Effect of tDCS targeting the M1 or left DLPFC on physical performance, psychophysiological responses, and cognitive function in repeated all-out cycling: a randomized controlled trial

被引:11
|
作者
Teymoori, Hafez [1 ]
Amiri, Ehsan [1 ]
Tahmasebi, Worya [1 ]
Hoseini, Rastegar [1 ]
Grospretre, Sidney [2 ]
da Silva Machado, Daniel Gomes [3 ]
机构
[1] Razi Univ, Fac Sport Sci, Dept Exercise Physiol, Exercise Metab & Performance Lab EMPL, Kermanshah, Iran
[2] Univ Bourgogne France Comte, EA4660 C3S Lab Culture Sports Hlth & Soc, Besancon, France
[3] Univ Fed Rio Grande do Norte, Dept Phys Educ, Res Grp Neurosci Human Movement NeuroMove, Natal, RN, Brazil
关键词
Non-invasive brain stimulation; Electromyography; Anaerobic performance; Perceived exertion; Affective States; Circumplex Model of Affect; DIRECT-CURRENT STIMULATION; ENDURANCE EXERCISE; BRAIN-STIMULATION; INHIBITORY CONTROL; MUSCLE AFFERENTS; CIRCUMPLEX MODEL; FATIGUE; CORTEX; ACTIVATION; CHILDHOOD;
D O I
10.1186/s12984-023-01221-9
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
BackgroundDespite reporting the positive effects of transcranial direct current stimulation (tDCS) on endurance performance, very few studies have investigated its efficacy in anaerobic short all-out activities. Moreover, there is still no consensus on which brain areas could provide the most favorable effects on different performance modalities. Accordingly, this study aimed to investigate the effects of anodal tDCS (a-tDCS) targeting the primary motor cortex (M1) or left dorsolateral prefrontal cortex (DLPFC) on physical performance, psychophysiological responses, and cognitive function in repeated all-out cycling.MethodsIn this randomized, crossover, and double-blind study, 15 healthy physically active men underwent a-tDCS targeting M1 or the left DLPFC or sham tDCS in separate days before performing three bouts of all-out 30s cycling anaerobic test. a-tDCS was applied using 2 mA for 20 min. Peak power, mean power, fatigue index, and EMG of the quadriceps muscles were measured during each bout. Heart rate, perceived exertion, affective valence, and arousal were recorded two minutes after each bout. Color-word Stroop test and choice reaction time were measured at baseline and after the whole anaerobic test.ResultsNeither tDCS montage significantly changed peak power, mean power, fatigue index, heart rate, affective valence, arousal, and choice reaction time (p> 0.05). a-tDCS over DLPFC significantly lowered RPE of the first bout (compared to sham; p(=)0.048, & UDelta;(=)-12.5%) and third bout compared to the M1 (p(=)0.047, & UDelta;(=)-12.38%) and sham (p(=)0.003, & UDelta;(=)-10.5%), increased EMG of the Vastus Lateralis muscle during the second (p(=)0.016, & UDelta;(= +)40.3%) and third bout (p(=)0.016, & UDelta;(= +)42.1%) compared to sham, and improved the score of color-word Stroop test after the repeated all-out task (p(=)0.04, & UDelta;(= +)147%). The qualitative affective response (valence and arousal) was also higher under the M1 and DLPFC compared to the sham.ConclusionWe concluded that tDCS targeting M1 or DLPFC does not improve repeated anaerobic performance. However, the positive effect of DLPFC montage on RPE, EMG, qualitative affective responses, and cognitive function is promising and paves the path for future research using different tDCS montages to see any possible effects on anaerobic performance.
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页数:18
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