Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 7 of 7

Full-Text Articles in Entire DC Network

Girls’ Dairy Intake, Energy Intake, And Weight Status, Laura M. Fiorito, Alison K. Ventura, Diane C. Mitchell, Helen Smiciklas-Wright, Leann L. Birch Nov 2006

Girls’ Dairy Intake, Energy Intake, And Weight Status, Laura M. Fiorito, Alison K. Ventura, Diane C. Mitchell, Helen Smiciklas-Wright, Leann L. Birch

Kinesiology and Public Health

We explored the relationships among girls’ weight status, dairy servings, and total energy intake. The hypothesis that consuming dairy could reduce risk for overweight was evaluated by comparing energy intake and weight status of girls who met or consumed less than the recommended three servings of dairy per day. Participants included 172 11-year-old non-Hispanic white girls, assessed cross-sectionally. Intakes of dairy, calcium, and energy were measured using three 24-hour recalls. Body mass index and body fat measures from dual-energy x-ray absorptiometry were obtained. Because preliminary analyses suggested systematic underreporting of energy intake, the relationships among dairy servings and measures of …


Television Viewing And Long-Term Weight Maintenance: Results From The Natinoal Weight Control Registry, Douglas A. Raynor, Suzanne Phelan, James O. Hill, Rena R. Wing Oct 2006

Television Viewing And Long-Term Weight Maintenance: Results From The Natinoal Weight Control Registry, Douglas A. Raynor, Suzanne Phelan, James O. Hill, Rena R. Wing

Kinesiology and Public Health

Objective: To examine the role of television (TV) viewing in long-term maintenance of weight loss.
Research Methods and Procedures: All subjects (N = 1422) were enrolled in the National Weight Control Registry (NWCR), a national sample of adults who have maintained a minimum weight loss of 13.6 kg for at least 1 year. Participants self-reported the average number of hours of weekly TV viewing at entry into the NWCR and at a 1-year follow-up. Cross-sectional and prospective analyses were performed to determine the frequency of TV viewing and the extent to which TV viewing was independently associated with weight regain …


Changes In Ventilatory Threshold At High Altitude: Effect Of Antioxidants, Andrew W. Subudi, Kevin A. Jacobs, Todd A. Hagobian, Jill A. Fattor, Stephen R. Muza, Charles S. Fulco, Allen Cymerman, Anne L. Friedlander Aug 2006

Changes In Ventilatory Threshold At High Altitude: Effect Of Antioxidants, Andrew W. Subudi, Kevin A. Jacobs, Todd A. Hagobian, Jill A. Fattor, Stephen R. Muza, Charles S. Fulco, Allen Cymerman, Anne L. Friedlander

Kinesiology and Public Health

Purpose: To investigate the effects of prolonged hypoxia and antioxidant supplementation on ventilatory threshold (VT) during high-altitude (HA) exposure (4300 m).
Methods: Sixteen physically fit males (25 ± 5 yr; 77.8 ± 8.5 kg) performed an incremental test to maximal exertion on a cycle ergometer at sea level (SL). Subjects were then matched on VO2peak, ventilatory chemosensitivity, and body mass and assigned to either a placebo (PL) or antioxidant (AO) supplement group in a randomized, double-blind manner. PL or AO (12 mg of β-carotene, 180 mg of α-tocopherol acetate, 500 mg of ascorbic acid, 100 μg of selenium, and 30 …


Acculturation And Breast Density In Foreign-Born, U.S. Chinese Women, Marilyn Tseng, Celia Byrne, Kathryn A. Evers, W. Thomas London, Mary B. Daly Jul 2006

Acculturation And Breast Density In Foreign-Born, U.S. Chinese Women, Marilyn Tseng, Celia Byrne, Kathryn A. Evers, W. Thomas London, Mary B. Daly

Kinesiology and Public Health

The role of acculturation in the breast cancer risk increase among U.S. Chinese women is unclear. We examined the association between acculturation and breast density in a sample of foreign-born, U.S. Chinese women and examined factors that may explain such an association. Between January 2002 and May 2003, 212 Chinese women were recruited from Philadelphia region screening programs. Cranial-caudal mammographic images were classified into one of four categories ranging from ‘‘entirely fatty’’ to ‘‘extremely dense.’’ Questionnaires assessed information on sociodemographic, cultural, reproductive, and lifestyle factors. An index of acculturation was created based on self-reported English proficiency and within-and cross-ethnicity social …


Are The Eating And Exercise Habits Of Successful Weigh Losers Changing?, Suzanne Phelan, Holly R. Wyatt, James O. Hill, Rena R. Wing Apr 2006

Are The Eating And Exercise Habits Of Successful Weigh Losers Changing?, Suzanne Phelan, Holly R. Wyatt, James O. Hill, Rena R. Wing

Kinesiology and Public Health

Objective: The purpose of this study was to examine whether the diet and exercise behaviors of successful weight losers entering the National Weight Control Registry (NWCR) have changed between 1995 and 2003.
Research Method and Procedures: Participants (N = 2708) were members of the NWCR who enrolled in intermittent years since 1995. Participants had lost an average of 33.1 kg and maintained a 13.6-kg loss for 5.8 years before enrollment. Evaluations of diet and physical activity were conducted at entry into the NWCR and prospectively over 1 year.
Results: From 1995 to 2003, the daily percentage of calories from fat …


Interactions Between Energy Surplus And Short-Term Exercise On Glucose And Insulin Responses In Healthy People With Induced, Mild Insulin Insensitivity, Todd A. Hagobian, Barry Braun Mar 2006

Interactions Between Energy Surplus And Short-Term Exercise On Glucose And Insulin Responses In Healthy People With Induced, Mild Insulin Insensitivity, Todd A. Hagobian, Barry Braun

Kinesiology and Public Health

Short-term exercise can enhance insulin action, but the effect may be negated by the opposing action of energy surplus. The purpose of this investigation was to test the hypothesis that a single exercise bout would increase insulin action, even when opposed by a concurrent energy surplus. After 2 days in energy balance without exercise, baseline glucose and insulin areas under the curve and the insulin sensitivity index (C-ISI) were measured during an oral glucose tolerance test in 9 healthy, habitually active subjects (6 males, 3 females). A state of relative insulin insensitivity was then induced by systematic overfeeding (OF) to …


Cytokine Response At High Altitude: Effects Of Exercise And Antioxidants At 4300 M, Todd A. Hagobian, Kevin A. Jacobs, Andrew W. Subudhi, Jill A. Fattor, Paul B. Rock, Stephen R. Muza, Charles S. Fulco, Barry Braun, Ann Grediagin, Robert S. Mazzeo, Allen Cymerman, Anne L. Friedlander Feb 2006

Cytokine Response At High Altitude: Effects Of Exercise And Antioxidants At 4300 M, Todd A. Hagobian, Kevin A. Jacobs, Andrew W. Subudhi, Jill A. Fattor, Paul B. Rock, Stephen R. Muza, Charles S. Fulco, Barry Braun, Ann Grediagin, Robert S. Mazzeo, Allen Cymerman, Anne L. Friedlander

Kinesiology and Public Health

Purpose: This study tested the hypothesis that antioxidant supplementation would attenuate plasma cytokine (IL-6, tumor necrosis factor (TNF)-α), and C-reactive protein (CRP) concentrations at rest and in response to exercise at 4300-m elevation.
Methods: A total of 17 recreationally trained men were matched and assigned to an antioxidant (N = 9) or placebo (N = 8) group in a double-blinded fashion. At sea level (SL), energy expenditure was controlled and subjects were weight stable. Then, 3 wk before and throughout high altitude (HA), an antioxidant supplement (10,000 IU β-carotene, 200 IU α-tocopherol acetate, 250 mg ascorbic …