Lean body mass and the cardiorespiratory phenotype: An ethnic‐specific relationship in Hans Chinese women and men

Autor: Meihan Guo, Candela Diaz‐Canestro, Nicola Riccardo Pugliese, Francesco Paneni, David Montero
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Cachexia, Sarcopenia and Muscle, Vol 15, Iss 3, Pp 963-974 (2024)
Druh dokumentu: article
ISSN: 2190-6009
2190-5991
DOI: 10.1002/jcsm.13464
Popis: Abstract Background Lean body mass (LBM) and the functional capacity of cardiovascular (CV) and respiratory systems constitute a female‐specific relationship in European–American individuals. Whether this recent finding be extrapolated to the world's largest ethnic group, that is, Hans Chinese (HC, a population characterized by low LBM), is unknown. Methods Healthy HC adults (n = 144, 50% ♀) closely matched by sex, age and physical activity were included. Total and regional (leg, arm and trunk) LBM and body composition were measured via dual‐energy X‐ray absorptiometry. Cardiac structure, stiffness, central/peripheral haemodynamics and peak O2 consumption (VO2peak) were assessed via transthoracic echocardiography and pulmonary gas analyses at rest and during exercise up to peak effort. Regression analyses determined the sex‐specific relationship of LBM with cardiac and aerobic phenotypes. Results Total and regional LBM were lower and body fat percentage higher in women compared with men (P
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