Oxygen-Uptake Efficiency Slope as a Determinant of Fitness in Overweight Adolescents

Drinkard, Bart; Roberts, Mary D.; Ranzenhofer, Lisa M.; Han, Joan C.; Yanoff, Lisa B.; Merke, Deborah P.; Savastano, David M.; Brady, Sheila M.; Yanovski, Jack A.

doi:10.1249/mss.0b013e31812e52b3

Cited by 43 publications

(80 citation statements)

References 30 publications

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“…An example of the OUES is shown in Figure 2, where the graph on the left is not log transformed and is modeled by a logarithmic relationship and the graph on the right is log transformed to reveal a simplified modeled linear relationship, where the slope of the line given is the OUES. found that 24% of severely overweight and 10% of nonoverweight subjects failed to achieve the VO 2peak criteria set forth in the study, representing a lack of potential data if one were to employ maximal exercise measurements only (32).…”

Section: Ouesmentioning

confidence: 98%

“…This allows for fitness and functional comparisons across different subject populations. Recent studies have shown that OUES is influenced by age, body size, and even the musculature of the secondary respiratory muscles (5,32,53,72). Additionally, the two variables comprising the OUES are known to be affected by metabolism; so it is possible that the OUES might vary by maturation as a function of muscle metabolism (14).…”

Section: Significance Of the Problemmentioning

confidence: 99%

“…Perhaps due to some of the challenges applying in exercise testing procedures in children and youth (64), several studies have examined OUES in this population (1,17,18,32,51,53). The first study to introduce the concept of the OUES utilized a pediatric population (11.7 ± 4.4 years) and compared healthy controls to children with congenital heart disease with the idea of developing an objective, maximal effort independent measurement of cardiorespiratory function in a population that would have difficulty achieving maximal test criteria (17).…”

Section: Oues In Children and Adolescentsmentioning

confidence: 99%

“…However, recent studies also have shown that age and size influence OUES, which prevents meaningful comparisons of OUES between age groups and people of different sizes (5,32,53). In addition, it is possible maturation may also influence OUES as measures of VO 2 , VCO 2 , and V E during exercise are influenced by metabolism and metabolism is in turn affected by maturation (52).…”

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confidence: 99%

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The Influence of Maturation on the Oxygen Uptake Efficiency Slope

Rogowski

Guilkey

Stephens³

et al. 2012

Pediatric Exercise Science

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This study examined the influence of maturation on the oxygen uptake efficiency slope (OUES) in healthy male subjects. Seventy-six healthy male subjects (8–27 yr) were divided into groups based on maturation status: prepubertal (PP), midpubertal (MP), late-pubertal (LP), and young-adult (YA) males. Puberty status was determined by physical examination. Subjects performed a graded exercise test on a cycle ergometer to determine OUES. Group differences were assessed using a one-way ANOVA. OUES values (VO2L·min1/log10VEL·min−1) were lower in PP and MP compared with LP and YA (p < .05). When OUES was expressed relative to body mass (VO2mL·kg−1·min−1/log10VEmL·kg−1·min−1) differences between groups reversed whereby PP and MP had higher mass relative OUES values compared with LP and YA (p < .05). Adjusting OUES by measures of body mass failed to eliminate differences across maturational groups. This suggests that qualitative factors, perhaps related to oxidative metabolism, account for the responses observed in this study.

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Section: Ouesmentioning

confidence: 98%

Section: Significance Of the Problemmentioning

confidence: 99%

Section: Oues In Children and Adolescentsmentioning

confidence: 99%

mentioning

confidence: 99%

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The Influence of Maturation on the Oxygen Uptake Efficiency Slope

Rogowski

Guilkey

Stephens³

et al. 2012

Pediatric Exercise Science

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“…In fact, it has been used to evaluate aerobic fitness in a wide number of subjects, including healthy men [12], overweight adolescents [15], and cardiovascular disease patients [12]. It is interesting to note that the OUES determination is not influenced by some intervenient factors, such as the use of experienced and nonexperienced evaluators or test protocol [12].…”

Section: Introductionmentioning

confidence: 99%

Maximal and submaximal oxygen uptake efficiency slope: influence of cardiorespiratory variables and maximal dynamic strength

Pasqua¹,

Damasceno²,

Lima‐Silva³

et al. 2017

Pulm Crit Care Med

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Objective: The purpose of this study was to investigate if the OUES is determined by the same factors when calculated with VO 2 and VE values throughout the incremental test (OUES 100 ) or using values until 80% of the VO 2 max (OUES 80 ).Methods: 116 healthy male individuals performed a maximal incremental test, two constant-speed tests and a maximal dynamic strength test.Results: OUES 100 and OUES 80 were significantly correlated (r = 0.964; P < 0.001). VO 2 max was the main determinant factor for both OUES 100 and OUES 80 . Additionally, maximal heart rate (HRmax) and maximal dynamic strength (1RM) were the other variables selected for the two models as secondary variables. However, the importances of them were inversed, with the HRmax being the second determinant of the OUES 80 , while 1RM the second determinant for OUES 100 . The running economy, ventilatory threshold and respiratory compensation point were not selected for the models (P > 0.05). Conclusions:Our results suggest that the OUES 80 might satisfactorily replace maximal variables in aerobic fitness evaluations without maximal effort requirement. VO 2 max seems to be the main factor determining oxygen uptake efficiency slope, regardless the range (maximal or submaximal) used to determine. Otherwise, the muscle strength plays a more important role to the oxygen uptake efficiency considering maximal intensities, while the cardiovascular system seems to more strongly influence the oxygen uptake efficiency only until submaximal intensities.

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Long‐term effect of epoetin alfa on clinical and biochemical markers in friedreich ataxia

et al. 2016

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Although results are not in favor of an effect of epoetin alfa in Friedreich ataxia, this is the largest trial testing its effect. It is still possible that epoetin alfa may show some symptomatic effect on upper-limb performance. This study provides class I evidence that erythropoietin does not ameliorate VO2 max in patients with Friedreich ataxia. © 2016 International Parkinson and Movement Disorder Society.

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Oxygen-Uptake Efficiency Slope as a Determinant of Fitness in Overweight Adolescents

Abstract: OUES differs significantly in overweight and nonoverweight adolescents. The wide interindividual variation and the exercise intensity dependence of OUES preclude its use in clinical practice as a predictor of VO2peak.

Cited by 43 publications

References 30 publications

The Influence of Maturation on the Oxygen Uptake Efficiency Slope

The Influence of Maturation on the Oxygen Uptake Efficiency Slope

Maximal and submaximal oxygen uptake efficiency slope: influence of cardiorespiratory variables and maximal dynamic strength

Long‐term effect of epoetin alfa on clinical and biochemical markers in friedreich ataxia

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