Data/hora: 15/06/2024 00:32:51

Biblioteca(s): 	Embrapa Semiárido.	
Data corrente: 	03/03/2020	
Data da última atualização: 	13/10/2020	
Autoria: 	TOSCANO, L. de L. T.; SILVA, A. S.; FRANÇA, A. C. L. de; SOUSA, B. R. V. de; ALMEIDA FILHO, E. J. B. de; COSTA, M. da S.; BIASOTO, A. C. T.; SILVA, D. F. da; SENA, K. de F.; CERQUEIRA, G. S.; GONÇALVES, M. da C. R.	
Afiliação: 	Lydiane de Lima Tavares Toscano; Alexandre Sérgio Silva; Ana Carla Lima de França; Bruno Rafael Virgínio de Sousa; Eder Jackson Bezerra de Almeida Filho; Matheus da Silveira Costa; ALINE TELLES BIASOTO MARQUES, CPATSA; Darcilene Fiuza da Silva; Klécia de Farias Sena; Gilberto Santos Cerqueira; Maria da Conceição Rodrigues Gonçalves.	
Título: 	A single dose of purple grape juice improves physical performance and antioxidant activity in runners: a randomized, crossover, double-blind, placebo study.	
Ano de publicação: 	2019	
Fonte/Imprenta: 	European Journal of Nutrition, v. 58, nov. 2019.	
ISSN: 	1436-6207	
DOI: 	0.1007/s00394-019-02139-6	
Idioma: 	Português	
Conteúdo: 	PurposeTo investigate the effects of a single dose of juice on physical performance, oxidative stress, inflammation and muscle damage in runners.Methods Fourteen recreational male runners (39 ± 9 years, VO2peak = 55.9 ± 6.5 ml/kg/min) performed two running tests to exhaustion at 80% of VO2max after ingesting grape juice or a placebo drink (10 ml/kg/day) randomly. Blood samples were taken before and 2 h after supplementation and immediately after running to analyze total antioxidant capacity (TAC), malondialdehyde (MDA), alpha-1 acid glycoprotein (A1GPA), high-sensitivity C-reactive protein (hs-CRP), creatine kinase (CK) and lactate dehydrogenase (LDH).ResultsThe participants ran for an average of 59.2 ± 27.8 min until exhaustion in the placebo group and for 68.4 ± 29.7 min until exhaustion in the grape juice intake group, which was a significantly longer time (p = 0.008). This improvement in physical performance was accompanied by a 43.6% increase in TAC (p = 0.000) at the post-exercise timepoint compared to the level at baseline. MDA, A1GPA, hs-CRP, CK, and LDH did not exhibit changes. In contrast, no significant change in any variable was observed after consuming the placebo drink.ConclusionThe single-dose intake of purple grape juice demonstrated an ergogenic effect in recreational runners by increas-ing run time to exhaustion and increasing antioxidant activity.	
Palavras-Chave: 	Atividade antioxidante; Desempenho físico; Sumo de uva roxa.	
Thesagro: 	Dieta; Nutrição; Uva.	
Thesaurus Nal: 	Athletic performance; Oxidative stress; Polyphenols.	
Categoria do assunto: 	Q Alimentos e Nutrição Humana	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/211409/1/ASingleDoseOfPurpleGrapeJuice.pdf	
Registro original: 	Embrapa Semiárido (CPATSA)	
Exemplares: 	CPATSA - (59088-1) - UPC - AP - DD -  -  -  - DIS