Fig. 2

Activity of creatine kinase (CK; a), absolute neutrophil count (ANC; b), perceived muscle pain measured using the visual analogue scale (VAS; c), and the range of motion of the knee joint (ROM; d) assessed prior to and after four sets of unilateral eccentric knee extensions that were performed until volitional muscle failure either with (open squares) or without (filled circles) blood flow restriction. Data are presented as means with 95% confidence intervals. No significant group by time interactions were observed for CK, ANC, VAS, and ROM. Therefore, asterisks above horizontal lines spanning adjacent bars indicate that this measurement time point significantly different from pre, collapsed across groups