title: Caffeine ingestion and intense resistance training minimize postexercise hypotension in normotensive and prehypertensive men.
abstract: The primary aim of the study was to compare changes in blood pressure (BP) in normotensive and prehypertensive men completing resistance exercise following caffeine ingestion. Normotensive (n = 7) and hypertensive men (n = 7) ingested caffeine (6 mg x kg(-1)) or placebo 1 h preexercise, then completed four sets of bench press, leg press, lat pull-down, and shoulder press at 70%-80% one repetition maximum (1-RM). Heart rate (HR) and BP were measured preexercise, during exercise, and for 75 min postexercise. Caffeine increased (p < 0.05) resting, exercise, and recovery systolic BP, yet had no effect on HR (p = 0.16) or diastolic BP (p = 0.10). HR and BP were significantly higher (p < 0.05) in prehypertensive men versus normotensives. Postexercise hypotension did not occur in either treatment, suggesting that intense resistance training with or without caffeine intake may mitigate the BP-lowering effect of resistance exercise.
authors.affiliation: CSU-San Marcos, Kinesiology, San Marcos, California, USA. astorino@csusm.edu
authors.forename: Todd Anthony
authors.initials: TA
authors.lastname: Astorino
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Martin
authors.forename: Lena
authors.initials: L
authors.lastname: Schachtsiek
authors.forename: Keau
authors.initials: K
authors.lastname: Wong
mesh_terms: D000328:Adult; D001794:Blood Pressure / Q000187:drug effects; D002110:Caffeine / Q000494:pharmacology / Q000627:therapeutic use*; D000697:Central Nervous System Stimulants / Q000494:pharmacology / Q000627:therapeutic use*; D003131:Combined Modality Therapy; D018592:Cross-Over Studies; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000503:physiopathology; D007022:Hypotension / Q000209:etiology / Q000517:prevention & control*; D008297:Male; D058246:Prehypertension / Q000503:physiopathology*; D055070:Resistance Training
chemical_list: D000697:Central Nervous System Stimulants; D002110:Caffeine