Key result
Higher leisure time physical activity levels (r = 0.56) and lower body mass index (r = -0.49) were independently associated with better cardiorespiratory fitness in young adults with Down syndrome.
Cross-Sectional (n=30)
Effect estimate: r = 0.56, β = 1.488 for LTPA; r = -0.49, β = -2.561 for BMI
p-value: p=0.011 for LTPA; 0.054 for BMI
Higher leisure time physical activity and lower BMI are independently associated with better cardiorespiratory fitness in young adults with Down syndrome, though physical activity and body composition appear unrelated.
These cross-sectional associations identify potential modifiable targets in Down syndrome; prospective trials needed before guiding practice.
BACKGROUND: Persons with Down syndrome (DS) typically possess low cardiorespiratory fitness (CRF), engage in low levels of physical activity (PA), and display elevated obesity levels, but the association between these variables is not clear in persons with DS. METHOD: We investigated the relationships among measures of CRF, PA, and body composition in 30 young adults with DS (age: 21.3 5.5 years) using a cross-sectional study design. RESULTS: Male participants presented on average with a BMI of 32.9 10.0 kg/m 2 , a percent body fat of 22.2 13.0%, and a six-minute walk distance (6MWD) of 411.7 66.3 m. Female participants presented on average with a BMI of 31.6 13.5 kg/m 2 , a percent body fat of 26.7 15.1%, and a six-minute walk distance (6MWD) of 360.4 91.2 m. 6MWD shared a positive relationship with leisure time physical activity levels (r = 0.56, = 1.488) and a negative relationship with body mass index (BMI; r = -0.49, = -2.561). No relationship between body composition and PA was found. CONCLUSIONS: It seems that higher PA levels and lower BMI relate to better CRF in young adults with DS. Physical activity and body composition appear to be unrelated in persons with DS.
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Ringenbach et al. (2017) conducted a cross-sectional in Down syndrome (n=30). Leisure time physical activity and body mass index was evaluated on Cardiorespiratory fitness (measured by 6-minute walk distance) (r = 0.56, β = 1.488 for LTPA; r = -0.49, β = -2.561 for BMI, p=0.011 for LTPA; 0.054 for BMI). Higher leisure time physical activity levels (r = 0.56) and lower body mass index (r = -0.49) were independently associated with better cardiorespiratory fitness in young adults with Down syndrome.
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