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MARGINALIZATION IN ACCULTURATION IS RELATED TO OBJECTIVELY MEASURED PHYSICAL ACTIVITY IN LATINA ADOLESCENTS by Peisheng Shi
A Thesis Presented to the FACULTY OF THE USC GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE (BIOSTATISTICS) December 2012
Copyright 2012 Peisheng Shi
Object Description
| Title | Marginalization in acculturation is related to objectively measured physical activity in Latina adolecents |
| Author | Shi, Peisheng |
| Author email | peishens@usc.edu;jinglingsps@hotmail.com |
| Degree | Master of Science |
| Document type | Thesis |
| Degree program | Biostatistics |
| School | Keck School of Medicine |
| Date defended/completed | 2012-05-08 |
| Date submitted | 2012-06-04 |
| Date approved | 2012-06-05 |
| Restricted until | 2012-06-05 |
| Date published | 2012-06-05 |
| Advisor (committee chair) | Spruijt-Metz, Donna |
| Advisor (committee member) |
Azen, Stanley Chou, Chih-Ping |
| Abstract | Purpose: Although physical activity (PA) is protective against obesity, diabetes, and several other diseases, a profound decline in PA occurs during puberty. Previous studies have shown that this pubertal decline in PA is particularly steep in Latina females. Latina females are at high risk for obesity, pre-diabetes, and diabetes type 2. Therefore, this pubertal decline in PA is detrimental to their current and future health. Research on psychosocial correlates of PA in this understudied, high-risk population is needed. ❧ Methods: Participants were 95 Latina females, with mean age of 12.1 and mean BMI percentile of 87.0%. Physical activity was measured objectively by accelerometry and subjectively by 3- Day physical activity recall (3DPAR). Measures also included body fat by air plethysmography, motivation for physical activity, and acculturation status. Regression models were used to evaluate the associations between PA and psychosocial measures, correcting for age and percent of body fat. ❧ Results: Participants accrued an average of 31.4 minutes of moderate to vigorous physical activity (MVPA) per day as measured by accelerometry. Girls who reported higher marginalization accrued significantly more accelerometry measured MVPA per day (P <0.0001). Girls who reported higher identified regulation accrued significantly more self reported MVPA per day (P = 0.04). ❧ Conclusions: Higher marginalization was related to higher objectively measured MVPA. Latina females who report higher marginalization may be less affected by cultural stereotypes of active females, and less influenced by the culture-specific barriers to PA that females continue to experience. Higher identified regulation was related to higher MVPA as measured by 3DPAR. Given Latina girls collectivist cultural background, opinions and information received from trusted authorities might influence behavior more than intrinsic, personal values. Interventions may need to take culture-specific factors into account and include family and peers social support. |
| Keyword | physical activity; acculturation |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m |
| Rights | Shi, Peisheng |
| Access conditions | The author retains rights to his/her dissertation, thesis or other graduate work according to U.S. copyright law. Electronic access is being provided by the USC Libraries in agreement with the author, as the original true and official version of the work, but does not grant the reader permission to use the work if the desired use is covered by copyright. It is the author, as rights holder, who must provide use permission if such use is covered by copyright. The original signature page accompanying the original submission of the work to the USC Libraries is retained by the USC Libraries and a copy of it may be obtained by authorized requesters contacting the repository e-mail address given. |
| Repository name | University of Southern California Digital Library |
| Repository address | USC Digital Library, University of Southern California, University Park Campus MC 7002, 106 University Village, Los Angeles, California 90089-7002, USA |
| Repository email | cisadmin@usc.edu |
| Archival file | uscthesesreloadpub_Volume4/etd-ShiPeishen-877.pdf |
Description
| Title | Page 1 |
| Full text | MARGINALIZATION IN ACCULTURATION IS RELATED TO OBJECTIVELY MEASURED PHYSICAL ACTIVITY IN LATINA ADOLESCENTS by Peisheng Shi A Thesis Presented to the FACULTY OF THE USC GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE (BIOSTATISTICS) December 2012 Copyright 2012 Peisheng Shi |
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