在线和离线高精度经颅直流电刺激对健康成年人手指运动技能学习效果的随机对照试验  

Effect of online and offline high definition transcranial direct current stimulation on finger motor skill learning in healthy adults:a randomized controlled trial

作　　者：牛茂林 赵潭 刘晓丽[2] 郭峰[1] NIU Maolin;ZHAO Tan;LIU Xiaoli;GUO Feng(College of Exercise and Health,Shenyang Sport University,Shenyang,Liaoning 110102,China;Affiliated Competitive Sports School,Shenyang Sport University,Shenyang,Liaoning 110102,China)

机构地区：[1]沈阳体育学院运动健康学院,辽宁沈阳市110102 [2]沈阳体育学院附属竞技体育学校,辽宁沈阳市110102

出　　处：《中国康复理论与实践》2024年第8期957-964,共8页Chinese Journal of Rehabilitation Theory and Practice

基　　金：辽宁省教育厅基本科研项目重点项目(No.JYTZD2023133);辽宁省自然科学基金面上项目(No.2022-MS-415)。

摘　　要：目的观察高精度经颅直流电刺激(HD-tDCS)不同刺激时机(在线刺激、离线刺激)对健康成年人手指运动技能学习效果的影响。方法2022年3月至11月,在沈阳体育学院招募右利手男性受试者31例,随机分为3组。分别在HD-tDCS在线刺激、离线刺激以及假刺激下,完成顺序视觉等距捏力任务学习,共3 d。观察每天运动技能学习量、运动技能学习总量和速度-精度函数(SAF)。结果各组运动技能学习量均增加,在线刺激组增加最多(F=24.692,P<0.001),且第3天时,显著高于离线刺激组(t=4.732,P<0.001)和假刺激组(t=3.839,P=0.004)。运动技能学习总量:在线刺激组=离线刺激组>假刺激组。在线刺激组SAF高于离线刺激组和假刺激组。结论HD-tDCS刺激可提高健康受试者手指运动技能学习效果,在线刺激效果最佳。Objective To investigate the effect of high definition transcranial direct current stimulation(HD-tDCS)at different stimulation timings(online and offline)on finger motor skill learning in healthy adults.Methods From March to November,2022,31 right-handed male participants were recruited from Shenyang Sport University and randomly assigned to three groups,who received online,offline or sham HD-tDCS respectively during the three-day sequential visual isometric pinch task learning process.The daily motor skill learning gains,total motor skill learning gains and speed-accuracy function(SAF)were observed.Results The daily motor skill learning gains increased in all the groups,and it was the best in the online group(F=24.692,P<0.001);the learning gains were better in the online group than in the offline group(t=4.732,P<0.001)and the sham group(t=3.839,P=0.004)on the third day.The total motor skill learning gains were ranked as the online group=the offline group>the sham group.SAF data indicated that the online group outperformed both the offline and sham groups.Conclusion HD-tDCS can promote the finger motor skill learning in healthy adults,and online HD-tDCS is more effective.

关 键 词：重复高精度经颅直流电刺激 在线刺激 离线刺激 运动技能学习 随机对照试验 

分 类 号：R804.23[医药卫生—临床医学]