The influence of race length on arterial compliance following an ultra-endurance marathon |
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Authors: | Alis Bonsignore Shannon S D Bredin Holly Wollmann Barb Morrison Andrew Jeklin Lauren Buschmann |
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Institution: | 1. Cardiovascular Physiology and Rehabilitation Laboratory, University of British Columbia, 6108 Thunderbird Boulevard, Vancouver, British Columbia, Canadaalis.bonsignore@uhn.ca;3. Cognitive and Functional Learning Laboratory, University of British Columbia, 6108 Thunderbird Boulevard, Vancouver, British Columbia, Canada;4. Cardiovascular Physiology and Rehabilitation Laboratory, University of British Columbia, 6108 Thunderbird Boulevard, Vancouver, British Columbia, Canada |
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Abstract: | There is inconclusive evidence concerning the effects of routine participation in ultra-endurance events on cardiovascular disease (CVD) risk. Arterial compliance is a reliable, non-invasive, and effective tool for evaluating CVD risk. The purpose of this research was to examine if race length influences acute changes in arterial compliance following an ultra-marathon event. A total of 46 ultra-marathon runners were recruited including 21 participants (39.8?±?8.3?years, 6 females) in the 80-km event and 25 participants (43.7?±?9.8?years, 3 female) in the 195-km event. Arterial compliance was measured via radial applanation tonometry (CR-2000, HDI) for diastolic pulse contour analysis before and following the race. Significant between-group differences were found for changes in large arterial compliance with a decrease (increase in stiffness) following the 195-km event and an increase following the 80-kilometre event (p?<?.05). Longer race lengths are associated with greater reductions in large arterial compliance following recreational ultra-marathon running. Assessment of arterial compliance might be a useful prognostic tool to assess the long-term risk of CVD among ultra-marathon runners. |
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Keywords: | Arterial compliance ultra-marathon vascular function cardiovascular disease |
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