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首页> 外文期刊>Journal of Sports Medicine and Physical Fitness >Sex differences in delayed onset muscle soreness
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Sex differences in delayed onset muscle soreness

机译：迟发性肌肉酸痛的性别差异

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Aim. There is agreement that females report greater pain in response to typical experimental pain stimuli than males. However, investigations of sex differences in the sensation of delayed onset muscle soreness (DOMS) have equivocal results. The objective of this investigation was to examine sex differences in the pain from DOMS with an adequate sample size, quantification of stimulus intensity, and 2 measures of pain. Methods. Sixty-seven participants (52% females) completed a 2-session protocol. DOMS was induced using eccentric resistance exercises in the elbow flexors of the non-dominant arm. The intensity of the eccentric contractions was based upon concentric strength. Pain response was measured 48 hrs later. The dependent variables were pressure threshold, which was assessed using a dolorimeter, and pain intensity when the arm was moved through full active range of motion, which was assessed with a visual analog scale. Results. The occurrence of DOMS was confirmed by a decrease in pressure threshold after the eccentric contractions and higher pain intensity in the arm that performed the eccentric contractions than the arm that did not. Females reported lower pain intensities (M=3.41, SD=2.13) compared to males (M=5.12, SD=2.05), but no significant sex difference was found in pressure threshold. Conclusion. In this investigation, females reported lower muscle pain intensity than males, but showed no sex difference in pressure threshold. These and previous findings suggest that the detection of a sex difference in muscle pain depends upon the methodology of inducing DOMS and measuring sensation.
机译：目标。人们一致认为，女性对典型实验性疼痛刺激的反应比男性要更大。然而，对延迟发作性肌肉酸痛（DOMS）感觉方面的性别差异进行的研究尚不清楚。这项研究的目的是通过适当的样本量，定量刺激强度和2种疼痛测量方法来检查DOMS疼痛的性别差异。方法。 67名参与者（52％的女性）完成了为期2阶段的方案。通过在非优势臂的肘屈肌中使用偏心阻力练习来诱发DOMS。偏心收缩的强度基于同心强度。 48小时后测量疼痛反应。因变量是压力阈值（使用dolorimeter评估）和疼痛强度（当手臂经过完整的主动运动范围时），其视觉可视模拟量表进行评估。结果。通过偏心收缩后压力阈值的降低和进行偏心收缩的手臂的疼痛强度高于未进行偏心收缩的手臂，可以确认DOMS的发生。女性报告的疼痛强度低于男​​性（M = 5.12，SD = 2.05）（M = 3.41，SD = 2.13），但是在压力阈值上没有发现明显的性别差异。结论。在这项调查中，女性报告的肌肉疼痛强度低于男​​性，但压力阈值无性别差异。这些和以前的发现表明，检测肌肉疼痛中的性别差异取决于诱导DOMS和测量感觉的方法。

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