Hormonal responses to a single session of wholebody vibration exercise in older individuals

M Cardinale, R L Soiza, J B Leiper, A Gibson, W R Primrose

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

OBJECTIVE: Whole-body vibration (WBV) has been recently suggested as an alternative form of exercise. In this study, the acute effects of a single session of WBV exercise on anabolic hormones in aged individuals were analysed.

DESIGN: A randomised cross-over trial design was used.

SETTINGS: Geriatrics Department, Woodend Hospital.

PARTICIPANTS: 20 individuals (9 men and 11 women; median age 70 years (range 66 to 85 years) volunteered in the experiment. Interventions Isometric squat on a platform with vibration or no vibration (control) conditions.

MAIN OUTCOME MEASUREMENTS: Plasma cortisol, testosterone, growth hormone (GH) and insulin-like growth factor 1 (IGF-1) were measured before, immediately after, and 1 and 2 h after the interventions.

REPORTS: A significant difference between treatments (p<0.001) and a time x treatment interaction (p<0.05) was found in IGF-1 levels. Cortisol levels were shown not to be significantly different between treatments (p = 0.43), but a difference over time (p<0.001) and a time6 treatment interaction (p<0.05) were identified. No significant differences were identified in GH and testosterone levels.

CONCLUSIONS: As shown by the results of the study, 5 min of WBV exercise characterised by static squat with a frequency of 30 Hz can be performed by older individuals without apparent signs of stress and/or fatigue. Furthermore, WBV produced an acute increase in the circulating levels IGF-1 and cortisol greater than that observed following the same exercise protocol conducted without vibration.

Original languageEnglish
Pages (from-to)284-8
Number of pages5
JournalBritish Journal of Sports Medicine
Volume44
Issue number4
DOIs
Publication statusPublished - Mar 2010

Keywords

  • Aged
  • Aged, 80 and over
  • Cross-Over Studies
  • Exercise
  • Female
  • Growth Hormone
  • Humans
  • Hydrocortisone
  • Insulin-Like Growth Factor I
  • Male
  • Testosterone
  • Vibration
  • Journal Article
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

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