Background Little is known about the physical activity patterns of Somali adolescents. This study compared time spent in moderate-to-vigorous physical activity (MVPA) and participation in specific physical activities among Somali, other Non-Hispanic black and white adolescents. Methods A subsample of 1,268 adolescents (mean age= 14.6) who completed surveys as part of the EAT 2010 (Eating and Activity in Teens) study was included in analyses. Gender-stratified linear and logistic regressions, controlling for body mass index and demographic characteristics, were conducted to estimate mean weekly hours of self-reported MVPA and mean weekly hours and prevalence of engagement in each of 26 physical activities assessed by ethnic/racial group. Results Somali girls had lower mean MVPA hours than their peers; however, no differences were found for Somali boys. Involvement in most activities was similar for Somali and other groups, but some differences were observed. For example, Somali youth were more likely to play soccer than their same-sex other black peers (boys: 52.4% vs. 20.4%; girls: 34.6% vs. 14.6%; p<.05). Somali girls also engaged in more hours per week of soccer than their black or white peers. Conclusions Activities for which Somali youth indicated higher involvement may be particularly relevant for culturally-tailored physical activity programming.
Objective Characteristics of the home and family have been associated with adolescents' BMI and physical and sedentary activity, but few studies have examined how these characteristics vary across ethnic/racial groups. This study explores whether recommendations for activity promotion are equally relevant to different adolescent populations. Design Participants included 2,374 adolescents and their parent(s), recruited through 20 public schools in Minneapolis/St. Paul, MN in 2009-2010. Ethnic/racial groups included African American, Asian (primarily Hmong), East African, Hispanic, Native American, White, and mixed/other race. Linear regression analysis modeled adolescents' BMI z-scores and physical and sedentary activity based on six measures of the family/home activity environment, adjusted for covariates. Interactions of ethnicity/race and family/home environment were tested. Results All six family/home environment measures varied significantly across ethnicity/race. Family/home variables were significantly associated with adolescent physical activity and TV viewing in the expected directions, and these relationships were consistent across ethnic/racial groups in two-thirds of the models. However, in one-third of the cases, these associations were modified by ethnicity/race. For example, home access to a greater number of media devices was significantly associated with more TV viewing (β=.40, p=.015) only among White youth. Conclusion Health promotion recommendations for adolescent physical activity are largely relevant across ethnic/racial groups. However, given differences found in the family/home environments of adolescents, cultural sensitivity is recommended in discussing these issues, and tailored recommendations may be appropriate for select groups or behaviors. Further mixed methods research is warranted to help identify key messages for specific groups.
Background: Although physical activity (PA) among adults is associated with health benefits, only one-third of young adults meet PA recommendations. Examining if the type of PA has an impact on individuals' psychological responses may impact future interventions and PA rates among young adults. Aims: This study examined affective and other psychological responses to a class of high intensity interval training (HIIT) or moderate intensity continuous training (MICT).Methods: Participants (n = 41) were active 18-25-year-old college students randomized to participate in HIIT or MICT. HIIT was higher intensity and included more breaks from PA relative to MICT. Both classes were 30-minutes that included a warm-up and cool down. Psychological factors included affect, enjoyment, and exercise-feeling. Results and Conclusions:Participants in the HIIT condition reported lower positive affect and higher physical exhaustion during PA than the MICT condition. However, there was no effect of group assignment on enjoyment, tranquility, positive engagement, and revitalization. This study provides some evidence that HIIT may result in lower levels of positive affect and more exhaustion during PA; however, HIIT does not appear to impact enjoyment. Future studies should examine affect in HIIT relative to MICT through the lens of dual-mode theory over a multi-week intervention. Additionally, HIIT is often discussed as requiring less time relative to traditional workouts while experiencing similar positive health benefits, so future studies should examine affect during HIIT vs. MICT in shorter classes.
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