Table 1. Average (± SD) distance (km) of physical activity and effective sizes for each group across the lifespan. 3-5 mo 6-8 mo 9-11 mo 12-14 mo 15-17 mo 18-21 mo Sham 5.22 (2.43) 3.41 (1.4) 2.78 (.91) 2.20 (.79) 1.68 (.77) 1.52 (.78) CFL 4.22 (1.93) 2.69 (1.13) 2.48 (.98) 2.20 (.77) 1.78 (.85) 1.45 (.77) Mean difference 1.22 km .79km .3 km 0 km -.1km .07km Effect size .413 .512 .305 .006 .113 .090 ATF/CFL 3.02 (1.62 2.58 (1.23) 2.01 (.86) 1.78 (.76) 1.41 (.66) 1.15 (.57) Mean difference 2.2km .83km 1.6km .42 km .27 km .37 km Effect size .906 .597 .846 .528 .354 .475