NCT05919979

Effect of a Physical Exercise Session Performed During a 24-34 Hour Fasting Period on Energy Metabolism and Cognitive Function in Healthy Adults

Efecto de Una sesión de Ejercicio físico Realizada Durante un Periodo de Ayuno de 24-34 Horas Sobre el Metabolismo energético y la función Cognitiva en Adultos Sanos: Estudio Piloto

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 25 (actual)
• Sponsor: Universidad de Granada · Academic / Other
• Sex: All
• Age: 18 Years – 40 Years
• Healthy volunteers: Accepted

Summary

This study explores the impact of high-intensity exercise during fasting on energy metabolism and cognitive function in healthy adults. Changes in respiratory exchange ratio, blood substances, and cognitive performance will be measured after 24 and 34 hours of fasting with and without exercise in a randomized crossover design.

Conditions

• Energy Metabolism

Interventions

Type	Name	Description
BEHAVIORAL	34-hour fasting in sedentary conditions	Participants will fast for 34h after a standardized breakfast, refraining from physical activity.
BEHAVIORAL	34-hour fasting with high-intensity exercise	Participants will fast for 34h after a standardized breakfast, performing a high-intensity exercise session 6-10 hours aprox. after starting the fasting period.

Timeline

• Start date: 2023-05-29
• Primary completion: 2025-06-11
• Completion: 2025-06-18
• First posted: 2023-06-27
• Last updated: 2025-12-26

Locations

1 site across 1 country: Spain