shoulder at 60°/s centripetal movement. Correlation analysis showed that the 25 m swimming performance was significantly correlated with the peak moment index of the right shoulder extensor group (60°/s centripetal), and with the total work of the left and right shoulder flexor groups and the right shoulder extensor group under the 240°/s centripetal contraction; The 50 m swimming performance was significantly correlated with the index of the right shoulder flexor group and the total work of the left and right extensor groups (240°/s centripetal); The 100 m swimming performance was significantly correlated with the index of the left shoulder flexor group and the total work of the right shoulder extensor group (240°/s centripetal); Swimming performance over 200 m was significantly correlated with the peak moment of the right and left shoulder flexor groups and the right extensor group (240°/s centripetal).

conclusionNational male water polo players have balanced muscle strength on their left and right sides, which contributes to improved swimming performance. In addition, the muscle strength characteristics of their shoulder flexion-extension and adduction-abduction muscle groups can be used as predictors of swimming performance. Conducting training is important to improve the swimming ability of water polo players as well as to better prevent the incidence of shoulder injuries.

Indexed as

Isometric muscle strengthMen’s national water polo teamShoulderSwimming speed

Identifiers

PMID40075520
PMCPMC11900486

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.