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Full-Text Articles in Education

Validity Of Physical Activity Monitors For Assessing Lower Intensity Activity In Adults, M. Andrés Calabró, Jung-Min Lee, Pedro F. Saint-Maurice, Hyelim Yoo, Gregory J. Welk Sep 2014

Validity Of Physical Activity Monitors For Assessing Lower Intensity Activity In Adults, M. Andrés Calabró, Jung-Min Lee, Pedro F. Saint-Maurice, Hyelim Yoo, Gregory J. Welk

Health and Kinesiology Faculty Publications

Background: Accelerometers can provide accurate estimates of moderate-to-vigorous physical activity (MVPA).However, one of the limitations of these instruments is the inability to capture light activity within an acceptablerange of error. The purpose of the present study was to determine the validity of different activity monitors forestimating energy expenditure (EE) of light intensity, semi-structured activities.
Methods: Forty healthy participants wore a SenseWear Pro3 Armband (SWA, v.6.1), the SenseWear Mini, theActiheart, ActiGraph, and ActivPAL monitors, while being monitored with a portable indirect calorimetry (IC).Participants engaged in a variety of low intensity activities but no formalized scripts or protocols ...


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 Apr 2014

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 activities ...


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 Mar 2014

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 time ...


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 Jan 2014

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 ...


Calibration Of Built-In Accelerometer Using A Commercially Available Smartphone, Jung-Min Lee, Youngwon Kim, Yi-Suk Kwon, Timothy R. Derrick, Gregory J. Welk Jan 2014

Calibration Of Built-In Accelerometer Using A Commercially Available Smartphone, Jung-Min Lee, Youngwon Kim, Yi-Suk Kwon, Timothy R. Derrick, Gregory J. Welk

Research Presentations

Wearable trackers that detect sleep offer users a way to track their sleep quality and patterns without the use of expensive equipment. Few studies have tested the validity of these trackers on sleep measure. PURPOSE: To examine the validity of the Actigraph GT9X (AG), SenseWear Mini Armband (SW), Basis Peak (BP), Fitbit Charge HR (FB), Jawbone UP3 (JU), and Garmin Vivosmart (GV) for estimating sleep variables as compared with a sleep diary. METHODS: 78 healthy individuals participated in the study. Group 1 (n= 38) and wore the AG, SW, BP, and FB or Group 2 (n = 40) and wore the ...


Evaluation Of Gogirlgo!; A Practitioner Based Program To Improve Physical Activity, Jennifer L. Huberty, Danae M. Dinkel, Michael W. Beets Jan 2014

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 ...


Physical Activity Barriers And Facilitators Among Working Mothers And Fathers, Emily L. Mailey, Jennifer Huberty, Danae M. Dinkel, Edward Mcauley Jan 2014

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 support ...


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 Jan 2014

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 increased and situational ...