日本7至12岁唐氏综合征患儿肥胖与久坐行为或日常身体活动之间的关联：一项横断面研究。
The association between obesity and sedentary behavior or daily physical activity among children with Down's syndrome aged 7-12 years in Japan: A cross-sectional study.
作者信息
Yamanaka Erika, Inayama Takayo, Ohkawara Kazunori, Okazaki Kanzo, Kita Ichiro
机构信息
Tokyo Metropolitan University, Japan.
The University of Nagano, Japan.
出版信息
Heliyon. 2020 Sep 14;6(9):e04861. doi: 10.1016/j.heliyon.2020.e04861. eCollection 2020 Sep.
BACKGROUND
An assessment of the adverse health effects of obesity in children with Down's syndrome (DS) is required to develop programs that facilitate the acquisition of healthy behaviors. Individuals with DS are often obese. These individuals must develop health related behaviors in childhood. For this reason, it is necessary to clarify the factors associated with obesity in children with DS.
AIMS
This study had two purposes. The first was to assess the obesity and to evaluate the sedentary behavior (SB) and physical activity of Japanese elementary school children with Down's syndrome. The second was to investigate the association between obesity and SB or moderate to vigorous physical activity (MVPA).
METHODS AND PROCEDURES
Ninety-three children (male/female: 51/42) with DS in elementary school grades 1 to 6 (aged 7-12 years) participated in this study in Japan. Physical characteristics were obtained from the questionnaire completed by their parents. The questionnaire provided information on regular school checkups. SB and MVPA were evaluated using a triaxial accelerometer.
RESULTS
Approximately 20% of the children with DS were obese. Nearly half of the children with DS achieved 60 min of MVPA. SB time was significantly longer in the upper grades (aged 11-12 years) than in the lower grades (aged 7-8 years). Comparing weekdays and weekend days, the middle (aged 9-10 years) and upper grades had significantly shorter MVPA times on weekend days. The frequency of obesity was significantly associated with shorter MVPA times in the lower grades and longer SB time in the middle grades.
CONCLUSIONS AND IMPLICATIONS
Children with DS may increase their SB time as their age group (grade category) increases. Increasing opportunities for MVPA during weekends may increase physical activity. The observed relationship between obesity and SB time or MVPA time may apply only to younger and middle grade children with DS. Further investigation is necessary to confirm these relationships.
背景
为制定促进健康行为养成的项目，需要评估唐氏综合征（DS）患儿肥胖对健康的不良影响。DS患者常患有肥胖症。这些个体必须在儿童期养成与健康相关的行为。因此，有必要明确DS患儿肥胖的相关因素。
目的
本研究有两个目的。一是评估日本小学唐氏综合征患儿的肥胖情况，并评价其久坐行为（SB）和身体活动情况。二是调查肥胖与SB或中度至剧烈身体活动（MVPA）之间的关联。
方法与步骤
日本93名1至6年级（7 - 12岁）的小学DS患儿（男/女：51/42）参与了本研究。身体特征信息通过其父母填写的问卷获得。问卷提供了常规学校体检的信息。使用三轴加速度计评估SB和MVPA。
结果
约20%的DS患儿肥胖。近一半的DS患儿达到了60分钟的MVPA。高年级（11 - 12岁）的SB时间显著长于低年级（7 - 8岁）。比较工作日和周末，中年级（9 - 10岁）和高年级在周末的MVPA时间显著缩短。肥胖频率与低年级较短的MVPA时间和中年级较长的SB时间显著相关。
结论与启示
DS患儿可能会随着年龄增长（年级升高）而增加SB时间。增加周末MVPA的机会可能会增加身体活动量。观察到的肥胖与SB时间或MVPA时间之间的关系可能仅适用于DS的低年级和中年级儿童。需要进一步调查以证实这些关系。
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