Liu F, Kondo T, Toda Y
Research Center of Health, Physical Fitness and Sports, Nagoya University, Japan.
Int J Sports Med. 1993 Nov;14(8):465-7. doi: 10.1055/s-2007-1021212.
The effects of two weeks of reduced activity on gastrointestinal transit time were studied in nine healthy elderly subjects, who had engaged in regular recreational exercise for ten years. Physical inactivity was achieved by a restriction of all kinds of physical exercise and by staying at home. Mouth-to-cecum transit time was measured by a breath hydrogen method and mean total and segmental colonic transit times by a radiopaque marker method. The mouth-to-cecum transit time did not change during the period of physical inactivity. The mean total colonic transit time (10.9 +/- 2.7 h) was significantly prolonged to 19.5 +/- 2.9 hours during the physical inactivity (p < 0.01). This prolongation was due to slowed transit through the right and the left segments of the colon. The transit time of the rectosigmoid segment of the colon was not affected. In conclusion, the period of physical inactivity prolonged the colonic transit time in active elderly subjects.
在九名健康的老年受试者中研究了两周活动减少对胃肠传输时间的影响，这些受试者已进行了十年的常规休闲锻炼。通过限制各种体育锻炼和居家来实现身体不活动。采用呼气氢法测量口至盲肠传输时间，采用不透X线标志物法测量平均全结肠和节段性结肠传输时间。在身体不活动期间，口至盲肠传输时间没有变化。平均全结肠传输时间（10.9±2.7小时）在身体不活动期间显著延长至19.5±2.9小时（p<0.01）。这种延长是由于结肠右段和左段的传输减慢所致。结肠直肠乙状结肠段的传输时间未受影响。总之，在活跃的老年受试者中，身体不活动期延长了结肠传输时间。
