Education Commons^™

Wrist-Based Accelerometer Cut-Points To Identify Sedentary Time In 5-11-Year-Old Children, Jessica Chandler, Michael W. Beets, Pedro Saint-Maurice, Robert Glenn Weaver, Dylan P. Cliff, Clemens Drenowatz, Justin B. Moore, Xuemei Sui, Keith Brazendale

Faculty of Social Sciences - Papers (Archive)

Background: The objective of this paper is to derive a wrist-placed cut-point threshold for distinguishing sedentary behaviors from light-intensity walking using the ActiGraph GT3X+ in children. Methods: This study employed a cross-sectional study design, typically used in measurement-related studies. A sample of 167 children, ages 5-11 years (mean ± SD: 8.0 ± 1.8 years), performed up to eight seated sedentary activities while wearing accelerometers on both wrists. Activities included: reading books, sorting cards, cutting and pasting, playing board games, eating snacks, playing with tablets, watching TV, and writing. Direct observation verified sedentary behavior from light activity. Receiver operator characteristic (ROC) …

Gopher Fitstep Pro Accuracy When Measuring Steps And Moderate-To-Vigorous Physical Activity, Ali S. Brian, Justin A. Haegele

Faculty Publications

Background: The Gopher FITStep Pro (GFSP) is a commercially available objective physical activity monitor that records steps taken and moderate-to-vigorous physical activity (MVPA).

Objective: The purpose of this study was to evaluate the accuracy of the GFSP for measuring steps taken in a guided walking condition and MVPA during planned fitness activities.

Method: University-aged participants (N = 35, M_age = 20) wore two GFSP (right and left side) pedometers and one ActiGraph GT3X+ accelerometer during both conditions.

Results: Paired samples t-tests determined that self-step counts in the guided walking condition were not significantly different than the right side GFSP …

Gopher Fitstep Pro Accuracy When Measuring Steps And Moderate-To-Vigorous Physical Activity, Ali Brian, Justin A. Haegele

Human Movement Sciences & Special Education Faculty Publications

Background: The Gopher FITStep Pro (GFSP) is a commercially available objective physical activity monitor that records steps taken and moderate-to-vigorous physical activity (MVPA).

Objective: The purpose of this study was to evaluate the accuracy of the GFSP for measuring steps taken in a guided walking condition and MVPA during planned fitness activities.

Method: University-aged participants (N = 35, M_age = 20) wore two GFSP (right and left side) pedometers and one ActiGraph GT3X+ accelerometer during both conditions.

Results: Paired samples t-tests determined that self-step counts in the guided walking condition were not significantly different …

Using Wii Technology And Experiential Learning To Teach Newtonian Mechanics To Rural Middle School Students, Joseph S. Dvorak, Tanya C. Franke-Dvorak, Shane Neel

Biosystems and Agricultural Engineering Faculty Publications

This study looked at the effects of an experiential learning activity using the accelerometer in the Wii Remote to teach basic concepts of Newtonian mechanics, e.g., acceleration, to middle school students in a rural school district. A major prerequisite for students at the mid-level in biosystems engineering programs is that they have a good knowledge of basic science, including physics. Education in these concepts must begin before college, such as at the middle school level. Improvements in science education are vitally necessary to achieve essential learning outcomes for middle school students in the U.S. and to prepare these students for …

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 were usedduring …

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 …

Mother-Reported Sleep, Accelerometer-Estimated Sleep, And Weight Status In Mexican American Children: Sleep Duration Is Associated With Increased Adiposity And Risk For Overweight/Obese Status, Suzanna M. Martinez, Louise C. Greenspan, Nancy F. Butte, Steven E. Gregorich, Cynthia L. De Groat, Julianna Deardorff, Carlos Penilla, Lauri A. Pasch, Elena Flores, Jeanne M. Tschann

School of Education Faculty Research

We know of no studies comparing parent-reported sleep with accelerometer-estimated sleep in their relation to pediatric adiposity. We examined: 1) the reliability of mother-reported sleep compared with accelerometer-estimated sleep, and 2) the relationship between both sleep measures and child adiposity. The current cross-sectional study included 304 Mexican American mother-child pairs recruited from Kaiser Permanente Northern California. We measured sleep duration, using maternal report and accelerometry, and child anthropometrics. Concordance between sleep measures was evaluated using the Bland-Altman method. We conducted zero-ordered correlations between mother-reported sleep, accelerometer-estimated sleep and child BMI z-scores (BMIz). Using linear regression, we examined three models to …

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) …

Measuring Adolescent Boys' Physical Activity: Bout Length And The Influence Of Accelerometer Epoch Length, Taren Sanders, Dylan Cliff, Chris Lonsdale

Faculty of Social Sciences - Papers (Archive)

Objectives

Accurate, objective measurement is important for understanding adolescents' physical activity (PA) behaviour. When using accelerometry to objectively measure PA, a decision must be made regarding how frequently data is recorded (i.e., epoch length). The purpose of this study was to examine i) PA bout length, and ii) the effect of variations in accelerometer epoch length on PA estimates during physical education (PE) and leisure time in adolescent boys.

Design

Cross-sectional study.

Methods

Year 9 boys (N=133; mean age ±SD =14.36±0.48 years) wore accelerometers during two PE lessons, and for a period of seven consecutive days. Data were reintegrated from …

Relative Validity Of 3 Accelerometer Models For Estimating Energy Expenditure During Light Activity, Alexander Allan Wetten, Marijka Batterham, Sze Yen Tan, Linda Tapsell

Faculty of Social Sciences - Papers (Archive)

Background: With physical inactivity inextricably linked to the increasing prevalence of obesity, there is a need for validated methods that measure free-living energy expenditure (EE) within sedentary environments. While accelerometers enable these measurements, few studies have compared device accuracy in such settings. The aim of this study was to investigate the relative validity of the Actigraph, RT3 and SenseWear Armband (SWA). Methods: Twenty-three (11 male, 12 female) participants (age: 25.3 ± 6.3 yr; BMI: 22.6 ± 2.7) wore 3 accelerometers at designated sites during a 4-hour stay in the Whole Room Calorimeter (WRC). Participants performed 2 10-minute bouts of light-intensity …