title: The effect of acute blood-flow-restricted resistance exercise on postexercise blood pressure.
abstract: BACKGROUND
  Blood-flow-restricted (BFR) exercise is an emerging type of exercise that may be particularly beneficial to elderly or special populations. These populations may also benefit from reductions in blood pressure (BP). The effect of BFR exercise on postexercise BP has not been examined; this should first be examined in a young, healthy population as a preliminary investigation.
  
  
  OBJECTIVE
  The main purpose of this study was to determine whether postexercise hypotension (PEH) occurred following low-intensity [20% 1 repetition maximum (1-RM)] BFR resistance exercise. A secondary purpose was to compare this response to both a work-matched low-intensity (20% 1-RM) (LI) and a traditional high-intensity (70% 1-RM) resistance exercise bout (HI).
  
  
  METHODS
  In a randomized cross-over design, ten normotensive, young (18-35 years) men performed one of the three lower-body resistance exercise bouts (HI, LI or low-intensity BFR) during separate visits to the laboratory. Brachial BP, cardiac ultrasound and calf blood flow measurements were taken prior to and 30 and 60 min following exercise. Repeated measures analysis of variance (3 × 3; condition × time) was performed on all variables.
  
  
  RESULTS
  A significant interaction (P<0·05) was found for brachial systolic blood pressure which decreased following HI only. Significant interactions (P<0·05) were also seen for heart rate, total peripheral resistance and calf vascular resistance.
  
  
  CONCLUSIONS
  Postexercise hypotension occurred only following HI. Thus, if one is exercising with the intent of lowering BP, HI resistance exercise may be more useful than low-intensity BFR resistance exercise.
authors: Department of Health and Exercise Science, University of Oklahoma, Norman, USA. lindy.rossow@ou.edu
authors: Lindy M
authors: LM
authors: Rossow
authors: Christopher A
authors: CA
authors: Fahs
authors: Vanessa D
authors: VD
authors: Sherk
authors: Dong-Il
authors: DI
authors: Seo
authors: Debra A
authors: DA
authors: Bemben
authors: Michael G
authors: MG
authors: Bemben
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001794:Blood Pressure; D001916:Brachial Artery / Q000503:physiopathology*; D002302:Cardiac Output; D003250:Constriction; D018592:Cross-Over Studies; D006339:Heart Rate; D006801:Humans; D007022:Hypotension / Q000209:etiology / Q000503:physiopathology*; D007866:Leg / Q000098:blood supply*; D008297:Male; D009825:Oklahoma; D012039:Regional Blood Flow; D055070:Resistance Training / Q000379:methods*; D013997:Time Factors; D014655:Vascular Resistance; D055815:Young Adult