Medicine and Health Sciences Commons^™

Association Between Objectively-Measured Sedentary Time And Self-Reported Prescription Medication Use Among Adults: A Pilot Study, Ciarra Ashley Boyne

UNF Graduate Theses and Dissertations

BACKGROUND: Prescription medication use and extended sedentary time are independently related to poor health outcomes (e.g., diabetes, metabolic syndrome, mortality). Historically, survey methods have been used to obtain estimates of total sedentary time (ST), however, recent use of accelerometers avoids self-report bias and affords more characteristics of ST that may be factors in health outcomes (e.g., frequency and duration of sedentary bouts). The aims of this pilot study were to 1) examine the association between objectively measured ST via accelerometers and self-reported prescription medication use in adults and 2) examine the independent association of sedentary bout length and frequency with …

Age-Related Differences In Accelerometer-Assessed Physical Activity And Sleep Parameters Among Children And Adolescents With And Without Autism Spectrum Disorder: A Meta-Analysis, Xiao Liang, Justin A. Haegele, Sean Healy, Andy Choi-Yeung Tse, Hui Qiu, Shi Zhao, Chunxiao Li

Human Movement Sciences & Special Education Faculty Publications

Importance: Physical inactivity and sleep disorders are health-related concerns of youth with autism spectrum disorder (ASD) that can persist from childhood and exacerbate core symptoms. However, evidence on group differences in accelerometer-assessed physical activity and sleep parameters among youth with and without ASD is inconclusive and age-specific effects remain unclear.

Objective: To synthesize evidence on group differences in accelerometer-assessed physical activity and sleep parameters and examine the moderating effects of age between children and adolescents with and without ASD.

Data Sources: American Psychological Association PsychInfo, CINAHL Ultimate, ERIC, MEDLINE, SPORTDiscus with Full Text, and Web of Science from inception to …

Toward Real-Time, Robust Wearable Sensor Fall Detection Using Deep Learning Methods: A Feasibility Study, Haben Yhdego, Christopher Paolini, Michel Audette

Electrical & Computer Engineering Faculty Publications

Real-time fall detection using a wearable sensor remains a challenging problem due to high gait variability. Furthermore, finding the type of sensor to use and the optimal location of the sensors are also essential factors for real-time fall-detection systems. This work presents real-time fall-detection methods using deep learning models. Early detection of falls, followed by pneumatic protection, is one of the most effective means of ensuring the safety of the elderly. First, we developed and compared different data-segmentation techniques for sliding windows. Next, we implemented various techniques to balance the datasets because collecting fall datasets in the real-time setting has …

The Effects Of Repeated Sub-Concussive Impacts On Reaction Time Across A Football Season, Theodore Mostellar

West Chester University Master’s Theses

Context: Recent evidence suggests an accumulation of head impact exposures may influence neurocognitive functioning over time. Objective: The purpose of this study was to analyze the relationship between sub concussive impacts and reaction time in collegiate football players across a football season. Design: Observational cohort study. Setting: Data was collected at a NCAA Division III college throughout the 2022 competitive football season. Participants: 25 players volunteered for the study. Main Outcome Measures: HIE (99%,95%,

Accelerometry And Global Navigation Satellite Systems Derived Training Loads, Abdulmalek Bursais

Electronic Theses and Dissertations

The objectives of this dissertation include 1) to review accelerometry and Global Navigation Satellite System (GNSS) derived measures used to monitor training load, 2) to investigate the validity and reliability of accelerometers (ACCs) to identify stepping events and quantify training load, 3) to assess the relationship between accelerometry and Global Navigation Satellite Systems (GNSS) derived measures in quantifying training load. In Study I, acceleration data was collected via two tri-axial ACC (Device A and Device B) sampling at 100Hz mounted closely together at the xiphoid process level. Each participant (n=30) performed two trials of straight-line walking, running, and …

Statistical Learning Methods To Predict Activity Intensity From Body-Worn Accelerometers, Drew M. Lazar, Munni Begum, Monzur Murshed, Benjamin Nelson, Joshua M. Bock, Mary T. Imboden, Leonard Kaminsky, Alex Hk Montoye

Faculty Publications - Department of Kinesiology

 Physical activity, especially when performed at moderate or vigorous intensity, has short- and long-term health benefits, but measurement of free-living physical activity is challenging. Accelerometers are popular tools to assess physical activity, although accuracy of conventional accelerometer analysis methods is suboptimal. This study developed and tested statistical learning models for assessing activity intensity from body-worn accelerometers. Twenty-eight adults performed 10-21 activities of daily living in two visits while wearing four accelerometers (right hip, right ankle, both wrists). Accelerometer placement is of crucial practical concern and this paper addresses this issue. Boosting, bagging, random forest and decision tree models were …

Proportion Of Adults Meeting The 2018 Physical Activity Guidelines For Americans According To Accelerometers., Zachary Zenko, Erik A. Willis, David A. White

Manuscripts, Articles, Book Chapters and Other Papers

The new 2018 Physical Activity Guidelines for Americans provides updated recommendations for physical activity behavior. These guidelines remove the requirement for physical activity to be obtained in bouts of at least 10 min. The purpose of the present study was to provide an updated estimate of the proportion of adults meeting the physical activity guidelines, based on nationally representative data using accelerometers. Data from 6,525 adults were included in this study. The proportion of adults meeting the physical activity guidelines according to the Department of Health and Human Services and according to the American College of Sports Medicine were estimated …

The Effect Of Fetal Programming On Physical Activity Behaviors, Jessica Garay Redmond

Dissertations - ALL

Appropriate fetal growth and development largely depends on the health and nutritional status of the mother. Exposure to a stressful intra-uterine environment leads to a series of adjustments, known as fetal programming, which have both short- and long-term implications. Immediately, the growth and development of the fetus is altered, resulting in intra-uterine growth restriction and a small size at birth. Long-term, individuals who experience fetal programming are at higher risk of developing certain chronic diseases.

In the current study, we examined the relationship between size at birth (an indicator of intra-uterine growth restriction and thus, fetal programming) and two main …

Physical Activity During Indoor And Outdoor Free Play In Toddlers, Jordan Boyd

Chancellor’s Honors Program Projects

No abstract provided.

Icook 4-H: 0 To 24-Month Accelerometer-Derived Physical Activity And Sedentary Time In Youth, Emily Hofer

Electronic Theses and Dissertations

To assess accelerometer-derived physical activity and sedentary time from 0 to 24- months in youth in the iCook 4-H program. The iCook 4-H Program was a 5-state, randomized, control-treatment, family-based childhood obesity prevention intervention promoting cooking, eating and playing together. Youth, 9-10 years old, and their main adult meal preparer, participated in the 12-week program followed by monthly newsletters and bi-yearly booster sessions until 24-months. Physical activity and sedentary time were determined for youth who wore an Actigraph GT3X+ accelerometer for 7 days at 0, 4, 12, and 24-months and met defined accelerometer compliance standards. Mean daily minutes of sedentary …

Prevalence And Influences Of Preschoolers’ Sedentary Behaviors In Early Learning Centers: A Cross-Sectional Study, Patricia Tucker, Leigh M. Vanderloo, Shauna M. Burke, Jennifer D. Irwin, Andrew M. Johnson

Occupational Therapy Publications

Background

Recent research has highlighted the need for increased evidence regarding the sedentary activity levels of preschoolers. Given the large proportion of time this population spends in various early learning facilities, the exploration of sedentary behaviors within this particular environment should be a priority. The purpose of the study was two-fold: (1) to compare sedentary time of preschoolers in three different early learning environments (i.e., full-day kindergarten [FDK], center-, and home-based childcare); and (2) to assess which characteristics (i.e., staff behaviors, sedentary environment, fixed play environment, portable play environment, sedentary opportunities) of these early learning environments influence preschoolers’ sedentary time. …

Activity Counts From Accelerometers Do Not Add Value To Energy Expenditure Predictions In Sedentary Overweight Individuals During Weight Loss Interventions, Sze Yen Tan, Marijka Batterham, Linda C. Tapsell

Dr Marijka Batterham

Background: Knowing the total energy expenditure (TEE) of overweight adults is important for prescribing weight loss interventions. However, objective measurements of TEE may not always be readily available and can be expensive. This study aimed to investigate the validity of RT3 accelerometers in predicting the TEE of sedentary overweight adults, and to identify any sensitivity to anthropometric changes. Methods: The analysis used data from a 12-week weight loss study. At baseline and 12-week, TEE was predicted using RT3 accelerometers during whole room calorimeter stays. Bias between 2 methods was compared at and between the baseline and 12-week measurement points. Multiple …

Active Video Gaming Compared To Unstructured, Outdoor Play In Children: Measurements Of Estimated Energy Expenditure And Measured Percent Time In Moderate-To-Vigorous Physical Activity, Susan Brittin Macarthur

Masters Theses

It is recommended that children and adolescents participate in > 60 minutes of moderate-to-vigorous physical activity (MVPA) per day. Despite the current recommendations and positive health benefits, many children and adolescents still do not engage in regular physical activity (PA).

One challenge for assisting children in becoming more active is sedentary screen-based activities (SBAs), such as watching television (TV), using computers, and playing sedentary video games (VGs), as SBAs may compete with time for being physically active in children. One modification to sedentary VGs that may increase PA in children is to alter them so that the VGs actually provide an …

Activity Counts From Accelerometers Do Not Add Value To Energy Expenditure Predictions In Sedentary Overweight Individuals During Weight Loss Interventions, Sze Yen Tan, Marijka Batterham, Linda C. Tapsell

L. C. Tapsell

Background: Knowing the total energy expenditure (TEE) of overweight adults is important for prescribing weight loss interventions. However, objective measurements of TEE may not always be readily available and can be expensive. This study aimed to investigate the validity of RT3 accelerometers in predicting the TEE of sedentary overweight adults, and to identify any sensitivity to anthropometric changes. Methods: The analysis used data from a 12-week weight loss study. At baseline and 12-week, TEE was predicted using RT3 accelerometers during whole room calorimeter stays. Bias between 2 methods was compared at and between the baseline and 12-week measurement points. Multiple …

Active Video Gaming Compared To Unstructured, Outdoor Play In Children: Measurements Of Estimated Energy Expenditure And Measured Percent Time In Moderate-To-Vigorous Physical Activity, Susan Brittin Macarthur

Nutrition Publications and Other Works

It is recommended that children and adolescents participate in > 60 minutes of moderate-to-vigorous physical activity (MVPA) per day. Despite the current recommendations and positive health benefits, many children and adolescents still do not engage in regular physical activity (PA).

One challenge for assisting children in becoming more active is sedentary screen-based activities (SBAs), such as watching television (TV), using computers, and playing sedentary video games (VGs), as SBAs may compete with time for being physically active in children. One modification to sedentary VGs that may increase PA in children is to alter them so that the VGs actually provide an …

Activity Counts From Accelerometers Do Not Add Value To Energy Expenditure Predictions In Sedentary Overweight Individuals During Weight Loss Interventions, Sze Yen Tan, Marijka Batterham, Linda C. Tapsell

Faculty of Health and Behavioural Sciences - Papers (Archive)

Background: Knowing the total energy expenditure (TEE) of overweight adults is important for prescribing weight loss interventions. However, objective measurements of TEE may not always be readily available and can be expensive. This study aimed to investigate the validity of RT3 accelerometers in predicting the TEE of sedentary overweight adults, and to identify any sensitivity to anthropometric changes. Methods: The analysis used data from a 12-week weight loss study. At baseline and 12-week, TEE was predicted using RT3 accelerometers during whole room calorimeter stays. Bias between 2 methods was compared at and between the baseline and 12-week measurement points. Multiple …

Objectively Measured Physical Activity In Sixth-Grade Girls, Russell R. Pate, June Stevens, Charlotte Pratt, James F. Sallis, Kathryn H. Schmitz, Larry S. Webber, Gregory J. Welk, Deborah Rohm Young

Faculty Publications

Objectives - To describe the objectively-measured physical activity (PA) characteristics of a diverse sample of 6^th grade girls to examine influences on PA, and to report compliance with PA guidelines.

Design - Cross-sectional study.

Setting - Six locations across the United States.

Participants - 1578 6^th grade girls. Actigraph accelerometers were worn for 7 days, and data for 6 days were included in the analyses.

Main exposure - Race/ethnicity, free-or-reduced price lunch (FRPL), and geographic region.

Main outcome measure - Six operational definitions of adequate activity (60 min or 30 min of daily MVPA at or above 4.6, …

Physical Activity Measurement Methods For Young Children: A Comparative Study, Beth P. Hands, Helen Parker, Dawne Larkin

Health Sciences Papers and Journal Articles

Many behavior patterns that impact on physical activity experiences are established in early childhood, therefore it is important that valid, reliable, and feasible measures are developed to identify children who are not developing appropriate and healthy activity habits. In this study, measures of physical activity derived by accelerometry and pedometry are compared with direct observation for twenty-four 5- and 6-year-old children. The children were monitored for 30 minutes over five consecutive days during a 30 minute free play session in their pre-primary setting. The results for all measures were significantly correlated. When compared to direct observation, the coefficient of determination …

Comparison Of Two Approaches To Structured Physical Activity Surveys Of Adolescents, Robert G. Mcmurray, Kimberly B. Ring, Margarita S. Treuth, Gregory J. Welk, Russell R. Pate, Kathryn H. Schmitz, Julie L. Pickrel, Vivian Gonzalez, Maria João C. A. Almeida, Deborah Rohm Young, James F. Sallis

Faculty Publications

Purpose - To compare the test-retest reliability, convergent validity, and overall feasibility/usability of activity-based (AB) and time-based (TB) approaches for obtaining self-reported moderate-to-vigorous physical activity (MVPA) from adolescents.

Methods - Adolescents (206 females and 114 males) completed two 3-d physical activity recalls using the AB and TB surveys, which contained identical lists of physical activities. The participants wore an MTI Actigraph^® accelerometer for the same period.

Results - The TB instrument took about 3 min longer to complete (P=0.022). Overall 2-d test-retest correlations for MVPA were similar for the two surveys (r=0.676 and 0.667), but the girls …

The Use Of Uniaxial And Triaxial Accelerometers To Measure Children's "Free-Play" Physical Activity, Alise E. Ott, Russell R. Pate, Stewart G. Trost, Dianne S. Ward, Ruth P. Saunders

Faculty Publications

In order to effectively measure the physical activity of children, objective monitoring devices must be able to quantify the intermittent and nonlinear movement of free play. The purpose of this study was to investigate the validity of the Computer Science and Applications (CSA) uniaxial accelerometer and the TriTrac-R3D triaxial accelerometer with respect to their ability to measure 8 "free-play" activities of different intensity. The activities ranged from light to very vigorous in intensity and included activities such as throwing and catching, hopscotch, and basketball. Twenty-eight children, ages 9 to 11, wore a CSA and a heart rate monitor while performing …