Oxygen Uptake Efficiency Slope in Healthy Children

Akkerman, Moniek; Brussel, Marco van; Bongers, Bart C.; Hulzebos, Erik H.J.; Helders, Paul J. M.; Takken, Tim

doi:10.1123/pes.22.3.431

Cited by 45 publications

(68 citation statements)

References 30 publications

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“…A recent study involving boys and girls 7-17 found no differences between boys and girls in absolute values of VO 2peak , V Epeak , and OUES, but when adjusted for body mass, FFM, and BSA that VO 2peak and V Epeak were higher in boys with still no difference in OUES (1). In light of these findings, it was recommend that given the influence of size parameters on OUES, especially in the pediatric population, it is appropriate to express OUES relative to anthropometric measurements, with FFM as the best means to correct for the influence of size.…”

Section: Oues In Children and Adolescentsmentioning

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%

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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: Oues In Children and Adolescentsmentioning

confidence: 99%

Section: Oues In Children and Adolescentsmentioning

confidence: 99%

The Influence of Maturation on the Oxygen Uptake Efficiency Slope

Rogowski

Guilkey

Stephens³

et al. 2012

Pediatric Exercise Science

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“…The test was completed when (a) respiratory exchange ratio (RER) gain was >1.1 according to changes of VCO 2 /VO 2 on screen, (b) the HR of >185, and (c) the announcement of exhaustive case. [22,23] In this protocol, for the first four stages of ergometry, 15 s and in the next stages 5-7 min were taken and the whole protocol lasted 10 min. [21,24] To determine VO 2 max in the direct method of analyzer gas, the mean of every 10 s of measuring VO 2 and VCO 2 was recorded and physiological information in final 20 s of ergometry was used to determine the practical capacity.…”

Section: Methodsmentioning

confidence: 99%

Investigating the validity of allometrically designed equations to estimate VO2max in Iranian boys

Sazvar¹,

Nazem²

2018

Natl J Physiol Pharm Pharmacol

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Background: Cardiac respiratory system plays an important role in individuals' health, promotion of patients' life quality, and professional athletes' performance. It is of great importance to measure it for exchange of inhaled gases during sports stress tests as an efficient method to study the physiological efficacy of cardiac respiratory system and understand the active skeletal muscle metabolism in work measurement. Regarding the problems of measuring inhaled gases in sports maximal tests, using safe and simple methods with good validity in estimating the individuals' cardiac respiratory preparedness becomes appropriate. Aims and Objectives: In this research, we aim to evaluate individual's aerobic power with allometric equations through a simple mathematical formula. Materials and Methods: A total of 72 healthy youth boys with mean age (13.95 ± 1.84) years and weight (51.64 ± 13.15 kg) were divided into two groups of normal maturity (33 person) and non-normal (39 person) and participated in the maximal protocol of aerobics voluntarily. The practical capacity was measured directly by analyzer gas. Then, using regression analysis and harmonic graph of Bland Altman, we obtained the relationship between VO 2 max from the standard method (direct measurement) and estimated (design allometric equations). Results: Iranian-specific allometric equations (VO 2 max = 0.15 × lean body mass 0.8 , R = 0.73, SEE = 0.57) and (VO 2 max = 0.97 × body surface area 1.89 , R = 0.72, SEE = 0.58) were designed with greater validity and neutrality of maturity. Conclusions: We can with use of this allometric equations, the amount of youth boys' aerobic power, preparation and assessed without any sports test.

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“…And this was the only available study which investigated the effect of maturity on OUES of children. 10 Also Akkerman et al 16 in 2010 on healthy children of 7---17 years old showed a high correlation of R = 0.95 in both indices OUES and VO 2max . But significant difference in the OUES index when performing two patterns of standard exhaustive and submaximal physical labor was not found and this was found that OUES is affected by anthropometric variables and thus it was suggested that OUES must be corrected by the intervention factors of BSA or FFM.…”

Section: Introductionmentioning

confidence: 99%

The role of biological maturation intervention and anthropometric factors on cardiac reserve index (OUES) in Iranian teenage boys

Nazem

Sazvar

2015

Apunts. Medicina de l'Esport

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The development and organism change, especially changes in biological maturation process, is impressive on the physiological parameters in response to exercise. Hence, the new index oxygen uptake efficiency slope (OUES) role with biological maturity intervention and anthropometric factors of body weight, BSA and LBM which can measure the cardiorespiratory function in children maturity level normal and abnormal (early or late) with high health and safety is important. 72 healthy young males, with a mean age 13.95 ± 1.8 years and BMI 19.91 ± 3.4 kg/m 2 were separated into two groups of normal puberty (n = 33) and abnormal maturation (n = 39). After consent obtaining, their VO 2max was determined by maximal aerobic test via gas analyzer (VE, VO 2 and VCO 2 ). The new index OUES was also determined according to logarithmic relationship Baba. A high correlation was observed between VO 2max and OUES physiological index (R 2 = 0.90, SEE = 292). There was no significant difference in the index OUES with and without the intervention of weight, BSA and LBM between normal and abnormal maturation of boys (p > 0.05). Significant correlation between VO 2max and normalized OUES with anthropometric variables was obtained (R = 0.83, R = 0.87, R = 0.91, p = 0.00). OUES is influenced by weight, BSA and LBM. But the BSA role in the index of cardiac performance was more sensitive than the other two parameters. It appears that due to the lack of intervention maturation effect on this index, during the study of cardiorespiratory system physiological responses of children to exercise, regardless of the maturity the application of this index is possible. © 2015 Consell Català de l'Esport. Document downloaded from http://www.apunts.org, day 24/12/2015. This copy is for personal use. Any transmission of this document by any media or format is strictly prohibited. Document downloaded from http://www.apunts.org, day 13/01/2016. This copy is for personal use. Any transmission of this document by any media or format is strictly prohibited. 140 F. Nazem, A. Sazvar PALABRAS CLAVEMadurez; Antropometría; Gradiente de eficiencia de la captación de oxígeno (Oxygen Uptake Efficiency Slope (OUES)) Papel de los factores de maduración biológica y antropométricos en la tasa de reserva cardiaca (TRC) en adolescentes iraníesResumen Los cambios en el desarrollo, especialmente los cambios en el proceso de maduración biológica, pueden conllevar unas diferencias impresionantes en cuanto a los parámetros fisiológicos como respuesta al ejercicio. Por tanto, es importante el papel que representa el nuevo índice del gradiente de eficiencia del consumo de oxígeno (''oxygen uptake efficiency slope (OUES)'' porque incluye variables de maduración biológica, así como factores como el peso corporal antropométrico, el área de la superficie corporal (ASC) y la magra masa corporal (MMC). Por tanto, dicho índice puede medir, de modo seguro, la función cardiorespiratoria en niños con niveles de madurez normal o anormal (temprana o tardía), y aportar una información...

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Oxygen Uptake Efficiency Slope in Healthy Children

Cited by 45 publications

References 30 publications

The Influence of Maturation on the Oxygen Uptake Efficiency Slope

The Influence of Maturation on the Oxygen Uptake Efficiency Slope

Investigating the validity of allometrically designed equations to estimate VO2max in Iranian boys

The role of biological maturation intervention and anthropometric factors on cardiac reserve index (OUES) in Iranian teenage boys

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