Lai Shijun, Zhu Changdong, Zhou Xiaoqing, Zeng Qingfeng, Huang Lihua, Cao Xiaodong, Zhou Qiang, Zhong Yuhua, Huang Jinjing, Liu Jianlan, Zeng Guifang, Chen Hong
Gastroenterology Department, The Second Affiliated Hospital of Gannan Medical University, Ganzhou, China.
Department of Endocrinology and Metabolism, Ganzhou Hospital of Guangdong Provincial People's Hospital, Ganzhou Municipal Hospital, Ganzhou, China.
J Neurogastroenterol Motil. 2024 Jul 30;30(3):322-331. doi: 10.5056/jnm23134.
BACKGROUND/AIMS: Previous studies have shown that diet and physical activity can influence constipation. However, the combined effect of diet and physical activity on constipation remains unclear.
Constipation was defined based on stool consistency and frequency, while overall diet quality was assessed using Healthy Eating Index (HEI)-2015 scores. Participants were categorized into low (metabolic equivalent [MET]-min/wk < 500) and high physical activity groups (MET-min/wk ≥ 500). The association between diet and constipation across physical activity groups was analyzed using survey logistic regression and restricted cubic splines.
Higher HEI-2015 scores were associated with reduced constipation risk in the high physical activity group when constipation was defined by stool consistency (odds ratio [OR], 0.98; 95% confidence interval [CI], 0.97-0.99). However, in the low physical activity group, increased HEI-2015 scores did not significantly affect constipation risk (OR, 1.01; 95% CI, 0.97-1.05). Similar results were found when constipation was defined based on stool frequency. In the high physical activity group, increased HEI-2015 scores were significantly associated with a reduced constipation risk (OR, 0.96; 95% CI, 0.94-0.98). Conversely, in the low physical activity group, increased HEI-2015 scores did not affect the risk of constipation (OR, 0.96; 95% CI, 0.90-1.03).
Our findings suggest that a higher HEI-2015 score is negatively associated with constipation among individuals with high physical activity levels but not among those with low physical activity levels. This association was consistent when different definitions of constipation were used. These results highlight the importance of combining healthy diet with regular physical activity to alleviate constipation.
背景/目的：先前的研究表明，饮食和身体活动会影响便秘。然而，饮食和身体活动对便秘的综合影响仍不明确。
根据粪便的稠度和频率定义便秘，同时使用2015年健康饮食指数（HEI）评分评估总体饮食质量。参与者被分为低身体活动组（代谢当量[MET]-分钟/周<500）和高身体活动组（MET-分钟/周≥500）。使用调查逻辑回归和受限立方样条分析身体活动组间饮食与便秘之间的关联。
当根据粪便稠度定义便秘时，在高身体活动组中，较高的HEI-2015评分与便秘风险降低相关（比值比[OR]，0.98；95%置信区间[CI]，0.97-0.99）。然而，在低身体活动组中，HEI-2015评分升高并未显著影响便秘风险（OR，1.01；95%CI，0.97-1.05）。当根据粪便频率定义便秘时，发现了类似结果。在高身体活动组中，HEI-2015评分升高与便秘风险降低显著相关（OR，0.96；95%CI，0.94-0.98）。相反，在低身体活动组中，HEI-2015评分升高并未影响便秘风险（OR，0.96；95%CI，0.90-1.03）。
我们的研究结果表明，较高的HEI-2015评分与高身体活动水平个体的便秘呈负相关，但与低身体活动水平个体无关。当使用不同的便秘定义时，这种关联是一致的。这些结果凸显了将健康饮食与定期身体活动相结合以缓解便秘的重要性。
