Search Results - "Welk, J"

Validity of Consumer-Based Physical Activity Monitors by LEE, JUNG-MIN, KIM, YOUNGWON, WELK, GREGORY J

“…BACKGROUNDMany consumer-based monitors are marketed to provide personal information on the levels of physical activity and daily energy expenditure (EE), but…”
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Validity and Calibration of the Youth Activity Profile by Saint-Maurice, Pedro F, Welk, Gregory J

“…The purpose of this study was to calibrate and cross-validate the Youth Activity Profile (YAP), a self-report tool designed to capture physical activity (PA)…”
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A Primer on the Use of Equivalence Testing for Evaluating Measurement Agreement by DIXON, PHILIP M, SAINT-MAURICE, PEDRO F, KIM, YOUNGWON, HIBBING, PAUL, BAI, YANG, WELK, GREGORY J

“…PURPOSEStatistical equivalence testing is more appropriate than conventional tests of difference to assess the validity of physical activity (PA) measures…”
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Extracting objective estimates of sedentary behavior from accelerometer data: measurement considerations for surveillance and research applications by Kim, Youngdeok, Welk, Gregory J, Braun, Saori I, Kang, Minsoo

“…Accelerometer-based activity monitors are widely used in research and surveillance applications for quantifying sedentary behavior (SB) and physical activity…”
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Comparison of Consumer and Research Monitors under Semistructured Settings by BAI, YANG, WELK, GREGORY J, NAM, YOON HO, LEE, JOEY A, LEE, JUNG-MIN, KIM, YOUNGWON, MEIER, NATHAN F, DIXON, PHILIP M

“…PURPOSEThis study evaluated the relative validity of different consumer and research activity monitors during semistructured periods of sedentary activity,…”
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Principles of Design and Analyses for the Calibration of Accelerometry-Based Activity Monitors by WELK, GREGORY J

“…The term “calibration” in accelerometry research has come to mean the conversion of counts into other established measurement units. In this article, two types…”
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Criterion Validity of Competing Accelerometry-Based Activity Monitoring Devices by KIM, YOUNGWON, WELK, GREGORY J

“…PURPOSEThe purpose of this study was to examine the comparative and criterion validity of the three activity monitors in relation to a portable metabolic…”
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Everything you wanted to know about selecting the “right” Actigraph accelerometer cut-points for youth, but…: A systematic review by Kim, Youngwon, Beets, Michael W, Welk, Gregory J

“…Abstract Objectives The purpose of this study is to provide an overview of the evidence on the calibration of ActiGraph accelerometers to quantify…”
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Protocols for evaluating equivalency of accelerometry-based activity monitors by Welk, Gregory J, McClain, James, Ainsworth, Barbara E

“…A wide array of accelerometer-based activity monitors has been developed to facilitate objective monitoring of physical activity behaviors, but it has proven…”
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The Associations of Youth Physical Activity and Screen Time with Fatness and Fitness: The 2012 NHANES National Youth Fitness Survey by Bai, Yang, Chen, Senlin, Laurson, Kelly R, Kim, Youngwon, Saint-Maurice, Pedro F, Welk, Gregory J

“…The purpose of the study is to examine the associations of youth physical activity and screen time with weight status and cardiorespiratory fitness in children…”
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Criterion validity of wrist accelerometry for assessing energy intake via the intake-balance technique by Hibbing, Paul R, Welk, Gregory J, Ries, Daniel, Yeh, Hung-Wen, Shook, Robin P

“…Abstract Background Intake-balance assessments measure energy intake (EI) by summing energy expenditure (EE) with concurrent change in energy storage (ΔES)…”
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Calibration and Validation of the Youth Activity Profile: The FLASHE Study by Saint-Maurice, Pedro F., PhD, Kim, Youngwon, PhD, Hibbing, Paul, MS, Oh, April Y., PhD, MPH, Perna, Frank M., PhD, Welk, Gregory J., PhD

“…Introduction This study describes the calibration and validity of the Youth Activity Profile (YAP) for use in the National Cancer Institute’s Family Life,…”
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Body Fat Percentile Curves for U.S. Children and Adolescents by Laurson, Kelly R., PhD, Eisenmann, Joey C., PhD, Welk, Gregory J., PhD

“…Background To date, several studies have been published outlining reference percentiles for BMI in children and adolescents. In contrast, there are limited…”
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Study protocol: process and outcome evaluation of the Walk with Ease program for fall prevention by Lamoureux, Nicholas R, Lansing, Jeni, Dixon, Philip M, Phillips, L Alison, Radske-Suchan, Trina, Dorneich, Michael C, Chou, Li-Shan, Welk, Gregory J

“…Falls are the leading cause of injury related morbidity and mortality in older adults. Primary and secondary prevention strategies that address modifiable risk…”
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Comparing enhancements to well-child visits in the prevention of obesity: ENCIRCLE cluster-randomized controlled trial by Bailey-Davis, Lisa, Moore, Amy M, Poulsen, Melissa N, Dzewaltowski, David A, Cummings, Stacey, DeCriscio, Laina R, Hosterman, Jennifer Franceschelli, Huston, Daniel, Kirchner, H Lester, Lutcher, Shawnee, McCabe, Carolyn, Welk, Gregory J, Savage, Jennifer S

“…Obesity disproportionally impacts rural, lower-income children in the United States. Primary care providers are well-positioned to engage parents in early…”
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Development of Youth Aerobic-Capacity Standards Using Receiver Operating Characteristic Curves by Welk, Gregory J., PhD, Laurson, Kelly R., PhD, Eisenmann, Joey C., PhD, Cureton, Kirk J., PhD

“…Background Cardiovascular fitness has important implications for current and future health in children. Purpose In this paper, criterion-referenced standards…”
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Home environment factors associated with child BMI changes during COVID-19 pandemic by McCabe, Carolyn F, Wood, G Craig, Welk, Gregory J, Cook, Adam, Franceschelli-Hosterman, Jennifer, Bailey-Davis, Lisa

“…The influence of home obesogenic environments, as assessed by the validated Family Nutrition and Physical Activity (FNPA) tool, and child obesity during the…”
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Evaluating the implementation of the SWITCH® school wellness intervention and capacity-building process through multiple methods by McLoughlin, Gabriella M, Candal, Priscila, Vazou, Spyridoula, Lee, Joey A, Dzewaltowski, David A, Rosenkranz, Richard R, Lanningham-Foster, Lorraine, Gentile, Douglas A, Liechty, Laura, Chen, Senlin, Welk, Gregory J

“…School wellness programming is important for promoting healthy lifestyles and academic achievement in youth; however, research is needed on methods that can…”
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Field Validation of the MTI Actigraph and BodyMedia Armband Monitor Using the IDEEA Monitor by Welk, Gregory J, McClain, James J, Eisenmann, Joey C, Wickel, Eric E

“…OBJECTIVE: Accelerometers offer considerable promise for improving estimates of physical activity (PA) and energy expenditure (EE) in free-living subjects…”
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Reliability of accelerometry-based activity monitors: A generalizability study by WELK, Gregory J, SCHABEN, Jodee A, MORROW, James R

“…Numerous studies have examined the validity of accelerometry-based activity monitors but few studies have systematically studied the reliability of different…”
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