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Acute Effects of Moderate-Intensity Continuous Exercise Versus HIIT on Cognitive Performance and Psychophysiological Responses in Physically Active Adults
Sponsor: Qassim University
Summary
This study aims to compare the immediate effects of two common types of exercise-moderate-intensity continuous exercise and high-intensity interval training (HIIT)-on attention, alertness, and physiological responses in physically active young adults. Attention and mental alertness are essential for learning, academic performance, and daily functioning. Previous research suggests that a single session of exercise can temporarily improve cognitive performance, but it is not clear whether moderate exercise or high-intensity interval exercise is more effective in producing these immediate benefits. In this study, participants will complete two supervised treadmill exercise sessions on separate days: one session of moderate-intensity continuous exercise and one session of high-intensity interval training. The order of the two exercise sessions will be randomized, and there will be a rest period of 48 to 72 hours between sessions. Before and immediately after each exercise session, participants will complete computerized cognitive tests that measure sustained attention and reaction time. Heart rate, oxygen saturation, perceived exertion, mood, and alertness will also be measured to evaluate physiological and psychological responses to exercise. By comparing the effects of these two exercise approaches within the same individuals, this study aims to identify which type of exercise leads to better immediate cognitive performance and favorable physiological responses. The findings may help guide exercise recommendations for improving attention, alertness, and overall mental performance in young adults.
Official title: Acute Effects of Moderate-Intensity Continuous Exercise Versus High-Intensity Interval Training on Cognitive Performance and Psychophysiological Responses in Physically Active Adults: A Randomized Crossover Study
Key Details
Gender
All
Age Range
18 Years - 30 Years
Study Type
INTERVENTIONAL
Enrollment
38
Start Date
2025-10-01
Completion Date
2026-04-05
Last Updated
2026-02-10
Healthy Volunteers
Yes
Interventions
Moderate-Intensity Continuous Exercise (MICE)
Participants perform continuous treadmill exercise for 20 minutes at 60-70% of age-predicted maximum heart rate. Each session includes a standardized warm-up period of approximately 3 minutes and a cool-down period of 2-3 minutes. Heart rate, oxygen saturation, and rating of perceived exertion are monitored throughout the session to ensure adherence to the target intensity and participant safety.
High-Intensity Interval Training (HIIT)
Participants perform treadmill-based high-intensity interval training consisting of repeated short bouts of exercise at 85-95% of age-predicted maximum heart rate, interspersed with brief recovery periods. Total session duration is approximately 20 minutes, including standardized warm-up and cool-down periods. Heart rate, oxygen saturation, and rating of perceived exertion are continuously monitored to ensure safety and protocol compliance.
Locations (1)
Qassim University
Buraidah, Al-Qassim Region, Saudi Arabia