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Melitta A. McNarry

Pulmonary oxygen uptake ( V ˙ O 2 ) kinetics following the onset of constant work rate exercise provides a useful assessment of the integrated capacity of the organism to transport and utilizes O 2 to support the increased rate of energy turnover in the contracting myocytes ( 104 ). The onset of

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Neil Armstrong and Jo Welsman

Aerobic fitness defines the ability to deliver oxygen to the muscles and to use it to generate energy to support muscle activity during exercise. Peak oxygen uptake ( V ˙ O 2 ), the highest V ˙ O 2 achieved during an incremental exercise test to exhaustion, is internationally recognized as the

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Kurt Jensen, Morten Frydkjær, Niels M.B. Jensen, Lucas M. Bannerholt, and Søren Gam

Although many physiological and anthropometric parameters alone or in combination can be used to predict rowing performance in Olympic rowing (2000 m), the most important physiological determinant of rowing performance is maximal oxygen uptake ( V ˙ O 2 max , in L·min −1 ). 1 – 6 Regular

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Kenneth D. Coutts

Nine male elite wheelchair athletes performed a continuous progressive exercise test on a wheelchair ergometer to determine peak oxygen uptake. Three were paraplegic distance track competitors (SCI–TR), three were amputee distance track athletes (AMP–TR), and three were paraplegic basketball players (SCI–BB). Analysis of variance indicated a significant difference in the relative peak oxygen uptake between the groups, with the SCI–TR and AMP–TR groups having higher values than the SCI–BB group. No group differences were found in age, mass, oxygen uptake, ventilation, heart rate, ventilatory equivalent for oxygen, and oxygen pulse at maximal exercise. The absence of the mass of the lower extremities in the AMP–TR group has a significant effect on peak oxygen uptake relative to body mass, and relative peak oxygen uptake differences between individual SCI–TR and AMP–TR athletes did not appear to reflect performance differences in actual distance track events.

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Aurélien Patoz, Thomas Blokker, Nicola Pedrani, Romain Spicher, Fabio Borrani, and Davide Malatesta

The importance of exercise intensity in training adaptations is well established. 1 The intensity is often prescribed based on the percentage of maximal oxygen uptake ( V ˙ O 2 max ) or maximal heart rate. 1 – 3 However, due to a large intersubject variability, the recommendation of exercise

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Bettina Karsten, Jonathan Baker, Fernando Naclerio, Andreas Klose, Antonino Bianco, and Alfred Nimmerichter

observed ( F 2,22  = 2.3, P  = .129, η p 2 = 0.17 ). Table 3 Oxygen-Uptake Responses During Time-Trial (TT) and Time-to-Exhaustion (TTE) Conditions, Mean ± SD TT TT1 TT2 TT3 Baseline (L/min) 1.12 ± 0.26 1.09 ± 0.30 1.10 ± 0.21 Primary Amplitude (L/min) 3.75 ± 0.68 3.91 ± 0.67 3.89 ± 0.84 Mean response

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Kate M. Sansum, Max E. Weston, Bert Bond, Emma J. Cockcroft, Amy O’Connor, Owen W. Tomlinson, Craig A. Williams, and Alan R. Barker

Maximal oxygen uptake ( V ˙ O 2 max ), typically expressed in relation to a measure of body size, is the “gold-standard” measure of cardiorespiratory fitness (CRF) ( 10 ). A valid measurement of V ˙ O 2 max is important in children and adolescents because a high CRF in youth is associated with a

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Kirsty Brock, Prokopios Antonellis, Matthew I. Black, Fred J. DiMenna, Anni Vanhatalo, Andrew M. Jones, and Stephen J. Bailey

The transition from rest to exercise mandates an immediate increase in skeletal-muscle contractile activity and ATP turnover. In contrast, the rate of pulmonary oxygen uptake ( V ˙ O 2 ) increases with exponential response kinetics, 1 which closely reflects the kinetics of muscle V ˙ O 2 , 2

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Tatiane Piucco, Rogério Soares, Fernando Diefenthaeler, Guillaume Y. Millet, and Juan M. Murias

delay; V ˙ O 2 , oxygen uptake; V ˙ O 2 Ap , V ˙ O 2 amplitude; V ˙ O 2 BL , baseline V ˙ O 2 ; V ˙ O 2 TD , V ˙ O 2 time delay; τ V ˙ O 2 , V ˙ O 2 time constant; τ [HHbMb], HHb time constant. Values are presented as mean (SD). a Different from treadmill. Figure 1 —Group mean V ˙ O 2 and

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Fernando G. Beltrami and Timothy D. Noakes

A high maximal oxygen uptake ( V ˙ O 2 max ) is considered a prerequisite for success in endurance sport. 1 V ˙ O 2 max is typically measured during incremental exercise tests, in which there is a linear increase in work rate and in oxygen consumption ( V ˙ O 2 ) over time and participants