Fat infiltration in the gluteus minimus muscle in older adults

Yuta Takano,1 Hiroto Kobayashi,2 Takuma Yuri,1 Saori Yoshida,2 Akira Naito,2 Yoshiro Kiyoshige1 1Graduate School of Health Science, Yamagata Prefectural University of Health Science, Yamagata, Japan; 2Department of Anatomy, Yamagata University Faculty of Medicine, Yamagata, Japan Purpose: Fat infi...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Takano Y, Kobayashi H, Yuri T, Yoshida S, Naito A, Kiyoshige Y
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2018
Materias:	Gluteus minimus Fat infiltration Disuse Denervation Cadaver Geriatrics RC952-954.6
Acceso en línea:	https://doaj.org/article/9a736366f5b74d15853653dc9908b131
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:9a736366f5b74d15853653dc9908b131
record_format	dspace
spelling	oai:doaj.org-article:9a736366f5b74d15853653dc9908b1312021-12-02T06:58:31ZFat infiltration in the gluteus minimus muscle in older adults1178-1998https://doaj.org/article/9a736366f5b74d15853653dc9908b1312018-05-01T00:00:00Zhttps://www.dovepress.com/fat-infiltration-in-the-gluteus-minimus-muscle-in-older-adults-peer-reviewed-article-CIAhttps://doaj.org/toc/1178-1998Yuta Takano,1 Hiroto Kobayashi,2 Takuma Yuri,1 Saori Yoshida,2 Akira Naito,2 Yoshiro Kiyoshige1 1Graduate School of Health Science, Yamagata Prefectural University of Health Science, Yamagata, Japan; 2Department of Anatomy, Yamagata University Faculty of Medicine, Yamagata, Japan Purpose: Fat infiltration (FI) in the gluteus minimus muscle (GMin) has been reported as being restricted to the anterior part. The aim of this study was to verify whether FI is localized only to the anterior part of the GMin through the dissection of large number of elderly cadavers and to clarify the underlying mechanism of FI localized to a specific region. Materials and methods: Thirty-eight hips from 20 embalmed elder cadavers were dissected for verification of FI localization. The samples of three regions – the fat infiltrated region of the anterior part (FI), the region without FI (non-FI), and the posterior region – were harvested from nine hips for the histological fiber type assessment. Results: The FI area was distributed at 2.6°–38° from the anterior border within the anterior part, of which function is responsible for hip extension and internal rotation and is likely reduced by disuse following aging. The number of type I fibers was lowest in FI, followed by non-FI, while the number of type I fibers was highest in the posterior. Meanwhile, the number of type II fibers was equivalent across the three regions. Atrophic type II fibers were observed in overall samples of the three regions, and grouped atrophy, which is evidence of denervation, was observed in FI and non-FI samples. Type grouping, which suggests to be reinnervated, was found in the non-FI and posterior samples but very little in the FI samples. Conclusion: FI in the GMin in older adults restricted to deep within the anterior part is secondary to disuse and is strongly related to impaired denervation–reinnervation process. Keywords: gluteus minimus, fat infiltration, disuse, denervation, fiber typeTakano YKobayashi HYuri TYoshida SNaito AKiyoshige YDove Medical PressarticleGluteus minimusFat infiltrationDisuseDenervationCadaverGeriatricsRC952-954.6ENClinical Interventions in Aging, Vol Volume 13, Pp 1011-1017 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Gluteus minimus Fat infiltration Disuse Denervation Cadaver Geriatrics RC952-954.6
spellingShingle	Gluteus minimus Fat infiltration Disuse Denervation Cadaver Geriatrics RC952-954.6 Takano Y Kobayashi H Yuri T Yoshida S Naito A Kiyoshige Y Fat infiltration in the gluteus minimus muscle in older adults
description	Yuta Takano,1 Hiroto Kobayashi,2 Takuma Yuri,1 Saori Yoshida,2 Akira Naito,2 Yoshiro Kiyoshige1 1Graduate School of Health Science, Yamagata Prefectural University of Health Science, Yamagata, Japan; 2Department of Anatomy, Yamagata University Faculty of Medicine, Yamagata, Japan Purpose: Fat infiltration (FI) in the gluteus minimus muscle (GMin) has been reported as being restricted to the anterior part. The aim of this study was to verify whether FI is localized only to the anterior part of the GMin through the dissection of large number of elderly cadavers and to clarify the underlying mechanism of FI localized to a specific region. Materials and methods: Thirty-eight hips from 20 embalmed elder cadavers were dissected for verification of FI localization. The samples of three regions – the fat infiltrated region of the anterior part (FI), the region without FI (non-FI), and the posterior region – were harvested from nine hips for the histological fiber type assessment. Results: The FI area was distributed at 2.6°–38° from the anterior border within the anterior part, of which function is responsible for hip extension and internal rotation and is likely reduced by disuse following aging. The number of type I fibers was lowest in FI, followed by non-FI, while the number of type I fibers was highest in the posterior. Meanwhile, the number of type II fibers was equivalent across the three regions. Atrophic type II fibers were observed in overall samples of the three regions, and grouped atrophy, which is evidence of denervation, was observed in FI and non-FI samples. Type grouping, which suggests to be reinnervated, was found in the non-FI and posterior samples but very little in the FI samples. Conclusion: FI in the GMin in older adults restricted to deep within the anterior part is secondary to disuse and is strongly related to impaired denervation–reinnervation process. Keywords: gluteus minimus, fat infiltration, disuse, denervation, fiber type
format	article
author	Takano Y Kobayashi H Yuri T Yoshida S Naito A Kiyoshige Y
author_facet	Takano Y Kobayashi H Yuri T Yoshida S Naito A Kiyoshige Y
author_sort	Takano Y
title	Fat infiltration in the gluteus minimus muscle in older adults
title_short	Fat infiltration in the gluteus minimus muscle in older adults
title_full	Fat infiltration in the gluteus minimus muscle in older adults
title_fullStr	Fat infiltration in the gluteus minimus muscle in older adults
title_full_unstemmed	Fat infiltration in the gluteus minimus muscle in older adults
title_sort	fat infiltration in the gluteus minimus muscle in older adults
publisher	Dove Medical Press
publishDate	2018
url	https://doaj.org/article/9a736366f5b74d15853653dc9908b131
work_keys_str_mv	AT takanoy fatinfiltrationinthegluteusminimusmuscleinolderadults AT kobayashih fatinfiltrationinthegluteusminimusmuscleinolderadults AT yurit fatinfiltrationinthegluteusminimusmuscleinolderadults AT yoshidas fatinfiltrationinthegluteusminimusmuscleinolderadults AT naitoa fatinfiltrationinthegluteusminimusmuscleinolderadults AT kiyoshigey fatinfiltrationinthegluteusminimusmuscleinolderadults
_version_	1718399650149433344

Fat infiltration in the gluteus minimus muscle in older adults

Ejemplares similares