Investigating the effects of Transcranial Pulsed Current Stimulation on Athletic and Cognitive Performance in male trained cyclists

Investigating the effects of Transcranial Pulsed Current Stimulation on Athletic and Cognitive Performance in male trained cyclists

A clinical trial with a control group, with a within-group design, counterbalanced, double-blind, randomized, on 15 subjects. Latin square was used for randomization.

This study is conducted at Razi University. After recruiting subjects and their familiarization, each subject is exposed to 3 different conditions of brain electrical stimulation in random order and then, they will perform an endurance activity.

Inclusion Criteria: Gender Male, regular endurance cycling training in 6 months before the beginning of the research, The age range is 18 to 44 years, Getting the certification of no prohibition of participating in the exercise training program from a specialist. Exclusion Criteria: history of sports injury in the past month, Suffering from any cardiovascular, pulmonary and metabolic diseases History of seizures, epilepsy, or other neurological diseases Existence of implantable, devices or pacemakers in the body, Tobacco and alcohol consumption, Having color blindness

In this within-subject and counterbalanced study, participants will be exposed to 3 different conditions of brain stimulation including 1) Anodal stimulation of the primary motor cortex, 2) Anodal stimulation of the dorsolateral prefrontal cortex, 3) Sham stimulation (placebo effect) for 20 minutes and 1/5 milliamperes intensity.

Changes in endurance performance,perceived exertion, electromyography, cognitive function including Stroop Color-Word Test and countdown test, reaction time, pain scale, pleasure and arousal scale

In this study, the order of subject exposure to 3 different conditions (3 different types of electrical stimulation of the brain) will be randomized by Latin square method. For this purpose, first, using the www.random.org website, a number between 1 and 15 will be randomly assigned to each of the subjects as an identification code. Then, the English letters B, A and C will be assigned to the three intervention conditions and a Latin square will be created. In this case, a Latin square with three rows and three columns is created. Finally, participants number 1 to 5 are placed in the sequence of the first row, participants number 6 to 10 are placed in the sequence of the second row, and participants number 11 to 15 are placed in the sequence of the third row.

In this double-blind study, the researcher and participants will be blinded to the type of transcranial electrical stimulation used and the location of stimulation in each session. In the present study, the Neurostim stimulation device was used to induce direct current electrical stimulation in three separate sessions and three different modes including: 1) Anodal stimulation of the primary motor cortex (M1), 2) Anodal stimulation of the dorsolateral prefrontal cortex (DLPFC) 3) sham stimulation (placebo) will be used. For this purpose, a person outside the research team will be responsible for applying electrical stimulation in three experimental sessions. In order to blind the participants, after they sit on a special chair, the electrical stimulation device of the brain is hidden from their sight and covered by a cover completely, and the electrodes will be placed on the desired areas by the examiner. In order to blind the researcher, before the intervention, the researcher leaves the laboratory and returns to the test site after the stimulation period has passed and the electrodes are removed and the stimulation device is turned off. Also, in the sham stimulation mode, according to standard protocols, the active current is induced on the head for 30 seconds to induce the same sensation as the active stimulation mode, and then the current is cut off and the stimulation is deactivated.

All data can be shared after de-identifying subjects.

6 months after printing the results

researchers

For meta-analysis research

If you need to receive documents, send an email to hanie nozari, research researcher, with the email address: hana.nozari1997@gmail.com.

In case of an official request, stating the relevant reasons and mentioning the complete details, the data will be sent via email after 72 hours.