An Assessment of Obesity Through Lifestyle Self-monitoring and Cardiorespiratory Fitness

<p>This dissertation focuses on managing and understanding obesity. Three manuscripts were written addressing this topic. First, a meta-analysis was performed assessing the joint association between cardiorespiratory fitness and excessive body weight compared to mortality. After searching two databases and applying inclusion and exclusion criteria, 9 articles were included in the analysis. Individuals who are fat and also fit had the same risk of mortality (Hazard ratio and 95% confidence intervals, 1.12, 0.97-1.29) as normal weight and fit individuals. Furthermore, unfit individuals, regardless if they were normal weight (2.01, 1.63-2.48) or fat (2.09, 1.71-2.54), had twice the risk of death compared to normal weight and fit individuals. Second, the rationale, design, intervention and outcome measures of a randomized controlled trial were discussed. Third, data from the randomized controlled trial were analyzed to assess electronic (i.e. SenseWear Armband) lifestyle self-monitoring (i.e. physical activity and dietary intake) and its relation to weight reduction. After the 9 month intervention, participants were categorized into self-monitoring groups (i.e. low, moderate and high) based on adherence to lifestyle self-monitoring during the intervention. Weight loss outcomes were then compared between groups. Participants who self-monitored at high levels lost significantly more weight (-9.0, 95% CI, -5.2 - -12.8%) than participants who self-monitored at moderate (-4.5, -8.0 - -1.1%) and low levels (0.0, -1.4 - 1.5%). For clinically significant (i.e. > 5%) weight loss, participants wore the electronic device on average 13 hours and 55 minutes per day, 80% of the time (i.e. 178 of 222 days) and tracked food consumption 47% of the time (i.e. 104 of 222 days) . To help reduce obesity levels health care professionals and scientists should promote high levels of lifestyle self-monitoring. Furthermore, more focus should be place on attaining and maintaining habitual physical activity and less on weight loss for mortality risk reduction.</p>

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Campus Access Dissertation

Discipline thesis:degree_discipline

Exercise Science

Year

2011

Author dc:creator

• Barry, Vaughn Wesley

Contributors dc:contributor

• Steven N Blair

• Exercise Science
• Kinesiology
• Life Sciences
• Cardiorespiratory
• fit/fat
• Fitness
• meta-analysis
• Obesity
• Self-monitoring

Statement dc:rights

• © 2011, Vaughn Wesley Barry

Repository record dc:identifier

https://scholarcommons.sc.edu/etd/1194

OAI identifier oai:identifier

oai:scholarcommons.sc.edu:etd-2195