Rudek-Zeprzałka Magdalena, Opala-Berdzik Agnieszka, Cebula Maciej, Gruszczyńska Katarzyna, Bilewicz Jagoda, Chmielewska Daria
Department of Physical Medicine, Academy of Physical Education in Katowice, Mikołowska 72, 40-065, Katowice, Poland.
Institute of Physiotherapy and Health Sciences, Department of Physiotherapy in Internal Diseases, Academy of Physical Education in Katowice, Mikołowska 72, 40-065, Katowice, Poland.
Sci Rep. 2025 Aug 24;15(1):31088. doi: 10.1038/s41598-025-16781-0.
In physiotherapy for pregnancy-related diastasis recti abdominis, the inter-recti distance (IRD) measurement using ultrasound imaging is typically performed with the patient in supine position. Recently, a standing position, which is considered a functional body position, has been proposed for measurement. However, before adopting standing examination as routine, it is important to study how the linea alba behaves in this position in healthy nulliparas. The main objectives of the study were to compare (1) IRD at two measurement sites between standing and supine positions, and (2) IRD between the two sites within each position. IRD measurements were taken using ultrasound imaging in 27 nulliparas, at the upper edge of the umbilicus (umbilical site) and midway between the superior umbilical border and the xiphoid process (umbilical-xiphoid site), in both supine and standing positions. Photographs were taken to monitor participants' standing posture. At the umbilical-xiphoid site, the mean IRD was greater when standing than when supine (p = 0.004); no significant difference was observed at the umbilical site (p = 0.07). The mean IRD at the umbilicus was greater than at the umbilical-xiphoid site (p = 0.00001). The IRD at the midpoint between the superior umbilical border and the xiphoid process changed when assuming the standing position, which was not observed at the superior umbilical border. The IRD was greater in the umbilical region compared to the area further away from the umbilicus cranially. Our findings provide baseline data for future research on symptomatic populations and for establishing normative IRD values in the standing position, which could aid in developing clinical guidelines for assessing diastasis recti abdominis.
在妊娠相关腹直肌分离的物理治疗中，使用超声成像测量腹直肌间距（IRD）时，患者通常处于仰卧位。最近，有人提出采用站立位进行测量，因为站立位被认为是一种功能性体位。然而，在将站立位检查作为常规检查之前，研究白线在健康未生育女性的该体位下的表现非常重要。本研究的主要目的是比较：（1）站立位和仰卧位时两个测量部位的IRD；（2）每个体位下两个部位之间的IRD。对27名未生育女性在仰卧位和站立位时，使用超声成像在脐上缘（脐部）和脐上缘与剑突之间的中点（脐 - 剑突部）测量IRD。拍摄照片以监测参与者的站立姿势。在脐 - 剑突部，站立位时的平均IRD大于仰卧位（p = 0.004）；在脐部未观察到显著差异（p = 0.07）。脐部的平均IRD大于脐 - 剑突部（p = 0.00001）。从仰卧位变为站立位时，脐上缘与剑突之间中点的IRD发生了变化，而脐上缘未观察到这种变化。与脐部上方离脐较远的区域相比，脐部区域的IRD更大。我们的研究结果为未来对有症状人群的研究以及建立站立位IRD的规范值提供了基线数据，这有助于制定评估腹直肌分离的临床指南。
