ヤマガタ タカシ
  山形 高司
   所属   川崎医療福祉大学  医療技術学部 健康体育学科
   職種   助教
論文種別 原著
言語種別 英語
査読の有無 査読あり
表題 High cardiovascular reactivity and muscle strength attenuate hypotensive effects of isometric handgrip training in young women: A randomized controlled trial.
掲載誌名 正式名:Clinical and experimental hypertension (New York, N.Y. : 1993)
略  称:Clin Exp Hypertens
ISSNコード:15256006/10641963
掲載区分国外
巻・号・頁 42(7),595-600頁
著者・共著者 Yamagata T., Sako T.
発行年月 2020/10
概要 OBJECTIVE:Isometric resistance training may reduce resting blood pressure (BP); however, the magnitude of this effect varies among individual subjects and few studies attempted to predict it. This study aimed to investigate the potential hypotensive effects of isometric training and their association with cardiovascular reactivity to acute isometric exercise and muscle strength in young women.METHODS:In this randomized trial, twenty young women were randomly assigned to either the training (n = 10) or control (n = 10) group. Women from the training group performed unilateral isometric handgrip sessions for 8 weeks (4 × 2 min at 25% of maximal voluntary contraction [MVC]; 3 days/week). Cardiovascular reactivity to acute isometric exercise and MVC were measured at baseline. Resting BP was assessed during and after the intervention.RESULTS:Resting systolic BP significantly lowered only in the training group. The change in resting systolic BP following an 8-week intervention was significantly associated with the systolic BP and diastolic BP reactivity to the acute exercise at baseline during set 3 and 4 (P <.05). The handgrip MVC was associated with changes in systolic BP (r = 0.79, P =.007), diastolic BP (r = 0.68, P =.032), and mean arterial pressure (r = 0.79, P =.006). These results indicated that high cardiovascular reactivity and strength attenuate the hypotensive effects following isometric training in young women.CONCLUSIONS:The hypotensive effects following isometric training may be identified by BP reactivity to acute isometric exercise or handgrip strength in young women.
DOI 10.1080/10641963.2020.1747482
PMID 32249609