Skip to main content

Advertisement

Table 2 Exercise tolerance and cardiorespiratory measurements before and after the exercise training

From: Exercise training in childhood-onset systemic lupus erythematosus: a controlled randomized trial

Variable C-SLE trained (n= 10) C-SLE non-trained (n= 9) Control (n= 10)
Time-to-exhaustion, minutes    
PRE 10.1 (2.2)a 9.7 (1.6)a 13.7 (2.7)b
POST 12.8 (2.4)b 10.1 (1.8)a ---
Resting heart rate, bpm    
PRE 102.6 (10.3)a 106.1 (12.1)a 90.5 (15.7)b
POST 86.2 (13.8)b 110.6 (8.4)a ---
Peak heart rate, bpm    
PRE 178.2 (18.3)a 177.6 (17.4)a 195.8 (8.9)a
POST 183.6 (10.5)a 178.1 (18.6)a ---
Peak VO2, ml/Kg/min    
PRE 27.7 (6.1)a 25.7 (3.1)a 39.9 (7.3)b
POST 31.8 (8.0)b 25.8 (4.2)a ---
Peak speed (Km/h)    
PRE 4.4 (0.6)a 4.2 (0.5)a 5.4 (0.9)b
POST 5.2 (0.8)b 4.3 (0.5)a ---
Chronotropic reserve, %    
PRE 75.5 (18.7)a 74.8 (17.3)a 96.6 (8.2)b
POST 87.1 (9.0)b* 74.1 (18.9)a ---
Heart rate, Δ%    
Rest to VAT    
PRE 29.8 (16.6)a 25.3 (12.0)a 60.0 (24.8)b
POST 56.3 (18.7)b 17.0 (9.5)a ---
Rest to RCP    
PRE 53.9 (13.7)a 54.9 (24.9)a 97.3 (35.9)b
POST 97.4 (28.6)b 42.8 (17.4)a ---
Rest to Peak    
PRE 75.3 (24.8)a 68.9 (22.9)a 122.6 (42.1)b
POST 117.7 (34.3)b 61.5 (16.6)a ---
Heart rate recovery, ΔHRR    
ΔHRR1    
PRE 25.5 (14.9)a 26.6 (10.0)a 40.2 (6.9)b
POST 41.5 (10.0)b 26.3 (8.0)a ---
ΔHRR2    
PRE 36.6 (10.2)a 35.6 (11.8)a 57.8 (8.9)b
POST 62.2 (13.7)b 39.8 (9.7)a ---
  1. Data are expressed as means (SD) (mixed model for repeated measures). Relative change (Δ%) for heart rate was calculated for the intervals between rest to ventilator anaerobic threshold (VAT), rest to respiratory compensation point (RCP), and rest to peak of exercise. Absolute change (Δ) was used to calculate the difference between heart rate at peak exercise and at the first (ΔHRR1) and second minutes (ΔHRR2) after the exercise test. Means with different letters are significantly different from each other (P < 0.05, between- or within-group comparisons). *P = 0.06, within-group comparison. C-SLE, childhood-onset systemic lupus erythematosus; PRE, pre-intervention (baseline), POST, post-intervention; Peak, peak exercise; VO2, oxygen consumption.