AIM: To define quadriceps strength cut-off points for both sexes to be used in the working diagnosis of sarcopenia in older Asian people, and to investigate the age-related declines of sarcopenia-related variables and correlations between those variables among community-dwelling older adults. METHODS: The present 3-year prospective study was a part of the Bangkok Longitudinal Study by Siriraj Hospital for Older Men and Women. Data on 2149 participants aged ≥ 60 years were included in this analysis. RESULTS: The quadriceps strength cut-off points, identified based on mobility decline over 2 years of follow up, were 18.0 kg for men and 16.0 kg for women. When these cut-off points were applied to the whole population aged ≥ 60 years (n = 950), the low quadriceps strength group had poorer results on all clinical variables when compared with the normal quadriceps strength group. Although nearly all of the sarcopenia-related variables declined over 2 years of follow up in both older men and women, more significant differences between age groups were seen in older women. Quadriceps strength had the highest degree of correlation with total lean body mass in all age groups (r = 0.550-0.584, P < 0.001), followed by the 6-min walk test in all age groups (r = 0.449-0.516, P < 0.001). CONCLUSIONS: The quadriceps strength cut-off points of 18.0 kg for older men and 16.0 kg for older women would be useful as a muscle strength measurement for use in any diagnostic algorithm; for example, sarcopenia diagnosis in older Asian people.
AIM: To define quadriceps strength cut-off points for both sexes to be used in the working diagnosis of sarcopenia in older Asian people, and to investigate the age-related declines of sarcopenia-related variables and correlations between those variables among community-dwelling older adults. METHODS: The present 3-year prospective study was a part of the Bangkok Longitudinal Study by Siriraj Hospital for Older Men and Women. Data on 2149 participants aged ≥ 60 years were included in this analysis. RESULTS: The quadriceps strength cut-off points, identified based on mobility decline over 2 years of follow up, were 18.0 kg for men and 16.0 kg for women. When these cut-off points were applied to the whole population aged ≥ 60 years (n = 950), the low quadriceps strength group had poorer results on all clinical variables when compared with the normal quadriceps strength group. Although nearly all of the sarcopenia-related variables declined over 2 years of follow up in both older men and women, more significant differences between age groups were seen in older women. Quadriceps strength had the highest degree of correlation with total lean body mass in all age groups (r = 0.550-0.584, P < 0.001), followed by the 6-min walk test in all age groups (r = 0.449-0.516, P < 0.001). CONCLUSIONS: The quadriceps strength cut-off points of 18.0 kg for older men and 16.0 kg for older women would be useful as a muscle strength measurement for use in any diagnostic algorithm; for example, sarcopenia diagnosis in older Asian people.
Authors: Lorenzo M Donini; Luca Busetto; Stephan C Bischoff; Tommy Cederholm; Maria D Ballesteros-Pomar; John A Batsis; Juergen M Bauer; Yves Boirie; Alfonso J Cruz-Jentoft; Dror Dicker; Stefano Frara; Gema Frühbeck; Laurence Genton; Yftach Gepner; Andrea Giustina; Maria Cristina Gonzalez; Ho-Seong Han; Steven B Heymsfield; Takashi Higashiguchi; Alessandro Laviano; Andrea Lenzi; Ibolya Nyulasi; Edda Parrinello; Eleonora Poggiogalle; Carla M Prado; Javier Salvador; Yves Rolland; Ferruccio Santini; Mireille J Serlie; Hanping Shi; Cornel C Sieber; Mario Siervo; Roberto Vettor; Dennis T Villareal; Dorothee Volkert; Jianchun Yu; Mauro Zamboni; Rocco Barazzoni Journal: Obes Facts Date: 2022-02-23 Impact factor: 4.807