Table 2: A comparison of position specific differences in body composition and resting energy expenditure during pre-season camp.

Variable Pre Post Change p value
Mean SD Mean SD Mean SD
Body Mass (kg)
Linemen 119.17 10.35 118.34 11.19 -0.83 1.86 T 0.15
Non Linemen 88.12 11.08 87.92 11.3 -0.21 0.96 G <0.001
Total 99.08 18.55 98.66 18.53 -0.43 1.32 GxT 0.374
Fat-Free Mass (kg)
Linemen 86.82 7.22 85.09 7.45 -1.73 0.37 T <0.001*
Non Linemen 75.88 6.77 75.45 6.70 -0.43 0.74 G 0.01*
Total 79.74 8.60 78.85 8.2 -0.89 0.89 GxT <0.001*
Fat Mass (kg)
Linemen 32.35 11.41 33.25 12.26 0.90 1.74 T 0.099
Non Linemen 12.25 6.1 12.47 6.10 0.22 0.93 G <0.001*
Total 19.34 12.73 19.80 13.23 0.46 1.26 GxT 0.306
Body Fat %
Linemen 26.78 7.65 27.68 8.10 0.90 0.96 T 0.024*
Non Linemen 13.41 5.33 13.70 5.06 0.29 0.92 G 0.001*
Total 18.13 8.92 18.64 9.15 0.51 0.95 GxT 0.219
Resting Energy Expenditure (kcal)
Linemen 2,803 189 2,578 236 -223.0 308.4 T .093
Non Linemen 2,342 201 2,345 234 3.27 200.1 G 0.002*
Total 2,505 294 2428 255 -76.6 259.0 GxT 0.085

*Signifies p<0.05.
Repeated measures ANOVA for body comp and REE values by position group.