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Study aim
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Determining the Effect of One Session of Aerobic Exercise and Anodal Stimulation of Dorsolateral Prefrontal Cortex under Hypoxic Condition on Food Craving and Some of its Related Pyschological Factors in Overweight and Obses Men
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Design
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Clinical trial, within-group, counterbalanced, control group, crossover, double-blind on 20 patients. Randomization.com website will be used for randomization.
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Settings and conduct
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This study will be conducted at Razi University of Kermanshah. Each subject will be exposed to 2 different conditions of electrical brain stimulation in a random order and then will perform a 30-minute endurance exercise session on an ergometer bike.
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Participants/Inclusion and exclusion criteria
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Inclusion criteria: Age range 18 to 50 years; resident of Kermanshah city center; body mass index (BMI) 25 to 34.9 kg/m2; having food cravings (scoring a total score of 108 or higher on the 15-item food craving questionnaire and the 12-item visual analog food craving questionnaire); obtaining a certificate of non-restriction from a physician to participate in an exercise program.
Exclusion criteria: history of seizures, epilepsy, or other types of neurological diseases; presence of implantable devices or pacemakers in the body; smoking, alcohol, and drug use; presence of musculoskeletal abnormalities or disorders; participation in weight loss programs in the past 6 months; participation in a regular exercise program in the past 6 months.
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Intervention groups
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In this study, subjects will be exposed to two brain stimulation conditions: 1) anodal stimulation (intervention group) and 2) sham stimulation or placebo effect (control group) in the DLPFC region. The stimulation duration will be 20 minutes and its intensity will be 2 mA.
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Main outcome variables
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Changes of food craving, impulsivity, risk-taking decision-making, food oreference, appetite, and cognitive flexibility