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THE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS
Rivista di Medicina, Traumatologia e Psicologia dello Sport
Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
The Journal of Sports Medicine and Physical Fitness 2016 May 03
Effect of body composition, aerobic performance and physical activity on exercise-induced oxidative stress in healthy subjects
Magdalena WIECEK 1, Marcin MACIEJCZYK 1, Jadwiga SZYMURA 2, Szczepan WIECHA 3, Malgorzata KANTOROWICZ 4, Zbigniew SZYGULA 5
1 Department of Physiology and Biochemistry, Faculty of Physical Education and Sport, University of Physical Education in Krakow, Poland; 2 Department of Clinical Rehabilitation, Faculty of Motor Rehabilitation, University of Physical Education in Krakow, Poland; 3 Faculty of Tourism and Health, Jozef Pilsudski University of Physical Education in Warsaw, Branch in Biala Podlaska, Poland; 4 PhD Student, Faculty of Physical Education and Sport, University of Physical Education in Krakow, Poland; 5 Department of Sports Medicine and Human Nutrition, Faculty of Physical Education and Sport in University of Physical Education, Krakow, Poland
BACKGROUND: Oxidative stress could be result of an increase in ATP resynthesis during exercise. The aim of the study was to compare prooxidant-antioxidant balance (PAB) disturbances induced by exercise at maximal intensity in young men with differing body compositions.
METHODS: Thirty-nine subjects were selected from 1,549 volunteers aged 18-30, based on lean body mass (LBM) and percentage of body fat (%BF), and then assigned into groups: CON, average LBM (59.0-64.3 kg), average %BF (14.0-18.5%); HBF, high %BF> 21.5%, average LBM; HLBM, high LBM> 66.3 kg, average %BF. Participants’ physical activity was determined. A running test with a gradually increased load was used. Before and 3 minutes after exercise, total oxidative status (TOS) and total antioxidant capacity (TAC) were determined in the plasma, and the oxidative stress index (OSI =TOS/TAC) was calculated.
RESULTS: Maximal oxygen uptake (VO2max) was comparable in the HBF and HLBM groups (53.12±1.51 mlkg-1 and 50.25±1.27 mlkg-1, respectively) and significantly lower compared to the CON group (58.23±1.62 mlkg-1). The CON, HBF and HLBM groups showed similar significant (P<0.05) increases in TOS levels (36%, 35% and 31%, respectively). Post- exercise TAC increased by 8% in the HBF and HLBM groups (P<0.05), compared to the 3% increase in the CON group (P>0.05). There was significant negative correlation between OSI, measured before and after exercise, and participants’ physical activity. There was no correlation between OSI and VO2max, BM, LBM, %BF and BMI.
CONCLUSIONS: Exercise at maximal intensity causes a similar increase in TOS and in TAC in subjects with increased %BF and elevated content of LBM and regardless of body composition, the ratios of TOS/TAC concentrations before and after maximal-intensity exercise, have lower values in people with higher physical activity levels and are not dependent on aerobic performance (VO2max).