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Table 4 Grip and muscle strength before, after training and at follow-up

From: Muscle strength, physical fitness and well-being in children and adolescents with juvenile idiopathic arthritis and the effect of an exercise programme: a randomized controlled trial

  Exercise group n=26 Control group n=19
Before 3 months 6 months Before 3 months 6 months
Grip strength Right 157.9 (73.0) 173.4 (76.1) 174.4 (68.5) 197.1 (66.1) 208.8 (75.1) 216.9 (72.5)
  Left 150.5 (74.1) 149.1 (62.4) 155.1 (62.5) 185.4 (60.2) 185.1 (71.8) 194.0 (72.8)
Muscle group        
Shoulder abd Right 21.8 (10.3) 23.3 (10.9) 24.0 (11.8) 26.5 (10.9) 25.5 (8.8) 30.2 (8.6) †
  Left 21.9 (10.2) 24.0 (11.3) * 23.9 (11.1) 25.0 (8.7) 25.5 (7.7) 27.0 (7.7)
Elbow ext Right 21.6 (12.7) 21.9 (9.3) 23.4 (9.8) 26.0 (11.5) 25.4 (10.6) 26.7 (9.7)
  Left 21.1 (9.0) 22.2 (8.8) 23.0 (8.0) 24.9 (8.0) 25.8 (8.5) 26.3 (8.8)
Elbow flex Right 22.2 (12.9) 24.8 (10.8) 26.5 (12.6) * 31.0 (14.1) 31.8 (12.0) 33.7 (13.2)
  Left 21.1 (11.6) 23.5 (10.9) 24.6 (10.9) * 30.0 (10.9) 31.5 (12.2) 31.1 (10.8)
Hip ext Right 47.5 (21.4) 54.3 (22.4) * 49.1 (19.6) 66.7 (24.4) 64.0 (27.3) 60.7 (25.1)
  Left 47.3 (19.3) 56.1 (22.5) * 53.3 (20.4) 64.1 (20.1) 64.9 (25.0) 61.7 (22.9)
Hip flex Right 53.5 (20.7) 56.0 (21.7) 54.1 (21.9) 68.8 (25.5) 64.3 (22.4) 66.2 (21.6)
  Left 49.9 (17.9) 53.9 (19.4) 52.4 (20.1) 62.0 (21.4) 60.8 (17.0) 63.4 (18.9)
Hip abd Right 26.5 (13.6) 28.9 (15.1) 29.6 (10.6) 40.6 (18.3) 40.2 (15.5) 33.3 (9.7)
  Left 24.6 (12.3) 30.7 (15.3) * 32.9 (14.1) * 35.9 (12.3) 37.0 (14.1) 38.0 (12.8)
Knee ext Right 57.3 (21.5) 65.8 (22.3) * 67.5 (22.3) * 79.3 (19.2) 78.7 (21.9) 77.1 (20.9)
  Left 55.8 (22.8) 61.7 (18.0) * 65.9 (26.4) * 78.8 (18.3) 79.6 (20.3) 78.8 (18.1)
Dorsiflex Right 19.3 (5.2) 20.1 (6.3) 21.8 (6.1) * 23.8 (6.8) 22.1 (6.5) 25.2 (5.6) †
  Left 20.3 (5.5) 20.7 (6.7) 21.8 (5.8) 23.9 (6.5) 21.9 (4.8) 23.8 (5.0)
  1. * = statistically significant difference to measurement 1 (baseline) p<0.03.
  2. † = statistically significant difference to measurement 2 (after 12 week training period) p<0.03.
  3. Data in Nm, mean (SD).