J Orthop Sports Phys Ther. 1992;16(6):269-74. doi: 10.2519/jospt.1992.16.6.269.
Slump stretching (a neural stretching technique) has been shown to be therapeutic in the management of grade one hamstring strains. To elucidate its physiological basis, this study was designed to examine the effect of slump stretch on sympathetic outflow to the lower limbs using telethermography. This study was conducted on 10 normal, elite track and field athletes. Temperature readings were taken using telethermographic imaging at four locations before and after stretching, on both stretched and unstretched lower limbs. Results indicated that a significant cutaneous vasodilator effect occurred in the stretched limb as evidenced by increased skin temperature, while the unstretched control limb showed a slight decrement in temperatures (p < 0.001). The findings indicate that slump stretch has a sympathetic inhibitory effect. This effect could be the underlying physiological mechanism for the therapeutic effect of slump stretch in grade one hamstring strains. This study demonstrates that physical maneuvers can produce neurogenic effects, which may account for their therapeutic value. J Orthop Sports Phys Ther 1992;16(6):269-274.
下蹲拉伸（一种神经拉伸技术）已被证明对一级腿筋拉伤的治疗有效果。为了阐明其生理基础，本研究旨在使用远距热成像检查下蹲拉伸对下肢交感神经输出的影响。本研究对 10 名正常的、优秀的田径运动员进行了研究。在拉伸前后，分别在拉伸和未拉伸的下肢的四个部位使用远距热成像技术进行温度读数。结果表明，拉伸的肢体出现了明显的皮肤血管扩张效应，表现为皮肤温度升高，而未拉伸的对照肢体的温度略有下降（p<0.001）。这些发现表明，下蹲拉伸具有交感神经抑制作用。这种效应可能是下蹲拉伸治疗一级腿筋拉伤的治疗效果的潜在生理机制。本研究表明，物理手法可以产生神经源性效应，这可能是它们具有治疗价值的原因。《矫形与运动物理治疗杂志》1992 年；16（6）：269-274.
