Evidence map›Paper›PMID 31564850›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2019

Evaluation of isokinetic muscle strength of upper limb and the relationship with pulmonary function and respiratory muscle strength in stable COPD patients.

Xiaodan Liu, Peijun Li, Zhenwei Wang, Yufan Lu, Ning Li, Lu Xiao, Hongxia Duan, Zhengrong Wang, Jian Li, Chunlei Shan and 1 more

Open access · goldAbstract read
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 23 citations in OpenAlex.

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  4. The human voice aligns with whole-body kinetics.Proceedings. Biological sciences · 2025
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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

11 authors at 2 institutions in 1 country.

Xiaodan LiuSchool of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.
Peijun LiDepartment of Sports Medicine, Shanghai University of Sport, Shanghai, People's Republic of China.
Zhenwei WangDepartment of Respiratory Medicine, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, People's Republic of China.
Yufan LuDepartment of Sports Medicine, Shanghai University of Sport, Shanghai, People's Republic of China.ORCID 0000-0002-0475-0795
Ning LiDepartment of Sports Medicine, Shanghai University of Sport, Shanghai, People's Republic of China.
Lu XiaoSchool of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.
Hongxia DuanSchool of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.
Zhengrong WangDepartment of Sports Medicine, Shanghai University of Sport, Shanghai, People's Republic of China.
Jian LiDepartment of Sports Medicine, Shanghai University of Sport, Shanghai, People's Republic of China.
Chunlei ShanSchool of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China.
Weibing WuDepartment of Sports Medicine, Shanghai University of Sport, Shanghai, People's Republic of China.ORCID 0000-0003-3151-9828
Shanghai University of Sport · CNShanghai University of Traditional Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Upper limb muscle strength plays an important role in respiratory and pulmonary function, and limited research focuses on the role of strength and endurance of the elbow extensor and flexor. This study was conducted to accurately assess upper limb muscle function and quantified associations with pulmonary function and respiratory muscle strength in patients with stable chronic obstructive pulmonary disease (COPD). Methods: In this cross-sectional study, patients with stable COPD treated in Yue-Yang Integrative Medicine Hospital from March 2014 to March 2016 were recruited. All participants underwent a pulmonary function test (forced expiratory volume in first second/forced vital capacity, FEV1/FVC; percentage value of predicted FEV1, FEV1%pred), a respiratory muscle strength test (maximal inspiratory pressure, MIP; maximal expiratory pressure, MEP), and an isokinetic test of dominant upper limb after a 24-hr interval (peak torque, PT; PT/body weight, PT/BW; total work, TW; endurance ratio, ER). Results: A total of 88 patients with stable COPD (age: 65.5±8.7 years) were recruited, of which 73% (64 patients) were male. In the multiple stepwise regression analysis, sex remained as significant impactors in the final model for FEV1%pred (adjusted R Conclusion: In stable COPD, pulmonary function and respiratory muscle strength are associated with upper limb muscle strength. In particular, elbow flexor endurance is likely an important impactor for pulmonary function and inspiratory muscle strength, while elbow extensor strength is of importance for expiratory muscle strength.

Indexed as

AdultAgedAged, 80 and overCross-Sectional StudiesFemaleForced Expiratory VolumeHumansLungMaleMiddle AgedMuscle StrengthPulmonary Disease, Chronic ObstructiveRespiratory Function TestsRespiratory MusclesRetrospective StudiesUpper Extremitychronic obstructive pulmonary diseaseelbow jointenduranceisokinetic testmuscle strength

Identifiers

PMID31564850
PMCPMC6733348
OpenAlexW2971422436

What OpenQuestion holds

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LicenceCC BY-NC
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.