Center on Physical Activity & Health in Pediatric Disabilities, School of Kinesiology, University of Michigan, 1402 Washington Heights, Ann Arbor, MI 48109-2013, USA.
Phys Ther. 2011 Oct;91(10):1463-77. doi: 10.2522/ptj.20110061. Epub 2011 Aug 18.
People with Down syndrome (DS) display consistent patterns of physical inactivity. If these sedentary behaviors continue over extended periods of time, there will be negative health consequences.
The objective of this study was to investigate the physical activity and health-related outcomes of teaching children with DS to ride a 2-wheel bicycle.
This study was a randomized intervention in which the control group waited 1 year to receive the intervention.
This intervention study was conducted in a community setting.
The participants were children who were 8 to 15 years of age and who had been diagnosed with DS. Intervention The participants were randomly assigned to an experimental group (bicycle intervention) or a control group (no intervention).
Measurements were obtained in the month before the intervention (preintervention), at 7 weeks after the intervention, and at 12 months after the preintervention measurement for all participants.
The results indicated no group differences at the preintervention session. Fifty-six percent of the participants in the experimental group successfully learned to ride a 2-wheel bicycle during the 5-day intervention. Analysis showed that participants who learned to ride spent significantly less time in sedentary activity at 12 months after the preintervention measurement and more time in moderate to vigorous physical activity than participants in the control group. Body fat appeared to be positively influenced over time in participants who learned to ride.
It is unknown how frequently the children in the experimental group rode their bicycles after the intervention.
Most children who are 8 to 15 years of age and who have been diagnosed with DS can learn to ride a 2-wheel bicycle. Learning to ride can reduce time spent in sedentary activity and increase time spent in moderate to vigorous physical activity, which may influence the health and functioning of these children.
唐氏综合征（DS）患者表现出持续的身体活动不足。如果这些久坐行为持续很长时间，将会产生负面的健康后果。
本研究旨在探讨教授唐氏综合征儿童骑自行车对其身体活动和健康相关结果的影响。
这是一项随机干预研究，对照组等待 1 年接受干预。
本干预研究在社区环境中进行。
参与者为 8 至 15 岁且被诊断为 DS 的儿童。
参与者被随机分配到实验组（自行车干预）或对照组（无干预）。
所有参与者在干预前一个月（干预前）、干预后 7 周和干预前测量后 12 个月进行测量。
结果表明干预前两组无差异。实验组 56%的参与者在 5 天的干预中成功学会了骑两轮自行车。分析表明，学会骑自行车的参与者在干预前测量后 12 个月的久坐时间明显减少，而中高强度体力活动时间多于对照组。随着时间的推移，学会骑自行车的参与者的体脂似乎受到了积极影响。
不知道实验组的孩子在干预后多久骑一次自行车。
大多数 8 至 15 岁且被诊断为 DS 的儿童可以学会骑两轮自行车。学会骑自行车可以减少久坐时间，增加中高强度体力活动时间，这可能会影响这些儿童的健康和功能。
