A single session of treadmill running has no effect on plasma total ghrelin concentrations

BURNS, S. F., BROOM, D. R., MIYASHITA, M., MUNDY, C. and STENSEL, D. J. (2007). A single session of treadmill running has no effect on plasma total ghrelin concentrations. Journal of sports sciences, 25 (6), 635-642.

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Link to published version:: https://doi.org/10.1080/02640410600831856
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    <p>Ghrelin is a hormone that stimulates hunger. Intense exercise has been shown to temporarily suppress hunger after exercise. In the present study, we investigated whether post-exercise hunger suppression is mediated by reduced plasma total ghrelin concentrations. Nine men and nine women participated in the study. Their mean physical characteristics were as follows: age 24.8 (s<sub>x</sub> = 0.9) years, body mass index 22.9 (s<sub>x</sub> = 0.6) kg . m<sup>-2</sup>, maximal oxygen uptake (VO<sup>2max</sup>) 57.7 (s<sub>x</sub> = 2.2) ml . kg<sup>-1</sup> . min<sup>-1</sup>. The participants completed two 3-h trials (exercise and control) on separate days in a randomized balanced design after overnight fasts. The exercise trial involved a 1-h treadmill run at 73.5% of VO<sup>2max</sup> followed by 2 h of rest. The control trial consisted of 3 h of rest. Blood samples were collected at 0, 0.5, 1, 1.5, 2, and 3 h. Total ghrelin concentrations were determined from plasma. Hunger was assessed following blood sampling using a 15-point scale. The data were analysed using repeated-measures analysis of variance. Hunger scores were lower in the exercise trial than in the control trial (trial, P = 0.009; time, P < 0.001; trial x time, P < 0.001). Plasma total ghrelin concentrations did not differ between trials. These findings indicate that treadmill running suppresses hunger but this effect is not mediated by changes in plasma total ghrelin concentration.</p>

    Item Type: Article
    Research Institute, Centre or Group - Does NOT include content added after October 2018: Centre for Sport and Exercise Science
    Identification Number: https://doi.org/10.1080/02640410600831856
    Page Range: 635-642
    Depositing User: Ann Betterton
    Date Deposited: 23 Dec 2008
    Last Modified: 13 Jun 2017 12:44
    URI: http://shura.shu.ac.uk/id/eprint/606

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