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2020

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Articles 421 - 450 of 632

Full-Text Articles in Kinesiology

The Effectiveness Of An Infrapatellar Strap On Reducing Pain Associated With Patellar Tendinopathy, Jenny Toonstra, Andrea Cripps Mar 2020

The Effectiveness Of An Infrapatellar Strap On Reducing Pain Associated With Patellar Tendinopathy, Jenny Toonstra, Andrea Cripps

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: To determine the effectiveness of an infrapatellar strap on pain reduction in participants with patellar tendinopathy. Methods: Articles were identified from PubMed, CINAHL, Medline, and SportDiscus using the string “((((patellar tendinitis OR patellar tendinopathy))) AND ((cho-pat strap OR infrapatellar strap OR compression device OR brace))) AND pain” from January 2009-January 2019, resulting in nine studies. After a review of the title and abstracts, six studies were reviewed in-depth. Of these articles, four studies met the inclusion criteria. Two independent reviewers assessed the level of evidence of included studies using the Oxford Center for Evidence-Based Medicine (2009). Changes in pain …


Lessons Learned: How To Organize Your Laboratory Meetings, Nicholas Stergiou Mar 2020

Lessons Learned: How To Organize Your Laboratory Meetings, Nicholas Stergiou

Journal Articles

In this issue, JAB continues a series of editorials from highlyimpactful faculty and researchers on“lessons learned”through-out their careers or lives. The hope is that the rest of us can benefitfrom their experiences. I would like to thank these individuals forsharing their thoughts with us.—Michael Madigan, Editor-in-ChiefNicholas Stergiou([email protected])is with the Divisionof Biomechanics and Research Development, University of Ne-braska Omaha, Omaha, NE; and the College of Public Health,University of Nebraska Medical Center, Omaha, NE.


Comparisons Of Muscle Strength, Size, And Neuromuscular Function In Pre- And Post-Pubescent Males And Females, Zachary M. Gillen Mar 2020

Comparisons Of Muscle Strength, Size, And Neuromuscular Function In Pre- And Post-Pubescent Males And Females, Zachary M. Gillen

College of Education and Human Sciences: Dissertations, Theses, and Student Research

The purpose of this study was to compare measurements of muscle strength, size, and neuromuscular function of the forearm flexors in pre- and post-pubescent males and females. Forty pre-pubescent (mean ± 95% confidence interval, age = 9.79 ± 0.35 yrs, n = 10 males, n = 10 females) and post-pubescent (age = 17.23 ± 0.58 yrs, n = 10 males, n = 10 females) participants completed this study. Biceps brachii muscle cross-sectional area (CSA) and muscle volume (MV) were quantified from ultrasound images. Participants completed maximal voluntary isometric contractions (MVICs) of the forearm flexors and extensors, and submaximal isometric step …


Estimation Of Body Fat Percentage In Jockeys: Implications For A Weight Category Sport, Arthur Dunne, Giles Warrington, Gillian O'Loughlin, Siobhan O'Connor, Michael Harrison, Adrian Mcgoldrick, Jennifer Pugh, Sarahjane Cullen Mar 2020

Estimation Of Body Fat Percentage In Jockeys: Implications For A Weight Category Sport, Arthur Dunne, Giles Warrington, Gillian O'Loughlin, Siobhan O'Connor, Michael Harrison, Adrian Mcgoldrick, Jennifer Pugh, Sarahjane Cullen

International Journal of Exercise Science

International Journal of Exercise Science 13(4): 511-525, 2020. The assessment of body composition in horse racing, a unique weight-restricted sport, provides an important health and performance indicator. The accuracy of skinfold prediction equations at estimating % body fat (% BF) was compared with dual-energy X-ray absorptiometry (DXA) data in a group of professional Irish jockeys (age 27.5 ± 7.7 years). Body composition was assessed in seventy-two male professional jockeys (flat n=35 and national hunt n=37) using standardised guidelines for skinfold thickness at 8 sites and DXA body fat assessment. Hydration status was assessed using urine specific gravity (Usg) to determine …


Relationships Among Metabolic-Risk, Body Fatness, And Muscular Fitness In Young Obese Latino Children, Justin J. Merrigan, Sina Gallo, Jennifer B. Fields, Robyn Mehlenbeck, Margaret T. Jones Mar 2020

Relationships Among Metabolic-Risk, Body Fatness, And Muscular Fitness In Young Obese Latino Children, Justin J. Merrigan, Sina Gallo, Jennifer B. Fields, Robyn Mehlenbeck, Margaret T. Jones

International Journal of Exercise Science

International Journal of Exercise Science 13(3): 488-500, 2020. Given the high prevalence of obesity in Latino children and potential health risks, the purpose of this study was to: 1) evaluate relationships among metabolic-risk, fitness, and body fatness; 2) determine sex differences in cardio-metabolic risk factors and fitness of obese children of Latino descent. Sixty children (boys, n= 39, 7.8 ± 1.5 years; girls, n= 21, 7.2 ± 1.5 years; body mass index, 97.8 ± 2.5thpercentile) completed assessments of height, weight, and body fat, prior to fasted blood draws and a battery of fitness tests. Cardio-metabolic markers …


Characterization Of Adult Heart Rate Responses During Recreational Skateboarding At Community Skateparks, Tyler Wiles, Daniel Kellogg, Heather Furr, Jeff A. Nessler, Sean C. Newcomer Mar 2020

Characterization Of Adult Heart Rate Responses During Recreational Skateboarding At Community Skateparks, Tyler Wiles, Daniel Kellogg, Heather Furr, Jeff A. Nessler, Sean C. Newcomer

International Journal of Exercise Science

International Journal of Exercise Science 13(2): 501-510, 2020. Youth participating in recreational skating at community skate parks attain exercise intensities and durations that are comparable with the CDC’s exercise recommendations for cardiovascular fitness for their age group. However, it is currently unclear if adults who skateboard in the same environment also achieve the recommended intensities and durations for cardiovascular fitness. Therefore, the purpose of this study was to test the hypothesis that skateboarding would elicit heart rates and durations consistent with the CDC’s recommendations for cardiovascular fitness in adults. Fifty-five subjects between ages 18-55 were recruited from six community skateparks …


Energetic And Physical Limitations On The Breaching Performance Of Large Whales, Paolo S. Segre, Jean Potvin, David E. Cade, John Calambokidis, Jacopo Di Clemente, Frank E. Fish, Ari S. Friedlaender, William T. Gough, Shirel R. Kahane-Rapport, Claudia Oliveira, Susan E. Parks, Gwenith S. Penry, Malene Simon, Alison K. Stimpert, David N. Wiley, K. C. Bierlich, Peter T. Madsen, Jeremy A. Goldbogen Mar 2020

Energetic And Physical Limitations On The Breaching Performance Of Large Whales, Paolo S. Segre, Jean Potvin, David E. Cade, John Calambokidis, Jacopo Di Clemente, Frank E. Fish, Ari S. Friedlaender, William T. Gough, Shirel R. Kahane-Rapport, Claudia Oliveira, Susan E. Parks, Gwenith S. Penry, Malene Simon, Alison K. Stimpert, David N. Wiley, K. C. Bierlich, Peter T. Madsen, Jeremy A. Goldbogen

Biology Faculty Publications

The considerable power needed for large whales to leap out of the water may represent the single most expensive burst maneuver found in nature. However, the mechanics and energetic costs associated with the breaching behaviors of large whales remain poorly understood. In this study we deployed whale-borne tags to measure the kinematics of breaching to test the hypothesis that these spectacular aerial displays are metabolically expensive. We found that breaching whales use variable underwater trajectories, and that high-emergence breaches are faster and require more energy than predatory lunges. The most expensive breaches approach the upper limits of vertebrate muscle performance, …


Aromatic L-Amino Acid Decarboxylase Gene Therapy Enhanceslevodopa Response In Parkinson’S Disease, John G. Nutt, Carolin Curtze, Amie Hiller, Shannon Anderson, Paul S. Larson, Amber D. Van Laar, R. Mark Richardson, Marin E. Thompson, Alexander Sedkov, Mika Leinonen, Bernard Ravina, Krystof Bankiewicz, Chadwick W. Christine Mar 2020

Aromatic L-Amino Acid Decarboxylase Gene Therapy Enhanceslevodopa Response In Parkinson’S Disease, John G. Nutt, Carolin Curtze, Amie Hiller, Shannon Anderson, Paul S. Larson, Amber D. Van Laar, R. Mark Richardson, Marin E. Thompson, Alexander Sedkov, Mika Leinonen, Bernard Ravina, Krystof Bankiewicz, Chadwick W. Christine

Journal Articles

Background: As Parkinson’s disease progresses, levodopa treatment loses efficacy, partly through the loss of the endogenous dopamine-synthesizing enzyme L-amino acid decarboxylase (AADC). In the phase I PD-1101 study, putaminal administration of VY-AADC01, an investigational adeno-associated virus serotype-2 vector for delivery of the AADC gene in patients with advanced Parkinson’s disease, was well tolerated, improved motor function, and reduced antiparkinsonian medication requirements.

Objectives: This substudy aimed to determine whether the timing and magnitude of motor response to intravenous levodopa changed in PD-1101 patients after VY-AADC01administration.

Methods: Participants received 2-hour threshold (0.6 mg/kg/h) and suprathreshold (1.2 mg/kg/h) levodopa infusions …


How Stair Negotiation Affects Knee Joint Contact Forces In Individuals Post-Total Knee Arthroplasty, Todd Leutzinger Mar 2020

How Stair Negotiation Affects Knee Joint Contact Forces In Individuals Post-Total Knee Arthroplasty, Todd Leutzinger

UNO Student Research and Creative Activity Fair

This study investigates how walking up and down stairs affects knee joint contact forces in individuals post-total knee arthroplasty compared to overground level walking and healthy controls.


Developing And Testing Of Low-Cost 3d Printed Prostheses To Restore And Improve Function Of Children With Congenital Or Traumatic Amputations, Rahul Raj, Christopher Copeland, Claudia Cortes Reyes, Kaitlin Fraser, David Salazar Mar 2020

Developing And Testing Of Low-Cost 3d Printed Prostheses To Restore And Improve Function Of Children With Congenital Or Traumatic Amputations, Rahul Raj, Christopher Copeland, Claudia Cortes Reyes, Kaitlin Fraser, David Salazar

UNO Student Research and Creative Activity Fair

The purpose of this investigation was to provide technical considerations and clinical evidence of the possible benefits and obstacles in the use of upper-limb 3D printed prostheses in paediatric populations. This information is crucial for clinicians interested in exploring the use of 3D printed prostheses for their patients. In the present study, children with congenital digit reductions (n=5); absent digits (one traumatic and four congenital) (n=5) and with upper-limb reductions (n=9). The perceived functionality of upper-limbs before the use of the prosthesis and after 4 months of use. In addition, gross dexterity, anthropometric measurements, active range of motion, and strength …


Determining The Optimal Tension For An Ankle-Foot Assistive Device, Cody Anderson Mar 2020

Determining The Optimal Tension For An Ankle-Foot Assistive Device, Cody Anderson

UNO Student Research and Creative Activity Fair

Introduction

Peripheral artery disease (PAD) is caused by atherosclerosis, a buildup of cholesterol and fatty acid deposits, which blocks blood flow to the arms, legs, and feet. Ankle assistive devices have recently been implemented in various clinical population to improve walking ability. Our group has developed an ankle assistive device to improve walking ability in patients with PAD. This study tested our newly developed assistive device with several tension assistance levels and their effect on metabolic cost.

Methodology

Ten healthy subjects were recruited for this study. A spring was attached to the posterior side of the device parallel to the …


The Effect Of Sensory Input On The Temporal Structure Of Center Of Pressure In Stroke Survivors, Samantha Chong Mar 2020

The Effect Of Sensory Input On The Temporal Structure Of Center Of Pressure In Stroke Survivors, Samantha Chong

UNO Student Research and Creative Activity Fair

Stroke is the leading cause of disability that affects 17 million people worldwide. Patients post-stroke suffer from maintaining balance because the brain may not be able to receive or process visual, vestibular and proprioceptive sensory information: all of which contribute towards maintaining stability. Information provided by vision is important for spatial orientation, as it develops an environmental perspective. Proprioception is detected through the stretching of tendons and surrounding tissue and is able to help the brain determine spatial location. The vestibular system provides a sense of balance detecting rotations and linear accelerations through the vestibulo-ocular reflex. The vestibular system is …


Step Width Variability As A Discriminator Of Age-Related Gait Changes, Andreas Skiadopoulos, Emily E. Moore, Harlan Sayles, Kendra K. Schmid, Nicholas Stergiou Mar 2020

Step Width Variability As A Discriminator Of Age-Related Gait Changes, Andreas Skiadopoulos, Emily E. Moore, Harlan Sayles, Kendra K. Schmid, Nicholas Stergiou

Journal Articles

Background

There is scientific evidence that older adults aged 65 and over walk with increased step width variability which has been associated with risk of falling. However, there are presently no threshold levels that define the optimal reference range of step width variability. Thus, the purpose of our study was to estimate the optimal reference range for identifying older adults with normative and excessive step width variability.

Methods

We searched systematically the BMC, Cochrane Library, EBSCO, Frontiers, IEEE, PubMed, Scopus, SpringerLink, Web of Science, Wiley, and PROQUEST databases until September 2018, and included the studies that measured step width variability …


Self-Talk: Mentoring And Empowering Faculty To Contribute To Organizational Change, Brian Culp Mar 2020

Self-Talk: Mentoring And Empowering Faculty To Contribute To Organizational Change, Brian Culp

Faculty Articles

We can effectively mentor if in possession of qualities to empower mentees, which include: effective communication skills, knowledge of the professional realm, enthusiasm, passion and the ability to create an equitable and supportive organizational environment with the mentee. The authors of this article propose that self-talk (ST) or inner speech is a helpful means of inspiring mentors, colleagues, teachers, and friends in navigating communication challenges with themselves and others. A three-step approach to implementing ST for the purpose of mentoring involves: (1) awareness of the ST they are currently using; (2) follow-up with the mentee’s active reflection of and recording …


A 24 Hour Naproxen Dose On Gastrointestinal Distress And Performance During Cycling In The Heat, Dawn M. Emerson, J Mark Davis, Stephen Cl Chen, Toni M. Torres-Mcgehee, Craig E. Pfeifer, Charles C. Emerson, Joseph D. Bivona, Justin V. Stone Mar 2020

A 24 Hour Naproxen Dose On Gastrointestinal Distress And Performance During Cycling In The Heat, Dawn M. Emerson, J Mark Davis, Stephen Cl Chen, Toni M. Torres-Mcgehee, Craig E. Pfeifer, Charles C. Emerson, Joseph D. Bivona, Justin V. Stone

Faculty Publications

Using a double-blind, randomized and counterbalanced, cross-over design, we assessed naproxen's effects on gastrointestinal (GI) distress and performance in eleven volunteers (6 male, 5 female). Participants completed 4 trials: 1) placebo and ambient); 2) placebo and heat; 3) naproxen and ambient; and 4) naproxen and heat. Independent variables were one placebo or 220 mg naproxen pill every 8 h (h) for 24 h and ambient (22.7 ± 1.8°C) or thermal environment (35.7 ± 1.3°C). Participants cycled 80 min at a steady heart rate then 10 min for maximum distance. Perceived exertion was measured throughout cycling. Gastrointestinal distress was assessed pre-, …


A 4-Year Profile Of Game Demands In Elite Women's Division I College Basketball, Lynda B. Ransdell, Teena Murray, Yong Gao, Paul Jones, Dierdra Bycura Mar 2020

A 4-Year Profile Of Game Demands In Elite Women's Division I College Basketball, Lynda B. Ransdell, Teena Murray, Yong Gao, Paul Jones, Dierdra Bycura

Kinesiology Faculty Publications and Presentations

Workload for a Division I women’s collegiate basketball team (0.817 win percentage) was examined by: (a) season, (b) player position, and (c) game outcome (wins vs. losses). Female athletes (n = 6, mean 19.7 ± 1.5 years, at beginning of study) wore Catapult S5 units during 91.8% of games over a 4-year period. Average PlayerLoad, PlayerLoad per minute (PL·min-1), high inertial movement analysis (high-IMA), and jumps were quantified using Catapult Openfield software (version 1.14.1+). Data were checked for normality and log- or square-root-transformed when they were non-normal. A series of linear mixed model analyses were conducted to …


Locomotor Coordination, Visual Perception And Head Stability During Running, Joseph Hamill, Jongil Lim, Richard Van Emmerik Mar 2020

Locomotor Coordination, Visual Perception And Head Stability During Running, Joseph Hamill, Jongil Lim, Richard Van Emmerik

Kinesiology Faculty Publications (Archived)

Perception and action are coupled such that information from the perceptual system is related to the dynamics of action in order to regulate behavior adaptively. Using running as a model of a cyclic behavior, this coupling involves a continuous, cyclic relationship between the runner’s perception of the environment and the necessary adjustments of the body that ultimately result in a stable pattern of behavior. The purpose of this paper is to illustrate how individuals relate visual perception to rhythmic locomotor coordination patterns in conditions during which foot–ground collisions and visual task demands are altered. We review the findings of studies …


Provider Reported Implementation Of Nutrition-Related Practices In Childcare Centers And Family Childcare Homes In Rural And Urban Nebraska, Dipti A. Dev, Aileen S. Garcia, David A. Dzewaltowski, Susan Sisson, Lisa Franzen-Castle, Zainab Rida, Natalie A. Williams, Carly Hillburn, Danae Dinkel, Deepa Srivastava, Christina Burger, Emily Hulse, Donnia Behrends, Natasha Frost Mar 2020

Provider Reported Implementation Of Nutrition-Related Practices In Childcare Centers And Family Childcare Homes In Rural And Urban Nebraska, Dipti A. Dev, Aileen S. Garcia, David A. Dzewaltowski, Susan Sisson, Lisa Franzen-Castle, Zainab Rida, Natalie A. Williams, Carly Hillburn, Danae Dinkel, Deepa Srivastava, Christina Burger, Emily Hulse, Donnia Behrends, Natasha Frost

Health and Kinesiology Faculty Publications

Approximately 15 million children under age 6 are in childcare settings, offering childcare providers an opportunity to influence children’s dietary intake. Childcare settings vary in organizational structure – childcare centers (CCCs) vs. family childcare homes (FCCHs) – and in geographical location – urban vs. rural. Research on the nutrition-related best practices across these childcare settings is scarce. The objective of this study is to compare nutrition-related best practices of CCCs and FCCHs that participate in the Child and Adult Care Food Program (CACFP) in rural and urban Nebraska. Nebraska providers (urban n = 591; rural n = 579) reported implementation …


The Basics Of Training For Muscle Size And Strength: A Brief Review On The Theory, Samuel L. Buckner, Matthew B. Jessee, Grant J. Mouser, Scott J. Dankel, Kevin T. Mattocks, Zachary W. Bell, Takashi Abe, Jeremy P. Loenneke Mar 2020

The Basics Of Training For Muscle Size And Strength: A Brief Review On The Theory, Samuel L. Buckner, Matthew B. Jessee, Grant J. Mouser, Scott J. Dankel, Kevin T. Mattocks, Zachary W. Bell, Takashi Abe, Jeremy P. Loenneke

Faculty Scholarship

The periodization of resistance exercise is often touted as the most effective strategy for optimizing muscle size and strength adaptations. This narrative persists despite a lack of experimental evidence to demonstrate its superiority. In addition, the general adaptation syndrome, which provides the theoretical framework underlying periodization, does not appear to provide a strong physiological rationale that periodization is necessary. Hans Selye conducted a series of rodent studies which used toxic stressors to facilitate the development of the general adaptation syndrome. To our knowledge, normal exercise in humans has never been shown to produce a general adaptation syndrome. We question whether …


Approaches To Teaching In Kinesiology: Kine 2640 Lesson Plan Outline And Teaching Rubric, Christopher Gentry Feb 2020

Approaches To Teaching In Kinesiology: Kine 2640 Lesson Plan Outline And Teaching Rubric, Christopher Gentry

Q2S Enhancing Pedagogy

As a result of the transformation from Pedagogy to the soon to be titled Physical Education/Adapted Physical Education (PEAPE) concentration in the Kinesiology Department, it was necessary to adjust some classes to fit the needs of our majors. One change was our shift in providing one team sports class KINE 2640 – Teaching/Coaching for Team Sports that covers multiple team sports instead of several classes that covered one sport each. As a result, we streamlined our lesson plan template and teaching rubric to meet the needs of this course and all of our Teaching/Coaching sequence courses. The attached template and …


A Quantitative Comparison Of Arm Activity Between Women With Breast Cancer And Healthy, Mary Insana Fisher, Claire Davies, Timothy L. Uhl Feb 2020

A Quantitative Comparison Of Arm Activity Between Women With Breast Cancer And Healthy, Mary Insana Fisher, Claire Davies, Timothy L. Uhl

Physical Therapy Faculty Publications

Purpose: Survivors of breast cancer (BC) on the non-dominant side have more persistent deficits than those with cancer on the dominant limb. What is not known is whether those with BC use their involved upper limbs more, less, or at the same level as women without BC. Accelerometer use offers a quantifiable method to measure activity levels of upper limbs. The purpose of this study was to quantify the activity levels of the non-dominant involved limb among survivors of BC and compare these values to their dominant limb, as well as the non-dominant limb of a control group.

Methods: Participants …


A Comparison Of Lower Body Power Characteristics Between Collegiate Athletes From Different Competition Levels., Cody A. Stahl, Keston G. Lindsay, J. Bryan Mann, Margaret Hunt, J. Jay Dawes Feb 2020

A Comparison Of Lower Body Power Characteristics Between Collegiate Athletes From Different Competition Levels., Cody A. Stahl, Keston G. Lindsay, J. Bryan Mann, Margaret Hunt, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 13(6): 470-479, 2020. The counter-movement jump (CMJ) is frequently utilized by strength and conditioning professionals working with athletes, given its relationship to a multitude of performance variables associated with success in sports. PURPOSE: To examine characteristics of CMJ performance between NAIA and NCAA Division I male and female athletes. METHODS: Archival data for 275 student athletes from two NCAA Division 1 universities (NCAA DI; males = 84, females = 74) and one NAIA university (NAIA; males = 66, females = 51) were utilized for this analysis. The CMJ was performed utilizing a dual single axis …


Large Inter-Individual Differences In Responses To A Block Of High Intensity Aerobic Interval Training: A Case Series In National-Level Cyclists And Triathletes, Solfrid Bratland-Sanda, Frank G. Pedersen, Marius N. Haave, Jan Helgerud, Øyvind Støren Feb 2020

Large Inter-Individual Differences In Responses To A Block Of High Intensity Aerobic Interval Training: A Case Series In National-Level Cyclists And Triathletes, Solfrid Bratland-Sanda, Frank G. Pedersen, Marius N. Haave, Jan Helgerud, Øyvind Støren

International Journal of Exercise Science

International Journal of Exercise Science 13(2): 480-487, 2020. The aim was to investigate individual responses on VO2maxand performance to a block of high intensity aerobic interval training (HIIT) in national-level endurance athletes. METHODS: National-level cyclists and triathletes (five men and two women, 31 ± 3.3 years, VO2max65.1 ± 3.3 ml·kg-1·min-1) conducted 14 HIIT sessions (4x4 min uphill running at 90-95% maximal heart rate) in nine days during preseason. VO2maxin running and cycling, lactate threshold (LT) in cycling, oxygen cost of cycling (CC), and a cycling time-trial (TT) were …


Comparisons Of The Metabolic Intensities At Heart Rate, Gas Exchange, And Ventilatory Thresholds, Pasquale J. Succi, Taylor K. Dinyer, M. Travis Byrd, Haley C. Bergstrom Feb 2020

Comparisons Of The Metabolic Intensities At Heart Rate, Gas Exchange, And Ventilatory Thresholds, Pasquale J. Succi, Taylor K. Dinyer, M. Travis Byrd, Haley C. Bergstrom

International Journal of Exercise Science

International Journal of Exercise Science 13(2): 455-469, 2020. PURPOSE: This study compared the O2corresponding to the critical heart rate (CHRO2) and the physical working capacity at the heart rate fatigue threshold (PWChrtO2) to the gas exchange threshold (GET), ventilatory threshold (VT), and respiratory compensation point (RCP). METHODS: Nine runners (mean ±SD, age 23 ±3 years) completed an incremental test on a treadmill to determine O2peak, GET, VT, and RCP. The CHRO2and PWChrtO2were determined from 4 separate constant velocity treadmill runs …


Measuring Physical Activity Using Triaxial Wrist Worn Polar Activity Trackers: A Systematic Review, André Henriksen, Jonas Johansson, Gunnar Hartvigsen, Sameline Grimsgaard, Laila A. Hopstock Feb 2020

Measuring Physical Activity Using Triaxial Wrist Worn Polar Activity Trackers: A Systematic Review, André Henriksen, Jonas Johansson, Gunnar Hartvigsen, Sameline Grimsgaard, Laila A. Hopstock

International Journal of Exercise Science

International Journal of Exercise Science 13(4): 438-454, 2020. Collecting objective physical activity data from research participants are increasingly done using consumer-based activity trackers. Several validation studies of Polar devices are conducted to date, but no systematic review of the current level of accuracy for these devices exist. The aim of this study is therefore to investigate the accuracy of current wrist-worn Polar devices that equips a triaxial accelerometer to measure physical activity. We conducted a systematic review by searching six databases for validation studies on modern Polar activity trackers. Studies were grouped and examined by tested outcome, i.e. energy expenditure, …


Step Count Reliability And Validity Of Five Wearable Technology Devices While Walking And Jogging In Both A Free Motion Setting And On A Treadmill, Jeffrey Montes, Richard Tandy, John Young, Szu-Ping Lee, James Navalta Feb 2020

Step Count Reliability And Validity Of Five Wearable Technology Devices While Walking And Jogging In Both A Free Motion Setting And On A Treadmill, Jeffrey Montes, Richard Tandy, John Young, Szu-Ping Lee, James Navalta

International Journal of Exercise Science

International Journal of Exercise Science 13(7): 410-426, 2020. Wearable technology devices are used by millions of people who use daily step counts to promote healthy lifestyles. However, the accuracy of many of these devices has not been determined. The purpose was to determine reliability and validity of the Samsung Gear 2, FitBit Surge, Polar A360, Garmin Vivosmart HR+, and the Leaf Health Tracker when walking and jogging in free motion and treadmill conditions. Forty volunteers completed walking and jogging free motion and treadmill protocols of 5-minute intervals. The devices were worn simultaneously in randomized configurations. The mean of two manual …


Ground Contact Time Imbalances Strongly Related To Impaired Running Economy, Dustin P. Joubert, Nicholas A. Guerra, Eric J. Jones, Erica G. Knowles, Aaron D. Piper Feb 2020

Ground Contact Time Imbalances Strongly Related To Impaired Running Economy, Dustin P. Joubert, Nicholas A. Guerra, Eric J. Jones, Erica G. Knowles, Aaron D. Piper

International Journal of Exercise Science

International Journal of Exercise Science 13(4): 427-437, 2020. Running economy (RE) is defined as the oxygen consumption (VO2) or caloric unit cost required to move at a specific velocity and is an important performance marker. Ground contact time (GCT) has been associated with RE; however, it has not been established how GCT imbalances between feet impact RE. Purpose: Determine the relationship between cadence, GCT, and GCT imbalances and RE. Methods: 11 NCAA Division I distance runners (7 male) completed a graded exercise test on a treadmill to determine lactate threshold (LT) and VO2max. Body composition was …


Reply, Matthew A. Fuglestad, Hernan Hernandez Md, Yue Gao, Henamari Ybay, Molly Schieber, Katyarina E. Brunette, Sara A. Myers, George P. Casale, Iraklis Pipinos Feb 2020

Reply, Matthew A. Fuglestad, Hernan Hernandez Md, Yue Gao, Henamari Ybay, Molly Schieber, Katyarina E. Brunette, Sara A. Myers, George P. Casale, Iraklis Pipinos

Journal Articles

Letter to the editor response


Step Count Reliability And Validity Of Five Wearable Technology Devices While Walking And Jogging In Both A Free Motion Setting And On A Treadmill, Jeffrey Montes, Richard Tandy, John Young, Szu-Ping Lee, James W. Navalta Feb 2020

Step Count Reliability And Validity Of Five Wearable Technology Devices While Walking And Jogging In Both A Free Motion Setting And On A Treadmill, Jeffrey Montes, Richard Tandy, John Young, Szu-Ping Lee, James W. Navalta

Kinesiology and Nutrition Sciences Faculty Research

Wearable technology devices are used by millions of people who use daily step counts to promote healthy lifestyles. However, the accuracy of many of these devices has not been determined. The purpose was to determine reliability and validity of the Samsung Gear 2, FitBit Surge, Polar A360, Garmin Vivosmart HR+, and the Leaf Health Tracker when walking and jogging in free motion and treadmill conditions. Forty volunteers completed walking and jogging free motion and treadmill protocols of 5-minute intervals. The devices were worn simultaneously in randomized configurations. The mean of two manual steps counters was used as the criterion measure. …


Comparison Of Acute Cardiometabolic Responses In A 7-Minute Body Weight Circuit To 7-Minute Hiit Training Protocol, Cruz Armas, Robert J. Kowalsky, Christopher M. Hearon Feb 2020

Comparison Of Acute Cardiometabolic Responses In A 7-Minute Body Weight Circuit To 7-Minute Hiit Training Protocol, Cruz Armas, Robert J. Kowalsky, Christopher M. Hearon

International Journal of Exercise Science

International Journal of Exercise Science 13(2): 395-409, 2020. To investigate the acute cardiometabolic responses of a 7-minute bodyweight resistance exercise circuit (HICE) compared to a 7-minute high intensity interval training cycle protocol (HIIE). Methods: Twelve apparently healthy and active young adults were enrolled in a randomized crossover study (HICE vsHIIE). The 12 HICE exercises used a 30:5 second exercise to rest ratio, followed by a 3-minute cool-down and was replicated in the HIIE cycle protocol. Following each protocol, subjects were seated for the next hour. Measurements included blood pressure (BP) heart rate, blood glucose and triglycerides, taken prior to …