Sorbie Graeme G, Grace Fergal M, Gu Yaodong, Baker Julien S, Ugbolue Ukadike C
1 University of the West of Scotland.
2 Abertay University.
J Appl Biomech. 2017 Aug;33(4):288-293. doi: 10.1123/jab.2016-0209. Epub 2017 Sep 5.
Lower back pain is commonly associated with golfers. The study aimed: to determine whether thoracic- and lumbar-erector-spinae muscle display signs of muscular fatigue after completing a golf practice session, and to examine the effect of the completed practice session on club head speed, ball speed and absolute carry distance performance variables. Fourteen right-handed male golfers participated in the laboratory-based-study. Surface electromyography (EMG) data was collected from the lead and trail sides of the thoracic- and lumbar-erector-spinae muscle. Normalized root mean squared (RMS) EMG activation levels and performance variables for the golf swings were compared before and after the session. Fatigue was assessed using median frequency (MDF) and RMS during the maximum voluntary contraction (MVC) performed before and after the session. No significant differences were observed in RMS thoracic- and lumbar-erector-spinae muscle activation levels during the five phases of the golf swing and performance variables before and after the session (p > .05). Significant changes were displayed in MDF and RMS when comparing the MVC performed before and after the session (p < .05). Fatigue was evident in the trail side of the erector-spinae muscle after the session.
下背部疼痛通常与高尔夫球手有关。该研究旨在：确定在完成一次高尔夫练习课程后，胸段和腰段竖脊肌是否表现出肌肉疲劳的迹象，并研究完成的练习课程对杆头速度、球速和绝对击球距离等性能变量的影响。14名右撇子男性高尔夫球手参与了这项基于实验室的研究。从胸段和腰段竖脊肌的主导侧和非主导侧收集表面肌电图（EMG）数据。比较了课程前后高尔夫挥杆的归一化均方根（RMS）肌电激活水平和性能变量。在课程前后进行的最大自主收缩（MVC）期间，使用中位频率（MDF）和RMS评估疲劳情况。在高尔夫挥杆的五个阶段中，课程前后胸段和腰段竖脊肌的RMS激活水平以及性能变量均未观察到显著差异（p > 0.05）。比较课程前后进行的MVC时，MDF和RMS出现了显著变化（p < 0.05）。课程结束后，竖脊肌非主导侧明显出现疲劳。
