The aim of this study was to examine the acute effect of dual-task aerobic exercise on cognitive load and myocardial oxygen consumption in healthy sedentary individuals. In this study: 1. Does dual-task exercise applied in addition to aerobic training have an acute effect on cognitive load in healthy sedentary individuals? 2. Does dual-task exercise applied in addition to aerobic training in healthy sedentary individuals have an acute effect on myocardial oxygen consumption, which reflects the indirect oxygen consumption of the heart? The questions were answered.

To find answers to the questions of the study, healthy sedentary participants were randomized into two groups by online randomization method. One of the groups was the group that received only double-leg aerobic exercise. The other group was the double-leg aerobic exercise group integrated with dual-task-oriented training. Before and after the interventions, the blood pressure and pulse rate of the participants were measured, their cognitive functions were evaluated with the MOCA Test, their reaction times were evaluated with the Nelson Reaction Test, and the acute effect of the trainings was examined.

Inclusion Criteria:

• Volunteering to participate in the study
• No comorbidities
• Absence of comorbid diseases of the orthopedic, neurological, cardiopulmonary system
• Participants who have not been involved in another clinical trial in the last 1 month

Exclusion Criteria:

• Participants who had hip, pelvis, knee, ankle surgery in the last year
• Sensory loss
• Participants with leg length inequality
• Participants with known balance disorders in the last three months due to vestibular disorders, pregnancy, concussion
• Presence of systemic disease (diabetes, blood pressure, etc.)
• Those using bronchodilator drugs
• Having a neurological disease
• Not being in good psychological condition