Correlation between total ATP and glycogen contents during linear glycogen resynthesis. This linear step lasted until 6 hr and 8 hr in G and G+B groups, respectively. For each time post force-feeding, the glycogen content is expressed according to the total ATP content, the lowest values correspond to the shortest time and the highest values to the longest time. m ± SEM. n varied from 6 to 12 for each delay. Isocaloric (7.28 cal) force-feeding (expressed per g body weight) consisted of 18.2 mg glucose or 14 mg glucose + 1.9 mg butyrate.