Effects Of Pre-workout Caffeine Supplementation On Post-exercise Hypotension

Post-exercise hypotension (PEH) plays an important role in the antihypertensive health benefits of exercise. While it has been shown that resistance exercise is effective at eliciting PEH, commonly consumed sports supplements may attenuate or completely eliminate response. Caffeine, a popular stimulant, often prior to PURPOSE: Determine effects pre-workout caffeine supplementation on PEH response following adults with above normal blood pressure (BP). METHODS: Participants (n = 5) were recreationally trained men and women resting BP (SBP > 120 and/or DBP 80). Following screening maximal strength testing, subjects reported lab for two separate training sessions where they placebo (3 mg/kg bodyweight) beverage 45-minutes The session consisted four sets 10 reps bench press, cable row, leg shoulder press 70-75% one rep max. heart rate measured pre-exercise every minutes 90 post-exercise. Data analyzed using 2-way (condition x time) repeated measures ANOVA. RESULTS: For SBP, there was main effect condition, time, trend towards significant condition time interaction (p 0.088). followed up by dependent t-tests revealed significantly greater SBP 30, 50, 70, 80 post-exercise compared condition. On average decreased ~4 mmHg from pre post while increased There no between differences CONCLUSION: These findings indicate reverses hypotensive observed should be avoided if are fully achieved.