Linek Pawel, Saulicz Edward, Wolny Tomasz, Myśliwiec Andrzej
Department of Kinesitherapy and Special Methods in Physiotherapy, The Jerzy Kukuczka Academy of Physical Education in Katowice, Mikolowska 40-065, Poland.
J Sport Health Sci. 2017 Mar;6(1):118-124. doi: 10.1016/j.jshs.2015.10.002. Epub 2015 Oct 23.
An impact of regular physical activity (RPA) on the abdominal muscles may be significant when comparing various symptomatic groups. However, there is lack comprehensive information in this field. The objective of this study was to assess the lateral abdominal wall at rest and during abdominal drawing-in manoeuvre in adolescent physically active girls in different body positions.
One hundred and forty-four female students, 13-17 years of age, participated in the study. Participants were divided into 2 groups based on a physical activity (PA) statement. Measurements of the thickness of the abdominal muscles at rest and during abdominal drawing-in manoeuvre were made in the supine and standing positions by ultrasound imaging.
Compared to the control group, activities of the obliquus internus and transversus abdominis muscles were higher in the regular PA group by 8.9% (95%CI: 3.1-14.7) and 36% (95%CI: 19.1-47.5), respectively. In the RPA group, the transversus abdominis preferential activation ratio was greater by 0.03 (95%CI: 0.01-0.04), and the contraction ratio was greater by a mean value of 0.35 (95%CI: 0.18-0.46).
RPA does not have any effect on the resting thickness of the abdominal muscles in the supine and standing positions. Girls performing RPA have a greater ability to perform an independent activation and greater contractions of the transversus abdominis.
在比较不同症状组时，规律体育活动（RPA）对腹部肌肉的影响可能很显著。然而，该领域缺乏全面的信息。本研究的目的是评估不同身体姿势下，处于休息状态以及进行收腹动作时，青少年体育活动活跃女孩的侧腹壁情况。
144名13 - 17岁的女学生参与了该研究。根据体育活动（PA）声明将参与者分为两组。通过超声成像在仰卧位和站立位测量休息状态以及收腹动作时腹部肌肉的厚度。
与对照组相比，规律PA组腹内斜肌和腹横肌的活动分别高出8.9%（95%CI：3.1 - 14.7）和36%（95%CI：19.1 - 47.5）。在RPA组中，腹横肌的优先激活率高出0.03（95%CI：0.01 - 0.04），收缩率平均高出0.35（95%CI：0.18 - 0.46）。
RPA对仰卧位和站立位时腹部肌肉的休息厚度没有任何影响。进行RPA的女孩具有更强的独立激活腹横肌和使其更大程度收缩的能力。
