Safety and possible effects of low-intensity resistance training associated with partial blood flow restriction in polymyositis and dermatomyositis - Mattar, Melina Andrade; Gualano, Bruno; Perandini, Luiz Augusto; Shinjo, Samuel Katsuyuki; Lima, Fernanda Rodrigues; Sá-Pinto, Ana Lúcia; Roschel, Hamilton (Arthritis Research and Therapy, 2014)