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Multi-session anodal transcranial direct current stimulation enhances lower extremity functional performance in healthy older adults.
Experimental Brain Research ( IF 1.7 ) Pub Date : 2020-06-18 , DOI: 10.1007/s00221-020-05827-6
Mohamad Rostami 1 , Zahra Mosallanezhad 1 , Sepideh Ansari 2 , Fatemeh Ehsani 3 , Dawson Kidgell 4 , Mohammad Reza Nourbakhsh 5 , Enayatollah Bakhshi 6 , Shapour Jaberzadeh 4
Affiliation  

The aim of this study was to examine the effects of 5 days of anodal-transcranial direct current stimulation (a-tDCS) over the primary motor cortex (M1) on lower extremity functional performance in healthy elderly people. This was a randomized, double-blinded, sham-controlled study whereby 32 healthy older individuals participated in two groups. The intervention group received 20 min of a-tDCS (1 mA) over the M1 on five consecutive days. The sham group received the same stimulation, but the tDCS device was turned off after 30 s of stimulation. Participants were asked to perform the Timed Up and Go (TUG), 30-s Chair Stand Test (30-s CST), and a Modified Figure of Eight Walk Test (MFEWT) on the first day before tDCS application, immediately, 30 min, and 1 week after the last session of stimulation. Results of the a-tDCS group showed that most of the test values had significant changes in post-test assessments compared to the pre-test (p < 0.05). When comparing the anodal and sham tDCS groups, the results showed a significant improvement in TUG and time-MFEWT immediately after (p = 0.02, p = 0.01), 30 min after (p = 0.04, p = 0.01) and 1 week after the last session of stimulation (p = 0.01, p = 0.01). Improvements in performance of the 30-s CST and the number of steps-MFEWT were not significant, except at 1 week after the last session for the steps-MFEWT (p = 0.04). The application of 20 min a-tDCS over the M1 for 5 consecutive days improves lower extremity functional performance in the healthy older participants.



中文翻译:

多阶段阳极经颅直流电刺激可增强健康老年人的下肢功能。

这项研究的目的是检查健康的老年人在原发性运动皮层(M1)上进行5天的阳极经颅直流电刺激(a-tDCS)对下肢功能表现的影响。这是一项随机,双盲,假对照的研究,其中32名健康的老年人参加了两组。干预组连续五天在M1上接受了20分钟的a-tDCS(1 mA)。假手术组接受了相同的刺激,但在刺激30 s后关闭了tDCS设备。要求参与者在tDCS申请开始前的第一天进行定时起跑(TUG),30 s椅子站立测试(CST 30 s)和8步修正测试图(MFEWT)。 ,以及最后一次刺激后的1周。p  <0.05)。比较阳极和假手术的tDCS组时,结果显示,紧接后(p  = 0.02,p  = 0.01),术后30分钟(p  = 0.04,p  = 0.01)和术后1周,TUG和time-MFEWT均有显着改善。最后一次刺激(p  = 0.01,p  = 0.01)。30 s CST的性能和步骤数-MFEWT的改善不显着,除了步骤-MFEWT的最后一次会话后第1周(p  = 0.04)。在M1上连续20天使用a-tDCS 20分钟可改善健康老年参与者的下肢功能表现。

更新日期:2020-06-18
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