approached significancep = 0.09
In this regard, we further measured cardiac sympathetic activity using the systolic time (ST) [ 30 ] to determine whether autonomic neuropathy was involved, and the results showed that the ST decreased in the AC-T group (approached significance in time effect, p = 0.09; Table 2 ), suggesting a greater increase in cardiac sympathetic beta-adrenergic activity after AC-T treatment.