Dutra Pereira, F., Oliveira Batista, W., dos Santos Claro Fuly, P., de Drummond Alves Junior, E. and Bezerra da Silva, E. (2017) “Physical activity and respiratory muscle strength in elderly: a systematic review”, Fisioterapia em Movimento (Physical Therapy in Movement), 27(1). doi: 10.1590/0103-5150.027.001.AR01.