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Relationship between Changes in Foot Arch and Sex Differences during the Menstrual Cycle

This study investigated the relationship between changes in foot characteristics and sex differences during the menstrual cycle in healthy male and female university students. We examined 10 female subjects and 14 male subjects. The menstrual cycle was divided into the three phases: the early follic...

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Autores principales: Edama, Mutsuaki, Ohya, Tae, Maruyama, Sae, Shagawa, Mayuu, Sekine, Chie, Hirabayashi, Ryo, Yokota, Hirotake, Ishigaki, Tomonobu, Akuzawa, Hiroshi, Togashi, Ryoya, Yamada, Yuki, Takabayashi, Tomoya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9819586/
https://www.ncbi.nlm.nih.gov/pubmed/36612829
http://dx.doi.org/10.3390/ijerph20010509
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author Edama, Mutsuaki
Ohya, Tae
Maruyama, Sae
Shagawa, Mayuu
Sekine, Chie
Hirabayashi, Ryo
Yokota, Hirotake
Ishigaki, Tomonobu
Akuzawa, Hiroshi
Togashi, Ryoya
Yamada, Yuki
Takabayashi, Tomoya
author_facet Edama, Mutsuaki
Ohya, Tae
Maruyama, Sae
Shagawa, Mayuu
Sekine, Chie
Hirabayashi, Ryo
Yokota, Hirotake
Ishigaki, Tomonobu
Akuzawa, Hiroshi
Togashi, Ryoya
Yamada, Yuki
Takabayashi, Tomoya
author_sort Edama, Mutsuaki
collection PubMed
description This study investigated the relationship between changes in foot characteristics and sex differences during the menstrual cycle in healthy male and female university students. We examined 10 female subjects and 14 male subjects. The menstrual cycle was divided into the three phases: the early follicular phase, ovulatory phase, and luteal phase via basal body temperature, an ovulation kit, and salivary estradiol and progesterone concentration measurements. Foot characteristics required for the calculation of the arch height index (AHI) were measured using a three-dimensional foot scanner under conditions of 10% and 50% weight-bearing loads. Arch height at 50% of foot length and truncated foot length were measured, and AHI was calculated by dividing arch height by truncated foot length. Arch height flexibility (AHF) was defined as the change in arch height from 10% weight-bearing load to 50% weight-bearing load. AHI was significantly lower in females than in males in the early follicular and ovulatory phases but did not differ significantly between males and females in each phase. AHF did not differ significantly between males and females in each phase. AHI and AHF showed no periodic fluctuation, suggesting that sex differences in AHF may be absent.
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spelling pubmed-98195862023-01-07 Relationship between Changes in Foot Arch and Sex Differences during the Menstrual Cycle Edama, Mutsuaki Ohya, Tae Maruyama, Sae Shagawa, Mayuu Sekine, Chie Hirabayashi, Ryo Yokota, Hirotake Ishigaki, Tomonobu Akuzawa, Hiroshi Togashi, Ryoya Yamada, Yuki Takabayashi, Tomoya Int J Environ Res Public Health Article This study investigated the relationship between changes in foot characteristics and sex differences during the menstrual cycle in healthy male and female university students. We examined 10 female subjects and 14 male subjects. The menstrual cycle was divided into the three phases: the early follicular phase, ovulatory phase, and luteal phase via basal body temperature, an ovulation kit, and salivary estradiol and progesterone concentration measurements. Foot characteristics required for the calculation of the arch height index (AHI) were measured using a three-dimensional foot scanner under conditions of 10% and 50% weight-bearing loads. Arch height at 50% of foot length and truncated foot length were measured, and AHI was calculated by dividing arch height by truncated foot length. Arch height flexibility (AHF) was defined as the change in arch height from 10% weight-bearing load to 50% weight-bearing load. AHI was significantly lower in females than in males in the early follicular and ovulatory phases but did not differ significantly between males and females in each phase. AHF did not differ significantly between males and females in each phase. AHI and AHF showed no periodic fluctuation, suggesting that sex differences in AHF may be absent. MDPI 2022-12-28 /pmc/articles/PMC9819586/ /pubmed/36612829 http://dx.doi.org/10.3390/ijerph20010509 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Edama, Mutsuaki
Ohya, Tae
Maruyama, Sae
Shagawa, Mayuu
Sekine, Chie
Hirabayashi, Ryo
Yokota, Hirotake
Ishigaki, Tomonobu
Akuzawa, Hiroshi
Togashi, Ryoya
Yamada, Yuki
Takabayashi, Tomoya
Relationship between Changes in Foot Arch and Sex Differences during the Menstrual Cycle
title Relationship between Changes in Foot Arch and Sex Differences during the Menstrual Cycle
title_full Relationship between Changes in Foot Arch and Sex Differences during the Menstrual Cycle
title_fullStr Relationship between Changes in Foot Arch and Sex Differences during the Menstrual Cycle
title_full_unstemmed Relationship between Changes in Foot Arch and Sex Differences during the Menstrual Cycle
title_short Relationship between Changes in Foot Arch and Sex Differences during the Menstrual Cycle
title_sort relationship between changes in foot arch and sex differences during the menstrual cycle
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9819586/
https://www.ncbi.nlm.nih.gov/pubmed/36612829
http://dx.doi.org/10.3390/ijerph20010509
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