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Morgan Potter, John C. Spence, Normand Boulé, Jodie A. Stearns and Valerie Carson

average of the 2 or 3 measures. Cardiovascular fitness was measured using the modified Canadian Aerobic Fitness Test. This is a multistage step test where participants are encouraged to continue until they reach 85% of their predicted heart rate max (220 − age) ( 9 ). Predicted maximal aerobic power (VO 2

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Katja Krustrup Pedersen, Esben Lykke Skovgaard, Ryan Larsen, Mikkel Stengaard, Søren Sørensen and Kristian Overgaard

, & Pfeiffer, 2016 ). However, it remains to be determined whether there is a correlation between accelerometer output and oxygen consumption (VO 2 , ml·min −1 ·kg −1 ) during high-speed running. It has been proposed that the plateau phenomenon is caused by the built-in filtering of the accelerometer signals

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Natalie Frost, Michael Weinborn, Gilles E. Gignac, Shaun Markovic, Stephanie R. Rainey-Smith, Hamid R. Sohrabi, Ralph N. Martins, Jeremiah J. Peiffer and Belinda M. Brown

oxygen consumption (VO 2 max; Kramer et al., 1999 ). There are other studies that support the “selective improvement” hypothesis; however, they appear to selectively measure executive functioning subdomains or report composite (summary) scores of executive function. For example, a cross-sectional study

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Alis Bonsignore, David Field, Rebecca Speare, Lianne Dolan, Paul Oh and Daniel Santa Mina

to compare the CR outcomes of men with CVD and PCa to men with CVD without a history of PCa, including cardiorespiratory fitness (measured as VO 2 peak), cardiac hemodynamic profiles, body fat percentage, and body mass index (BMI). Methods Study Design This is a retrospective, longitudinal

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Marc-Olivier St-Aubin, Philippe Chalaye, François-Pierre Counil and Sylvie Lafrenaye

activity in adolescents relates to the capacity to modulate their pain perception. To fill this gap, most investigations have reported analgesic responses after running or cycling (of various intensity and duration). Thresholds have been identified for both the intensity (50% VO 2 max) and duration (10 min

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Andrés Pérez, Domingo J. Ramos-Campo, Cristian Marín-Pagan, Francisco J. Martínez-Noguera, Linda H. Chung and Pedro E. Alcaraz

Interestingly, POL has shown to improve VO 2 peak, anaerobic threshold, aerobic efficiency, time to exhaustion during an incremental test, 14 finishing time in 10-km races, 13 and running economy in ultrarunners. 9 In addition, fat metabolism has a key role in endurance events. 15 The maximal fat oxidation

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Yongming Li, Margot Niessen, Xiaoping Chen and Ulrich Hartmann

extrapolation of the linear relationship between the intensity and oxygen uptake (VO 2 ) during submaximal (35–90% VO 2 max) exercise and calculates the energy into aerobic and anaerobic portions. The 3-component method subdivides the anaerobic portion into lactic and alactic shares. 14 , 15 The anaerobic

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Cyril Granier, Chris R. Abbiss, Anaël Aubry, Yvon Vauchez, Sylvain Dorel, Christophe Hausswirth and Yann Le Meur

in accordance with the Declaration of Helsinki. Table 1 Physiological Characteristics of the XCO-MTB Cyclists (N = 8) Mean (SD) Range Age, y 22.4 (3.4) 19–28 Height, cm 179 (3) 173–183 Mass, kg 65.4 (3.5) 60.5–72.0 VO 2 max, mL·min −1 ·kg −1 79.9 (5.2) 73.4–88.0 VO 2 max, L·min −1 5.2 (0.3) 4

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Fabiana A. Machado, >Luiz G. A. Guglielmo, Camila C. Greco and Benedito S. Denadai

The objective of this study was to verify the effect of the exercise mode on slow component of VO2 (VO2SC) in children aged 11–12 years during severe-intensity exercise. After determination of the lactate threshold (LT) and peak VO2 (VO2peak) in both cycling (CE) and running exercise (TR), fourteen active boys completed a series of “square-wave” transitions of 6-min duration at 75%∆ [75%∆ = LT + 0.75 × (VO2peak—LT)] to determine the VO2 kinetics. The VO2SC was significantly higher in CE (180.5 ± 155.8 ml • min−1) than in TR (113.0 ± 84.2 ml · min−1). We can conclude that, although a VO2SC does indeed develop during TR in children, its magnitude is considerably lower than in CE during severe-intensity exercise.

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Andreas Schuchert and Thomas Meinertz

Context:

It is more feasible to assess functional capacity with an exercise test than to measure peak-exercise VO2.

Objective:

To assess whether maximal workload reliably predicts peak VO2.

Patients:

Thirty-six patients after aortic-valve replacement during routine follow-up.

Design:

Incremental symptom-limited cycle exercise test in the upright position with increments of 20 W/min.

Setting:

Out-clinic patients, university hospital.

Main Outcome Measures:

Maximal workload, ventilatory threshold, and peak VO2.

Results:

Maximal workload was 151 ± 39 W, and peak VO2, 1649 ± 486 ml/min. The correlation coefficient between maximal workload and peak VO2 was r = .92 (P < .0001). The regression equation for the estimation of peak VO2 was y = 11.7 (maximal workload in watts) – 110.7. Peak VO2 calculated with this equation was 1657 ± 451 ml/min.

Conclusions:

Maximal workload during ergometry in the upright position reliably predicted peak VO2.