Validation of a single-stage fixed-rate step test for the prediction of maximal oxygen uptake in healthy adults

2015 ◽  
Vol 36 (5) ◽  
pp. 401-406 ◽  
Author(s):  
Dominique Hansen ◽  
Nele Jacobs ◽  
Herbert Thijs ◽  
Paul Dendale ◽  
Neree Claes
Keyword(s):  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Healthy Adults ◽  
Single Stage ◽  
Step Test ◽  
Fixed Rate ◽  
Rate Step

scholarly journals Validity of Submaximal Step Tests to Estimate Maximal Oxygen Uptake in Healthy Adults

2015 ◽  
Vol 46 (5) ◽  
pp. 737-750 ◽  
Author(s):  
Hunter Bennett ◽  
Gaynor Parfitt ◽  
Kade Davison ◽  
Roger Eston
Keyword(s):  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Healthy Adults

scholarly journals The Validity of the YMCA 3-Minute Step Test for Estimating Maximal Oxygen Uptake in Healthy Korean and Vietnamese Adults

2020 ◽  
Vol 10 (1) ◽  
pp. 21-29
Author(s):  
Nguyen Thi Van Kieu ◽  
Su-Jin Jung ◽  
Sang-Wook Shin ◽  
Han-Wool Jung ◽  
Eun-Soo Jung ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Step Test

scholarly journals Linear and Nonlinear Prediction Models Show Comparable Precision for Maximal Mean Speed in a 4x1000 m Field Test

2017 ◽  
Vol 16 (2) ◽  
pp. 78-87
Author(s):  
J. M. Jäger ◽  
J. Kurz ◽  
H. Müller
Keyword(s):  
Oxygen Uptake ◽  
Field Test ◽  
Maximal Oxygen Uptake ◽  
Prediction Models ◽  
Mean Squared Error ◽  
Endurance Performance ◽  
Step Test ◽  
Nonlinear Prediction ◽  
Linear And Nonlinear ◽  
Mlr Model

AbstractMaximal oxygen uptake (VO2max) is one of the most distinguished parameters in endurance sports and plays an important role, for instance, in predicting endurance performance. Different models have been used to estimate VO2max or performance based on VO2max. These models can use linear or nonlinear approaches for modeling endurance performance. The aim of this study was to estimate VO2max in healthy adults based on the Queens College Step Test (QCST) as well as the Shuttle Run Test (SRT) and to use these values for linear and nonlinear models in order to predict the performance in a maximal 1000 m run (i.e. the speed in an incremental 4×1000 m Field Test (FT)). 53 female subjects participated in these three tests (QCST, SRT, FT). Maximal oxygen uptake values from QCST and SRT were used as (a) predictor variables in a multiple linear regression (MLR) model and as (b) input variables in a multilayer perceptron (MLP) after scaling in preprocessing. Model output was speed [km·h−1] in a maximal 1000 m run. Maximal oxygen uptake values estimated from QCST (40.8 ± 3.5 ml·kg−1·min−1) and SRT (46.7 ± 4.5 ml·kg−1·min−1) were significantly correlated (r = 0.38, p < 0.01) and maximal mean speed in the FT was 12.8 ± 1.6 km·h−1. Root mean squared error (RMSE) of the cross validated MLR model was 0.89 km·h−1while it was 0.95 km·h−1for MLP. Results showed that the accuracy of the applied MLP was comparable to the MLR, but did not outperform the linear approach.

scholarly journals Study on the Relationship between Lifestyles and Maximal Oxygen Uptake in Healthy Adults.

1997 ◽  
Vol 52 (2) ◽  
pp. 470-474 ◽  
Author(s):  
Kunihiro KAWABATA ◽  
Masahide IMAKI ◽  
Miho OHGURI ◽  
Hiroshi KONDO ◽  
Yoshitaka HAYASHI ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Healthy Adults ◽  
The Relationship

Comparison of the Danish step test and the watt-max test for estimation of maximal oxygen uptake: the Health2008 study

2012 ◽  
Vol 20 (6) ◽  
pp. 1088-1094 ◽  
Author(s):  
Mette Aadahl ◽  
Morten Zacho ◽  
Allan Linneberg ◽  
Betina H Thuesen ◽  
Torben Jørgensen
Keyword(s):  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Step Test

High-Intensity Kayak Performance After Adaptation to Intermittent Hypoxia

2006 ◽  
Vol 1 (3) ◽  
pp. 246-260 ◽  
Author(s):  
Darrell L. Bonetti ◽  
Will G. Hopkins ◽  
Andrew E. Kilding
Keyword(s):  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Lactate Threshold ◽  
Peak Power ◽  
Hemoglobin Concentration ◽  
Ambient Air ◽  
Post Treatment ◽  
Step Test ◽  
Hypoxic Exposure ◽  
Exercise Economy

Context:Live-high train-low altitude training produces worthwhile gains in performance for endurance athletes, but the benefits of adaptation to various forms of artificial altitude are less clear.Purpose:To quantify the effects of intermittent hypoxic exposure on kayak performance.Methods:In a crossover design with a 6-week washout, we randomized 10 subelite male sprint kayak paddlers to hypoxia or control groups for 3 weeks (5 days/week) of intermittent hypoxic exposure using a nitrogen-filtration device. Each day's exposure consisted of alternately breathing hypoxic and ambient air for 5 minutes each over 1 hour. Performance tests were an incremental step test to estimate peak power, maximal oxygen uptake, exercise economy, and lactate threshold; a 500-m time trial; and 5 × 100-m sprints. All tests were performed on a wind-braked kayak ergometer 7 and 3 days pretreatment and 3 and 10 days post treatment. Hemoglobin concentration was measured at 1 day pretreatment, 5 and 10 days during treatment, and 3 days after treatment.Results:Relative to control, at 3 days post treatment the hypoxia group showed the following increases: peak power 6.8% (90% confidence limits, ± 5.2%), mean repeat sprint power 8.3% (± 6.7%), and hemoglobin concentration 3.6% (± 3.2%). Changes in lactate threshold, mean 500-m power, maximal oxygen uptake, and exercise economy were unclear. Large effects for peak power and mean sprint speed were still present 10 days posthypoxia.Conclusion:These effects of intermittent hypoxic exposure should enhance performance in kayak racing. The effects might be mediated via changes in oxygen transport.

A SIMPLE, VALID STEP TEST FOR ESTIMATING MAXIMAL OXYGEN UPTAKE IN EPIDEMIOLOGIC STUDIES1

1985 ◽  
Vol 121 (3) ◽  
pp. 382-390 ◽  
Author(s):  
STEVEN F. SICONOLFI ◽  
CAROL EWING GARBER ◽  
THOMAS M. LASATER ◽  
RICHARD A. CARLETON
Keyword(s):  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Step Test

scholarly journals Is a verification phase useful for confirming maximal oxygen uptake in apparently healthy adults? A systematic review and meta-analysis

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0247057
Author(s):  
Victor A. B. Costa ◽  
Adrian W. Midgley ◽  
Sean Carroll ◽  
Todd A. Astorino ◽  
Tainah de Paula ◽  
...  
Keyword(s):  
Systematic Review ◽  
Oxygen Uptake ◽  
Cardiorespiratory Fitness ◽  
Maximal Oxygen Uptake ◽  
Meta Analysis ◽  
Healthy Adults ◽  
Phase Duration ◽  
Funnel Plot ◽  
Exercise Modality ◽  
Apparently Healthy

Background The ‘verification phase’ has emerged as a supplementary procedure to traditional maximal oxygen uptake (VO2max) criteria to confirm that the highest possible VO2 has been attained during a cardiopulmonary exercise test (CPET). Objective To compare the highest VO2 responses observed in different verification phase procedures with their preceding CPET for confirmation that VO2max was likely attained. Methods MEDLINE (accessed through PubMed), Web of Science, SPORTDiscus, and Cochrane (accessed through Wiley) were searched for relevant studies that involved apparently healthy adults, VO2max determination by indirect calorimetry, and a CPET on a cycle ergometer or treadmill that incorporated an appended verification phase. RevMan 5.3 software was used to analyze the pooled effect of the CPET and verification phase on the highest mean VO2. Meta-analysis effect size calculations incorporated random-effects assumptions due to the diversity of experimental protocols employed. I2 was calculated to determine the heterogeneity of VO2 responses, and a funnel plot was used to check the risk of bias, within the mean VO2 responses from the primary studies. Subgroup analyses were used to test the moderator effects of sex, cardiorespiratory fitness, exercise modality, CPET protocol, and verification phase protocol. Results Eighty studies were included in the systematic review (total sample of 1,680 participants; 473 women; age 19–68 yr.; VO2max 3.3 ± 1.4 L/min or 46.9 ± 12.1 mL·kg-1·min-1). The highest mean VO2 values attained in the CPET and verification phase were similar in the 54 studies that were meta-analyzed (mean difference = 0.03 [95% CI = -0.01 to 0.06] L/min, P = 0.15). Furthermore, the difference between the CPET and verification phase was not affected by any of the potential moderators such as verification phase intensity (P = 0.11), type of recovery utilized (P = 0.36), VO2max verification criterion adoption (P = 0.29), same or alternate day verification procedure (P = 0.21), verification-phase duration (P = 0.35), or even according to sex, cardiorespiratory fitness level, exercise modality, and CPET protocol (P = 0.18 to P = 0.71). The funnel plot indicated that there was no significant publication bias. Conclusions The verification phase seems a robust procedure to confirm that the highest possible VO2 has been attained during a ramp or continuous step-incremented CPET. However, given the high concordance between the highest mean VO2 achieved in the CPET and verification phase, findings from the current study would question its necessity in all testing circumstances. PROSPERO Registration ID CRD42019123540.

A comparison of maximal oxygen uptake by treadmill and step-test procedures.

1966 ◽  
Vol 21 (4) ◽  
pp. 1387-1388 ◽  
Author(s):  
F W Kasch ◽  
W H Phillips ◽  
W D Ross ◽  
J E Carter ◽  
J L Boyer
Keyword(s):  
Oxygen Uptake ◽  
Maximal Oxygen Uptake ◽  
Step Test ◽  
Test Procedures
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