Integrative Laboratory of Exercise and Applied Physiology (iLEAP), Department of Health, Kinesiology, and Sport, College of Education and Professional Studies, University of South Alabama, Mobile, AL, USA.
Integrative Laboratory of Exercise and Applied Physiology (iLEAP), Department of Health, Kinesiology, and Sport, College of Education and Professional Studies, University of South Alabama, Mobile, AL, USA; Department of Physical Therapy, College of Allied Health, University of South Alabama, Mobile, AL, USA.
J Bodyw Mov Ther. 2024 Apr;38:254-262. doi: 10.1016/j.jbmt.2024.01.006. Epub 2024 Jan 17.
The purpose of this study was to compare physiological responses to myofascial release (MFR) and passive limb movement (PLM).
Nineteen (23 ± 2.6yrs) adults (10 men and 9 women) completed two experiments on separate days: MFR and PLM. Participation included collecting ultrasound images, blood pressure, and heart rate (HR) as well as performing a vascular occlusion test (VOT). The VOT assessed muscle tissue oxygenation (StO) with near-infrared spectroscopy. Experiments consisted of moving the upper limb to release subtle barriers of resistance in the muscle/fascia (MFR) and passive, assisted range of motion (PLM).
There was a significantly (p = 0.012) greater decrease in HR following MFR (-7.3 ± 5.2 BPM) than PLM (-1.3 ± 0.9 BPM). There was an equivalent change in brachial blood flow (-17.3 ± 23.0 vs. -11.9 ± 14.9 mL min; p = 0.37) and vascular conductance (-19.3 ± 31.1 vs. -12.4 ± 15.3 mL min mmHg; p = 0.38). Microvascular responses differed between the experiments such that MFR exhibited greater area under the curve (AUC, 1503 ± 499.1%∙s vs. 1203 ± 411.1%∙s; p = 0.021) and time to maximum StO (40.0 ± 8.4s vs. 35.8 ± 7.3s; p = 0.009).
As evidenced by HR, MFR induced greater parasympathetic activity than PLM. The greater AUC and time to StO following MFR suggested a spillover effect to induce prolonged hyper-saturation. These results may be of interest to those investigating possible MFR-related rehabilitative benefits.
本研究旨在比较肌筋膜松解(MFR)和被动肢体运动(PLM)的生理反应。
19 名成年人(10 名男性和 9 名女性)在两天内分别完成了两项实验:MFR 和 PLM。参与包括收集超声图像、血压和心率(HR)以及进行血管闭塞试验(VOT)。VOT 使用近红外光谱评估肌肉组织氧合(StO)。实验包括移动上肢以释放肌肉/筋膜中的细微阻力障碍(MFR)和被动辅助的运动范围(PLM)。
与 PLM(-1.3±0.9 BPM)相比,MFR 后 HR 显著(p=0.012)下降(-7.3±5.2 BPM)。肱动脉血流(-17.3±23.0 与-11.9±14.9 mL min;p=0.37)和血管传导性(-19.3±31.1 与-12.4±15.3 mL min mmHg;p=0.38)的变化相当。两种实验之间的微血管反应不同,MFR 显示出更大的曲线下面积(AUC,1503±499.1%∙s 与 1203±411.1%∙s;p=0.021)和达到最大 StO 的时间(40.0±8.4s 与 35.8±7.3s;p=0.009)。
如 HR 所示,MFR 引起的副交感神经活动比 PLM 更大。MFR 后 AUC 和 StO 达到最大值的时间更长,表明有溢出效应可引起长时间的过度饱和。这些结果可能对那些研究可能与 MFR 相关的康复益处的人感兴趣。