کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2614668 1135030 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Heart Rate, Mean Arterial Blood Pressure, and Pulmonary Function Changes Associated With an Ultraendurance Triathlon
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی طب اورژانس
پیش نمایش صفحه اول مقاله
Heart Rate, Mean Arterial Blood Pressure, and Pulmonary Function Changes Associated With an Ultraendurance Triathlon
چکیده انگلیسی

ObjectiveWe studied 8 triathletes competing in the 3-day World Ultraman Championships (day 1: 10-km swim, 165-km bike; day 2: 261-km bike; day 3: 85-km run) to determine the effect of extreme physical exertion on heart rate (HR), mean arterial blood pressure (MAP) and pulmonary function, and their relation to overall athletic performance.MethodsBaseline HR, MAP and pulmonary function measurements were made 2 days before the start of competition. During the competition, HR and MAP measurements were made less than 30 minutes before the start and 10 minutes after the finish each race day. Pulmonary function was measured within 5 minutes of the finish each race day.ResultsForced vital capacity and forced expiratory volume in 1 second (FEV1.0) were reduced from baseline at the end of each race day. Peak expiratory flow (PEF) was reduced from baseline on days 1 and 3. Lower baseline resting HR was correlated (r = 0.77, P = .021) with faster total race times. The decreases in FEV1.0 and PEF over the whole race also correlated with performance (r = 0.77 and 0.93). Multiple regression analysis of baseline data indicated that HR and MAP had the strongest association with total race time prediction (54% and 19% of total). However, when declines in pulmonary function over the total race were also included, PEF was found to be associated with 87% of the total race time prediction.ConclusionsThe strong association in the decline in PEF to race time, though just correlative, suggests a link between pulmonary function and ultratriathlon performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wilderness & Environmental Medicine - Volume 17, Issue 4, December 2006, Pages 240–245
نویسندگان
, , ,