Figure 2
From: Exercise training in childhood-onset systemic lupus erythematosus: a controlled randomized trial
Cardiorespiratory measurements before (PRE) and after (POST) the exercise training. Dotted lines represent mean data from the healthy control group at baseline. (A) Chronotropic reserve. (B) Absolute change in heart rate at the first minute after exercise (ΔHRR1). (C) Absolute change in heart rate at the second minute after exercise (ΔHRR2). TR C-SLE, trained patients with childhood-onset systemic lupus erythematosus; NT C-SLE, non-trained patients with childhood-onset systemic lupus erythematosus. Means with different letters are significantly different from each other: a, significant difference when compared with the healthy control group; b, no significant difference when compared with the healthy control group.