Effects of Transcranial Direct Current Stimulation on Psychophysiological Responses to Maximal Incremental Exercise Test in Recreational Endurance Runners
| Autor: | Cosme Franklim Buzzachera, Leandro Ricardo Altimari, Laura Guidetti, Marcelo Vitor-Costa, Andrea G. Bernardes, Carlo Baldari, Juliano M. Gabardo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
medicine.medical_specialty
medicine.medical_treatment lcsh:BF1-990 Hemodynamics Placebo endurance performance tDCS Incremental exercise 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation affective valence medicine running Psychology Treadmill General Psychology Original Research Transcranial direct-current stimulation 030229 sport sciences Oxygenation lcsh:Psychology Brain stimulation Breathing 030217 neurology & neurosurgery perception of effort |
| Zdroj: | Frontiers in Psychology Frontiers in Psychology, Vol 9 (2018) |
| ISSN: | 1664-1078 |
| Popis: | Previous studies have suggested that transcranial direct current stimulation (tDCS) might improve exercise performance and alter psychophysiological responses to exercise. However, it is presently unknown whether this simple technique has similar (or greater) effects on running performance. The purpose of this study was, therefore, to test the hypothesis that, compared with sham and cathodal tDCS, anodal tDCS applied over the M1 region would attenuate perception of effort, improve affective valence, and enhance exercise tolerance, regardless of changes in physiological responses, during maximal incremental exercise. In a double-blind, randomized, counterbalanced design, 13 healthy recreational endurance runners, aged 20–42 years, volunteered to participate in this study. On three separate occasions, the subjects performed an incremental ramp exercise test from rest to volitional exhaustion on a motor-driven treadmill following 20-min of brain stimulation with either placebo tDCS (sham) or real tDCS (cathodal and anodal). Breath-by-breath pulmonary gas exchange and ventilation and indices of muscle hemodynamics and oxygenation were collected continuously during the ramp exercise test. Ratings of perceived exertion (RPE) and affective valence in response to the ramp exercise test were also measured. Compared with sham, neither anodal tDCS nor cathodal tDCS altered the physiological responses to exercise (P > 0.05). Similarly, RPE and affective responses during the incremental ramp exercise test did not differ between the three experimental conditions at any time (P > 0.05). The exercise tolerance was also not significantly different following brain stimulation with either sham (533 ± 46 s) or real tDCS (anodal tDCS: 530 ± 44 s, and cathodal tDCS: 537 ± 40 s; P > 0.05). These results demonstrate that acute tDCS applied over the M1 region did not alter physiological responses, perceived exertion, affective valence, or exercise performance in recreational endurance runners. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|