A5079071629- Physical Activity and Health
- Obesity, Physical Activity, Diet
- Cardiovascular and exercise physiology
- Mobile Health and mHealth Applications
- Behavioral Health and Interventions
- Children's Physical and Motor Development
- Health and Lifestyle Studies
- Multiple Sclerosis Research Studies
- Context-Aware Activity Recognition Systems
- Neuroscience and Music Perception
- Sports Performance and Training
- Balance, Gait, and Falls Prevention
- EEG and Brain-Computer Interfaces
- Time Series Analysis and Forecasting
- Scientific Computing and Data Management
- Nutritional Studies and Diet
- Heart Rate Variability and Autonomic Control
- Neural dynamics and brain function
- Gestational Diabetes Research and Management
- Voice and Speech Disorders
- Literature Analysis and Criticism
- Child Nutrition and Feeding Issues
- Physical Education and Training Studies
- Muscle metabolism and nutrition
- Body Composition Measurement Techniques
University of Illinois Chicago
2023-2025
Center for Children
2021-2024
Children's Mercy Hospital
2021-2024
University of Tennessee at Knoxville
2017-2024
Knoxville College
2017-2024
Iowa State University
2015-2021
University of California, San Diego
2021
Mercy Hospital
2021
Leidos (United States)
2016
National Cancer Institute
2016
Purpose Statistical equivalence testing is more appropriate than conventional tests of difference to assess the validity physical activity (PA) measures. This article presents underlying principles and gives three examples from PA fitness assessment research. Methods The illustrate different uses tests. Example 1 data evaluate an monitor's a known criterion. 2 illustrates two field-based measures with no reference method. 3 regression across suite 23 activities. Results reporting...
The purpose of this investigation was to examine the validity energy expenditure (EE), steps, and heart rate measured with Apple Watch 1 Fitbit Charge HR. Thirty-nine healthy adults wore two monitors while completing a semi-structured activity protocol consisting 20 minutes sedentary activity, 25 aerobic exercise, light intensity physical activity. Criterion measures were obtained from an Oxycon Mobile for EE, pedometer Polar strap worn on chest rate. For estimating whole-trial mean absolute...
Purpose Interventions focused on singing may provide additional benefits to established voice and respiratory therapies, due their greater emphasis the muscle control system in those with Parkinson’s disease (PD) progresses. The purpose of this study was examine if can improve voice, pressure quality life (QOL) persons PD. Methods This pilot measured effects a intervention 27 participants Participants were assigned high (met twice weekly) or low once dosage group. Voice, QOL measures...
Unsupervised semantic segmentation in the time series domain is a much studied problem due to its potential detect unexpected regularities and regimes poorly understood data. However, current techniques have several shortcomings, which limited adoption of beyond academic settings for four primary reasons. First, most methods require setting/learning many parameters thus may problems generalizing novel situations. Second, implicitly assume that all data segmentable difficulty when assumption...
The purpose of this study was to explore whether gyroscope and magnetometer data from the ActiGraph GT9X improved accelerometer-based predictions energy expenditure (EE).Thirty participants (mean ± SD: age, 23.0 2.3 yr; body mass index, 25.2 3.9 kg·m) volunteered complete study. Participants wore five monitors (right hip, both wrists, ankles) while performing 10 activities ranging rest running. A Cosmed K4b worn during trial, as a criterion measure EE (30-s averages) expressed in METs....
Purpose The purpose of this study was to assess the accuracy Cosmed K5 portable metabolic system dynamic mixing chamber (MC) and breath-by-breath (BxB) modes against criterion Douglas bag (DB) method. Methods Fifteen participants (mean age±SD, 30.6±7.4 yrs) had their variables measured at rest during cycling 50, 100, 150, 200, 250W. During each stage, were connected first respiratory gas collection method (randomized) for four minutes reach steady state, followed by 3-min (or 5-min DB)...
ABSTRACT Introduction Sitting patterns predict several healthy aging outcomes. These can potentially be measured using hip-worn accelerometers, but current methods are limited by an inability to detect postural transitions. To overcome these limitations, we developed the C onvolutional Neural Network H ip A ccelerometer P osture (CHAP) classification method. Methods CHAP was on 709 older adults who wore ActiGraph GT3X+ accelerometer hip, with ground-truth sit/stand labels derived from...
Obesity is a risk factor for developing multiple sclerosis (MS) and MS-related disability. The efficacy of behavioral weight loss interventions among people with MS (pwMS) remains largely unknown.Examine whether group-based telehealth intervention produces clinically significant in pwMS obesity.Seventy-one were randomized to the or treatment-as-usual (TAU). 6-month program promoted established guidelines calorie reduction increased physical activity. Anthropometric measurements, mobility...
Purpose The Youth Activity Profile (YAP) is a 7-day self-report designed to quantify physical activity and sedentary behaviors among youth. This study evaluated the reliability of online version YAP equivalence with paper-based version. Method A total 2,490 participants from 17 schools in Iowa Texas completed YAP. Each classroom was randomly assigned complete either print or twice. variance components model used assess test-retest testing also applied. Results Both paper versions had similar...
Background : There is considerable interest in evaluating 24-hr activity cycles; however, the ideal tools for doing so have yet to be identified. Monitor-based approaches are widely endorsed capturing movement, but novel methods needed assess context of physical behaviors. This study evaluated validity two thigh-worn devices assessing behaviors during a period. Methods 21 participants concurrently wore Move 4 and activPAL 3 microdevices on thigh full day then completed Activities Completed...
The wrist is increasingly being used as the preferred site for objectively assessing physical activity but relative accuracy of processing methods data has not been determined. Objective: This study evaluates validity four wrist-worn ActiGraph (AG) against energy expenditure (EE) measured using a portable metabolic analyzer (OM; Oxycon mobile) and Compendium activity. Approach: Fifty-one adults (ages 18–40) completed 15 activities ranging from sedentary to vigorous in laboratory setting...
Self-reported youth physical activity (PA) is typically overestimated. We aimed to calibrate and validate a self-report tool among English youth. Four-hundred-and-two participants (aged 9–16 years; 212 boys) wore SenseWear Armband Mini devices (SWA) for eight days completed the Youth Activity Profile (YAP) on eighth day. Calibration algorithms temporally matched segments were generated from YAP data using quantile regression. The applied in an independent cross-validation sample, student-...
ABSTRACT The popularity of activity trackers has grown in recent years, and health-conscious consumers are interested using them for personal motivation goal setting. Although these devices can estimate several variables, steps the simplest easiest to understand. Therefore, purpose this study was investigate validity tracker step counts during treadmill locomotion (walking running on a treadmill), overground walking hallway), activities daily living (ADL). Twenty-one adults (mean ± SD, 26 9...
A balance between the feasibility and validity of measures is an important consideration for physical activity research - particularly in school-based with youth. The present study extends previously tested calibration methods to develop test new equations online version Youth Activity Profile (YAP) tool, a self-report tool designed school applications. Data were collected across different regions seasons more robust, generalizable equations. involved total 717 youth from 33 schools (374...
Hip-worn accelerometers are commonly used, but data processed using the 100 counts per minute cut point do not accurately measure sitting patterns. We developed and validated a model to classify patterns hip-worn accelerometer from wide age range of older adults.
Sedentary behavior (SB) is a recognized risk factor for many chronic diseases. ActiGraph and activPAL are two commonly used wearable accelerometers in SB research. The former measures body movement the latter posture. goal of current study to quantify pattern variation (by activity counts) during activPAL-identified sitting events, examine associations between patterns health-related outcomes, such as systolic diastolic blood pressure (SBP DBP).
Portable accelerometers are used to capture physical activity in free-living individuals with the ActiGraph being one of most widely device brands and health research. Recently, February 2022, published their count algorithm released a Python package for generating counts from raw acceleration data five generations devices. The nonproprietary derivation improved transparency interpretation accelerometer device-measured activity, but release does not integrate packages developed by research...
The purpose of this study was to compare energy expenditure (EE) estimates from 5 consumer physical activity monitors (PAMs) indirect calorimetry in a sample youth. Eighty-nine youth (mean (SD); age, 12.3 (3.4) years; 50% female) performed 16 semi-structured activities. Activities were duplicate across 2 visits. Participants wore Cosmed K4b2 (criterion for EE), an Apple Watch (left wrist), Mymo Tracker (right hip), and Misfit Shine devices hip; right shoe). randomized wear Samsung Gear Fit...
Purpose: To examine the effect of brief, intermittent stepping bouts on step counts from 10 physical activity monitors (PAMs). Methods: Adults (N = 21; M ± SD, 26 9.0 yr) wore four PAMs wrist (Garmin Vivofit 2, Fitbit Charge, Withings Pulse Ox, and ActiGraph wGT3X-BT [AG]), hip (Yamax Digi-Walker SW-200 [YX], Zip, Omron HJ-322U, AG), two ankle (StepWatch [SW] with default modified settings). AG data were processed without low frequency extension (AGL) Moving Average Vector Magnitude...
Purpose: To assess changes in criterion validity when modifying cut-points for use different epoch lengths. Method: Simulated free-living data came from 42 adolescents (2-hr each) and 29 adults (6-hr wearing a hip-worn accelerometer portable indirect calorimeter (Cosmed K4b2). K4b2 were classified as sedentary behavior (SB), light physical activity (LPA), or moderate-to-vigorous (MVPA), compared to estimates processed with three youth adult six lengths (1, 5, 10, 15, 30, 60-s). A cut-point...