Department of Physical Therapy and Rehabilitation, Trakya University, Faculty of Health Science, 22030 Edirne, Turkey.
Department of Physical Therapy and Rehabilitation, Trakya University, Faculty of Health Science, 22030 Edirne, Turkey; Department of Physical Therapy and Rehabilitation, Marmara University, Faculty of Health Science, 34854 İstanbul, Turkey.
Gait Posture. 2021 Mar;85:88-95. doi: 10.1016/j.gaitpost.2021.01.019. Epub 2021 Jan 23.
The effects of the menstrual cycle and primary dysmenorrhea (PD) on phase-related cognitive and physical functions are controversial. This study was carried out to examine whether women with PD showed a different physical function or dual-tasking response than women without PD at times other than menstruation.
Women with or without PD were recruited for the study. Individuals assessed on the first day of the menstruation and the day they reported themselves as well being (feeling good day-FGD). Zebris © FDM Type Force Platform was used to evaluate postural stability. Individuals have were asked to perform to a 3-step balance test protocol; the first session: comfortable upright standing; the second session: standing with a motor task; the third session: standing with a cognitive task (counting backward). Correctly calculated numbers were also recorded.
The number of correct answers given by individuals during the cognitive dual-task was similar on the first day of menstruation and FGD (p > 0.05). In the control group, no difference was observed between the first days of menstruation and the evaluations on FGD days with dual-task (p > 0.05). In individuals with PD, there was no difference between the measurements at different times (p > 0.05). However, in the assessment with the motor dual-task on the first day of menstruation; postural sway increased (p < 0,05). In FDG measurement; distortion in postural stability was observed with the cognitive task (p < 0,05). In the assessments performed on the first day of menstruation, there was no difference in any parameters between the groups (p > 0.05). In the measurements made on FGD day with the cognitive task; there was a difference between the groups (p < 0,05). Individuals with PD had higher postural sway.
This study showed that the primary dysmenorrhea is not only a problem for females during menstruation, primary dysmenorrhea causes impaired ability of the individual to perform dual-tasking and continuously affects postural stability.
月经周期和原发性痛经（PD）对相关阶段的认知和身体功能的影响存在争议。本研究旨在探讨 PD 女性在非月经期是否表现出与非 PD 女性不同的身体功能或双重任务反应。
招募了有或没有 PD 的女性参加研究。在月经第一天和自我报告感觉良好的日子（FGD）对个体进行评估。使用 Zebris©FDM 型力平台评估姿势稳定性。个体被要求执行 3 步平衡测试方案；第一阶段：舒适直立站立；第二阶段：站立时进行运动任务；第三阶段：站立时进行认知任务（倒数）。正确计算的数字也被记录下来。
在认知双重任务中，个体在月经第一天和 FGD 给出的正确答案数量相似（p>0.05）。在对照组中，在月经第一天和 FGD 日进行双重任务评估之间没有观察到差异（p>0.05）。在 PD 个体中，不同时间的测量值之间没有差异（p>0.05）。然而，在月经第一天进行的运动双重任务评估中，姿势摆动增加（p<0.05）。在 FDG 测量中，认知任务观察到姿势稳定性的扭曲（p<0.05）。在月经第一天进行的评估中，两组之间在任何参数上均无差异（p>0.05）。在 FGD 日进行的认知任务测量中，两组之间存在差异（p<0.05）。PD 个体的姿势摆动更大。
本研究表明，原发性痛经不仅是女性在月经期间的一个问题，原发性痛经还会导致个体执行双重任务的能力受损，并持续影响姿势稳定性。
