Ouellet L L, Turner T R, Pond S, McLaughlin H, Knorr S
Clin Nurs Res. 1996 Nov;5(4):428-40. doi: 10.1177/105477389600500405.
The addition of wheat fiber in the diet of post-surgical orthopedic patients as a means of preventing constipation was studied using a quasi-experimental design. It was hypothesized that a 20 gm supplement of All Bran and natural bran would promote spontaneous bowel movements, reduce the incidence of constipation, and thus decrease the need for elimination interventions. The results show that the study group had more spontaneous bowel movements and required fewer elimination interventions than did the control group.
采用准实验设计研究了在骨科手术后患者饮食中添加小麦纤维作为预防便秘手段的效果。研究假设，补充20克全麸麦和天然麸皮会促进自主排便，降低便秘发生率，从而减少排便干预的需求。结果显示，与对照组相比，研究组的自主排便次数更多，排便干预需求更少。
