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CURRENT ISSUETHE JOURNAL OF SPORTS MEDICINE AND PHYSICAL FITNESS

A Journal on Applied Physiology, Biomechanics, Preventive Medicine,
Sports Medicine and Traumatology, Sports Psychology

Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111

Frequency: Monthly

ISSN 0022-4707

Online ISSN 1827-1928

 

The Journal of Sports Medicine and Physical Fitness 2014 February;54(1):63-9

BODY COMPOSITION, NUTRITION AND SUPPLEMENTATION 

    ORIGINAL ARTICLES

An antioxidant and multivitamin supplement reduced improvements in VO2max

Skaug A. 1, Sveen O. 1, Raastad T. 2

1 Faculty of Education, Østfold University College Halden, Norway;
2 Department of Physical Performance Norwegian School of Sport Sciences, Sognsveien, Oslo

The aim of this study was to investigate the effect of an antioxidant supplement on training induced changes in VO2max in well-trained subjects. In a double-blinded placebo controlled design, a total of 40 amateur soccer players and 14 multi sports athletes were block-randomised into a placebo group or an antioxidant supplemented group (SUP). The SUP group consumed two commercially available antioxidant/vitamin supplements for 6 weeks according to manufacturer instructions (LifePak® Essentials Super A) and the placebo group took a similar amount of placebo tablets. Before and after the supplementation period, the athletes were tested for skin carotenoid score and VO2max. During the supplementation period all subjects continued their normal training in the preparation phase of the season. Six week supplementation with the antioxidant vitamin/mineral supplement increased skin carotenoid score by 27±6% while no change was observed in the placebo group. VO2max increased by 5.6±2.0% in the placebo group while no change was observed in the SUP group. The relative increase in VO2max was significantly higher in the placebo group than in the SUP group. In conclusion, the antioxidant vitamin/mineral supplement used in this study seemed to reduce training efficiency indicated by the lack of increase in VO2max in the SUP group.

language: English


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