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Table 2 Pre- and post-intervention means±SD, marginal means for changes, and 95%CIs for strength and body composition in Study 1

From: Programming and supervision of resistance training leads to positive effects on strength and body composition: results from two randomised trials of community fitness programmes

Variable Pre- (Mean ± SD) Post- (Mean ± SD) Change (Marginal Means) 95% Confidence Interval for Change
Strength (kg)
 CONT 67.0 ± 22.4 72.2 ± 37.0 4.4 −8.9 to 17.7
 FREE 71.0 ± 27.4 91.4 ± 56.4 18.4 8.2 to 28.5
 PAC 71.4 ± 28.0 79.3 ± 36.2 7.2 −5.9 to 20.3
 STRUC 66.4 ± 24.4 87.0 ± 45.5 16.0 5.9 to 26.0
BF%
 CONT 34.2 ± 11.5 34.3 ± 11.7 0.1 −1.9 to 2.1
 FREE 34.7 ± 14.8 34.2 ± 14.9 −0.5 −2.1 to 1.1
 PAC 34.9 ± 13.0 34.2 ± 13.4 −0.8 −2.7 to 1.3
 STRUC 35.7 ± 16.0 32.9 ± 15.1 −2.5 −4.1 to −0.9
BF Mass (kg)
 CONT 24.8 ± 13.4 23.1 ± 9.3 −1.5 −3.1 to 0.2
 FREE 24.4 ± 11.9 23.7 ± 11.3 −0.8 −2.1 to 0.6
 PAC 25.1 ± 9.8 24.4 ± 9.0 −0.6 −2.2 to 1.1
 STRUC 24.7 ± 10.8 23.1 ± 10.3 −1.3 −2.6 to 0.0
LBM (kg)
 CONT 49.0 ± 18.6 47.1 ± 18.6 −1.8 −4.5 to 0.9
 FREE 48.9 ± 18.2 48.5 ± 18.2 −0.4 −2.6 to 1.8
 PAC 50.3 ± 18.4 51.4 ± 18.9 1.2 −1.5 to 3.9
 STRUC 48.4 ± 19.4 50.7 ± 18.1 2.3 0.1 to 4.5
  1. CONT control, FREE free/unstructured exercise, PAC physical activity counselling, STRUC structured exercise programme