Koinis-Mitchell Daphne, Kopel Sheryl J, Dunsiger Shira, McQuaid Elizabeth L, Miranda Luis Gonzalez, Mitchell Patricia, Vehse Nico, Jelalian Elissa
Bradley-Hasbro Research Center and the Department of Pediatrics, Rhode Island Hospital.
Warren Alpert Medical School of Brown University.
J Pediatr Psychol. 2021 Aug 19;46(8):970-979. doi: 10.1093/jpepsy/jsab023.
Asthma and obesity disproportionately affect urban minority children. Avoidance of physical activity contributes to obesity, and urban children with asthma are at risk for lower levels of physical activity. We examined associations between lung function and moderate to vigorous physical activity (MVPA) and moderators of this association in a diverse sample of children with asthma.
Urban children (N = 142) ages 7-9 with persistent asthma and their caregivers completed a study of asthma and physical activity. Longitudinal mixed effects models examining daily-level asthma and physical activity evaluated the association between asthma and MVPA, and the moderating effect of weight, and cultural/contextual factors on this association.
Average daily MVPA was below recommended guidelines. Differences in MVPA were found by racial/ethnic group (p = .04) and weight (p = .001). Poorer asthma status was associated with lower MVPA in Latino and Black participants (p's < .05), and in normal weight youth (p = .01). Body mass index (BMI) moderated the association between asthma and MVPA. Those with lower BMI had more optimal asthma status and higher MVPA levels, whereas associations attenuated for participants with higher BMI (p = .04). Caregivers' perceptions of neighborhood safety and fear of asthma were marginally associated with children's symptoms and MVPA: as perceptions of safety decreased and fear increased, associations between asthma and MVPA weakened (p's = .09 and .07, respectively).
Suboptimal asthma status is associated with less MVPA in urban children. Weight status and cultural/contextual factors play a role in the association and are worthy targets for future research and intervention.
哮喘和肥胖对城市少数民族儿童的影响尤为严重。缺乏体育活动会导致肥胖，而患有哮喘的城市儿童体育活动水平较低的风险较高。我们在一个多样化的哮喘儿童样本中，研究了肺功能与中度至剧烈体育活动（MVPA）之间的关联以及该关联的调节因素。
7至9岁患有持续性哮喘的城市儿童（N = 142）及其照顾者完成了一项关于哮喘和体育活动的研究。采用纵向混合效应模型，在每日水平上研究哮喘和体育活动，评估哮喘与MVPA之间的关联，以及体重、文化/背景因素对该关联的调节作用。
平均每日MVPA低于推荐指南。不同种族/族裔群体（p = 0.04）和体重（p = 0.001）的MVPA存在差异。在拉丁裔和黑人参与者（p值<0.05）以及正常体重的青少年（p = 0.01）中，哮喘状况较差与MVPA较低有关。体重指数（BMI）调节了哮喘与MVPA之间的关联。BMI较低的人哮喘状况更佳，MVPA水平更高，而BMI较高的参与者之间的关联减弱（p = 0.04）。照顾者对邻里安全的认知和对哮喘的恐惧与儿童的症状和MVPA略有关联：随着对安全的认知下降和恐惧增加，哮喘与MVPA之间的关联减弱（p值分别为0.09和0.07）。
城市儿童中，次优的哮喘状况与较少的MVPA有关。体重状况和文化/背景因素在这种关联中起作用，是未来研究和干预的重要目标。
