S1 Data -

BackgroundDown syndrome is a genetic disorder that causes physical and cognitive challenges. Identifying the impact of sedentary behavior and physical activity on people with Down syndrome is crucial for early intervention. The purpose of this study is to compare physical activity and sedentary behavior among children with Down syndrome and typically developing children, as well as assess their relationship with quality of life.MethodsIn the cross-sectional study, 67 children between the ages of 6 and 12 were enrolled: 29 in the Down syndrome group and 38 in the typically developing group. Each child wore an ActiGraph wGT3X-BT for seven days. Accelerometer data and quality of life data were analysed.ResultsPhysical activity and sedentary behavior were not significantly different between the Down syndrome and typically developing groups (p ˃ .05). With large effect sizes (partial eta squares ranging from 0.21 to 0.59), typically developing children had a significantly better quality of life than children with Down syndrome. There was a weak positive correlation between moderate physical activity and school performance in children with Down syndrome. For typically developing children, there is a weak negative correlation between light physical activity and physical function, school function, and total paediatric quality of life scale scores.ConclusionsThis study indicates that children with Down syndrome have participated in more physical activities, resulting in a reduction in differences between them and typically developing children. Additionally, typically developing had higher quality of life than children with Down syndrome. For healthcare professionals and educators, these findings provide valuable insights into developing strategies to enhance physical activity for children with developmental disabilities.</div

STROBE statement—checklist of items that should be included in reports of <i>cross-sectional studies</i>.

STROBE statement—checklist of items that should be included in reports of cross-sectional studies.</p

Correlations between PedsQoL and physical activity, sedentary behaviour and step count for both groups.

Correlations between PedsQoL and physical activity, sedentary behaviour and step count for both groups.</p

Two-way MANOVA analysis of the QoL differences between children with DS and TD children.

Two-way MANOVA analysis of the QoL differences between children with DS and TD children.</p

Participant characteristics.

BackgroundDown syndrome is a genetic disorder that causes physical and cognitive challenges. Identifying the impact of sedentary behavior and physical activity on people with Down syndrome is crucial for early intervention. The purpose of this study is to compare physical activity and sedentary behavior among children with Down syndrome and typically developing children, as well as assess their relationship with quality of life.MethodsIn the cross-sectional study, 67 children between the ages of 6 and 12 were enrolled: 29 in the Down syndrome group and 38 in the typically developing group. Each child wore an ActiGraph wGT3X-BT for seven days. Accelerometer data and quality of life data were analysed.ResultsPhysical activity and sedentary behavior were not significantly different between the Down syndrome and typically developing groups (p ˃ .05). With large effect sizes (partial eta squares ranging from 0.21 to 0.59), typically developing children had a significantly better quality of life than children with Down syndrome. There was a weak positive correlation between moderate physical activity and school performance in children with Down syndrome. For typically developing children, there is a weak negative correlation between light physical activity and physical function, school function, and total paediatric quality of life scale scores.ConclusionsThis study indicates that children with Down syndrome have participated in more physical activities, resulting in a reduction in differences between them and typically developing children. Additionally, typically developing had higher quality of life than children with Down syndrome. For healthcare professionals and educators, these findings provide valuable insights into developing strategies to enhance physical activity for children with developmental disabilities.</div

Descriptive statistics for PA variables.

BackgroundDown syndrome is a genetic disorder that causes physical and cognitive challenges. Identifying the impact of sedentary behavior and physical activity on people with Down syndrome is crucial for early intervention. The purpose of this study is to compare physical activity and sedentary behavior among children with Down syndrome and typically developing children, as well as assess their relationship with quality of life.MethodsIn the cross-sectional study, 67 children between the ages of 6 and 12 were enrolled: 29 in the Down syndrome group and 38 in the typically developing group. Each child wore an ActiGraph wGT3X-BT for seven days. Accelerometer data and quality of life data were analysed.ResultsPhysical activity and sedentary behavior were not significantly different between the Down syndrome and typically developing groups (p ˃ .05). With large effect sizes (partial eta squares ranging from 0.21 to 0.59), typically developing children had a significantly better quality of life than children with Down syndrome. There was a weak positive correlation between moderate physical activity and school performance in children with Down syndrome. For typically developing children, there is a weak negative correlation between light physical activity and physical function, school function, and total paediatric quality of life scale scores.ConclusionsThis study indicates that children with Down syndrome have participated in more physical activities, resulting in a reduction in differences between them and typically developing children. Additionally, typically developing had higher quality of life than children with Down syndrome. For healthcare professionals and educators, these findings provide valuable insights into developing strategies to enhance physical activity for children with developmental disabilities.</div

Two-way MANCOVA for the main effect of group and gender and the interaction of group and gender on physical activity, sedentary behaviour and step count.

Two-way MANCOVA for the main effect of group and gender and the interaction of group and gender on physical activity, sedentary behaviour and step count.</p