נק' מוניטין:
58,705
Controversies of antioxidant vitamins supplementation in exercise: ergogenic or ergolytic effects in humans?
Cainara Lins Draeger, Andréia Naves, Natália Marques, Ana Beatriz Baptistella, Renata Alves Carnauba, Valéria Paschoal and Humberto Nicastro
Journal of the International Society of Sports Nutrition 2014, 11:4 doi:10.1186/1550-2783-11-4
Published: 19 February 2014
Abstract (provisional)
The aim of this commentary was to discuss the last studies regarding the effect of antioxidant vitamins supplementation on oxidative stress in exercise in humans. The inclusion criteria encompassed published studies done in adult males and females between 2006 and 2013. The keywords used in the search engine were: endurance athlete, diet, oxidative stress, physical activity, diet, nutrition, antioxidant, antioxidant status, vitamin C, vitamin A, vitamin E, beta-carotene and combinations. Twelve studies were identified and organized according to the methodology and results of supplementation: ergogenic, ergolytic, partial or no difference between groups. The results of these studies showed no effect on physiological parameters and activity of antioxidant enzymes (n = 07), better response of the placebo treatment (ergolytic effect; n = 02), partial results (n = 01) and ergogenic results of antioxidant supplementation (n = 02). It is concluded that supplementation with antioxidant vitamins has controversial effects to oxidative damage induced by endurance exercise. The discordances among the studies
are presented and discussed.
http://www.jissn.com/content/pdf/1550-2783-11-4.pdf
Cainara Lins Draeger, Andréia Naves, Natália Marques, Ana Beatriz Baptistella, Renata Alves Carnauba, Valéria Paschoal and Humberto Nicastro
Journal of the International Society of Sports Nutrition 2014, 11:4 doi:10.1186/1550-2783-11-4
Published: 19 February 2014
Abstract (provisional)
The aim of this commentary was to discuss the last studies regarding the effect of antioxidant vitamins supplementation on oxidative stress in exercise in humans. The inclusion criteria encompassed published studies done in adult males and females between 2006 and 2013. The keywords used in the search engine were: endurance athlete, diet, oxidative stress, physical activity, diet, nutrition, antioxidant, antioxidant status, vitamin C, vitamin A, vitamin E, beta-carotene and combinations. Twelve studies were identified and organized according to the methodology and results of supplementation: ergogenic, ergolytic, partial or no difference between groups. The results of these studies showed no effect on physiological parameters and activity of antioxidant enzymes (n = 07), better response of the placebo treatment (ergolytic effect; n = 02), partial results (n = 01) and ergogenic results of antioxidant supplementation (n = 02). It is concluded that supplementation with antioxidant vitamins has controversial effects to oxidative damage induced by endurance exercise. The discordances among the studies
are presented and discussed.
http://www.jissn.com/content/pdf/1550-2783-11-4.pdf
