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Examination of Certain Blood Parameters Following Performance and Acute Exercise at Specific Times of the Day
Sponsor: Firat University
Summary
This study aims to investigate whether the time of day at which acute exercise is performed influences physical performance and acute hormonal and biochemical responses in healthy young male soccer players. Participants will complete the same standardized exercise protocol in the morning (08:00-09:30) and evening (17:00-18:30), with a 96-hour interval between sessions. Performance will be assessed using vertical jump and Yo-Yo shuttle run tests. Blood samples will be collected before exercise, immediately after exercise, and two hours after exercise to assess testosterone, cortisol, creatine kinase, AST, ALT, LDH, and troponin levels. The study will examine whether exercise responses differ between morning and evening sessions and whether these differences are consistent with circadian variation.
Key Details
Gender
MALE
Age Range
18 Years - 25 Years
Study Type
INTERVENTIONAL
Enrollment
8
Start Date
2025-11-25
Completion Date
2026-01-15
Last Updated
2026-09-17
Healthy Volunteers
Yes
Interventions
Standardized Acute Exercise Protocol
Participants completed a standardized acute exercise protocol consisting of a vertical jump test and a Yo-Yo shuttle run endurance test. The protocol was performed twice, once in the morning (08:00-09:30) and once in the evening (17:00-18:30), with a 96-hour washout period between sessions. Blood samples were collected before exercise, immediately after exercise, and 2 hours after exercise to assess hormonal (testosterone and cortisol) and biochemical (CK, AST, ALT, LDH, and troponin) responses.
Locations (1)
MUNZUR University
Tunceli, Turkey (Türkiye)