Higher and Lower Muscle Echo Intensity in Elderly Individuals Is Distinguished by Muscle Size, Physical Performance and Daily Physical Activity

A. Yoshiko; Y. Natsume; T. Makino; Takahiro Hayashi; Hiroyuki Umegaki; Yasuko Yoshida; Xian Wu Cheng; Masafumi Kuzuya; Koji Ishida; Teruhiko Koike; Yoshiharu Oshida; Hiroshi Akima

doi:10.1016/j.ultrasmedbio.2019.05.029

Higher and Lower Muscle Echo Intensity in Elderly Individuals Is Distinguished by Muscle Size, Physical Performance and Daily Physical Activity

A. Yoshiko, Y. Natsume, T. Makino, Takahiro Hayashi, Hiroyuki Umegaki, Yasuko Yoshida, Xian Wu Cheng, Masafumi Kuzuya, Koji Ishida, Teruhiko Koike, Yoshiharu Oshida, Hiroshi Akima

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

This study was performed to identify factors that discriminate muscle echo intensity (EI) among parameters of body composition, physical function and daily physical activity in elderly individuals. A total of 209 men and women (73.7 ± 2.8 y) were evaluated. EI was measured on ultrasonographic axial thigh muscle images. The participants were categorized into the low, mid and high EI groups. We measured the skeletal muscle mass index (SMI) and physical functions. The high EI group exhibited a significantly lower SMI, slower 5-m walking time and shorter 6-min walking distance than the low EI group and had a shorter moderate-intensity activity time than the mid EI group. As a result of the discriminant analysis, elderly individuals were categorized into EI groups by SMI, daily activity and physical function. The data indicate that morphologic and functional parameters and the daily activity level help to discriminate higher and lower muscle EI.

Original language	English
Pages (from-to)	2372-2380
Number of pages	9
Journal	Ultrasound in Medicine and Biology
Volume	45
Issue number	9
DOIs	https://doi.org/10.1016/j.ultrasmedbio.2019.05.029
Publication status	Published - 2019 Sept
Externally published	Yes

Keywords

Echo intensity
Elderly individuals
Muscle size
Physical activity
Physical function

ASJC Scopus subject areas

Radiological and Ultrasound Technology
Biophysics
Acoustics and Ultrasonics

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10.1016/j.ultrasmedbio.2019.05.029

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Yoshiko, A., Natsume, Y., Makino, T., Hayashi, T., Umegaki, H., Yoshida, Y., Cheng, X. W., Kuzuya, M., Ishida, K., Koike, T., Oshida, Y., & Akima, H. (2019). Higher and Lower Muscle Echo Intensity in Elderly Individuals Is Distinguished by Muscle Size, Physical Performance and Daily Physical Activity. Ultrasound in Medicine and Biology, 45(9), 2372-2380. https://doi.org/10.1016/j.ultrasmedbio.2019.05.029

Yoshiko, A, Natsume, Y, Makino, T, Hayashi, T, Umegaki, H, Yoshida, Y, Cheng, XW, Kuzuya, M, Ishida, K, Koike, T, Oshida, Y & Akima, H 2019, 'Higher and Lower Muscle Echo Intensity in Elderly Individuals Is Distinguished by Muscle Size, Physical Performance and Daily Physical Activity', Ultrasound in Medicine and Biology, vol. 45, no. 9, pp. 2372-2380. https://doi.org/10.1016/j.ultrasmedbio.2019.05.029

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title = "Higher and Lower Muscle Echo Intensity in Elderly Individuals Is Distinguished by Muscle Size, Physical Performance and Daily Physical Activity",

abstract = "This study was performed to identify factors that discriminate muscle echo intensity (EI) among parameters of body composition, physical function and daily physical activity in elderly individuals. A total of 209 men and women (73.7 ± 2.8 y) were evaluated. EI was measured on ultrasonographic axial thigh muscle images. The participants were categorized into the low, mid and high EI groups. We measured the skeletal muscle mass index (SMI) and physical functions. The high EI group exhibited a significantly lower SMI, slower 5-m walking time and shorter 6-min walking distance than the low EI group and had a shorter moderate-intensity activity time than the mid EI group. As a result of the discriminant analysis, elderly individuals were categorized into EI groups by SMI, daily activity and physical function. The data indicate that morphologic and functional parameters and the daily activity level help to discriminate higher and lower muscle EI.",

keywords = "Echo intensity, Elderly individuals, Muscle size, Physical activity, Physical function",

author = "A. Yoshiko and Y. Natsume and T. Makino and Takahiro Hayashi and Hiroyuki Umegaki and Yasuko Yoshida and Cheng, {Xian Wu} and Masafumi Kuzuya and Koji Ishida and Teruhiko Koike and Yoshiharu Oshida and Hiroshi Akima",

note = "Funding Information: The TOPICS study is supported by the Center of Innovation Program (COI STREAM); the Ministry of Education, Culture, Sports, Science and Technology (MEXT); and the Japan Science and Technology Agency (JST). The authors also thank the individuals who helped the ultrasound measurement (Dr. Akira Saito of The University of Tokyo, Dr. Ryosuke Ando of Japan Institute of Sports Sciences, Dr. Aya Tomita of Chukyo University and Ms. Madoka Ogawa of Nagoya University). Publisher Copyright: {\textcopyright} 2019 World Federation for Ultrasound in Medicine & Biology",

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doi = "10.1016/j.ultrasmedbio.2019.05.029",

language = "English",

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AU - Yoshiko, A.

AU - Natsume, Y.

AU - Makino, T.

AU - Hayashi, Takahiro

AU - Umegaki, Hiroyuki

AU - Yoshida, Yasuko

AU - Cheng, Xian Wu

AU - Kuzuya, Masafumi

AU - Ishida, Koji

AU - Koike, Teruhiko

AU - Oshida, Yoshiharu

AU - Akima, Hiroshi

N1 - Funding Information: The TOPICS study is supported by the Center of Innovation Program (COI STREAM); the Ministry of Education, Culture, Sports, Science and Technology (MEXT); and the Japan Science and Technology Agency (JST). The authors also thank the individuals who helped the ultrasound measurement (Dr. Akira Saito of The University of Tokyo, Dr. Ryosuke Ando of Japan Institute of Sports Sciences, Dr. Aya Tomita of Chukyo University and Ms. Madoka Ogawa of Nagoya University). Publisher Copyright: © 2019 World Federation for Ultrasound in Medicine & Biology

PY - 2019/9

Y1 - 2019/9

N2 - This study was performed to identify factors that discriminate muscle echo intensity (EI) among parameters of body composition, physical function and daily physical activity in elderly individuals. A total of 209 men and women (73.7 ± 2.8 y) were evaluated. EI was measured on ultrasonographic axial thigh muscle images. The participants were categorized into the low, mid and high EI groups. We measured the skeletal muscle mass index (SMI) and physical functions. The high EI group exhibited a significantly lower SMI, slower 5-m walking time and shorter 6-min walking distance than the low EI group and had a shorter moderate-intensity activity time than the mid EI group. As a result of the discriminant analysis, elderly individuals were categorized into EI groups by SMI, daily activity and physical function. The data indicate that morphologic and functional parameters and the daily activity level help to discriminate higher and lower muscle EI.

AB - This study was performed to identify factors that discriminate muscle echo intensity (EI) among parameters of body composition, physical function and daily physical activity in elderly individuals. A total of 209 men and women (73.7 ± 2.8 y) were evaluated. EI was measured on ultrasonographic axial thigh muscle images. The participants were categorized into the low, mid and high EI groups. We measured the skeletal muscle mass index (SMI) and physical functions. The high EI group exhibited a significantly lower SMI, slower 5-m walking time and shorter 6-min walking distance than the low EI group and had a shorter moderate-intensity activity time than the mid EI group. As a result of the discriminant analysis, elderly individuals were categorized into EI groups by SMI, daily activity and physical function. The data indicate that morphologic and functional parameters and the daily activity level help to discriminate higher and lower muscle EI.

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Higher and Lower Muscle Echo Intensity in Elderly Individuals Is Distinguished by Muscle Size, Physical Performance and Daily Physical Activity

Abstract

Keywords

ASJC Scopus subject areas

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