Gurevich M, Kohn P M, Davis C
Graduate Programme in Psychology, York University, Ontario, Canada.
J Sports Sci. 1994 Dec;12(6):549-59. doi: 10.1080/02640419408732205.
The present study was designed to evaluate whether pain perception and pain tolerance are altered by submaximal aerobic exercise. Sixty male volunteers were randomly assigned to one of two control or experimental groups in the first of two sessions. In session 1, baseline measures of pain tolerance and pain perception were obtained for half of the subjects in each of the experimental and control groups, respectively. In addition, all subjects completed the Reactivity Scale, followed by estimation of their maximum aerobic power (VO2 max) using the Canadian Home Fitness Test. In session 2, the subjects in the two experimental groups exercised for 12 min by climbing a double step to pre-recorded musical cadences, working on average at 63% VO2 max, whereas the subjects in the two control groups spent approximately 12 min completing two short unrelated questionnaires. Measures of pain tolerance and pain perception were obtained from all subjects after exercising or completing questionnaires. Pain tolerance was assessed by the amount of time (up to 10 min) that subjects could voluntarily endure a 2300 g pressure to the index finger of their dominant hand. Pain perception was defined by participants' intensity ratings on an 11-point scale, made at 30 and 60 s. The results showed that reactivity and exercise were significant predictors of pain tolerance, together accounting for approximately 22% of the variance. The finding that submaximal workloads produce analgesia supports the potential usefulness of exercise in therapeutic intervention.
本研究旨在评估次最大有氧运动是否会改变疼痛感知和疼痛耐受。在两轮实验的第一轮中，60名男性志愿者被随机分配到两个对照组或实验组之一。在实验1中，分别对每个实验组和对照组中的一半受试者进行疼痛耐受和疼痛感知的基线测量。此外，所有受试者完成反应量表，然后使用加拿大家庭健身测试估算他们的最大有氧功率（最大摄氧量）。在实验2中，两个实验组的受试者通过攀爬双台阶跟随预先录制的音乐节奏进行12分钟的运动，平均运动强度为最大摄氧量的63%，而两个对照组的受试者则花费大约12分钟完成两份简短的无关问卷。在运动或完成问卷后，对所有受试者进行疼痛耐受和疼痛感知的测量。通过受试者自愿忍受施加在其优势手食指上2300克压力的时间（最长10分钟）来评估疼痛耐受。疼痛感知由参与者在30秒和60秒时在11点量表上的强度评分来定义。结果表明，反应性和运动是疼痛耐受的重要预测因素，共同解释了约22%的方差。次最大工作量产生镇痛作用这一发现支持了运动在治疗干预中的潜在效用。
