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Table 1 Lean Body Composition Data. Data are presented as mean ± standard deviation

From: Twelve weeks supplementation with an extended-release caffeine and ATP-enhancing supplement may improve body composition without affecting hematology in resistance-trained men

Variable Group Pre Week 4 Week 8 Week 10 Post p
CSA (cm2) PLA 3.60 ± 1.57 3.85 ± 1.49a 3.73 ± 1.32 3.61 ± 1.27 3.52 ± 1.39bc <0.001
TRT 3.75 ± 1.15 4.13 ± 1.14a 4.31 ± 1.16*a 4.56 ± 1.09*abc 4.82 ± 1.10*abcd
MT (cm) PLA 5.50 ± 0.72 5.47 ± 0.50 5.53 ± 0.74 5.43 ± 0.66c 5.55 ± 0.68d <0.001
TRT 5.33 ± 0.63 5.54 ± 0.73 5.75 ± 0.64*a 5.77 ± 0.61*ab 5.82 ± 0.54*ab
LST (kg) PLA 65.3 ± 8.1 65.2 ± 6.5 65.7 ± 6.6 66.2 ± 6.8 65.5 ± 6.9 0.62
TRT 62.3 ± 8.5 63.3 ± 8.7 63.5 ± 8.7 64.1 ± 8.4 63.4 ± 8.5
Body Weight (kg) PLA 83.7 ± 10.5 86.3 ± 10.6 86.1 ± 11.5 87.3 ± 12.1 86.4 ± 11.7 1.00
TRT 81.8 ± 14.0 84.0 ± 13.7 84.1 ± 15.0 84.9 ± 15.5 84.6 ± 16.4
R Leg LST (kg) PLA 10.6 ± 1.7 10.9 ± 1.9 10.9 ± 1.5 11.2 ± 1.7 10.9 ± 1.3 0.39
TRT 10.3 ± 1.5 10.5 ± 1.6 10.6 ± 1.5 10.6 ± 1.6 10.8 ± 1.7
L Leg LST (kg) PLA 10.5 ± 1.5 10.8 ± 1.7 10.8 ± 1.4 11.1 ± 1.6 10.7 ± 1.1 0.35
TRT 10.2 ± 1.4 10.6 ± 1.5 10.8 ± 1.6 10.7 ± 1.6 10.7 ± 1.7
R Arm LST (kg) PLA 4.7 ± 0.6 4.5 ± 0.5 4.3 ± 0.5 4.2 ± 0.5 4.1 ± 0.5 0.84
TRT 4.4 ± 0.8 4.2 ± 0.7 3.9 ± 0.5 3.8 ± 0.5 3.7 ± 0.5
L Arm LST (kg) PLA 4.5 ± 0.5 4.5 ± 0.4 4.1 ± 0.5 4.0 ± 0.4 4.0 ± 0.5 0.61
TRT 4.3 ± 0.7 4.1 ± 0.6 3.8 ± 0.5 3.7 ± 0.5 3.7 ± 0.4
Trunk LST (kg) PLA 30.8 ± 4.3 30.2 ± 2.9 31.2 ± 3.4 31.5 ± 3.5 31.6 ± 4.6 0.27
TRT 29.2 ± 5.6 29.9 ± 4.9 30.3 ± 4.8 31.3 ± 4.6 30.5 ± 4.6
  1. *indicates significantly different from PLA at the corresponding time point. The p-value is derived from an ANOVA and representative of a main effect for group by time. Significant within-group time differences are indicated by a(different from pre), b(different from week 4), c(different from week 8), and d(different from week 10) for variables with a significant group x time interaction