Faculty of Physiotherapy, University School of Physical Education in Wroclaw, Wroclaw 51-612, Poland.
School of Psychology, Bangor University, Bangor LL57 2AS, UK.
Biomed Res Int. 2019 Jul 17;2019:9073073. doi: 10.1155/2019/9073073. eCollection 2019.
The study investigated touch and pain sensations and the correlation between them in diadynamic current (DD) and transcutaneous electrical nerve stimulation (TENS), electrotherapies commonly applied in musculoskeletal disorders and occupational rehabilitation medicine. Forty healthy subjects were treated with either DD (n=20) or TENS (n=20). Each treatment consisted of three sessions with one-week interval. Touch sensation was determined with the JVP Domes esthesiometer, pain sensation with pressure pain threshold (PPT), and pressure pain tolerance threshold (PPTO) by an algometer. During each session the measurements were performed before the application of the procedure (T0), immediately after it (T1), and 30 minutes after the end of the procedure (T2). Both DD and TENS increased touch sensation (p<0.01) and did not significantly alter PPT and PPTO (p>0.05). No statistically significant differences in short-term effects, i.e., 3 weeks of the trial, were noted between DD and TENS in their influence on touch and pain sensations (p>0.05). There was a high significant correlation between touch and pain sensations in DD (r=0.86). TENS and DD caused similar analgesic effects. DD, which is shorter in the duration of the treatment, may comprise a realistic alternative to TENS in clinical practice of pain management.
本研究调查了动电电流（DD）和经皮神经电刺激（TENS）中的触觉和疼痛感觉及其相关性，这两种电疗方法常用于肌肉骨骼疾病和职业康复医学。40 名健康受试者分别接受 DD（n=20）或 TENS（n=20）治疗。每次治疗包括三个疗程，间隔一周。使用 JVP 半球测痛仪测定触觉，用压力测痛仪测定痛觉的压痛阈（PPT）和耐痛阈（PPTO）。每次治疗中，在治疗前（T0）、治疗后即刻（T1）和治疗结束后 30 分钟（T2）进行测量。DD 和 TENS 均可增加触觉（p<0.01），但对 PPT 和 PPTO 无显著影响（p>0.05）。在为期 3 周的试验中，DD 和 TENS 对触觉和疼痛感觉的短期影响（p>0.05）无统计学差异。DD 中触觉和疼痛感觉之间存在高度显著相关性（r=0.86）。TENS 和 DD 产生类似的镇痛效果。DD 的治疗时间较短，在疼痛管理的临床实践中可能是 TENS 的一种现实替代选择。
