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Published in: The journal of nutrition, health & aging 4/2021

01-04-2021 | Sarcopenia

Respiratory Sarcopenia and Sarcopenic Respiratory Disability: Concepts, Diagnosis, and Treatment

Authors: A. Nagano, Hidetaka Wakabayashi, K. Maeda, Y. Kokura, S. Miyazaki, T. Mori, D. Fujiwara

Published in: The journal of nutrition, health & aging | Issue 4/2021

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Abstract

The condition of muscle fiber atrophy and weakness that occurs in respiratory muscles along with systemic skeletal muscle with age is known as respiratory sarcopenia. The Japanese Working Group of Respiratory Sarcopenia of the Japanese Association of Rehabilitation Nutrition narratively reviews these areas, and proposes the concept and diagnostic criteria. We have defined respiratory sarcopenia as “whole-body sarcopenia and low respiratory muscle mass followed by low respiratory muscle strength and/or low respiratory function.” Respiratory sarcopenia can be caused by various factors such as aging, decreased activity, undernutrition, disease, cachexia, and iatrogenic causes. We have also created an algorithm for diagnosing respiratory sarcopenia. Respiratory function decreases with age in healthy older people, along with low respiratory muscle mass and strength. We have created a new term, “Presbypnea,” meaning a decline in respiratory function with aging. Minor functional respiratory disability due to aging, such as that indicated by a modified Medical Research Council level 1 (troubled by shortness of breath when hurrying or walking straight up hill), is an indicator of presbypnea. We also define sarcopenic respiratory disability as “a disability with deteriorated respiratory function that results from respiratory sarcopenia.” Sarcopenic respiratory disability is diagnosed if respiratory sarcopenia is present with functional disability. Cases of respiratory sarcopenia without functional disability are diagnosed as “at risk of sarcopenic respiratory disability.” Functional disability is defined as a modified Medical Research Council grade of 2 or more. Rehabilitation nutrition, treatment that combines rehabilitation and nutritional management, may be adequate to prevent and treat respiratory sarcopenia and sarcopenic respiratory disability.
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Metadata
Title
Respiratory Sarcopenia and Sarcopenic Respiratory Disability: Concepts, Diagnosis, and Treatment
Authors
A. Nagano
Hidetaka Wakabayashi
K. Maeda
Y. Kokura
S. Miyazaki
T. Mori
D. Fujiwara
Publication date
01-04-2021
Publisher
Springer Paris
Published in
The journal of nutrition, health & aging / Issue 4/2021
Print ISSN: 1279-7707
Electronic ISSN: 1760-4788
DOI
https://doi.org/10.1007/s12603-021-1587-5

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