Department of Physiotherapy, University College of Northern Denmark (UCN) Selma Lagerløfs Vej 2, 9220 Aalborg East, Denmark. Electronic address: https://twitter.com/mortenstoeve.
Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Fredrik Bajers Vej 7D, 9220, Aalborg East, Denmark.
J Bodyw Mov Ther. 2024 Jul;39:32-37. doi: 10.1016/j.jbmt.2024.02.003. Epub 2024 Feb 27.
This study aimed to investigate the effect of sex on regional and widespread pain sensitivity following acute bouts of stretching and to investigate the acute effect of stretching on regional and widespread pain sensitivity following stretching.
73 healthy adults (36 females; mean age 25.6 ± 6.7 years) with an age range from 19 to 62 years were recruited for this experimental study. Regional and distant pain pressure pain thresholds, passive knee extension range of motion and passive resistive torque were measured before and 30 s after four bouts of 30-s static muscle stretching of the knee flexors with 20-s rest between bouts.
No significant sex differences were found for pressure pain thresholds (p > 0.132), range of motion (p = 0.446) or passive resistive torque (p = 0.559) between pre-stretch and post-stretch measures. There were significant increases in pressure pain thresholds (p = 0.010), range of motion (p = 0.001) and passive resistive torque (p = 0.007) between pre-stretch and post-stretch measures.
Muscle stretching significantly decreased regional and widespread pain sensitivity, indicating that central pain-modulating mechanisms are engaged during muscle stretching, resulting in stretch-induced hypoalgesia. Moreover, the results showed that the effect of stretching on regional and widespread pain sensitivity is not sex-specific.
本研究旨在探讨急性伸展运动后性别对区域性和广泛性疼痛敏感性的影响，并探讨伸展运动对伸展后区域性和广泛性疼痛敏感性的急性影响。
本实验研究共招募了 73 名健康成年人（36 名女性；平均年龄 25.6±6.7 岁，年龄范围为 19 至 62 岁）。在 4 次 30 秒的膝关节屈肌静态肌肉伸展后，分别测量了区域和远处疼痛压力疼痛阈值、被动膝关节伸展幅度和被动阻力扭矩，两次伸展之间休息 20 秒。
在伸展前和伸展后的测量中，压力疼痛阈值（p>0.132）、运动幅度（p=0.446）或被动阻力扭矩（p=0.559）方面，男女之间没有显著的性别差异。压力疼痛阈值（p=0.010）、运动幅度（p=0.001）和被动阻力扭矩（p=0.007）在伸展前和伸展后的测量之间均有显著增加。
肌肉伸展显著降低了区域性和广泛性的疼痛敏感性，这表明在肌肉伸展过程中涉及到中枢疼痛调节机制，导致伸展引起的痛觉减退。此外，结果表明，伸展对区域性和广泛性疼痛敏感性的影响不受性别影响。
