{"title":"Sex differences in the dynamics of the distance between the talus and lateral malleolus during the stance phase of gait.","authors":"Noriaki Maeda, Satoshi Onoue, Yasunari Ikuta, Satoshi Arima, Honoka Ishihara, Ayano Ishida, Andreas Brand, Yuichi Nishikawa, Makoto Asaeda, Tomoyuki Nakasa, Nobuo Adachi, Tsubasa Tashiro","doi":"10.1007/s10396-025-01577-6","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to assess the dynamics of the distance between the talus and lateral malleolus during the stance phase of gait and confirm any sex differences.</p><p><strong>Methods: </strong>The distance between the talus and lateral malleolus was quantified during gait in 25 healthy participants. Noninvasive ultrasound with three-dimensional motion analysis was used to assess the kinematic properties during the walking stance phase.</p><p><strong>Results: </strong>The distance between the talus and lateral malleolus widened immediately after initial contact, narrowed during mid-stance, and widened during the stance cycle in all participants. The distance was significantly wider in females, especially during the early and terminal stance phases, contributing to differences in sagittal mobility.</p><p><strong>Conclusions: </strong>Quantitative measurement of the anterior talofibular ligament attachment distance may aid in the early detection of ankle abnormalities. The dynamic characteristics observed in females during gait may be associated with chronic ankle instability or osteoarthritis risk.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Medical Ultrasonics","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s10396-025-01577-6","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: This study aimed to assess the dynamics of the distance between the talus and lateral malleolus during the stance phase of gait and confirm any sex differences.
Methods: The distance between the talus and lateral malleolus was quantified during gait in 25 healthy participants. Noninvasive ultrasound with three-dimensional motion analysis was used to assess the kinematic properties during the walking stance phase.
Results: The distance between the talus and lateral malleolus widened immediately after initial contact, narrowed during mid-stance, and widened during the stance cycle in all participants. The distance was significantly wider in females, especially during the early and terminal stance phases, contributing to differences in sagittal mobility.
Conclusions: Quantitative measurement of the anterior talofibular ligament attachment distance may aid in the early detection of ankle abnormalities. The dynamic characteristics observed in females during gait may be associated with chronic ankle instability or osteoarthritis risk.
期刊介绍：
The Journal of Medical Ultrasonics is the official journal of the Japan Society of Ultrasonics in Medicine. The main purpose of the journal is to provide forum for the publication of papers documenting recent advances and new developments in the entire field of ultrasound in medicine and biology, encompassing both the medical and the engineering aspects of the science.The journal welcomes original articles, review articles, images, and letters to the editor.The journal also provides state-of-the-art information such as announcements from the boards and the committees of the society.
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