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Articles 91 - 120 of 164

Full-Text Articles in Health and Physical Education

Purposeful Movement: The Integration Of Physical Activity Into A Mathematics Unit, Kailey Snyder, Danae M. Dinkel, Connie Schaffer, Seth Hively, Amanda Colpitts Jan 2017

Purposeful Movement: The Integration Of Physical Activity Into A Mathematics Unit, Kailey Snyder, Danae M. Dinkel, Connie Schaffer, Seth Hively, Amanda Colpitts

Health and Kinesiology Faculty Publications

Classroom physical activity (PA) has been linked to a multitude of health andacademic benefits. However, due to barriers such as lack of time and resourcesmany teachers are not implementing classroom PA to the degree they would liketo. One innovative solution is to integrate classroom PA into academic concepts.Based on self-determination theory, this pilot study evaluated the effectivenessof a teacher-developed purposeful movement teaching strategy on PA, on-taskbehavior and academic achievement. Two third grade classrooms participated inthis pilot study, one acting as the comparison and the other working with theschool Physical Education teacher to develop the active lessons. The evaluationconsisted of accelerometers, …


A Qualitative Exploration Of Former College Student-Athletes’ Wellness, Shane Warehime, Danae Dinkel, Abby Bjornson-Ramig, Ashley J. Blount Jan 2017

A Qualitative Exploration Of Former College Student-Athletes’ Wellness, Shane Warehime, Danae Dinkel, Abby Bjornson-Ramig, Ashley J. Blount

Health and Kinesiology Faculty Publications

College student-athletes (SAs) may experience difficulties while transitioning from college, which could reduce their overall wellness. However, it is essential to understand positive transition experiences and outcomes, as this can guide future research and intervention efforts. The purpose of this study was to explore the factors that led to higher levels of wellness in former SAs. Semi-structured interviews guided by the Indivisible Self Model were completed with former SAs (n = 12). Overall, participants displayed high levels of wellness - most prominently in terms of work and exercise. Many SAs perceived their current wellness was equal, if not better compared …


Leveling The Playing Field: Assessment Of Gross Motor Skills In Low Socioeconomic Children To Their Higher Socioeconomic Counterparts, Megan M. Adkins, Matthew Bice, Danae Dinkel, John P. Rech Jan 2017

Leveling The Playing Field: Assessment Of Gross Motor Skills In Low Socioeconomic Children To Their Higher Socioeconomic Counterparts, Megan M. Adkins, Matthew Bice, Danae Dinkel, John P. Rech

Health and Kinesiology Faculty Publications

Background: Fundamental movements (FM) of children influence the willingness to engage in physical activity (PA). Thus, proper FM skills are the foundation for a lifespan of PA. Objective: This study examined what factors may affect children’s PA in relation to FM pattern capabilities. Methods: The study examined the influence of SES when three low-income schools were provided additional PA opportunities on days PE was not taught. FM patterns in relation to object control (OC) and locomotor skill (LC) development were evaluated on K (n = 871), 1st (n = 893), and 2nd graders (n = 829) using the Test of …


Clinical Measures And Their Contribution To Dysfunction In Individuals With Patellar Tendinopathy, Hyunjae Jeon, Melanie L. Mcgrath, Neal Grandgenett, Adam B. Rosen Jan 2017

Clinical Measures And Their Contribution To Dysfunction In Individuals With Patellar Tendinopathy, Hyunjae Jeon, Melanie L. Mcgrath, Neal Grandgenett, Adam B. Rosen

Health and Kinesiology Faculty Publications

Context: Patellar tendinopathy is prevalent in physically active populations and it affects their quality of living, performance of activity, and may contribute to the early cessation of their athletic careers. A number of previous studies have identified contributing factors for patellar tendinopathy however their contributions to self-reported dysfunction remain unclear.
Objective: The purpose of this investigation was to determine if strength, flexibility, and various lower extremity static alignments contributed to self-reported function and influence the severity of patellar tendinopathy.
Design: Cross sectional research design.
Setting: University Laboratory.
Participants: 30 participants with patellar tendinopathy volunteered for this study (age: 23.4±3.6 years, …


Evidence Of Glycolysis Up-Regulation And Pyruvate Mitochondrial Oxidation Mismatch During Mechanical Unloading Of The Failing Human Heart: Implications For Cardiac Reloading And Conditioning, Nikolaos A. Diakos, Sutip Navankasattusas, E. Dale Abel, Jared Rutter, Lauren Mccreath, Peter Ferrin, Stephen H. Mckellar, Dylan V. Miller, Song-Young Park, Russell S. Richardson, Ralph Deberardinis, James E. Cox, Abdallah G. Kfoury, Craig H. Selzman, Joseph C. Fang, Dean Y. Li, Stavros Drakos Oct 2016

Evidence Of Glycolysis Up-Regulation And Pyruvate Mitochondrial Oxidation Mismatch During Mechanical Unloading Of The Failing Human Heart: Implications For Cardiac Reloading And Conditioning, Nikolaos A. Diakos, Sutip Navankasattusas, E. Dale Abel, Jared Rutter, Lauren Mccreath, Peter Ferrin, Stephen H. Mckellar, Dylan V. Miller, Song-Young Park, Russell S. Richardson, Ralph Deberardinis, James E. Cox, Abdallah G. Kfoury, Craig H. Selzman, Joseph C. Fang, Dean Y. Li, Stavros Drakos

Health and Kinesiology Faculty Publications

This study sought to investigate the effects of mechanical unloading on myocardial energetics and the metabolic perturbation of heart failure (HF) in an effort to identify potential new therapeutic targets that could enhance the unloading-induced cardiac recovery. The authors prospectively examined paired human myocardial tissue procured from 31 advanced HF patients at left ventricular assist device (LVAD) implant and at heart transplant plus tissue from 11 normal donors. They identified increased post-LVAD glycolytic metabolites without a coordinate increase in early, tricarboxylic acid (TCA) cycle intermediates. The increased pyruvate was not directed toward the mitochondria and the TCA cycle for complete …


Wnt5a-Jnk Regulation Of Vascular Insulin Resistance In Human Obesity, Melissa G. Farb, Shakun Karki, Song-Young Park, Samantha M. Saggese, Brian Carmine, Donald T. Hess, Caroline Apovian, Jessica L. Fetterman, Rosa Breton-Romero, Naomi M. Hamburg, Jose J. Fuster, Maria A. Zuriaga, Kenneth Walsh, Noyan Gokce Sep 2016

Wnt5a-Jnk Regulation Of Vascular Insulin Resistance In Human Obesity, Melissa G. Farb, Shakun Karki, Song-Young Park, Samantha M. Saggese, Brian Carmine, Donald T. Hess, Caroline Apovian, Jessica L. Fetterman, Rosa Breton-Romero, Naomi M. Hamburg, Jose J. Fuster, Maria A. Zuriaga, Kenneth Walsh, Noyan Gokce

Health and Kinesiology Faculty Publications

Obesity is associated with the development of vascular insulin resistance; however, pathophysiological mechanisms are poorly understood. We sought to investigate the role of WNT5A-JNK in the regulation of insulin-mediated vasodilator responses in human adipose tissue arterioles prone to endothelial dysfunction. In 43 severely obese (BMI 44±11 kg/m2) and five metabolically normal non-obese (BMI 26±2 kg/m2) subjects, we isolated arterioles from subcutaneous and visceral fat during planned surgeries. Using videomicroscopy, we examined insulin-mediated, endothelium-dependent vasodilator responses and characterized adipose tissue gene and protein expression using real-time polymerase chain reaction and Western blot analyses. Immunofluorescence was used to quantify endothelial nitric oxide …


Accuracy And Precision Of Quantitative 31p-Mrs Measurements Of Human Skeletal Muscle Mitochondrial Function, Gwenael Layec, J. R. Gifford, Joel D. Trinity, Corey R. Hart, Ryan S. Garten, Song-Young Park, Yann Le Fur, Eun-Kee Jeong, Russell S. Richardson Jul 2016

Accuracy And Precision Of Quantitative 31p-Mrs Measurements Of Human Skeletal Muscle Mitochondrial Function, Gwenael Layec, J. R. Gifford, Joel D. Trinity, Corey R. Hart, Ryan S. Garten, Song-Young Park, Yann Le Fur, Eun-Kee Jeong, Russell S. Richardson

Health and Kinesiology Faculty Publications

Although theoretically sound, the accuracy and precision of 31P-magnetic resonance spectroscopy (31P-MRS) approaches to quantitatively estimate mitochondrial capacity are not well documented. Therefore, employing four differing models of respiratory control [linear, kinetic, and multipoint adenosine diphosphate (ADP) and phosphorylation potential], this study sought to determine the accuracy and precision of 31P-MRS assessments of peak mitochondrial adenosine-triphosphate (ATP) synthesis rate utilizing directly measured peak respiration (State 3) in permeabilized skeletal muscle fibers. In 23 subjects of different fitness levels, 31P-MRS during a 24-s maximal isometric knee extension and high-resolution respirometry in muscle fibers from the vastus lateralis was performed. Although significantly …


Mitochondrial Function In Heart Failure: The Impact Of Ischemic And Non-Ischemic Etiology, Song-Young Park, Joel D. Trinity, J. R. Gifford, Nikolaos A. Diakos, Lauren Mccreath, Stavros Drakos, Russell S. Richardson Jul 2016

Mitochondrial Function In Heart Failure: The Impact Of Ischemic And Non-Ischemic Etiology, Song-Young Park, Joel D. Trinity, J. R. Gifford, Nikolaos A. Diakos, Lauren Mccreath, Stavros Drakos, Russell S. Richardson

Health and Kinesiology Faculty Publications

Background

Although cardiac mitochondrial dysfunction is associated with heart failure (HF), this is a complex syndrome with two predominant etiologies, ischemic HF (iHF) and non-ischemic HF (niHF), and the exact impact of mitochondrial dysfunction in these two distinct forms of HF is unknown.

Methods and results

To determine the impact of HF etiology on mitochondrial function, respiration was measured in permeabilized cardiac muscle fibers from patients with iHF (n = 17), niHF (n = 18), and healthy donor hearts (HdH). Oxidative phosphorylation capacity (OXPHOS), assessed as state 3 respiration, fell progressively from HdH to niHF, to iHF (Complex I + …


Impact Of Aerobic And Anaerobic Exercise Training On Oxidative Stress And Antioxidant Defense In Athletes, Song-Young Park, Yi Sub Kwak Apr 2016

Impact Of Aerobic And Anaerobic Exercise Training On Oxidative Stress And Antioxidant Defense In Athletes, Song-Young Park, Yi Sub Kwak

Health and Kinesiology Faculty Publications

Exercise mediates an excessive free radical production leading to oxidative stress (OS). The body has natural antioxidant systems that help decrease OS, and these systems may be enhanced with exercise training. However, only a few studies have investigated the differences in resting OS and antioxidant capacity (AOC) between aerobically trained athletes (ET), anaerobically trained athletes (RT), and untrained individuals (UT). Therefore, this study sought to investigate the resting and postexercise OS and AOC in ET, RT, and UT. Sixty healthy young males (26.6±0.8 yr) participated in this study. Subjects were divided into three groups, ET, RT, and UT by distinct …


How Accurate Are The Wrist-Based Heart Rate Monitors During Walking And Running Activities? Are They Accurate Enough?, Sarah E. Stahl, Hyun-Sung An, Danae M. Dinkel, John M. Noble, Jung-Min Lee Apr 2016

How Accurate Are The Wrist-Based Heart Rate Monitors During Walking And Running Activities? Are They Accurate Enough?, Sarah E. Stahl, Hyun-Sung An, Danae M. Dinkel, John M. Noble, Jung-Min Lee

Health and Kinesiology Faculty Publications

Background Heart rate (HR) monitors are valuable devices for fitness-orientated individuals. There has been a vast influx of optical sensing blood flow monitors claiming to provide accurate HR during physical activities. These monitors are worn on the arm and wrist to detect HR with photoplethysmography (PPG) techniques. Little is known about the validity of these wearable activity trackers.

Aim Validate the Scosche Rhythm (SR), Mio Alpha (MA), Fitbit Charge HR (FH), Basis Peak (BP), Microsoft Band (MB), and TomTom Runner Cardio (TT) wireless HR monitors.

Methods 50 volunteers (males: n=32, age 19–43 years; females: n=18, age 19–38 years) participated. All …


Exercise Training Improves Vascular Mitochondrial Function, Song-Young Park, Matthew J. Rossman, J. R. Gifford, Leena P. Bharath, Johann Bauersachs, Russell S. Richardson, E. Dale Abel, J. David Symons, Christian Riehle Apr 2016

Exercise Training Improves Vascular Mitochondrial Function, Song-Young Park, Matthew J. Rossman, J. R. Gifford, Leena P. Bharath, Johann Bauersachs, Russell S. Richardson, E. Dale Abel, J. David Symons, Christian Riehle

Health and Kinesiology Faculty Publications

Exercise training is recognized to improve cardiac and skeletal muscle mitochondrial respiratory capacity; however, the impact of chronic exercise on vascular mitochondrial respiratory function is unknown. We hypothesized that exercise training concomitantly increases both vascular mitochondrial respiratory capacity and vascular function. Arteries from both sedentary (SED) and swim-trained (EX, 5 wk) mice were compared in terms of mitochondrial respiratory function, mitochondrial content, markers of mitochondrial biogenesis, redox balance, nitric oxide (NO) signaling, and vessel function. Mitochondrial complex I and complex I + II state 3 respiration and the respiratory control ratio (complex I + II state 3 respiration/complex I state …


Impact Of Age On The Vasodilatory Function Of Human Skeletal Muscle Feed Arteries, Song-Young Park, S. J. Ives, J. R. Gifford, R. H. I. Andtbacka, John R. Hyngstrom, Van Reese, Gwenael Layec, Leena P. Bharath, J. David Symons, Russell S. Richardson Jan 2016

Impact Of Age On The Vasodilatory Function Of Human Skeletal Muscle Feed Arteries, Song-Young Park, S. J. Ives, J. R. Gifford, R. H. I. Andtbacka, John R. Hyngstrom, Van Reese, Gwenael Layec, Leena P. Bharath, J. David Symons, Russell S. Richardson

Health and Kinesiology Faculty Publications

Although advancing age is often associated with attenuated skeletal muscle blood flow and skeletal muscle feed arteries (SMFAs) have been recognized to play a regulatory role in the vasculature, little is known about the impact of age on the vasodilatory capacity of human SMFAs. Therefore, endothelium-dependent and -independent vasodilation were assessed in SMFAs (diameter: 544 ± 63 μm) obtained from 24 (equally represented) young (33 ± 2 yr) and old (71 ± 2 yr) subjects in response to three stimuli: 1) flow-induced shear stress, 2) ACh, and 3) sodium nitropusside (SNP). Both assessments of endothelium-dependent vasodilation, flow …


Validity Of Wearable Fitness Trackers On Sleep Measure, Alyssa Keill Jan 2016

Validity Of Wearable Fitness Trackers On Sleep Measure, Alyssa Keill

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) …


Examining The Validity Of Fitbit Charge Hr Tm For Measuring Heart Rate In Free-Living Conditions, Jung-Min Lee, Hyun-Sung An, Seoung-Ki Kang, Youngdeok Kim Jan 2016

Examining The Validity Of Fitbit Charge Hr Tm For Measuring Heart Rate In Free-Living Conditions, Jung-Min Lee, Hyun-Sung An, Seoung-Ki Kang, Youngdeok Kim

Research Presentations

Optical blood flow sensors (i.e. photoplethysmographic techniques) have recently been utilized in wearable activity trackers. The Fitbit Charge HRTM (FBHR) is one of the widely recognized wearable activity trackers that utilizes Fitbit’s proprietary PurePulse optical heart rate (HR) technology to automatically measure wrist-based HR. Despite its increasing popularity, however, no study to date has addressed the validity of FBHR for measuring HR in free-living conditions. PURPOSE: The purpose of this study was to examine the validity of FBHR for measuring HR using a chest strap Polar HR monitor (PHR) as a reference measure in free-living conditions. METHODS: Ten …


Effects Of Whole Body Vibration Training On Body Composition, Skeletal Muscle Strength, And Cardiovascular Health, Song-Young Park, Won-Mok Son, Oh-Sung Kwon Dec 2015

Effects Of Whole Body Vibration Training On Body Composition, Skeletal Muscle Strength, And Cardiovascular Health, Song-Young Park, Won-Mok Son, Oh-Sung Kwon

Health and Kinesiology Faculty Publications

Whole body vibration training (WBVT) has been used as a supplement to conventional exercise training such as resistance exercise training to improve skeletal muscle strength, specifically, in rehabilitation field. Recently, this exercise modality has been utilized by cardiovascular studies to examine whether WBVT can be a useful exercise modality to improve cardiovascular health. These studies reported that WBVT has not only beneficial effects on muscular strength but also cardiovascular health in elderly and disease population. However, its mechanism underlying the beneficial effects of WBVT in cardiovascular health has not been well documented. Therefore, this review highlighted the impacts of WBVT …


The Effects Of Aerobic Exercise Training On Blood Lipid Profiles, Fibrinolytic Activities, And Nitric Oxide Levels In High-Fat-Diet Induced Rats, Won-Mok Son, Do-Yeon Kim, Ki-Dong Sung, Yi Sub Kwak, Yeong Ho Baek, Song-Young Park Dec 2015

The Effects Of Aerobic Exercise Training On Blood Lipid Profiles, Fibrinolytic Activities, And Nitric Oxide Levels In High-Fat-Diet Induced Rats, Won-Mok Son, Do-Yeon Kim, Ki-Dong Sung, Yi Sub Kwak, Yeong Ho Baek, Song-Young Park

Health and Kinesiology Faculty Publications

Although exercise training has been utilized to improve vascular function in animals and humans, the impact of moderate intensity exercise training on fibrinolytic activities and nitric oxide (NO) bioavailability has not been well documented. Therefore, the purpose of the current study was to examine the impact of moderate intensity aerobic exercise training on fat mass, blood lipid profiles, fibrinolytic activity, and NO levels in high-fat-diet induced rats. The body weight, fat mass, blood lipid profiles, fibrinolytic activity, and nitrite/nitrate were measured pre- and postexercise (10 weeks) training. The body weight and fat mass reduced significantly in the exercise (EX) group …


The Clinical Evaluation Between Overtraining Syndrome And Exercise-Related Immunity, Song-Young Park, Yi Sub Kwak, Seung-Jun Choi Nov 2015

The Clinical Evaluation Between Overtraining Syndrome And Exercise-Related Immunity, Song-Young Park, Yi Sub Kwak, Seung-Jun Choi

Health and Kinesiology Faculty Publications

The present study was performed to analyze and review the physical and immune responses to overtraining syndrome in humans. Overreaching refers to the initial phage of overtraining syndrome and has been known as a physical fatigue which is mainly from metabolic imbalance. It has been known that overtraining also results in a loss of adaptability which may lead to an attenuation of exercise performance, sleeping disorder, central fatigue, neurohormonal changes, difficulty recovery to physical stress, and immunological changes. Additionally, overtraining syndrome is characterized by persistent fatigue, poor performance in sport due to the prolonged and strenuous physical training. Also, previous …


Quadriceps Exercise Intolerance In Patients With Chronic Obstructive Pulmonary Disease: The Potential Role Of Altered Skeletal Muscle Mitochondrial Respiration, J. R. Gifford, Joel D. Trinity, Gwenael Layec, Ryan S. Garten, Song-Young Park, Matthew J. Rossman, Steen Larsen, Flemming Dela, Russell S. Richardson Oct 2015

Quadriceps Exercise Intolerance In Patients With Chronic Obstructive Pulmonary Disease: The Potential Role Of Altered Skeletal Muscle Mitochondrial Respiration, J. R. Gifford, Joel D. Trinity, Gwenael Layec, Ryan S. Garten, Song-Young Park, Matthew J. Rossman, Steen Larsen, Flemming Dela, Russell S. Richardson

Health and Kinesiology Faculty Publications

This study sought to determine if qualitative alterations in skeletal muscle mitochondrial respiration, associated with decreased mitochondrial efficiency, contribute to exercise intolerance in patients with chronic obstructive pulmonary disease (COPD). Using permeabilized muscle fibers from the vastus lateralis of 13 patients with COPD and 12 healthy controls, complex I (CI) and complex II (CII)-driven State 3 mitochondrial respiration were measured separately (State 3:CI and State 3:CII) and in combination (State 3:CI+CII). State 2 respiration was also measured. Exercise tolerance was assessed by knee extensor exercise (KE) time to fatigue. Per milligram of muscle, State 3:CI+CII and State 3:CI were reduced …


Low Intensity Resistance Exercise Training With Blood Flow Restriction: Insight Into Cardiovascular Function, And Skeletal Muscle Hypertrophy In Humans, Song-Young Park, Yi Sub Kwak, Andrew Harveson, Joshua C. Weavil, Kook E. Seo Apr 2015

Low Intensity Resistance Exercise Training With Blood Flow Restriction: Insight Into Cardiovascular Function, And Skeletal Muscle Hypertrophy In Humans, Song-Young Park, Yi Sub Kwak, Andrew Harveson, Joshua C. Weavil, Kook E. Seo

Health and Kinesiology Faculty Publications

Attenuated functional exercise capacity in elderly and diseased populations is a common problem, and stems primarily from physical inactivity. Decreased function and exercise capacity can be restored by maintaining muscular strength and mass, which are key factors in an independent and healthy life. Resistance exercise has been used to prevent muscle loss and improve muscular strength and mass. However, the intensities necessary for traditional resistance training to increase muscular strength and mass may be contraindicated for some at risk populations, such as diseased populations and the elderly. Therefore, an alternative exercise modality is required. Recently, blood flow restriction (BFR) with …


Validity Of Optical Blood Flow Heart Rate Monitors, Nicholas Dinan, Hyun-Sung An, Matthew Bubak, Danae M. Dinkel, Jung-Min Lee Jan 2015

Validity Of Optical Blood Flow Heart Rate Monitors, Nicholas Dinan, Hyun-Sung An, Matthew Bubak, Danae M. Dinkel, Jung-Min Lee

Research Presentations

PURPOSE: Validate the Schoche (SC) (RhythmTM), Basis B1 Band (BB) (BASIS Science, Inc.), and Mio Alpha (MA) (Physical Enterprises, Inc.) wireless heart rate monitors. METHODS: Fifteen college students (males, n=11, age=27±5yrs; females, n=4, age=27±6yrs) participated. All participants simultaneously wore the SC on left forearm, the BB on the right wrist, the MA on the left wrist, and Polar HR strap on their chest. Participants’ resting heart rate was measured twice prior to exercise. The exercise protocol consisted of one 30-minute bout of continuous walking and running in which the treadmill speed increased every 5-minutes. The treadmill started at 2 …


How Accurate Are Wearable Activity Trackers For Measuring Steps?, Jung-Min Lee, Gregory Jones, Hyun-Sung An, Jungyoon Kim, Danae M. Dinkel Jan 2015

How Accurate Are Wearable Activity Trackers For Measuring Steps?, Jung-Min Lee, Gregory Jones, Hyun-Sung An, Jungyoon Kim, Danae M. Dinkel

Research Presentations

Wearable activity trackers have become popular for tracking individual’s daily physical activity, but little or no information is available to substantiate the validity of these devices in step counts. PURPOSE: The purpose of this study was to systemically examine the validity of newly developed wearable activity trackers for measuring steps compared to the criterion measure (hand tally) in two different conditions. METHODS: Twenty (28.2±4.8 years) healthy males (n=19) and females (n=17) participated in the study. The participants were fitted with eight wearable activity trackers while walking and running on a treadmill (speeds of 2, 2.5, 3, 3.5, 4, …


Validity Of Wearable Physical Activity Monitors During Activities Of Daily Living, Skyler Brooke, Hyun-Sung An, Danae M. Dinkel, John M. Noble, Jung-Min Lee Jan 2015

Validity Of Wearable Physical Activity Monitors During Activities Of Daily Living, Skyler Brooke, Hyun-Sung An, Danae M. Dinkel, John M. Noble, Jung-Min Lee

Research Presentations

PURPOSE: To evaluate the validity of wearable activity monitors in SPT and EE under free-living environment.

PURPOSE: To evaluate the validity of wearable activity monitors in SPT and EEunder free-living environment. METHODS: Thirty-nine (24.9+5.4 years) healthymales (n=26) and females (n=11) participated in this study. Total SPT and EE weremeasured by eight monitors; Nike+Fuel Band SE (NFB), Garmin VivoFit (VF), MisfitShine (MF), Fitbit Flex (FF), Jawbone UP (JU), Basis B1 (BB1), Polar Loop (PL), andSense Wear Armband Mini (SWA). The monitors were worn for at least 23 hours to beincluded in final data analysis and no PA restriction was applied. The …


Validity Of Wearable Activity Monitors For Estimation Of Resting Energy Expenditure In Adults, Zachary Motz, Yang Bail, Youngwon Kim, Danae M. Dinkel, Jung-Min Lee Jan 2015

Validity Of Wearable Activity Monitors For Estimation Of Resting Energy Expenditure In Adults, Zachary Motz, Yang Bail, Youngwon Kim, Danae M. Dinkel, Jung-Min Lee

Research Presentations

• Wearable accelerometers have become the standard method for assessing physical activity for both individuals and field-based research [1]. These new devices allow consumers to have the ability to estimate total energy expenditure and track it over time. • Resting Energy Expenditure plays a critical role in estimating daily total energy expenditure as it contributes 60-70% of total energy expenditure [2,3]. • Little to no information is available to substantiate the validity of these consumer-based activity monitors under free-living conditions.


Validity Of The Ihealth-Bp7 And Withings-Bp800 Self Measurement Blood Pressure Monitor, Hyun-Sung An, Matthew Bubak, Danae M. Dinkel, Dustin Slivka, Jung-Min Lee Jan 2015

Validity Of The Ihealth-Bp7 And Withings-Bp800 Self Measurement Blood Pressure Monitor, Hyun-Sung An, Matthew Bubak, Danae M. Dinkel, Dustin Slivka, Jung-Min Lee

Research Presentations

PURPOSE: The purpose of this study is to validate the iHealth-BP7 and Withings-BP800 monitors according to the European Society of Hypertension (ESH) International Protocol revision 2010. METHODS: Data from 11 participants (31.6 ± 2.2 years) were initially examined according to the ESH International Protocol for the validation of BP measuring devices. Participants were asked to sit and relax for 10-15 mins with legs uncrossed, and back supported prior to the test. In all participants, sequential left arm measurements were performed by two trained observers using a mercury sphygmomanometer and one supervisor using the device. Collected data were screened …


Physical Activity Recognition Based On Rotated Acceleration Data Using Orientation Filter, Woohyuk Choi, Youngeun Shin, Jung-Min Lee, Taemin Shin Jan 2015

Physical Activity Recognition Based On Rotated Acceleration Data Using Orientation Filter, Woohyuk Choi, Youngeun Shin, Jung-Min Lee, Taemin Shin

Research Presentations

The purpose of the study was to examine the accuracy of physical activity (PA) classification algorithms using a rotational analysis.


Α1- And Α2-Adrenergic Responsiveness In Human Skeletal Muscle Feed Arteries: The Role Of Trpv Ion Channels In Heat-Induced Sympatholysis, J. R. Gifford, S. J. Ives, Song-Young Park, R. H. I. Andtbacka, John R. Hyngstrom, Michelle T. Mueller, Gerald S. Treinman, Christopher Ward, Joel D. Trinity, Russell S. Richardson Nov 2014

Α1- And Α2-Adrenergic Responsiveness In Human Skeletal Muscle Feed Arteries: The Role Of Trpv Ion Channels In Heat-Induced Sympatholysis, J. R. Gifford, S. J. Ives, Song-Young Park, R. H. I. Andtbacka, John R. Hyngstrom, Michelle T. Mueller, Gerald S. Treinman, Christopher Ward, Joel D. Trinity, Russell S. Richardson

Health and Kinesiology Faculty Publications

The purpose of this study was to determine if heat inhibits α2-adrenergic vasocontraction, similarly to α1-adrenergic contraction, in isolated human skeletal muscle feed arteries (SMFA) and elucidate the role of the temperature-sensitive vanilloid-type transient receptor potential (TRPV) ion channels in this response. Isolated SMFA from 37 subjects were studied using wire myography. α1 [Phenylephrine (PE)]- and α2 [dexmedetomidine (DEX)]-contractions were induced at 37 and 39°C with and without TRPV family and TRPV4-specific inhibition [ruthenium red (RR) and RN-1734, respectively]. Endothelial function [acetylcholine (ACh)] and smooth muscle function [sodium nitroprusside (SNP) and potassium chloride (KCl)] were also assessed under these conditions. …


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 Sep 2014

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 …


Cardiac, Skeletal, And Smooth Muscle Mitochondrial Respiration: Are All Mitochondria Created Equal?, Song-Young Park, J. R. Gifford, R. H. I. Andtbacka, Joel D. Trinity, John R. Hyngstrom, Ryan S. Garten, Nikolaos A. Diakos, S. J. Ives, Flemming Dela, Steen Larsen, Stavros Drakos, Russell S. Richardson Aug 2014

Cardiac, Skeletal, And Smooth Muscle Mitochondrial Respiration: Are All Mitochondria Created Equal?, Song-Young Park, J. R. Gifford, R. H. I. Andtbacka, Joel D. Trinity, John R. Hyngstrom, Ryan S. Garten, Nikolaos A. Diakos, S. J. Ives, Flemming Dela, Steen Larsen, Stavros Drakos, Russell S. Richardson

Health and Kinesiology Faculty Publications

Unlike cardiac and skeletal muscle, little is known about vascular smooth muscle mitochondrial respiration. Therefore, the present study examined mitochondrial respiratory rates in smooth muscle of healthy human feed arteries and compared with that of healthy cardiac and skeletal muscles. Cardiac, skeletal, and smooth muscles were harvested from a total of 22 subjects (53 ± 6 yr), and mitochondrial respiration was assessed in permeabilized fibers. Complex I + II, state 3 respiration, an index of oxidative phosphorylation capacity, fell progressively from cardiac to skeletal to smooth muscles (54 ± 1, 39 ± 4, and 15 ± 1 pmol·s−1·mg−1, P < 0.05, respectively). Citrate synthase (CS) activity, an index of mitochondrial density, also fell progressively from cardiac to skeletal to smooth muscles (222 ± 13, 115 ± 2, and 48 ± 2 μmol·g−1·min−1, P …


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 Apr 2014

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 …


Non-Overweight And Overweight Children’S Physical Activity During School Recess, Nicola D. Ridgers, Pedro F. Saint-Maurice, Gregory J. Welk, Mohammed Siahpush, Jennifer L. Huberty Mar 2014

Non-Overweight And Overweight Children’S Physical Activity During School Recess, Nicola D. Ridgers, Pedro F. Saint-Maurice, Gregory J. Welk, Mohammed Siahpush, Jennifer L. Huberty

Health and Kinesiology Faculty Publications

Objective: Little research has investigated children’s physical activity levels during school recess and the contribution of recess to school day physical activity levels by weight status. The aims of this study were to examine non-overweight and overweight children’s physical activity levels during school recess, and examine the contribution of recess to school day physical activity.

Design: Cross-sectional.

Setting: Four elementary schools located in Nebraska, United States of America (USA).

Methods: Two hundred and seventeen children (99 boys, 118 girls; 47.9% overweight) wore a uni-axial accelerometer for five consecutive school days during autumn 2009. The proportion of …