Normative reference values of handgrip strength for Brazilian older people aged 65 to 90 years: evidence from the multicenter Fibra-BR study - Reichenheim, Michael Eduardo; Lourenço, Roberto Alves; Nascimento, Janaína Santos; Moreira, Virgílio Garcia; Neri, Anita Liberalesso; Ribeiro, Rodrigo Martins; Lustosa, Lygia Paccini; Ferriolli, Eduardo (PLOS ONE, 2021)