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- All Subjects: Cognition
- All Subjects: Navajo Adolescents
- Creators: Amazeen, Eric
- Resource Type: Text
Native American populations have higher obesity and diabetes rates overall in the U.S. Percentages of obesity among Native American children were 11-25% higher than the national average. Among Navajo, cultural lifestyles changes have led to less physical activity and obesity problems with youth more disassociated from traditional Navajo living, culture, beliefs, language and religion. They were at highest risk for Type II diabetes among ethnic groups due to less physically activity, increased weight gain and obesity.
This study had dual purposes: Part one of this study was to examined the perceptions of physical activity, physical education and living healthy lifestyles of Navajo adolescents, physical educators, a Navajo culture teacher, a Diné studies teacher and a community member. Part two of this study examined the physical activity patterns of Navajo adolescent students. To gain their perspectives, eight Navajo students (9-12 grades), two physical educators, two classroom teachers and one community member were recruited and interviewed individually for 60-minutes. Secondly, pedometers were used to assess the students’ physical activity levels during the school day and 24-hour increments.
Results of the part one study indicated important aspects of physical activity by Navajo adolescents, physical education teachers, classroom teachers and a community member were cultural identity, family involvement, and structure of family/extended family. Navajo respondents participated in traditional form of running in the morning, a practice performed by parents and/or extended family. Physical activity was described as active involvement of the body, movement, physical fitness, and sport related interests. Stakeholders described physical activity and healthy living as culturally driven beliefs and learning based on Navajo way of life.
Findings of part two study indicated that boys were significantly more physically active on weekday than girls t(32)=2.04, p=<.05. Weekday step counts for boys indicated (M=11,078, SD= 4,399) and for girls (M=7,567, SD=5,613). Girls were significantly more active on weekend t(27)=2.30,p=.03. Weekend step counts indicated boys and girls accumulated (M=6493, SD=5650) and (M=7589, SD=5614) steps. Physical education step counts showed minimal differences between boys (M=2203, SD=918) and girls (M=1939, SD=889) step counts. Overall results indicate that Navajo adolescents did not meet daily physical activity recommendations.
The relevance of depression in the clinical realm is well known, as it is one of the most common mental disorders in the United States. Clinical depression is the leading cause of disease for women worldwide. The sex difference in depression and anxiety has guided the research of not just recent studies but older studies as well, supporting the theory that gonadal hormones are associated with the mechanisms of emotional cognition. The scientific literature points towards a clear correlative relationship between gonadal hormones, especially estrogens, and emotion regulation. This thesis investigates the neural pathways that have been indicated to regulate mood and anxiety. Currently, the research points to the hypothalamic-pituitary-adrenal axis, which regulates the stress response through its ultimate secretion of cortisol through the adrenal cortex, and its modulated response when exposed to higher levels of estrogen. Another mechanism that has been investigated is the interaction of estrogen and the serotonergic system, which is noteworthy because the serotonergic system is known for its importance in mood regulation. However, it is important to note that the research seeking to determine the neurobiological underpinnings of estrogen and the serotonergic system is not expansive. Future research should focus on determining the direct relationship between cortisol hypersecretion and estrogens, the specific neurobiological effects of serotonergic receptor subtypes on the antidepressant actions of estrogens, and the simultaneous effects of the stress and serotonergic systems on depressive symptoms.