Wolpern Ali E, de Gennaro Johanna D, Brusseau Timothy A, Byun Wonwoo, Egger Marlene J, Hitchcock Robert W, Nygaard Ingrid E, Sheng Xiaoming, Shaw Janet M
Department of Health, Kinesiology, and Recreation, University of Utah College of Health, Salt Lake City, United States.
Department of Biomedical Engineering, University of Utah College of Engineering, Salt Lake City, United States.
J Clin Exerc Physiol. 2020 Sep;9(3):97-103. doi: 10.31189/2165-6193-9.3.97. Epub 2020 Oct 16.
Exercise increases intra-abdominal pressure (IAP) acutely, which may impact the pelvic floor of women. IAP during exercise demonstrates high variability among women but is not routinely assessed. Assessing less invasive measures related to IAP during exercise may facilitate study of how IAP impacts the pelvic floor.
The objective of this study was to investigate the relationship of heart rate and rating of perceived exertion (RPE) with IAP during a standard treadmill test. We describe the trend of IAP by predicted aerobic fitness during incremental exercise. IAP was measured using a validated transducer placed in the upper vagina. Heart rate and RPE were collected during the first 3 stages of the standard Bruce treadmill protocol. Relationships of heart rate and RPE with IAP were determined by Pearson correlation coefficients. Predicted aerobic fitness values for each participant were ranked in tertiles with IAP by treadmill stage.
Twenty-four women participated in this study (mean age: 24.7 (5.4) years; body mass index: 22.5 (2.2) kg/m). There were significant relationships between heart rate and IAP (r= 0.67, p < 0.001) and RPE and IAP (r= 0.60, p < 0.001) across treadmill stages. Tertiles of predicted aerobic fitness and IAP displayed similar trends as other exercise measures during incremental exercise, such as, heart rate and ventilation.
Heart rate and RPE could be used as proxy measures of IAP during incremental exercise. Aerobic fitness may help explain IAP variability in women and provide context for future research on IAP and pelvic floor health.
运动可使腹内压（IAP）急剧升高，这可能会影响女性的盆底。运动期间的IAP在女性中表现出很大的变异性，但并未常规评估。评估运动期间与IAP相关的侵入性较小的指标可能有助于研究IAP如何影响盆底。
本研究的目的是调查在标准跑步机测试期间心率和自觉运动强度（RPE）与IAP之间的关系。我们描述了递增运动期间根据预测的有氧适能得出的IAP趋势。使用放置在上阴道的经过验证的传感器测量IAP。在标准布鲁斯跑步机方案的前3个阶段收集心率和RPE。心率和RPE与IAP之间的关系通过Pearson相关系数确定。根据跑步机阶段，将每个参与者的预测有氧适能值与IAP一起按三分位数排名。
24名女性参与了本研究（平均年龄：24.7（5.4）岁；体重指数：22.5（2.2）kg/m）。在整个跑步机阶段，心率与IAP（r = 0.67，p < 0.001）以及RPE与IAP（r = 0.60，p < 0.001）之间存在显著关系。在递增运动期间，预测的有氧适能三分位数和IAP显示出与其他运动指标（如心率和通气）相似的趋势。
在递增运动期间，心率和RPE可作为IAP的替代指标。有氧适能可能有助于解释女性IAP的变异性，并为未来关于IAP与盆底健康的研究提供背景。
