Evidence map›Paper›PMID 25427157›Full record

Observational studyPloS one2014

Sex differences in flexibility-arterial stiffness relationship and its application for diagnosis of arterial stiffening: a cross-sectional observational study.

Masato Nishiwaki, Kazumichi Kurobe, Atsushi Kiuchi, Tomohiro Nakamura, Naoyuki Matsumoto

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 15% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 54 citations in OpenAlex.

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  13. Association between Yoga Participation and Arterial Stiffness: A Cross-Sectional Study.International journal of environmental research and public health · 2023
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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

5 authors at 4 institutions in 1 country.

Masato NishiwakiFaculty of Engineering, Osaka Institute of Technology, Osaka, Japan.
Kazumichi KurobeFaculty of Business, Sports Management Course, Hannan University, Osaka, Japan.
Atsushi KiuchiFaculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.
Tomohiro NakamuraFaculty of Engineering, Osaka Institute of Technology, Osaka, Japan.
Naoyuki MatsumotoFaculty of Environmental Symbiotic Sciences, Prefectural University of Kumamoto, Kumamoto, Japan.
Osaka Institute of Technology · JPHannan University · JPPrefectural University of Kumamoto · JPUniversity of Tsukuba · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeArterial stiffness might be related to trunk flexibility in middle-aged and older participants, but it is also affected by age, sex, and blood pressure. This cross-sectional observational study investigated whether trunk flexibility is related to arterial stiffness after considering the major confounding factors of age, sex, and blood pressure. We further investigated whether a simple diagnostic test of flexibility could be helpful to screen for increased arterial stiffening.

methodsAccording to age and sex, we assigned 1150 adults (male, n = 536; female, n = 614; age, 18-89 y) to groups with either high- or poor-flexibility based on the sit-and-reach test. Arterial stiffness was assessed by cardio-ankle vascular index.

resultsIn all categories of men and in older women, arterial stiffness was higher in poor-flexibility than in high-flexibility (P<0.05). This difference remained significant after normalizing arterial stiffness for confounding factors such as blood pressure, but it was not found among young and middle-aged women. Stepwise multiple-regression analysis also supported the notion of the sex differences in flexibility-arterial stiffness relationship. Receiver operating characteristic curve analysis revealed that cut-off values for sit-and-reach among men and women were 33.2 (area under the curve [AUC], 0.711; 95% confidence interval [CI], 0.666-0.756; sensitivity, 61.7%; specificity, 69.7%) and 39.2 (AUC, 0.639; 95% CI, 0.592-0.686; sensitivity, 61.1%; specificity, 62.0%) cm, respectively.

conclusionOur results indicate that flexibility-arterial stiffness relationship is not affected by BP, which is a major confounding factor. In addition, sex differences are observed in this relationship; poor trunk flexibility increases arterial stiffness in young, middle-aged, and older men, whereas the relationship in women is found only in the elderly. Also, the sit-and-reach test can offer a simple method of predicting arterial stiffness at home or elsewhere.

Indexed as

Vascular StiffnessAdolescentAdultAgedAged, 80 and overAge FactorsArteriesBlood PressureCardiovascular DiseasesCross-Sectional StudiesFemaleHumansMaleMiddle AgedSex FactorsYoung Adult

Identifiers

PMID25427157
PMCPMC4245207
OpenAlexW2068051254

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.