Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa-city, 920-8641, Japan.
Kanazawa Advanced Medical Center, Kanazawa, Japan.
Sci Rep. 2022 Apr 30;12(1):7076. doi: 10.1038/s41598-022-11202-y.
The foot exercises "rock-paper-scissors" and "towel gathering" are widely used in patients with lower limb disorders; however, there are no detailed reports on muscle activity during such training. We quantitatively evaluated the difference in skeletal muscle activity between the two exercises using positron emission tomography. Eight university student athletes were included. Four participants each were assigned to the foot rock-paper-scissors and towel gathering groups. Participants in each group underwent continuous training for 15 min, and received an intravenous injection of 18F-fluorodeoxyglucose. After retraining for 15 min, participants rested for 45 min. Regions of interest were defined in 25 muscles. The standardized uptake value (SUV) in the trained limb was compared with that in the non-trained control limb. SUVs increased in four skeletal muscles (tibialis anterior, peroneus brevis, extensor hallucis brevis, and abductor hallucis) in the rock-paper-scissors group, and in four muscles (flexor digitorum longus, extensor hallucis brevis, extensor digitorum brevis, and quadratus plantae) in the towel gathering group. Thus, foot rock-paper-scissors and towel gathering involved skeletal muscles related to the medial longitudinal arch and toe grip strength, respectively. Given that the two exercises target different skeletal muscles, they should be taught and implemented according to their respective purposes.
足部运动“石头剪刀布”和“毛巾收集”在下肢疾病患者中广泛应用；然而，目前尚无关于这些训练中肌肉活动的详细报道。我们使用正电子发射断层扫描（PET）对两种运动的骨骼肌活动差异进行了定量评估。纳入 8 名大学生运动员。将每个参与者随机分配到足部石头剪刀布和毛巾收集组。每组参与者分别进行 15 分钟的连续训练，并接受静脉注射 18F-氟脱氧葡萄糖。15 分钟再训练后，参与者休息 45 分钟。在 25 块肌肉中定义感兴趣区域。比较训练侧与非训练对照侧的标准化摄取值（SUV）。在石头剪刀布组中，四个骨骼肌（胫骨前肌、腓骨短肌、短伸肌和外展肌）的 SUV 增加，而在毛巾收集组中，四个肌肉（趾长屈肌、短伸肌、短伸肌和足底外侧肌）的 SUV 增加。因此，足部石头剪刀布和毛巾收集分别涉及与内侧纵弓和脚趾抓地力相关的骨骼肌。鉴于这两种运动针对不同的骨骼肌，应根据各自的目的进行教学和实施。
