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142
88. Hills AP, King NA, and Armstrong TP. The contribution of physical activity and
sedentary behaviours to the growth and development of children and adolescents:
implications for overweight and obesity. Sports Med 37: 533-545, 2007.
89. Holme I, Tonstad S, Sogaard AJ, Larsen PG, and Haheim LL. Leisure time physical
activity in middle age predicts the metabolic syndrome in old age: results of a 28-year
follow-up of men in the Oslo study. BMC Public Health 7: 154, 2007.
90. Howley ET. Type of activity: resistance, aerobic and leisure versus occupational
physical activity. Med Sci Sports Exerc 33: S364-369; discussion S419-320, 2001.
91. Hsu Y-W, Belcher BR, Ventura EE, Byrd-Williams CE, Weigensberg MJ, Davis J,
McClain A, Goran MI, and Spruijt-Metz D. Physical Activity, Sedentary Behavior, and
the Metabolic Syndrome in Minority Youth. Med Sci Sports Exerc Revise and Resubmit.
92. Hsu Y-W, Chou C-P, Nguyen-Rodriguez ST, McClain AD, Belcher BR, and
Spruijt-Metz D. Influences of Social Support, Perceived Barriers, and Negative Meanings
of Physical Activity on Physical Activity in Middle School Students. Journal of Physical
Activity & Health 8: 210-219, 2011.
93. Hunt KJ, Williams K, Hazuda HP, Stern MP, and Haffner SM. The metabolic
syndrome and the impact of diabetes on coronary heart disease mortality in women and
men: the San Antonio Heart Study. Ann Epidemiol 17: 870-877, 2007.
94. Iwata F, Hara M, Okada T, Harada K, and Li S. Body fat ratios in urban Chinese
children. Pediatr Int 45: 190-192, 2003.
95. Janssen I, Craig WM, Boyce WF, and Pickett W. Associations between overweight
and obesity with bullying behaviors in school-aged children. Pediatrics 113: 1187-1194,
2004.
96. Janz KF. Physical activity in epidemiology: moving from questionnaire to objective
measurement. Br J Sports Med 40: 191-192, 2006.
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 153 |
| Contributing entity | University of Southern California |
| Repository email | cisadmin@lib.usc.edu |
| Full text | 142 88. Hills AP, King NA, and Armstrong TP. The contribution of physical activity and sedentary behaviours to the growth and development of children and adolescents: implications for overweight and obesity. Sports Med 37: 533-545, 2007. 89. Holme I, Tonstad S, Sogaard AJ, Larsen PG, and Haheim LL. Leisure time physical activity in middle age predicts the metabolic syndrome in old age: results of a 28-year follow-up of men in the Oslo study. BMC Public Health 7: 154, 2007. 90. Howley ET. Type of activity: resistance, aerobic and leisure versus occupational physical activity. Med Sci Sports Exerc 33: S364-369; discussion S419-320, 2001. 91. Hsu Y-W, Belcher BR, Ventura EE, Byrd-Williams CE, Weigensberg MJ, Davis J, McClain A, Goran MI, and Spruijt-Metz D. Physical Activity, Sedentary Behavior, and the Metabolic Syndrome in Minority Youth. Med Sci Sports Exerc Revise and Resubmit. 92. Hsu Y-W, Chou C-P, Nguyen-Rodriguez ST, McClain AD, Belcher BR, and Spruijt-Metz D. Influences of Social Support, Perceived Barriers, and Negative Meanings of Physical Activity on Physical Activity in Middle School Students. Journal of Physical Activity & Health 8: 210-219, 2011. 93. Hunt KJ, Williams K, Hazuda HP, Stern MP, and Haffner SM. The metabolic syndrome and the impact of diabetes on coronary heart disease mortality in women and men: the San Antonio Heart Study. Ann Epidemiol 17: 870-877, 2007. 94. Iwata F, Hara M, Okada T, Harada K, and Li S. Body fat ratios in urban Chinese children. Pediatr Int 45: 190-192, 2003. 95. Janssen I, Craig WM, Boyce WF, and Pickett W. Associations between overweight and obesity with bullying behaviors in school-aged children. Pediatrics 113: 1187-1194, 2004. 96. Janz KF. Physical activity in epidemiology: moving from questionnaire to objective measurement. Br J Sports Med 40: 191-192, 2006. |
