Protective association of estimated cardiorespiratory fitness (eCRF) with incident frailty: a longitudinal analysis of the CHARLS and ELSA cohorts Publication date: October 2026 Source: Archives of Gerontology and Geriatrics, Volume 149 Author(s): Sijia Chen, Tingting Lu, Jin Yan, Linghuan Wang, Tianhu Wang, Cheng Qin, Renzheng Chen, Feng Cao Read the full article ›