Nakata Akimi, Osuka Satoshi, Ishida Tomoya, Saito Yuki, Samukawa Mina, Kasahara Satoshi, Koshino Yuta, Oikawa Naoki, Tohyama Harukazu
Faculty of Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Department of Rehabilitation, Hokkaido University Hospital, Sapporo 060-8648, Japan.
Healthcare (Basel). 2024 Feb 21;12(5):514. doi: 10.3390/healthcare12050514.
Core exercises on an unstable surface increase trunk muscle activity, especially for local muscle groups. Therefore, there is a possibility that exercises on an unstable surface would be effective in the rehabilitation of non-specific chronic low back pain (NSCLBP). The present study assessed trunk muscle activities during bridge exercise on the floor and two kinds of unstable surfaces, i.e., a balance ball and the BOSU, for individuals with and without NSCLBP. This study enrolled 17 and 18 young participants with and without NSCLBP, respectively. In the balance ball condition, both groups showed a significant increase in erector spinae activity compared to the floor condition, and the increase in activity was significantly greater in the NSCLBP group than in the control group ( = 0.038). On the other hand, neither group showed significant changes in trunk muscle activities in the BOSU condition compared to those in the floor condition. The control group showed a significant increase in internal oblique/transversus abdominis activity under the balance ball condition ( = 0.020), whereas there were no significant changes in these muscle activities between the balance ball and floor conditions in the NSCLBP group. The present study showed that participants with NSCLBP significantly increased muscle activity of the erector spinae, one of the global back muscles, on the balance ball in spite of small effects on muscle activity of the internal oblique/transversus abdominis, which is one of the local abdominal muscles. Therefore, attention should be paid to the application of bridge exercises on the balance ball for individuals with NSCLBP.
在不稳定表面上进行核心训练可增加躯干肌肉活动，尤其是对局部肌肉群。因此，在不稳定表面上进行训练有可能对非特异性慢性下腰痛（NSCLBP）的康复有效。本研究评估了有和没有NSCLBP的个体在地板上以及两种不稳定表面（即平衡球和BOSU）上进行桥式训练时的躯干肌肉活动。本研究分别招募了17名有NSCLBP的年轻参与者和18名无NSCLBP的年轻参与者。在平衡球条件下，与地板条件相比，两组的竖脊肌活动均显著增加，且NSCLBP组的活动增加显著大于对照组（P = 0.038）。另一方面，与地板条件相比，两组在BOSU条件下的躯干肌肉活动均未显示出显著变化。对照组在平衡球条件下腹内斜肌/腹横肌活动显著增加（P = 0.020），而NSCLBP组在平衡球和地板条件之间这些肌肉活动没有显著变化。本研究表明，有NSCLBP的参与者在平衡球上时，作为整体背部肌肉之一的竖脊肌的肌肉活动显著增加，尽管对作为局部腹部肌肉之一的腹内斜肌/腹横肌的肌肉活动影响较小。因此，对于有NSCLBP的个体，应注意在平衡球上进行桥式训练的应用。
