Key result
Long-term physical activity in older men attenuates age-related declines in cardiovagal baroreflex gain (13.3 vs 6.8 ms/mm Hg in older untrained men) by maintaining neural vagal control.
Why the study?
Does long-term physical activity maintain cardiovagal baroreflex function in older men?
Cross-Sectional (n=28)
Does long-term physical activity maintain cardiovagal baroreflex function in older men?
Absolute Event Rate: 13.3% vs 6.8%
Long-term physical activity attenuates age-related declines in cardiovagal baroreflex gain primarily by maintaining neural vagal control rather than just preventing vascular stiffening.
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Supports lifelong activity for baroreflex preservation in older men; leaves open causality pending prospective trials.
Hunt et al. (2001) conducted a cross-sectional in Age-related cardiovagal baroreflex decline (n=28). Long-term physical activity vs. Untrained status (young and older) was evaluated on Integrated cardiovagal baroreflex gain. Long-term physical activity in older men attenuates age-related declines in cardiovagal baroreflex gain (13.3 vs 6.8 ms/mm Hg in older untrained men) by maintaining neural vagal control.
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