Bern University of Applied Sciences, Health Division/Physiotherapy, Bern, Switzerland.
University of Bern, Graduate School for Health Sciences, Bern, Switzerland.
Neurourol Urodyn. 2018 Feb;37(2):609-618. doi: 10.1002/nau.23340. Epub 2017 Jul 4.
Impact activity like running is associated with an increase in intra-abdominal pressure which needs to be sufficiently countered by pelvic floor muscle (PFM) activity to secure continence. The aim of this study was to investigate and compare PFM kinematics in continent and incontinent women during running.
Three-dimensional position and orientation was measured with the electromagnetic tracking device trakSTAR™. One sensor was attached to the vaginal probe and a second one was secured to the subjects' skin at the height of the second sacral vertebrae. Cranial-caudal and forward-backward displacement of the vaginal probe was measured during 10 sec running on a treadmill at the speeds 7, 11, and 15 km/h. Displacement data from 100 ms before to 300 ms after heel-strike were analyzed.
Nineteen incontinent and twenty-seven continent women were included in this study. Before the foot touched the ground caudal translation and forward rotation of the vaginal probe was detected, whereas after heel-strike a cranial translation and backward rotation was measured. Cranial-caudal translation as well as backward-forward-rotation did not differ significantly between continent and incontinent subjects for the three speeds. Analysis of maximum displacements showed significantly increasing displacement with increasing speeds.
Kinematic measurements during impact activity of running demonstrated caudal translation before and cranial translation after heel-strike. The hypothesis of caudal translation through impact activity was not confirmed. Patterns seem similar between continent and incontinent subjects. Associations between the direction of displacement and muscle action of PFMs remain assumptions.
像跑步这样的冲击活动会增加腹内压，这需要盆底肌 (PFM) 活动来充分抵消，以确保尿控。本研究的目的是调查和比较跑步时尿失禁和非尿失禁女性的 PFM 运动学。
使用电磁跟踪装置 trakSTAR™ 测量三维位置和方向。一个传感器附着在阴道探头，另一个传感器固定在受试者第二骶骨高度的皮肤上。在跑步机上以 7、11 和 15km/h 的速度跑步 10 秒期间，测量阴道探头的头-尾向和前-后向位移。分析从足跟着地前 100 毫秒到后 300 毫秒的位移数据。
本研究共纳入 19 名尿失禁和 27 名非尿失禁女性。在脚触地之前，检测到阴道探头的尾向平移和前向旋转，而在足跟着地后，测量到头向平移和向后旋转。对于三种速度，非尿失禁和尿失禁受试者之间的头-尾向平移和向后-向前-旋转没有显著差异。最大位移分析显示，随着速度的增加，位移显著增加。
跑步冲击活动期间的运动学测量显示，足跟着地前有尾向平移，足跟着地后有头向平移。通过冲击活动导致尾向平移的假设未得到证实。在非尿失禁和尿失禁受试者之间，模式似乎相似。位移方向与 PFM 肌肉活动之间的关联仍然是假设。
