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147
131. McMurray RG, Bangdiwala SI, Harrell JS, and Amorim LD. Adolescents with
metabolic syndrome have a history of low aerobic fitness and physical activity levels.
Dynamic Medicine 7: 1-6, 2008.
132. McMurray RG, Ring KB, Treuth MS, Welk GJ, Pate RR, Schmitz KH, Pickrel JL,
Gonzalez V, Almedia MJ, Young DR, and Sallis JF. Comparison of two approaches to
structured physical activity surveys for adolescents. Med Sci Sports Exerc 36: 2135-2143,
2004.
133. McNeely MJ, and Boyko EJ. Type 2 Diabetes Prevalence in Asian Americans:
Results of a national health survey Diabetes Care 27: 66-69, 2004.
134. McTiernan A. Mechanisms linking physical activity with cancer. Nat Rev Cancer 8:
205-211, 2008.
135. Metcalf BS, Hosking J, Jeffery AN, Voss LD, Henley W, and Wilkin TJ. Fatness
leads to inactivity, but inactivity does not lead to fatness: a longitudinal study in children
(EarlyBird 45). Arch Dis Child.
136. Monteiro CA, Moura EC, Conde WL, and Popkin BM. Socioeconomic status and
obesity in adult populations of developing countries: a review. Bull World Health Organ
82: 940-946, 2004.
137. Moore JB, Davis CL, Baxter SD, Lewis RD, and Yin Z. Physical Activity,
Metabolic Syndrome, and Overweight in Rural Youth. The Journal of Rural Health 24:
136-142, 2008.
138. Moran A, Jacobs DR, Jr., Steinberger J, Hong CP, Prineas R, Luepker R, and
Sinaiko AR. Insulin resistance during puberty: results from clamp studies in 357 children.
Diabetes 48: 2039-2044, 1999.
139. Morano M, Colella D, and Capranica L. Body image, perceived and actual physical
abilities in normal-weight and overweight boys involved in individual and team sports. J
Sports Sci 1-8, Epub ahead of print.
Object Description
| Title | The vicious cycle of inactivity, obesity, and metabolic health consequences in at-risk pediatric populations |
| Author | Hsu, Ya-Wen |
| Author email | ywxxbirdy@yahoo.com; yawenhsu@usc.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Preventive Medicine (Health Behavior) |
| School | Keck School of Medicine |
| Date defended/completed | 2011-03-09 |
| Date submitted | 2011 |
| Restricted until | Restricted until 26 Apr. 2012. |
| Date published | 2012-04-26 |
| Advisor (committee chair) |
Chou, Chih-Ping Spruijt-Metz, Donna |
| Advisor (committee member) |
Unger, Jennifer B. Azen, Stanley Paul Palinkas, Lawrence A. |
| Abstract | PURPOSE: This dissertation examined the associations between physical activity, sedentary behavior, overweight, and the metabolic syndrome (MetS) in at-risk pediatric populations in the United States and in China. Study 1 identified the independent influences of physical activity, sedentary behavior, and other weight-related correlates on overweight status in Chinese youth. Study 2 explored the influences of physical activity and sedentary behavior on MetS in US minority youth. Study 3 compared the longitudinal trends of physical activity and sedentary behavior between youth with and without MetS in a sample of US minority female youth.; METHODS: Participants were youth (ages 8-18 years) in the United States and in China. Study 1 used baseline data from of a longitudinal smoking prevention and health promotion study conducted in the 7 large cities in China for Chinese youth ages 11-18 years. Study 2 used baseline data from three related pediatric obesity studies that share a set of common methods and measures (US Latino and African American youth ages 8-18 years). Data for Study 3 are from a longitudinal, observation study for Latina and African American female youth ages 8-11 years at baseline.; RESULTS: In Study 1, Chinese youth were more likely to be overweight if they spent more time being sedentary, slept <7 hours/night, were male, were younger, participated more in vigorous physical activity, had higher levels of parental education, better self-perceived health status, a higher frequency of vegetable intake, and a lower frequency of sweet/fast food intake. In Study 2, lower levels of moderate-to-vigorous physical activity (by accelerometry) and higher levels of sedentary behavior (by 3-day physical activity recall) are associated with increased the metabolic risk independent of each other and body composition. In Study 3, a significant decline in MVPA and an increase in sedentary behavior were observed over one year. Sedentary behavior as measured by accelerometry increased 23.42 minutes/per quarterly visit, adding up to 93.68 minutes/per year more in youth with MetS than in those without.; CONCLUSION: Overweight-related correlates seem to play different roles in the Chinese culture than in Western cultures. Findings from this dissertation support a vicious cycle of increasing inactivity, obesity, and metabolic complications. These findings, coupled with longitudinal evidence of the effects of activity levels on obesity and MetS, suggests that physical activity and sedentary behavior could function as antecedents as well as consequences of overweight or MetS in youth. |
| Keyword | Chinese youth; metabolic syndrome; minority youth; obesity; physical activity; sedentary behavior |
| Geographic subject (country) | USA; China |
| Coverage date | 1970/2010 |
| 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-m3779 |
| Contributing entity | University of Southern California |
| Rights | Hsu, Ya-Wen |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | cisadmin@lib.usc.edu |
| Filename | etd-Hsu-4455 |
| Archival file | uscthesesreloadpub_Volume23/etd-Hsu-4455.pdf |
Description
| Title | Page 158 |
| Contributing entity | University of Southern California |
| Repository email | cisadmin@lib.usc.edu |
| Full text | 147 131. McMurray RG, Bangdiwala SI, Harrell JS, and Amorim LD. Adolescents with metabolic syndrome have a history of low aerobic fitness and physical activity levels. Dynamic Medicine 7: 1-6, 2008. 132. McMurray RG, Ring KB, Treuth MS, Welk GJ, Pate RR, Schmitz KH, Pickrel JL, Gonzalez V, Almedia MJ, Young DR, and Sallis JF. Comparison of two approaches to structured physical activity surveys for adolescents. Med Sci Sports Exerc 36: 2135-2143, 2004. 133. McNeely MJ, and Boyko EJ. Type 2 Diabetes Prevalence in Asian Americans: Results of a national health survey Diabetes Care 27: 66-69, 2004. 134. McTiernan A. Mechanisms linking physical activity with cancer. Nat Rev Cancer 8: 205-211, 2008. 135. Metcalf BS, Hosking J, Jeffery AN, Voss LD, Henley W, and Wilkin TJ. Fatness leads to inactivity, but inactivity does not lead to fatness: a longitudinal study in children (EarlyBird 45). Arch Dis Child. 136. Monteiro CA, Moura EC, Conde WL, and Popkin BM. Socioeconomic status and obesity in adult populations of developing countries: a review. Bull World Health Organ 82: 940-946, 2004. 137. Moore JB, Davis CL, Baxter SD, Lewis RD, and Yin Z. Physical Activity, Metabolic Syndrome, and Overweight in Rural Youth. The Journal of Rural Health 24: 136-142, 2008. 138. Moran A, Jacobs DR, Jr., Steinberger J, Hong CP, Prineas R, Luepker R, and Sinaiko AR. Insulin resistance during puberty: results from clamp studies in 357 children. Diabetes 48: 2039-2044, 1999. 139. Morano M, Colella D, and Capranica L. Body image, perceived and actual physical abilities in normal-weight and overweight boys involved in individual and team sports. J Sports Sci 1-8, Epub ahead of print. |
