Evidence map›Paper›PMID 33761990›Full record

ArticleJournal of foot and ankle research2021

A preliminary study exploring the change in ankle joint laxity and general joint laxity during the menstrual cycle in cis women.

Tomomi Yamazaki, Sae Maruyama, Yuki Sato, Yukako Suzuki, Sohei Shimizu, Fumiya Kaneko, Masahiro Ikezu, Kanta Matsuzawa, Mutsuaki Edama

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Journal of foot and ankle research, 2021. 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
1.8field-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, 17 citations in OpenAlex.

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  11. Relationship between Changes in Foot Arch and Sex Differences during the Menstrual Cycle.International journal of environmental research and public health · 2022
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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

9 authors at 1 institution in 1 country.

Tomomi YamazakiInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 950-3198, Shimami-cho 1398, Kita-Ku,, Niigata, Japan.
Sae MaruyamaInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 950-3198, Shimami-cho 1398, Kita-Ku,, Niigata, Japan.
Yuki SatoInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 950-3198, Shimami-cho 1398, Kita-Ku,, Niigata, Japan.
Yukako SuzukiInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 950-3198, Shimami-cho 1398, Kita-Ku,, Niigata, Japan.
Sohei ShimizuInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 950-3198, Shimami-cho 1398, Kita-Ku,, Niigata, Japan.
Fumiya KanekoInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 950-3198, Shimami-cho 1398, Kita-Ku,, Niigata, Japan.
Masahiro IkezuInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 950-3198, Shimami-cho 1398, Kita-Ku,, Niigata, Japan.
Kanta MatsuzawaInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 950-3198, Shimami-cho 1398, Kita-Ku,, Niigata, Japan.
Mutsuaki EdamaInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 950-3198, Shimami-cho 1398, Kita-Ku,, Niigata, Japan. edama@nuhw.ac.jp.ORCID http://orcid.org/0000-0002-2784-6466
Niigata University of Health and Welfare · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe purpose of the present study was to examine the relationship between ankle joint laxity and general joint laxity (GJL) in relation to the menstrual cycle, which was divided into four phases based on basal body temperature and ovulation, assessed using an ovulation kit.

methodsParticipants were 14 female college students (21-22 years) with normal menstrual cycles (cis gender). Anterior drawer stress to a magnitude of 120 N was applied for all participants. Anterior talofibular ligament (ATFL) length was measured as the linear distance (mm) between its points of attachment on the lateral malleolus and talus using ultrasonography. Data on ATFL length from each subject were used to calculate each subject's normalized length change with anterior drawer stress (AD%). The University of Tokyo method was used for evaluation of GJL. AD% and GJL were measured once in each menstrual phase.

resultsThere was no statistically significant difference between AD% in each phase. GJL score was significantly higher in the ovulation and luteal phases compared with the early follicular phase. AD% and GJL showed a positive correlation with each other in the ovulation phase.

conclusionsAlthough it is unclear whether estrogen receptors are present in the ATFL, the present study suggests that women with high GJL scores might be more sensitive to the effects of estrogen, resulting in ATFL length change in the ovulation phase.

Indexed as

UltrasonographyAnkle JointFemaleHumansJoint InstabilityLateral Ligament, AnkleMenstrual CycleYoung AdultAnterior tibiofibular ligamentLateral ankle ligamentous sprainOvulation phase

Identifiers

PMID33761990
PMCPMC7988940
OpenAlexW3137129810

What OpenQuestion holds

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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.