American Journal of Sports Science

Volume 2, Issue 4, July 2014

  • Effect of Different Practice Schedules on Learning and Performance in Handball Task

    Vahid Rouhollahi, Mansoorehossadat Rozan, Akhil Mehrotra

    Issue: Volume 2, Issue 4, July 2014
    Pages: 71-76
    Received: 22 May 2014
    Accepted: 13 June 2014
    Published: 30 June 2014
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    Abstract: The purpose of this study was to investigate different effects of various practice schedules in handball task. 30 participants have been divided into three equal practice groups randomly. Participants have performed a task under blocked, random and serial practice schedules and they were tested in acquisition phase conducted on five consecutive ses... Show More
  • An Assessment of the Hydration Status of Recreational Endurance Athletes During Mountain Marathon Events

    Elizabeth Mahon, Allan Hackett, Timothy Stott, Keith George, Ian Davies

    Issue: Volume 2, Issue 4, July 2014
    Pages: 77-86
    Received: 4 July 2014
    Accepted: 16 July 2014
    Published: 30 July 2014
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    Abstract: Changes in hydration status have been shown to have deleterious effects on physiological functioning, physical performance, mental decision making, and subjective sensation of effort. This exploratory study assessed the hydration status of athletes taking part in mountain marathon events and the implications on performance, cognition and well-being... Show More
  • Effects of a Single Low-Intensity Resistance Exercise Session on Lipid Peroxidation of Untrained Male Students

    Mohammad Hossein Sepehri, Masoud Nikbakht, Abdolhamid Habibi, Mustafa Moradi

    Issue: Volume 2, Issue 4, July 2014
    Pages: 87-91
    Received: 19 May 2014
    Accepted: 7 June 2014
    Published: 30 July 2014
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    Abstract: Introduction: The aim of the present study was to examine the effects of a single bout of resistance exercise with low intensity of oxidative stress on male students who did not do any regular sports whatsoever. Materials and Methods: For this purpose, 16 untrained subjects with a mean age of 24.40 ± 1.7 years, height 176 ± 6.83 cm, weight 69.89 ± ... Show More
  • Offensive Process Analysis in Handball: Identification of Game Actions that Differentiate Winning from Losing Teams

    Willian R. Ferrari, João Valente dos Santos, Vasco Parreiral Simões Vaz

    Issue: Volume 2, Issue 4, July 2014
    Pages: 92-96
    Received: 18 July 2014
    Accepted: 29 July 2014
    Published: 10 August 2014
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    Abstract: This present study aims to show the main offensive differences between handball teams that lead to a win or a loss. The samples were collected through quantitative analyses of the Champions League 2011-2012 handball games. This study relied on non-descriptive and non-parametric statistics. The Mann-Whitney U test was used as the statistical method.... Show More
  • The Effects of Dietary Nitrate (Beetroot Juice) Supplementation on Exercise Performance: A Review

    Andreas Zafeiridis

    Issue: Volume 2, Issue 4, July 2014
    Pages: 97-110
    Received: 15 July 2014
    Accepted: 30 July 2014
    Published: 10 August 2014
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    Abstract: Nitric oxide (NO) is a potent vasodilator that increases blood flow and induces various intracellular actions such as increased mitochondrial and contractile efficiency. NO bioavailability may be increased by direct consumption of dietary nitrate and its sequential reduction to nitrite, a regulator of NO-induced hypoxic signaling. Dietary nitrate c... Show More