Modification of forearm vascular function following short-term handgrip exercise training

M. A. Alomari, M. A. Welsch, R. D. Prisby, C. M. Lee, R. H. Wood

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

This study examined the effect of low (25% of maximum voluntary contraction) and high (75% of maximum voluntary contraction) intensity short-term handgrip exercise training on localized vascular function. Forearm blood flow was evaluated in twenty-eight healthy men (age: 23 ± 4.3) pre- and post-training in both forearms at rest, following forearm occlusion and following forearm occlusion combined with handgrip exercise using strain gauge plethysmography. The 4-week program consisted of non-dominant handgrip exercise performed 5 d/wk for 20 min at either low or high intensity. Following training a significant increase in forearm blood flow was noted for the non-dominant arm in both groups after forearm occlusion (low intensity group: 16.51%; high intensity group: 20.72%; p = 0.001) and forearm occlusion combined with handgrip exercise (low intensity group: 17.71%; high intensity group: 29.27%; p = 0.001). No significant group by test interaction (p = 0.632) was found. These data show improved unilateral vasodilatory responsiveness after short-term handgrip training. In addition, the degree of change is most notable following the greatest vasodilatory stimulus. Lastly, a lack of group by treatment interaction suggests the change may be independent of training stimulus.

Original languageEnglish
Pages (from-to)361-365
Number of pages5
JournalInternational Journal of Sports Medicine
Volume22
Issue number5
DOIs
StatePublished - 2001

Keywords

  • Exercise training
  • Forearm blood flow
  • Plethysmography
  • Reactive hyperemia
  • Vascular function

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