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Oxygen uptake efficiency slope during exercise in adults with Down syndrome

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Journal of Applied Research in Intellectual Disabilities

Published online on

Abstract

--- - |2+ Background Persons with Down syndrome (DS) have low aerobic exercise capacity. The present authors sought to compare the oxygen uptake efficiency slope (OUES) between adults with and without DS performing graded exercise testing (GXT) and to investigate its relationship with peak oxygen uptake (VO2peak) in both groups of participants. Method Twenty‐three participants with DS and 24 non‐disabled controls performed GXT with VO2 measurements. OUES was calculated from data of the first 75%, 90% and 100% GXT time. Multiple linear regression analyses were computed to explore associations between the independent (OUES and DS) and the dependent variables (VO2peak). Results VO2peak, GXT time and OUES were lower in participants with DS (p < .05). OUES and DS explained 69.3% of the variance in VO2peak. Conclusions Our findings show that OUES values are lower in persons with DS. Additionally, it was shown that OUES has predictive value for VO2peak estimations in DS. - Journal of Applied Research in Intellectual Disabilities, Volume 31, Issue 5, Page 897-904, September 2018.