Methodological considerations for the determination of VO2max in healthy men

Succi, Pasquale J.; Benitez, Brian; Kwak, Minyoung; Bergstrom, Haley C.

doi:10.1007/s00421-022-05033-y

Cited by 2 publications

(15 citation statements)

References 31 publications

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“…The use of several indices of reliability allows for the determination of the absolute and relative reliability, which enables an individual to compare across studies [ 17 , 40 ]. The ICC, MD, SEM, and CoV for the

O 2CPET and

O 2verification in this study were consistent with previous work examining the CPET and verification phase protocols (ICCs = 0.89–0.99, MDs = 0.17–0.21 L⋅min −1 , SEMs = 0.06–0.16 L⋅min −1 , and CoVs = 2.1–3.8%) [ 6 , 11 , 12 , 27 , 28 , 29 ]. Thus, the current findings further supported that the

O 2CPET and

O 2verification can be reliably determined in younger, healthy, and well-motivated subjects.…”

Section: Discussionsupporting

confidence: 91%

“…These works, in addition to others [ 4 , 25 , 30 ], demonstrated that young healthy subjects accustomed to exhaustive exercise seldom demonstrate differences between the

O 2CPET and

O 2verification , and in some cases, they demonstrate no differences at all. The lack of individual subjects who demonstrate

O 2verification values that are either equivalent or are significantly less than the

O 2CPET [ 4 , 25 , 27 , 28 , 29 ] support previous work [ 23 ] that has questioned the need for the verification phase in measuring the

O 2max in all populations and settings. The additional benefit of the quantification of the MD in specific populations and in different modalities is that future works, such as training or nutritional interventions, are able to use the MD as a threshold by which individual responses can be examined without the need to perform verification phases.…”

Section: Introductionsupporting

confidence: 69%

“…However, it has been suggested that the verification phase may not be necessary in young healthy subjects that are accustomed to exhaustive exercise [ 18 ]. In addition, previous studies in this population have demonstrated highly reproducible

O 2max values based on the group mean responses [ 18 , 23 , 27 , 28 , 29 ]. The findings of the current study provide additional support to this notion as both the

O 2CPET and

O 2verification demonstrated “excellent” reliabilities based on the ICC along with the MD, SEM, and CoV ( Table 3 ).…”

Section: Discussionmentioning

confidence: 80%

“…Previous work [ 27 , 28 , 29 ] has used the MD to examine the individual differences in the

O 2CPET and

O 2verification in treadmill running in men and women and in cycle ergometry in men. These works, in addition to others [ 4 , 25 , 30 ], demonstrated that young healthy subjects accustomed to exhaustive exercise seldom demonstrate differences between the

O 2CPET and

O 2verification , and in some cases, they demonstrate no differences at all.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the purpose of this study was to use a test–retest approach to examine the reliability, mean, and individual differences between the

O 2CPET and

O 2verification in healthy, recreationally trained, and well-motivated women during cycle ergometry. Based on previous examinations of the verification phase using similar methodologies [ 27 , 28 , 29 ], it was hypothesized that (1) both the

O 2CPET and

O 2verification would have ‘excellent’ test–retest reliabilities; (2) there would be no mean differences between the

O 2CPET and

O 2verification ; (3) no individual would exceed the MD between the test and retest difference for the

O 2CPET or

O 2verification ; and (4) based on the previously reported incidence of individual differences [ 4 , 13 ], two or fewer subjects would exhibit a difference between the

O 2CPET and

O 2verification that exceeded the MD.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Individual V˙O2max Responses during a Cardiopulmonary Exercise Test and the Verification Phase in Physically Active Women

Succi,

Benitez,

Kwak

et al. 2023

JFMK

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This study aimed to investigate the test–retest reliability, mean, and individual responses in the measurement of maximal oxygen consumption (V˙O2max) during a cardiopulmonary exercise test (CPET) and the verification phase during cycle ergometry in women. Nine women (22 ± 2 yrs, 166.0 ± 4.5 cm, 58.6 ± 7.7 kg) completed a CPET, passively rested for 5 min, and then completed a verification phase at 90% of peak power output to determine the highest V˙O2 from the CPET (V˙O2CPET) and verification phase (V˙O2verification) on 2 separate days. Analyses included a two-way repeated measures ANOVA, intraclass correlation coefficients (ICC2,1), standard errors of the measurement (SEM), minimal differences (MD), and coefficients of variation (CoV). There was no test (test 1 versus test 2) × method (CPET vs. verification phase) interaction (p = 0.896) and no main effect for method (p = 0.459). However, test 1 (39.2 mL·kg−1·min−1) was significantly higher than test 2 (38.3 mL·kg−1·min−1) (p = 0.043). The V˙O2CPET (ICC = 0.984; CoV = 1.98%; SEM = 0.77 mL·kg−1·min−1; MD = 2.14 mL·kg−1·min−1) and V˙O2verification (ICC = 0.964; CoV = 3.30%; SEM = 1.27 mL·kg−1·min−1; MD = 3.52 mL·kg−1·min−1) demonstrated “excellent” reliability. Two subjects demonstrated a test 1 V˙O2CPET that exceeded the test 2 V˙O2CPET, and one subject demonstrated a test 1 V˙O2verification that exceeded the test 2 V˙O2verification by more than the respective CPET and verification phase MD. One subject demonstrated a V˙O2CPET that exceeded the V˙O2verification, and one subject demonstrated a V˙O2verification that exceeded the V˙O2CPET by more than the MD. These results demonstrate the importance of examining the individual responses in the measurement of the V˙O2max and suggest that the MD may be a useful threshold to quantify real individual changes in V˙O2.

show abstract

O 2CPET and

O 2verification can be reliably determined in younger, healthy, and well-motivated subjects.…”

Section: Discussionsupporting

confidence: 91%

“…These works, in addition to others [ 4 , 25 , 30 ], demonstrated that young healthy subjects accustomed to exhaustive exercise seldom demonstrate differences between the

O 2CPET and

O 2verification , and in some cases, they demonstrate no differences at all. The lack of individual subjects who demonstrate

O 2verification values that are either equivalent or are significantly less than the

O 2CPET [ 4 , 25 , 27 , 28 , 29 ] support previous work [ 23 ] that has questioned the need for the verification phase in measuring the

Section: Introductionsupporting

confidence: 69%

O 2max values based on the group mean responses [ 18 , 23 , 27 , 28 , 29 ]. The findings of the current study provide additional support to this notion as both the

O 2CPET and

O 2verification demonstrated “excellent” reliabilities based on the ICC along with the MD, SEM, and CoV ( Table 3 ).…”

Section: Discussionmentioning

confidence: 80%

“…Previous work [ 27 , 28 , 29 ] has used the MD to examine the individual differences in the

O 2CPET and

O 2verification , and in some cases, they demonstrate no differences at all.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the purpose of this study was to use a test–retest approach to examine the reliability, mean, and individual differences between the

O 2CPET and

O 2verification would have ‘excellent’ test–retest reliabilities; (2) there would be no mean differences between the

O 2CPET and

O 2verification ; (3) no individual would exceed the MD between the test and retest difference for the

O 2CPET or

O 2verification ; and (4) based on the previously reported incidence of individual differences [ 4 , 13 ], two or fewer subjects would exhibit a difference between the

O 2CPET and

O 2verification that exceeded the MD.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Analysis of Individual V˙O2max Responses during a Cardiopulmonary Exercise Test and the Verification Phase in Physically Active Women

Succi,

Benitez,

Kwak

et al. 2023

JFMK

Self Cite

View full text Add to dashboard Cite

show abstract

Test–Retest Reliability of Running Economy and Metabolic and Cardiorespiratory Parameters During a Multistage Incremental Treadmill Test in Male Middle- and Long-Distance Runners

Brady,

Roantree,

Egan

2024

International Journal of Sport Nutrition and Exercise Metabolism

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This study investigated the test–retest reliability of running economy (RE) and metabolic and cardiorespiratory parameters related to endurance running performance using a multistage incremental treadmill test. On two occasions separated by 21–28 days, 12 male middle- and long-distance runners ran at 10, 11, 12, 13, and 14 km/hr for 8 min each stage, immediately followed by a ramp test to volitional exhaustion. Carbohydrate (10% maltodextrin solution) was consumed before and during the test to provide ∼1 g/min of exercise. RE, minute ventilation (), oxygen consumption (), carbon dioxide production (), respiratory exchange ratio (RER), heart rate (HR), ratings of perceived exertion (RPE), and blood glucose and lactate concentrations were recorded for each stage and at volitional exhaustion. Time-to-exhaustion (TTE) and peak oxygen consumption () during the ramp test were also recorded. Absolute reliability, calculated as the coefficient of variation (CV) between repeated measures, ranged from 2.3% to 3.1% for RE, whereas relative reliability, calculated as the intraclass correlation coefficient (ICC), ranged from .42 to .79. , , , , RER, and HR had a CV of 1.1%–4.3% across all stages. TTE and RPE had a CV of 7.2% and 2.3%–10.8%, respectively, while glucose and lactate had a CV of 4.0%–17.8%. All other parameters, except for blood glucose, were demonstrated to have good-to-excellent relative reliability assessed by ICC. Measures of RE, , and TTE were reliable during this two-phase multistage incremental treadmill test in a cohort of trained and highly trained male middle- and long-distance runners.

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Methodological considerations for the determination of VO2max in healthy men

Cited by 2 publications

References 31 publications

Analysis of Individual V˙O2max Responses during a Cardiopulmonary Exercise Test and the Verification Phase in Physically Active Women

Analysis of Individual V˙O2max Responses during a Cardiopulmonary Exercise Test and the Verification Phase in Physically Active Women

Test–Retest Reliability of Running Economy and Metabolic and Cardiorespiratory Parameters During a Multistage Incremental Treadmill Test in Male Middle- and Long-Distance Runners

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