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

Stephen F. Burns, David R. Broom, Masashi Miyashita, Claire Mundy, David J. Stensel

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

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 (sx = 0.9) years, body mass index 22.9 (sx = 0.6) kg · m-2, maximal oxygen uptake (VO2max) 57.7 (sx = 2.2) ml · kg-1 · min-1. 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 VO2max 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 × 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.

Original languageEnglish
Pages (from-to)635-642
Number of pages8
JournalJournal of Sports Sciences
Volume25
Issue number6
DOIs
Publication statusPublished - 2007 Apr
Externally publishedYes

Fingerprint

Ghrelin
Hunger
Running
Exercise
Analysis of Variance
Body Mass Index
Hormones
Oxygen

Keywords

  • Appetite
  • Exercise
  • Hunger
  • Weight control

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Physical Therapy, Sports Therapy and Rehabilitation
  • Orthopedics and Sports Medicine

Cite this

A single session of treadmill running has no effect on plasma total ghrelin concentrations. / Burns, Stephen F.; Broom, David R.; Miyashita, Masashi; Mundy, Claire; Stensel, David J.

In: Journal of Sports Sciences, Vol. 25, No. 6, 04.2007, p. 635-642.

Research output: Contribution to journalArticle

Burns, Stephen F. ; Broom, David R. ; Miyashita, Masashi ; Mundy, Claire ; Stensel, David J. / A single session of treadmill running has no effect on plasma total ghrelin concentrations. In: Journal of Sports Sciences. 2007 ; Vol. 25, No. 6. pp. 635-642.
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