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203. Treuth MS, Schmitz K, Catellier DJ, McMurray RG, Murray DM, Almeida MJ,
Going S, Norman JE, and Pate R. Defining accelerometer thresholds for activity
intensities in adolescent girls. Med Sci Sports Exerc 36: 1259-1266, 2004.
204. Troiano RP, ., Berrigan D, Dodd KW, Masse LC, Tilert T, and McDowell M.
Physical activity in the United States measured by accelerometer. Med Sci Sports Exerc
40: 181-188, 2008.
205. Trost SG, Kerr LM, Ward DS, and Pate RR. Physical activity and determinants of
physical activity in obese and non-obese children. Int J Obes Relat Metab Disord 25:
822-829, 2001.
206. Trost SG, Pate RR, Sallis JF, Freedson PS, Taylor WC, Dowda M, and Sirard J. Age
and gender differences in objectively measured physical activity in youth. Med Sci Sports
Exerc 34: 350-355, 2002.
207. Tudor-Locke C, Ainsworth B, Adair L, Du S, and Popkin B. Physical activity and
inactivity in Chinese school-aged youth: the China Health and Nutrition Survey. Int J
Obes (Lond) 27: 1093-1099, 2003.
208. U.S. Department of Health and Human Services. Physical Activity Guidelines
Advisory Committee Report. 2008.
209. US Department of Health and Huaman Services. 2008 Physical Activity Guidelines
for Americans. 2008.
210. Ventura E, Davis J, Byrd-Williams C, Alexander K, McClain A, Lane CJ,
Spruijt-Metz D, Weigensberg M, and Goran M. Reduction in risk factors for type 2
diabetes mellitus in response to a low-sugar, high-fiber dietary intervention in overweight
Latino adolescents. Arch Pediatr Adolesc Med 163: 320-327, 2009.
211. Ventura EE, Lane CJ, Weigensberg MJ, Toledo-Corral CM, Davis JN, and Goran
MI. Persistence of the metabolic syndrome over 3 annual visits in overweight Hispanic
children: association with progressive risk for type 2 diabetes. J Pediatr 155: 535-541,
2009.
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 166 |
| Contributing entity | University of Southern California |
| Repository email | cisadmin@lib.usc.edu |
| Full text | 155 203. Treuth MS, Schmitz K, Catellier DJ, McMurray RG, Murray DM, Almeida MJ, Going S, Norman JE, and Pate R. Defining accelerometer thresholds for activity intensities in adolescent girls. Med Sci Sports Exerc 36: 1259-1266, 2004. 204. Troiano RP, ., Berrigan D, Dodd KW, Masse LC, Tilert T, and McDowell M. Physical activity in the United States measured by accelerometer. Med Sci Sports Exerc 40: 181-188, 2008. 205. Trost SG, Kerr LM, Ward DS, and Pate RR. Physical activity and determinants of physical activity in obese and non-obese children. Int J Obes Relat Metab Disord 25: 822-829, 2001. 206. Trost SG, Pate RR, Sallis JF, Freedson PS, Taylor WC, Dowda M, and Sirard J. Age and gender differences in objectively measured physical activity in youth. Med Sci Sports Exerc 34: 350-355, 2002. 207. Tudor-Locke C, Ainsworth B, Adair L, Du S, and Popkin B. Physical activity and inactivity in Chinese school-aged youth: the China Health and Nutrition Survey. Int J Obes (Lond) 27: 1093-1099, 2003. 208. U.S. Department of Health and Human Services. Physical Activity Guidelines Advisory Committee Report. 2008. 209. US Department of Health and Huaman Services. 2008 Physical Activity Guidelines for Americans. 2008. 210. Ventura E, Davis J, Byrd-Williams C, Alexander K, McClain A, Lane CJ, Spruijt-Metz D, Weigensberg M, and Goran M. Reduction in risk factors for type 2 diabetes mellitus in response to a low-sugar, high-fiber dietary intervention in overweight Latino adolescents. Arch Pediatr Adolesc Med 163: 320-327, 2009. 211. Ventura EE, Lane CJ, Weigensberg MJ, Toledo-Corral CM, Davis JN, and Goran MI. Persistence of the metabolic syndrome over 3 annual visits in overweight Hispanic children: association with progressive risk for type 2 diabetes. J Pediatr 155: 535-541, 2009. |
