High Intensity Exercise Affects Diurnal Variation of Some Biological Markers in Trained Subjects

Abstract The study investigated if markers of muscle injury and antioxidant status were affected by a Wingate test performed at 2 different times of day. 15 young male footballers performed 2 tests (randomized) at 07:00-h and 17:00-h. Fasting blood samples were collected before and 3 min after each...

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Veröffentlicht in:	International journal of sports medicine 2012-11, Vol.33 (11), p.886-891
Hauptverfasser:	Hammouda, O., Chtourou, H., Chahed, H., Ferchichi, S., Chaouachi, A., Kallel, C., Miled, A., Chamari, K., Souissi, N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adolescent Antioxidants - metabolism Athletes Athletic Performance - physiology Bicycling - physiology Biological and medical sciences Biomarkers - metabolism Body Temperature Circadian Rhythm - physiology Exercise Test Fundamental and applied biological sciences. Psychology Humans Male Muscle Fatigue - physiology Muscle, Skeletal - injuries Muscle, Skeletal - physiology Soccer Time Factors Training & Testing Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
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Zusammenfassung:	Abstract The study investigated if markers of muscle injury and antioxidant status were affected by a Wingate test performed at 2 different times of day. 15 young male footballers performed 2 tests (randomized) at 07:00-h and 17:00-h. Fasting blood samples were collected before and 3 min after each test for assessment of markers of muscle injury and antioxidant status. Resting oral temperature was recorded during each session. Peak power (10.76±1.05 vs. 11.15±0.83 W.kg − 1 ) and fatigue index (0.41±0.04 vs. 0.49±0.13%) during the Wingate test, and core temperature, were significantly higher (all p
ISSN:	0172-4622 1439-3964
DOI:	10.1055/s-0032-1301887