Abstract

The Objective of study is to investigate the effect of long-term supplement mixed cherry-carrot juice sports drink on long-distance runner physical performance. 22 subjects were randomly divided into two groups for two-phase cross, double-blind placebo-controlled trials, each stage of the intervention was four weeks and 4-week-Wash-out phase was between two intervention phases. Before and after 4 week crossover phase, Oxygen uptake dynamics and physical performance test was performed, before and after which the sample of blood and urine was collected. After intervention the average Watt and RPM of C group was higher than P group in 20 km test, the t of oxygen uptake kinetics of C group was faster than P group. After intervention, no group change of antioxidant capacity was observed between C and P beside T-AOC, whose group difference from pre-intervention to post-intervention was significant. The significant group difference of 8-isoPGF2a from pre-intervention to post-intervention was observed in post-exercise status. After long-term mixed cherry-carrot juice sports drink intervention, physical performance and oxygen uptake kinetics parameters are improved in long-distance runner. Total antioxidant capacity of plasma is increased; the changes of Oxidative stress injury markers are reduced.

Keywords:

Cherry-carrot juice, long-distance runner, physical performance, sports drink,

References

1. Burnley, M. and A.M. Jones, 2007. Oxygen uptake kinetics as a determinant of sports performance. Eur. J. Sport Sci., 7(2): 63-79.
   CrossRef    Direct Link
2. Davis, J.M., E.A. Murphy and M.D. Carmichael, 2009. Effects of the dietary flavonoid quercetin upon performance and health. Curr. Sport. Med. Rep., 8(4): 206 -213.
   CrossRef    PMid:19584608    Direct Link
3. Halvorsen, B.L., M.H. Carlsen, K.M. Phillips, S.K. Bøhn, K. Holte et al., 2006. Content of redox-active compounds (ie, antioxidants) in foods consumed in the United States. Am. J. Clin. Nutr., 84: 95-135.
   CrossRef    PMid:16825686    Direct Link
4. Kang, S.Y., N.P. Seeram, M.G. Nair and L.D. Bourquin, 2003. Tart cherry anthocyanins inhibit tumor development in Apc(Min) mice and reduce proliferation of human colon cancer cells. Cancer Lett., 194: 13-19.
   CrossRef    Direct Link
5. MacRae, H.S. and K.M. Mefferd, 2006. Dietary antioxidant supplementation combined with quercetin improves cycling time trial performance. Int. J. Sport Nutr. Exe., 16(4): 405-419.
   Direct Link
6. Seymour, E.M. and A. Singer, 2007. Tart cherry- enriched diets reduce metabolic syndrome in rats. J. Nutr., 32(5): 89-91.
   
7. Sun, X. and L. Fang, 2014. Research on the production of mixed cherry-carrot juice sports drink. Food Res. Dev., 35(24): 92-95.
   
8. Sun, Y., Y. Chen, S. Wang and Y. Fang, 2011. Study on antioxidant activity of polysaccharides from carrot(Daucus carota var. sativa) in vitro. Chinese J. Trop. Crops, 32(3): 403-406.
   Direct Link
9. Wu, X., G.R. Beecher, J.M. Holden, D.B. Haytowitz, S.E. Gebhardt et al., 2004. Lipophilic and hydrophilic antioxidant capacities of common foods in the United States. J. Agr. Food Chem., 52: 4026-4037.
   CrossRef    PMid:15186133    Direct Link
10. Yan, G. and K. Zhang, 2008. Research of cherry health care function. Sci. Technol., 29(2): 313-316.
    

Competing interests

The authors have no competing interests.

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