Autonomic nervous activities before and after defecation.

Abstract

(a, b) Changes in sympathetic nerve activities before and after defecation were evaluated by the sum of Δlow frequency/high frequency (LF/HF) and the sum of LF/HF, respectively. (c, d) Changes in parasympathetic nerve activities before and after defecation were evaluated by the sum of ΔHF and the sum of HF, respectively. Data represents the median. Statistical significance was calculated by Mann–Whitney test (*p < 0.05).</p