Nakaji Shigeyuki, Tokunaga Shoji, Sakamoto Juichi, Todate Masahiro, Shimoyama Tadashi, Umeda Takashi, Sugawara Kazuo
Department of Hygiene, Hirosaki University School of Medicine, 5 Zaifu-cho, Japan.
Eur J Nutr. 2002 Dec;41(6):244-8. doi: 10.1007/s00394-002-0380-4.
There is a paucity of accurate data regarding any association in the general population between defecation and lifestyle factors such as diet, exercise, physique, and childbirth.
To evaluate the effects of such lifestyle factors on defecation among regional residents of Japan.
Residents (n = 1,699) of northern Japan, aged over 40 years, were surveyed in 1995 using a questionnaire to assess their lifestyle factors (diet, beverage consumption, exercise, physique, and childbirth), and examining their defecation status. We evaluated the relationship between these lifestyle factors and defecation using logistic regression analysis. The authors used four measures (defecation frequency, subjective defecation state, subjective fecal properties, and fecal consistency) and assigned the subjects to a group defined by their defecatory status: constipation, diarrhea, or normal, depending on the responses of the subjects to all four criteria.
The tendency for constipation correlated positively with age in males ( p = 0.130), although this trend was not observed in females ( p = 0.641). Of the dietary factors examined, only rice, which accounts for the largest proportion of daily dietary fiber intake in Japan, demonstrated a preventive effect on constipation in both sexes ( p = 0.050 in males and 0.003 in females). Walking was a preventive factor for constipation among males ( p = 0.049), and alcohol also inhibited constipation among males ( p = 0.007).
These results suggest that exercise, such as walking, and a high intake of dietary fiber, such as rice, were useful in the maintenance of defecation.
关于普通人群中排便与饮食、运动、体型及分娩等生活方式因素之间的关联，准确数据匮乏。
评估此类生活方式因素对日本地区居民排便的影响。
1995年，对日本北部40岁以上的1699名居民进行了问卷调查，以评估他们的生活方式因素（饮食、饮料摄入、运动、体型和分娩情况），并检查他们的排便状况。我们使用逻辑回归分析评估这些生活方式因素与排便之间的关系。作者采用了四项指标（排便频率、主观排便状态、主观粪便性质和粪便稠度），并根据受试者对所有四项标准的回答，将其分为便秘、腹泻或正常排便状态组。
男性便秘倾向与年龄呈正相关（p = 0.130），不过女性未观察到这种趋势（p = 0.641）。在所研究的饮食因素中，在日本日常膳食纤维摄入量占比最大的大米，对男女便秘均有预防作用（男性p = 0.050，女性p = 0.003）。步行是男性便秘的预防因素（p = 0.049），酒精也可抑制男性便秘（p = 0.007）。
这些结果表明，步行等运动以及大米等高膳食纤维摄入，有助于维持正常排便。
