Racial Discrimination, Sedentary Time, and Physical Activity in African Americans: Quantitative Study Combining Ecological Momentary Assessment and Accelerometers.
Racial Discrimination, Sedentary Time, and Physical Activity in African Americans: Quantitative Study Combining Ecological Momentary Assessment and Accelerometers.
复制标题
DOI：
10.2196/25687
复制
发表时间：
2021-06-07
影响因子：
2.2
通讯作者：
Vlahov D
中科院分区：
文献类型：
--
作者：
Nam S;Jeon S;Ash G;Whittemore R;Vlahov D
越来越多的研究表明，暴露在社会压力下，例如被认为是种族歧视，可能导致健康状况不佳、健康行为和健康差异。增加体育活动（PA）可以缓冲种族歧视造成的社会压力的影响。然而，到目前为止，关于种族歧视和PA之间关系的数据是混杂的。部分原因是，感知到的种族歧视对PA的影响主要是在横断面研究中进行的，这些研究捕获了与个人当前PA结果相关的感知到的种族歧视的回顾性测量。非裔美国人实时感知的种族歧视与PA之间的关系尚不清楚。本研究的目的是研究人口统计学、人体测量学、临床和心理因素与终生种族歧视之间的关系，并研究通过生态瞬时评估（EMA）和加速度计测量的健康非裔美国人每日实时种族歧视与PA结果（总能量消耗、久坐时间和中度至剧烈PA模式）之间的人际关系。本初步研究采用密集、观察性、病例交叉设计，从社区招募非裔美国人（n=12）。在参与者完成基线调查后，他们被要求佩戴加速度计7天来测量他们的PA水平。EMA每天发送给参与者5次，持续7天，以评估每天的实时种族歧视。采用多水平模型研究了日常种族歧视在人际关系中的关系。ema报告的每日种族歧视越多，年龄越小（r=0.75； P= 0.02）。每日ema报告的微攻击行为与抑郁症状（r=0.66； P= 0.05）、过去的种族相关事件（r=0.82； P= 0.004）和终生歧视（r=0.78； P= 0.01）相关。在人体内分析中，种族歧视和久坐时间的日水平关联是显著的（β= 0.30, SE 0.14； P=.03），这表明当参与者报告比平时更多的种族歧视时，观察到更多的久坐时间。种族歧视的人际关联(β=−。30, se 0.28；P= 0.29)或微侵略(β=−。34, se 0.36；P=.34)与总能量消耗之间的关系具有启发性，但不具有结论性。同时使用EMA和加速度计是实时检测种族歧视与PA关系的可行方法。在个人层面审查日常过程有可能阐明种族歧视可能对健康和健康行为产生的机制，并指导制定个性化干预措施，以增加少数民族的PA。未来的研究将采用精确的健康方法，包括人与人之间和人与人之间的联系，以进一步阐明种族歧视和PA的影响。rr2 - 10.1002 / nur.22068
A growing number of studies indicate that exposure to social stress, such as perceived racial discrimination, may contribute to poor health, health behaviors, and health disparities. Increased physical activity (PA) may buffer the impact of social stress resulting from racial discrimination. However, to date, data on the relationship between racial discrimination and PA have been mixed. Part of the reason is that the effect of perceived racial discrimination on PA has primarily been examined in cross-sectional studies that captured retrospective measures of perceived racial discrimination associated with individuals’ current PA outcomes. The association between real-time perceived racial discrimination and PA among African Americans remains unclear. The purpose of this study is to examine the relationship among demographic, anthropometric and clinical, and psychological factors with lifetime racial discrimination and examine the within- and between-person associations between daily real-time racial discrimination and PA outcomes (total energy expenditure, sedentary time, and moderate-to-vigorous PA patterns) measured by ecological momentary assessment (EMA) and accelerometers in healthy African Americans. This pilot study used an intensive, observational, case-crossover design of African Americans (n=12) recruited from the community. After participants completed baseline surveys, they were asked to wear an accelerometer for 7 days to measure their PA levels. EMA was sent to participants 5 times per day for 7 days to assess daily real-time racial discrimination. Multilevel models were used to examine the within- and between-person associations of daily racial discrimination on PA. More EMA-reported daily racial discrimination was associated with younger age (r=0.75; P=.02). Daily EMA-reported microaggression was associated with depressive symptoms (r=0.66; P=.05), past race-related events (r=0.82; P=.004), and lifetime discrimination (r=0.78; P=.01). In the within-person analyses, the day-level association of racial discrimination and sedentary time was significant (β=.30, SE 0.14; P=.03), indicating that on occasions when participants reported more racial discrimination than usual, more sedentary time was observed. Between-person associations of racial discrimination (β=−.30, SE 0.28; P=.29) or microaggression (β=−.34, SE 0.36; P=.34) with total energy expenditure were suggestive but inconclusive. Concurrent use of EMA and accelerometers is a feasible method to examine the relationship between racial discrimination and PA in real time. Examining daily processes at the within-person level has the potential to elucidate the mechanisms of which racial discrimination may have on health and health behaviors and to guide the development of personalized interventions for increasing PA in racial ethnic minorities. Future studies with a precision health approach, incorporating within- and between-person associations, are warranted to further elucidate the effects of racial discrimination and PA. RR2-10.1002/nur.22068
登录
查看更多内容
影响因子：
2.2
作者：
Dunton GF;Liao Y;Dzubur E;Leventhal AM;Huh J;Gruenewald T;Margolin G;Koprowski C;Tate E;Intille S
通讯作者：
Intille S
影响因子：
5.1
作者：
Borrell, Luisa N.;Roux, Ana V. Diez;Jacobs, David R., Jr.;Shea, Steven;Jackson, Sharon A.;Shrager, Sandi;Blumenthal, Roger S.
通讯作者：
Blumenthal, Roger S.
影响因子：
8.2
作者：
Dickerson SS;Gable SL;Irwin MR;Aziz N;Kemeny ME
通讯作者：
Kemeny ME
影响因子：
3.8
作者：
Burg, Matthew M.;Schwartz, Joseph E.;Davidson, Karina W.
通讯作者：
Davidson, Karina W.
影响因子：
5.4
作者：
Laugero, Kevin D.;Falcon, Luis M.;Tucker, Katherine L.
通讯作者：
Tucker, Katherine L.