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Prevalence, Incidence, and Associated Factors of Possible Sarcopenia in Community-Dwelling Chinese Older Adults: A Population-Based Longitudinal Study.

ABSTRACT: Purpose: This study aimed to assess the prevalence, incidence, and associated factors of possible sarcopenia in a nationwide representative sample of the community-dwelling older Chinese population. Methods:This study used the data of participants aged 60 years and over from the China Health and Retirement Longitudinal Study (CHARLS). Data on participants from three waves (2011-2015) of CHARLS were extracted. Possible sarcopenia was defined as low muscle strength or low physical performance, based on the Asian Working Group for Sarcopenia 2019 consensus. We first described baseline prevalence and four-year incidence of possible sarcopenia. Then multiple logistic regression and multivariable parametric proportional hazard model with Weibull distribution were used to examine the association of risk factors with baseline prevalence and four-year incidence of possible sarcopenia, respectively. Results:The prevalence of possible sarcopenia was 46.0%. The four-year incidence of possible sarcopenia was 11.9 per 100 person-years. Multivariable analysis revealed that advanced age and depressive symptoms were associated with increased prevalence of possible sarcopenia, while receiving education and moderate or high physical activity were associated with a lower risk of possible sarcopenia prevalence. For incidence, only advanced age was associated with an increased risk of possible sarcopenia incidence. Conclusion:Our study revealed the substantial burden of possible sarcopenia and related risk factors in community-dwelling settings in China. It highlighted the importance of early detection and intervention in this subclinical group for the prevention of sarcopenia.

SUBMITTER: Chen Z

PROVIDER: S-EPMC8784542 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BackgroundThis study aimed to determine how increased muscle mass and athletic performance in adolescence contribute to the prevention of sarcopenia in old age, accounting for the type of sport and the continuation of exercise habits. We compared the prevalence of sarcopenia, its components (low appendicular skeletal muscle mass, low muscle strength, and low physical function), and musculoskeletal pain using data from two cohorts: former athletes who competed in the 1964 Tokyo Olympics and general community-dwelling older adults living in Kashiwa City, Chiba Prefecture.MethodsWe analysed the data from 101 former Olympic athletes (mean age ± SD: 75.0 ± 4.4 years; 26% female) and 1529 general community-dwelling older adults (74.1 ± 5.5 years; 49% women). We assessed sarcopenia (defined by the Asian Working Group for Sarcopenia revised in 2019) and musculoskeletal pain and considered potential confounding factors such as demographic characteristics, for example, sex and exercise habits.ResultsThe prevalence of sarcopenia was significantly lower in former Olympic athletes than general older adults (odds ratios [OR], 0.49; 95% confidence interval [CI], 0.20-0.94), especially with regard to superior appendicular skeletal muscle mass and muscle strength. This effect was more pronounced in individuals who continued their exercise and in athletes whose sporting discipline was classified as having a high exercise intensity. Conversely, low physical function (OR, 2.60; 95% CI, 1.16-6.07) and musculoskeletal pain (OR, 2.22; 95% CI, 1.24-3.97) were more prevalent in former Olympic athletes and in athletes who competed in sports with physical contact.ConclusionsWe observed a lower prevalence of sarcopenia and superior appendicular skeletal muscle mass and strength in the former Olympic athletes, especially among those that continued their exercise habits and those in sports with high exercise intensity. Conversely, low physical function and higher musculoskeletal pain scores were more prevalent in former Olympic athletes, especially among athletes who competed in sports with physical contact. Our results warrant further promotion of exercise in adolescence and beyond as well as providing safety education, which is required to prevent the development of sarcopenia and musculoskeletal pain in old age.

Dataset Information

Prevalence, Incidence, and Associated Factors of Possible Sarcopenia in Community-Dwelling Chinese Older Adults: A Population-Based Longitudinal Study.

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