Key result
Older men exhibited significantly greater increases in systolic blood pressure and total peripheral resistance during high-load resistance exercise compared to young men.
Why the study?
Studies evaluating whether aging leads to higher blood pressure elevations following resistance exercise have shown contradictory findings, likely due to the timing of assessment.
Does high load resistance exercise elicit different hemodynamic and blood pressure responses in older compared to young men?
Cross-Sectional (n=16)
No
Does high load resistance exercise elicit different hemodynamic and blood pressure responses in older compared to young men?
Resistance exercise performed to fatigue leads to higher blood pressure increases in older men, suggesting blood pressure should be monitored during such exercise for safety in this population.
BP measurement timing after RE sets may explain age-related contradictions; hypothesis-generating for acute CV risk in older adults.
Intense blood pressure elevations during resistance exercise (RE) could lead to risk of acute cardiovascular events. Since, the natural aging process contribute to rest and exercise elevations in BP it could be expected higher BP elevations following RE in older individuals. However, the studies have shown contradictory findings which are likely due to the time of BP assessment following exercise. Thus, we compared BP changes after each set and rest interval in young and older men. Sixteen men (8 each group) underwent four sets until fatigue at leg press equipment with high load (80% 1RM). BP was assessed, by finger photoplethysmography and the other cardiovascular measurements were estimated based on body characteristics. Systolic BP (SBP) and mean BP (MBP) increased more in older men at first sets; heart rate (HR) increased more in young during all sets and rest intervals; cardiac output (CO) maintained higher all the time in young; and total peripheral resistance (TPR) increased more during all sets in older men. Thus, the present study shows that RE performed to fatigue leads to higher BP increase in older men suggesting BP might be monitored during RE for safe proposal especially on this higher risk population.
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Sardeli et al. (2021) conducted a cross-sectional in Healthy untrained men (n=16). Older age vs. Young men was evaluated on Hemodynamic responses (SBP, MBP, HR, CO, TPR) during resistance exercise sets and rest intervals. Older men exhibited significantly greater increases in systolic blood pressure and total peripheral resistance during high-load resistance exercise compared to young men.
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