Abstract
This study aims to compare direct oxygen uptake (Vo!) measurements during submaximaland supramaximal swimmingwith the most common used procedures to estimates derived from postexercise measurements. 14 elite swimmers performed 3 x 200 m front crawl swims at increasing submaximal speeds (0.9, 1.0 and 1.1 m/s) and, in a separated session, a 200 m all-out swim. Vo!was measured breath by breath (K4b2, Cosmed) and heart rate (HR) was recorded beat by beat (CardioSwim, Freelap), 1 min before, during and 3 min postexercise. Vo!"#$(0-20) and Vo!"#$%(0-20) was the average of the last 20 s of effort in the submaximal and maximal tests (respectively) and were used as criterion values. Postexercise measures were compared for both intensities: (i) first 20 s average [Vo!"#$(0-20) and Vo!"#$%(0-20)];(ii) linear and semilogarithmic backward extrapolation of the first 3 or 4 x 20 s averages [BEsub; BEpeak; LOGsub; LOGpeak]; and (iii) predicted values using HR-Vo!mathematical modelling [pVo!"#$(0−20)and pVo!"#$%(0−20)]. RM-ANOVA and post-hoc Bonferroni tests compared exercise and estimated Vo!differences (p < 0.05). For supramaximal swimming, criterion Vo!"#$%(-20-0) (2985 ± 430 ml/kg·min-1) was different from all estimated parameters (p < 0.010) except pVo!"#$%(0−20) (3020 ± 461 ml/min; mean diff. 1.1%, p > 0.99). For submaximal intensity, Vo!"#$(0−20)(1780 ± 246 ml/min) was the only value differing
Original language | German |
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Publication status | Published - 2017 |
Event | 22nd Annual Congress of the European College of Sport Science - Essen, Germany Duration: 05.07.2017 → 08.07.2017 |
Other
Other | 22nd Annual Congress of the European College of Sport Science |
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Country/Territory | Germany |
City | Essen |
Period | 05.07.17 → 08.07.17 |