MORE COMPLICATED THAN IT LOOKS: THE VAGARIES OF CALCULATING INTRA-ABDOMINAL PRESSURE
MORE COMPLICATED THAN IT LOOKS: THE VAGARIES OF CALCULATING INTRA-ABDOMINAL PRESSURE
复制标题
DOI：
10.1519/jsc.0b013e31828b8e4c
复制
发表时间：
2013-11-01
影响因子：
3.2
通讯作者：
Hitchcock, Robert W.
中科院分区：
文献类型：
--
作者：
Hamad, Nadia M.;Shaw, Janet M.;Hitchcock, Robert W.
有盆底疾病的妇女应限制可引起高腹内压（IAP）的活动，如举重。在活动期间评估IAP的标准化程序缺乏，通常只关注可变定义的最大IAP。我们在这篇方法文章中的目的是建立计算最大IAP的最佳策略，并将曲线下面积和面积的第一力矩作为理解IAP生物效应的潜在有用措施。13名女性在佩戴阴道内压力传感器的情况下完成了一系列活动。我们首先利用3位女性的数据对各种策略进行了启发式分析。似乎最能代表最大IAP的测量方法是根据活动的不同，使用自上而下的方法确定的3、5或10个最高值的平均值，使用Matlab计算机软件编写的算法，峰值间隔至少1秒，然后我们将该策略与文献中通常报道的其他策略进行比较，使用来自另外10名志愿者的数据进行定量分析。使用自顶向下方法计算的最大IAP与单个峰值或所有峰值的平均值相比，在某些（但不是所有）活动中有所不同。我们还计算了曲线下的面积，它允许时间分量，以及面积的第一矩，它在称重压力振幅时保持时间分量。我们使用计算机生成的正弦波验证了评估IAP的方法。我们为IAP提供了评估曲线下最大面积和面积第一力矩的标准化方法，以改善未来在运动科学中对这一临床相关指标的报道和应用。
Activities thought to induce high intra-abdominal pressure (IAP), such as lifting weights, are restricted in women with pelvic floor disorders. Standardized procedures to assess IAP during activity are lacking and typically only focus on maximal IAP variably defined. Our intent in this methods article is to establish the best strategies for calculating maximal IAP and to add area under the curve and first moment of the area as potentially useful measures in understanding biologic effects of IAP. Thirteen women completed a range of activities while wearing an intravaginal pressure transducer. We first analyzed various strategies heuristically using data from 3 women. The measure that seemed to best represent maximal IAP was an average of the 3, 5, or 10 highest values, depending on activity, determined using a top-down approach, with peaks at least 1 second apart using algorithms written for Matlab computer software, we then compared this strategy with others commonly reported in the literature quantitatively using data from 10 additional volunteers. Maximal IAP calculated using the top-down approach differed for some, but not all, activities compared with the single highest peak or to averaging all peaks. We also calculated area under the curve, which allows for a time component, and first moment of the area, which maintains the time component while weighing pressure amplitude. We validated methods of assessing IAP using computer-generated sine waves. We offer standardized methods for assessing maximal area under the curve and first moment of the area for IAP to improve future reporting and application of this clinically relevant measure in exercise science.