La Trobe Rural Health School, La Trobe University, Bendigo, Australia.
La Trobe Rural Health School, La Trobe University, Bendigo, Australia.
J Bodyw Mov Ther. 2021 Oct;28:131-137. doi: 10.1016/j.jbmt.2021.07.006. Epub 2021 Jul 14.
A comparison of Linea Alba (LA) length and engagement of the Transverse Abdominis (TrA), External Oblique (EO) and Internal Oblique (IO) between core-orientated and lower back orientated exercises (e.g. glute bridge and hip extension) is lacking. Therefore, the aim of this study was to compare the length of the LA and the engagement of TrA, EO and IO when performing the prone plank, bird dog, dead bug, lateral plank, glute bridge and hip extension.
Thirteen apparently healthy participants volunteered to this study. Ultrasound scanning of the anterior and antero-lateral abdominal walls at baseline and whilst performing prone plank, bird dog, dead bug, lateral plank, glute bridge and hip extension exercises was performed. LA length and thickness of the TrA, EO and IO were measured from ultrasound images.
LA length (p = 0.77) and TrA thickness (p = 0.23) were not different between exercises. EO thickness was larger for the lateral plank compared to the bird dog (p = 0.01, d = 1.73), glute bridge (p < 0.01, d = 2.64), and hip extension (p < 0.01, d = 1.89). The dead bug was also larger in comparison to the glute bridge (p < 0.01, d = 2.05) and to the hip extension (p = 0.01, d = 1.45). For the IO thickness, the lateral plank was larger than the bird dog (p = 0.03, d = 1.21) and the dead bug (p = 0.04, d = 1.12).
No difference was observed between exercises for the length of the LA or for the thickness of the TrA, which suggests that this muscle is similarly engaged in the assessed exercises, leading to a consistent stretch for the LA.
缺乏针对核心定向和下背部定向练习（如臀桥和髋关节伸展）的白线（LA）长度和横向腹肌（TrA）、外部斜肌（EO）和内部斜肌（IO）参与度的比较。因此，本研究的目的是比较在进行俯趴平板支撑、鸟狗式、死虫式、侧平板支撑、臀桥和髋关节伸展时 LA 的长度和 TrA、EO 和 IO 的参与度。
13 名健康志愿者参与了这项研究。在基线和进行俯趴平板支撑、鸟狗式、死虫式、侧平板支撑、臀桥和髋关节伸展运动时，对前腹壁和前外侧腹壁进行了超声扫描。从超声图像中测量 LA 长度和 TrA、EO 和 IO 的厚度。
各练习之间 LA 长度（p=0.77）和 TrA 厚度（p=0.23）没有差异。与鸟狗式（p=0.01，d=1.73）、臀桥（p<0.01，d=2.64）和髋关节伸展（p<0.01，d=1.89）相比，EO 厚度在侧平板支撑中更大。与臀桥（p<0.01，d=2.05）和髋关节伸展（p=0.01，d=1.45）相比，死虫式的 EO 厚度也更大。对于 IO 厚度，侧平板支撑大于鸟狗式（p=0.03，d=1.21）和死虫式（p=0.04，d=1.12）。
各练习之间 LA 长度或 TrA 厚度没有差异，这表明该肌肉在评估的练习中同样参与，导致 LA 持续拉伸。
