title: The influence of race length on arterial compliance following an ultra-endurance marathon.
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.
authors.affiliation: a Cardiovascular Physiology and Rehabilitation Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Alis
authors.initials: A
authors.lastname: Bonsignore
authors.affiliation: b Cognitive and Functional Learning Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Shannon S D
authors.initials: SS
authors.lastname: Bredin
authors.affiliation: a Cardiovascular Physiology and Rehabilitation Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Holly
authors.initials: H
authors.lastname: Wollmann
authors.affiliation: a Cardiovascular Physiology and Rehabilitation Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Barb
authors.initials: B
authors.lastname: Morrison
authors.affiliation: a Cardiovascular Physiology and Rehabilitation Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Andrew
authors.initials: A
authors.lastname: Jeklin
authors.affiliation: a Cardiovascular Physiology and Rehabilitation Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Lauren
authors.initials: L
authors.lastname: Buschmann
authors.affiliation: a Cardiovascular Physiology and Rehabilitation Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Josh
authors.initials: J
authors.lastname: Robertson
authors.affiliation: b Cognitive and Functional Learning Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Elizabeth Jean
authors.initials: EJ
authors.lastname: Buckler
authors.affiliation: a Cardiovascular Physiology and Rehabilitation Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Duncan
authors.initials: D
authors.lastname: McGuinty
authors.affiliation: b Cognitive and Functional Learning Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Mark S
authors.initials: MS
authors.lastname: Rice
authors.affiliation: a Cardiovascular Physiology and Rehabilitation Laboratory , University of British Columbia , 6108 Thunderbird Boulevard, Vancouver , British Columbia , Canada.
authors.forename: Darren E R
authors.initials: DE
authors.lastname: Warburton
mesh_terms: D000328:Adult; D001158:Arteries / Q000502:physiology; D001794:Blood Pressure / Q000502:physiology*; D003187:Compliance / Q000502:physiology*; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010807:Physical Endurance / Q000502:physiology*; D012420:Running / Q000502:physiology*; D055815:Young Adult
keywords: Arterial compliance; cardiovascular disease; ultra-marathon; vascular function