Abstract
[Purpose] The first purpose of this study was to evaluate the cough-induced energy expenditure (EE), and the second purpose of this study was to examine the difference in the cough-induced EE according to the frequency and the body position. [Subjects] Eighteen healthy students (age 22.2 ± 0.4) participated in this study. [Methods] Cough was induced two times continuously in the TLC position (1 set). EEs were measured for 10 sets, 20 sets and 30 sets of cough using an expiratory gas monitor in the chair sitting, the semi-recumbent, and the recumbent positions. [Results] EEs in the sitting position increased significantly in 10 sets and 20 sets of cough, EEs in the semi-recumbent and the recumbent positions increased significantly in 10 sets, 20 sets, and 30 sets of cough. Mean cough-induced EE was 6.39 ± 0.50 (ml/kg/min) and the increase rate of the cough-induced EE was 62% from resting EE. [Summary] The increase rate of the cough-induced EE from resting EE was 62%. There was no difference in the cough-induced EE among the three body positions.
