Petter Rodrigues Marina, Berube Marie-Eve, Collins Grace, McLean Linda
School of Rehabilitation Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, Canada.
Int Urogynecol J. 2025 Mar 21. doi: 10.1007/s00192-025-06122-0.
Pad tests have been used to assess urinary incontinence (UI) during exercise, but they do not account for confounding factors such as perspiration. The objectives of this study were to describe pad weight gain among runners with and without running-induced stress UI (RI-SUI), who complete a standardized treadmill-based pad test, and to investigate the sensitivity and specificity of pad weight gain as a measure of urine leakage.
This was an observational cohort study. We recruited adult female runners with and without RI-SUI. Participants performed a 38-min treadmill-based running protocol while wearing a pre-weighted incontinence pad. Pad weight gain was described by group, then compared between groups using the Mann-Whitney U test. A receiver-operating characteristic (ROC) curve was used to evaluate the sensitivity and specificity of different cutoff values for pad weight gain.
Data from 74 runners (20 with and 54 without RI-SUI) were included. The median pad weight gain was significantly higher in the incontinent group (24.20 g; range 3.90-166.30 g) than in the continent group (3.80 g; range 0.20-19.96 g; p < 0.001). When using a 9.35 g cutoff, the ROC curve predicted urine leakage with 70% sensitivity and 88% specificity, while a 0.25 g cutoff would achieve 100% sensitivity and 19.98 g would achieve 100% specificity.
Pad weight gain during a treadmill-based pad test should be interpreted cautiously, as values up to 19.96 g may result from perspiration or other fluids.
护垫试验已被用于评估运动期间的尿失禁（UI），但它们没有考虑诸如出汗等混杂因素。本研究的目的是描述在完成基于标准化跑步机的护垫试验的有和没有跑步引起的压力性尿失禁（RI-SUI）的跑步者中护垫重量的增加情况，并研究护垫重量增加作为尿液泄漏指标的敏感性和特异性。
这是一项观察性队列研究。我们招募了有和没有RI-SUI的成年女性跑步者。参与者在佩戴预先称重的失禁护垫的同时进行了38分钟的基于跑步机的跑步方案。按组描述护垫重量增加情况，然后使用曼-惠特尼U检验在组间进行比较。使用受试者操作特征（ROC）曲线来评估护垫重量增加的不同临界值的敏感性和特异性。
纳入了74名跑步者的数据（20名有RI-SUI，54名没有RI-SUI）。失禁组的护垫重量增加中位数（24.20克；范围3.90 - 166.30克）显著高于非失禁组（3.80克；范围0.20 - 19.96克；p < 0.001）。当使用9.35克的临界值时，ROC曲线预测尿液泄漏的敏感性为70%，特异性为88%，而0.25克的临界值将实现100%的敏感性，19.98克将实现100%的特异性。
基于跑步机的护垫试验期间护垫重量的增加应谨慎解释，因为高达19.96克的值可能是由出汗或其他液体导致的。
