The HALO submaximal treadmill protocol provided a valid estimate of peak oxygen uptake in obese children, showing significant correlation with observed maximal values (r = 0.75, p = 0.001).
Cohort (n=21)
Randomized order
Does the HALO submaximal protocol provide a comparable estimate of peak oxygen uptake to validated maximal and submaximal protocols in obese children?
The HALO submaximal treadmill protocol provides a valid estimate of maximal cardiorespiratory fitness in obese children and youth.
Estimación del efecto: r = 0.75
valor p: p=0.001
Many limitations exist with completing cardiorespiratory fitness testing in obese children. The aim of this study was to determine if the new Healthy Active Living and Obesity Research Group's (HALO's) submaximal cardiorespiratory fitness testing protocol for obese children and youth provides a comparable estimate of peak oxygen uptake to that measured using validated maximal and submaximal, equation-based protocols in the obese pediatric population. A group of obese children (n = 21; all ≥95th body mass index percentile; aged 10-17 years) completed 3 exercise testing protocols. Testing was completed as part of an ongoing cohort study and 2 submaximal cardiorespiratory fitness tests were completed, in randomized order, during a second visit. Significant correlations were found between observed peak oxygen uptake (mL·min(-1)) and predicted peak oxygen uptake for both the HALO (r = 0.75, p = 0.001) and Nemeth (r = 0.66, p = 0.001) submaximal protocols. A similar correlation was found, after accounting for body mass, between measured and predicted HALO peak oxygen uptake (mL·kg(-1)·min(-1)) values (r = 0.54, p = 0.01). HALO predicted peak oxygen uptake values showed a significant correlation when plotted against the measured values (r = 0.99). A Bland-Altman analysis found agreement between the maximal and HALO submaximal protocols (mean bias = -201.75 mL·min(-1)). The significant relationships found between estimates of peak oxygen uptake from the HALO submaximal protocol and measures of peak oxygen uptake during maximal cardiorespiratory testing support the use of the HALO submaximal protocol as a valid measure to estimate maximal cardiorespiratory fitness within the obese pediatric population. Given the proof of principle goal of this study, future research in the obese, pediatric population is encouraged to confirm the generalizability of the protocol.
Breithaupt et al. (Sun,) conducted a cohort in Obesity (n=21). HALO submaximal cardiorespiratory fitness testing protocol vs. Validated maximal and submaximal (Nemeth) protocols was evaluated on Correlation between observed and predicted peak oxygen uptake (r = 0.75, p=0.001). The HALO submaximal treadmill protocol provided a valid estimate of peak oxygen uptake in obese children, showing significant correlation with observed maximal values (r = 0.75, p = 0.001).