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Patterns of Changes in Respiratory Muscle Strength over 1 Year in Non-Sarcopenia, Sarcopenia, and Severe Sarcopenia

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Publisher MDPI
Date 2022 Dec 23
PMID 36554450
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Abstract

In this prospective longitudinal cohort study, we explored the characteristics of older people with lower respiratory muscle strength, according to sarcopenia severity, over the course of 1 year. The maximum expiratory pressure (MEP), grip strength, walking speed, and skeletal muscle mass index of 58 participants (28 men, 30 women; mean age, 76.9 ± 7.7 years) were measured at baseline and at the 1-year follow-up. Participants were classified into a decreased MEP group ( = 29; MEP decreased by ≥10% after 1 year) and a non-decreased MEP group ( = 29; MEP decreased by <10%). Sarcopenia status in the mild direction at baseline was significantly associated with MEP decline after one year. Repeated two-way analysis of variance showed significant main effects of measurement time ( < 0.001) and severity of sarcopenia ( = 0.026), as well as a significant interaction effect ( = 0.006). Surprisingly, MEP decreased significantly in the non-sarcopenia and sarcopenia groups, but not in the severe sarcopenia group. Thus, individuals without sarcopenia and those with moderate sarcopenia at baseline are predisposed to MEP decline and should be closely monitored for signs of such decline and associated adverse events.

References
1.
Romer L, Polkey M . Exercise-induced respiratory muscle fatigue: implications for performance. J Appl Physiol (1985). 2007; 104(3):879-88. DOI: 10.1152/japplphysiol.01157.2007. View

2.
Satake S, Arai H . Preface. Geriatr Gerontol Int. 2020; 20 Suppl 1:5-6. DOI: 10.1111/ggi.13829. View

3.
Okazaki T, Ebihara S, Mori T, Izumi S, Ebihara T . Association between sarcopenia and pneumonia in older people. Geriatr Gerontol Int. 2019; 20(1):7-13. DOI: 10.1111/ggi.13839. View

4.
Dempsey J, Amann M, Romer L, Miller J . Respiratory system determinants of peripheral fatigue and endurance performance. Med Sci Sports Exerc. 2008; 40(3):457-61. DOI: 10.1249/MSS.0b013e31815f8957. View

5.
Yamada M, Arai H . Long-Term Care System in Japan. Ann Geriatr Med Res. 2020; 24(3):174-180. PMC: 7533196. DOI: 10.4235/agmr.20.0037. View