Education Commons^™

Examination Of Different Accelerometer Cut-Points For Assessing Sedentary Behaviors In Children, Youngwon Kim, Jung-Min Lee, Bradley P. Peters, Glenn A. Gaesser, Gregory J. Welk

Health and Kinesiology Faculty Publications

Background: Public health research on sedentary behavior (SB) in youth has heavily relied on accelerometers. However, ithas been limited by the lack of consensus on the most accurate accelerometer cut-points as well as by unknown effectscaused by accelerometer position (wrist vs. hip) and output (single axis vs. multiple axes). The present study systematicallyevaluates classification accuracy of different Actigraph cut-points for classifying SB using hip and wrist-worn monitors andestablishes new cut-points to enable use of the 3-dimensional vector magnitude data (for both hip and wrist placement).
Methods: A total of 125 children ages 7–13 yrs performed 12 randomly selected …

Non-Overweight And Overweight Children’S Physical Activity During School Recess, Nicola D. Ridgers, Pedro F. Saint-Maurice, Gregory J. Welk, Mohammed Siahpush, Jennifer L. Huberty

Health and Kinesiology Faculty Publications

Objective: Little research has investigated children’s physical activity levels during school recess and the contribution of recess to school day physical activity levels by weight status. The aims of this study were to examine non-overweight and overweight children’s physical activity levels during school recess, and examine the contribution of recess to school day physical activity.

Design: Cross-sectional.

Setting: Four elementary schools located in Nebraska, United States of America (USA).

Methods: Two hundred and seventeen children (99 boys, 118 girls; 47.9% overweight) wore a uni-axial accelerometer for five consecutive school days during autumn 2009. The proportion of …

Evaluation Of Gogirlgo!; A Practitioner Based Program To Improve Physical Activity, Jennifer L. Huberty, Danae M. Dinkel, Michael W. Beets

Health and Kinesiology Faculty Publications

Background:
GoGirlGo! (GGG) is designed to increase girls’ physical activity (PA) using a health behavior and PA-based curriculum and is widely available for free to afterschool programs across the nation. However, GGG has not been formally evaluated. The purpose of this pilot study was to evaluate the effectiveness of the GGG curricula to improve PA, and self-efficacy for and enjoyment of PA in elementary aged girls (i.e., 5-13 years).

Methods:
Nine afterschool programs were recruited to participate in the pilot (within subjects repeated measures design). GGG is a 12-week program, with a once a week, one-hour lesson with 30 minutes …

Using Sensewear Armband And Diet Journal To Promote Adolescents’ Energy Balance Knowledge And Motivation, Senlin Chen, Xihe Zhu, Gregory J. Welk, Youngwon Kim, Jung-Min Lee, Nathan Meier

Health and Kinesiology Faculty Publications

Purpose: Educating adolescents about energy balance (EB) is essential for effective weight control. This study utilized the Sensewear (SWA) armband and a diet journal to promote adolescents’ EB knowledge and motivation.

Methods: Ninety sixth graders were randomly assigned into the experimental group (n ¼ 46) who utilized SWA and diet journal for 7 consecutive days or the control group (n ¼ 44) who did not. Both groups were pre- and post-measured on EB knowledge, situational interest, and weight. The experimental group was tracked on motivation effort, energy expenditure (EE), and energy intake (EI).

Results: EB knowledge significantly …

Effects On Oxygen Consumption And Metabolic Gene Expression When Determining Experimental Exercise Intensity Based On Exercise Capacity Tests Conducted In Hypoxic And Normoxic Environments, Dustin Slivka, Matthew Ws Heesch, Charles L. Dumke, John S. Cuddy, Walter S. Hailes, Brent C. Ruby

Health and Kinesiology Faculty Publications

Abstract: Exercise intensity can be set relative to VO2 max measured during hypoxic or control conditions in studies investigating exercise in hypoxic environments. It currently is not clear which is the most appropriate method.

Objective: The objective of this brief report is to determine the response to 1 hour of cycling at 60% of peak power when measured in either normoxic or hypoxic conditions.

Methods: Eleven recreationally active male participants (24 ± 4 yrs, 173 ± 20 cm, 82 ± 12 kg, 15.2 ± 7.1% fat, 4.0 ± 0.6 L x min-1 VO2 max) completed two 1 …

Accuracy Of Neck Circumference In Classifying Overweight And Obese Us Children, Youngwon Kim, Jung-Min Lee, Kelly Laursen, Yang Bai, Glenn A. Gaesser, Gregory J. Welk

Health and Kinesiology Faculty Publications

Objective. To evaluate classification accuracy of NC and compare it with body mass index (BMI) in identifying overweight/obese US children. Methods. Data were collected from 92 children (boys: 61) aged 7 to 13 over a 2-year period. NC, BMI, and percent of body fat (BF%) were measured in each child and their corresponding cut-off values were applied to classify the children as being overweight/obese. Classification accuracy of NC and BMI was systematically investigated for boys and girls in relation to true overweight/obesity categorization as assessed with a criterion measure of BF% (i.e., Bod Pod). Results. For boys, Cohen’s k (0.25), …

Physical Activity Barriers And Facilitators Among Working Mothers And Fathers, Emily L. Mailey, Jennifer Huberty, Danae M. Dinkel, Edward Mcauley

Health and Kinesiology Faculty Publications

Background: The transition to parenthood is consistently associated with declines in physical activity. In particular, working parents are at risk for inactivity, but research exploring physical activity barriers and facilitators in this population has been scarce. The purpose of this study was to qualitatively examine perceptions of physical activity among working parents.

Methods: Working mothers (n = 13) and fathers (n = 12) were recruited to participate in one of four focus group sessions and discuss physical activity barriers and facilitators. Data were analyzed using immersion/crystallization in NVivo 10.

Results: Major themes for barriers included family responsibilities, guilt, lack of …

A Qualitative Study Exploring Women’S Beliefs About Physical Activity After Stillbirth, Jennifer Huberty, Jason Coleman, Katherine Rolfsmeyer, Serena Wu

Health and Kinesiology Faculty Publications

Background: Research provides strong evidence for improvements in depressive symptoms as a result of physical activity participation in many populations including pregnant and post-partum women. Little is known about how women who have experienced stillbirth (defined as fetal death at 20 or more weeks of gestation) feel about physical activity or use physical activity following this experience. The purpose of this study was to qualitatively explore women’s beliefs about physical activity following a stillbirth.

Methods: This was an exploratory qualitative research study. Participants were English-speaking women between the ages of 19 and 44 years who experienced a stillbirth …