Change in sedentary time was significantly and beneficially associated with changes in postprandial log-transformed plasma insulin ( = @ ; @ % CI , @-@ @ ; P = @ ) , C-peptide ( = @ ; @ % CI , @-@ @ ; P = @ ) , and glucose concentration ( = @ ; @ % CI , @-@ @ ; P = @ ) , independent of changes in MVPA , waist circumference , and other confounders .