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On The Calculation Of Sample Entropy Using Continuous And Discrete Human Gait Data, John D. McCamley, William Denton, Peter C. Raffalt, Jennifer M. Yentes 2018 MORE Foundation

On The Calculation Of Sample Entropy Using Continuous And Discrete Human Gait Data, John D. Mccamley, William Denton, Peter C. Raffalt, Jennifer M. Yentes

Journal Articles

Sample entropy (SE) has relative consistency using biologically-derived, discrete data >500 data points. For certain populations, collecting this quantity is not feasible and continuous data has been used. The effect of using continuous versus discrete data on SE is unknown, nor are the relative effects of sampling rate and input parameters m (comparison vector length) and r(tolerance). Eleven subjects walked for 10-minutes and continuous joint angles (480 Hz) were calculated for each lower-extremity joint. Data were downsampled (240, 120, 60 Hz) and discrete range-of-motion was calculated. SE was quantified for angles and range-of-motion at all sampling rates and multiple ...


A Study Into The Reliability Of The Data Flow From Gps Enabled Portable Fitness Devices To The Internet, Philip Shambrook, Patrick J. Lander PhD, Olivia Maclaren 2018 Eastern Institute of Technology (EIT)

A Study Into The Reliability Of The Data Flow From Gps Enabled Portable Fitness Devices To The Internet, Philip Shambrook, Patrick J. Lander Phd, Olivia Maclaren

International Journal of Exercise Science

International Journal of Exercise Science 11(7): 1184-1193, 2018. The growth in availability and affordability of portable fitness devices (PFDs) has facilitated a concomitant growth in the collection and sharing of what are assumed to be reliable measures of exercise and physical activity. This data is increasingly used by fitness trainers to track performance progression, and plan training. Whilst the reliability and validity of these devices has been reported, investigation into the variance in the data at different access points is less well examined. The aim of this study was to investigate the reliability of the data flow from global ...


Stride-To-Stride Fluctuations In Transtibial Amputees Are Not Affected By Changes In Push-Off Mechanics From Using Different Prostheses, Chase G. Rock, Shane R. Wurdeman, Nicholas Stergiou, Kota Z. Takahashi 2018 University of Nebraska at Omaha

Stride-To-Stride Fluctuations In Transtibial Amputees Are Not Affected By Changes In Push-Off Mechanics From Using Different Prostheses, Chase G. Rock, Shane R. Wurdeman, Nicholas Stergiou, Kota Z. Takahashi

Journal Articles

Stride-to-stride fluctuations of joint kinematics during walking reflect a highly structured organization that is characteristic of healthy gait. The organization of stride-to-stride fluctuations is disturbed in lower-limb prosthesis users, yet the factors contributing to this difference are unclear. One potential contributor to the changes in stride-to-stride fluctuations is the altered push-off mechanics experienced by passive prosthesis users. The purpose of our study was to determine if changes in push-off mechanics affect stride-to-stride fluctuations in transtibial amputees. Twenty-two unilateral transtibial amputees were enrolled in the 6- week cross-over study, where High and Low Activity (based on the Medicare Functional Classification System ...


Junshi Liu E00448967 2018fall Dissertation.Pdf, Junshi Liu 2018 East Tennessee State University

Junshi Liu E00448967 2018fall Dissertation.Pdf, Junshi Liu

Junshi Liu

No abstract provided.


Effects Of Changing The Focus Of Attention On Accuracy, Acceleration, And Electromyography In Dart Throwing, Dakota R. Hitchcock, David E. Sherwood 2018 University of Colorado, Boulder

Effects Of Changing The Focus Of Attention On Accuracy, Acceleration, And Electromyography In Dart Throwing, Dakota R. Hitchcock, David E. Sherwood

International Journal of Exercise Science

International Journal of Exercise Science 11(1): 1120-1135, 2018. Research over the past 15 years or so has shown that an external focus on the effects of one’s movements improves performance relative to an internal focus of attention on bodily actions. More recent research has attempted to discover how the focus of attention (FOA) influences underlying motor control processes by using kinematic and EMG measures. Research has shown that an external FOA reduces EMG activity and the co-contraction between agonist and antagonist muscle groups relative to an internal FOA. The primary goal of the current study was to determine ...


The Predictability Of Peak Oxygen Consumption Using Submaximal Ratings Of Perceived Exertion In Adolescents, Danilo V. Tolusso, Ward C. Dobbs, Michael Esco 2018 University of Alabama

The Predictability Of Peak Oxygen Consumption Using Submaximal Ratings Of Perceived Exertion In Adolescents, Danilo V. Tolusso, Ward C. Dobbs, Michael Esco

International Journal of Exercise Science

International Journal of Exercise Science 11(4): 1173-1183, 2018. Rating of perceived exertion (RPE) extrapolation involves mathematically extending the submaximal relationship between RPE and oxygen consumption (VO2) to maximal intensity. This technique allows practitioners to forego, potentially dangerous, maximal exertion testing while attaining accurate measures of maximal oxygen consumption used for exercise prescription. This method has been proven accurate in adults, but much less in known when applied to an adolescent population. The purpose of this study was to assess the accuracy of the RPE extrapolation as method for estimating VO2max in adolescents. Twenty-two healthy, asymptomatic adolescents performed ...


Characterizing The Aerobic And Anaerobic Energy Costs Of Polynesian Dances, Wei Zhu, David E. Lankford, Joel Reece, Daniel P. Heil 2018 Montana State University - Bozeman

Characterizing The Aerobic And Anaerobic Energy Costs Of Polynesian Dances, Wei Zhu, David E. Lankford, Joel Reece, Daniel P. Heil

International Journal of Exercise Science

International Journal of Exercise Science 11(4): 1156-1172, 2018. This study characterized both aerobic and anaerobic energy expenditure (EE) for several Polynesian dances in a group of experienced professional Polynesian dancers. Thirteen men and 17 women were tested using indirect calorimetry to assess aerobic EE (and converted to METs), and fingertip blood lactate to estimate anaerobic EE, during both resting and dancing activities. Total EE was then computed as the sum of both aerobic and anaerobic activity energy expenditure (AEE, or EE above resting). One sample t-tests compared mean MET values for each type of dance to the 3-MET and ...


Foot-To-Foot Bioelectrical Impedance, Air Displacement Plethysmography, And Dual Energy X-Ray Absorptiometry In Resistance-Trained Men And Women, Justin Merrigan, Sina Gallo PhD, Jennifer Fields, Margaret T. Jones PhD 2018 George Mason University

Foot-To-Foot Bioelectrical Impedance, Air Displacement Plethysmography, And Dual Energy X-Ray Absorptiometry In Resistance-Trained Men And Women, Justin Merrigan, Sina Gallo Phd, Jennifer Fields, Margaret T. Jones Phd

International Journal of Exercise Science

International Journal of Exercise Science 11(4): 1145-1155, 2018. Accurate assessment of body composition is important to athletic performance goal setting and nutritional program design. Dual-energy x-ray absorptiometry (DXA) is considered the “gold standard” in body composition assessment, yet the cost renders DXA unfeasible for many. Therefore, it is of interest to compare other body composition assessment methods to DXA in resistance-trained individuals whose focus is athletic performance. The purpose of the current study was to determine the agreement in estimates of body composition ((body fat (BF%); fat mass (FM); fat free mass (FFM)) by bioelectrical impedance analysis (BIA; Tanita ...


The Influence Of Tissue Plasminogen Activator I/D Polymorphism On The Tpa Response To Exercise, Adam M. Coughlin 2018 Saginaw Valley State University

The Influence Of Tissue Plasminogen Activator I/D Polymorphism On The Tpa Response To Exercise, Adam M. Coughlin

International Journal of Exercise Science

International Journal of Exercise Science 11(3): 1136-1144, 2018. The purpose was to determine if the Alu-insertion (I)/deletion (D) polymorphism of the tissue plasminogen activator (tPA) gene influences the tPA response to maximal exercise. Fifty male subjects (age = 23.6 ± 4.7 yrs) completed a maximal treadmill exercise test. Blood samples were drawn before and immediately after exercise for determination of plasma tPA antigen and activity. Isolated DNA was amplified via polymerase chain reaction, electrophoresed, and visually amplified to determine tPA genotype. Subjects were classified as possessing the D allele (D) (n = 28) or being homozygous for the I ...


Effects Of Compex As A Warm Up For Glenohumeral Range Of Motion, Melissa Ericson, Elizabeth R. Neil, Kenneth E. Games 2018 Hardin-Simmons University

Effects Of Compex As A Warm Up For Glenohumeral Range Of Motion, Melissa Ericson, Elizabeth R. Neil, Kenneth E. Games

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

Purpose: Research regarding proper upper extremity warm-up protocols remains inconclusive, especially for electrical stimulation methods like the Compex Sport Elite® unit. The purpose of this study is to evaluate the acute effects of a single treatment of the Compex® using the pre-warm-up protocol on glenohumeral range of motion compared to a standardized upper body ergometer (UBE) warm-up protocol. Methods: Thirty-five healthy, young adults completed the study (19 men, 16 women; age=22±2y; height=172.1±9.4cm; mass=71.3±16.1kg; right-hand dominant=28; left-hand dominant=7). Participants came to the research laboratory on two occasions, at least ...


Effect Of Ankle Taping On Dynamic Balance And Perception Of Stability, William S. Gear, Megan J. Lundstrom 2018 New Mexico State University

Effect Of Ankle Taping On Dynamic Balance And Perception Of Stability, William S. Gear, Megan J. Lundstrom

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

Purpose: The purpose of this study was to examine the actual and perceived effect of taping on dynamic stability. Methods: 21 physically active subjects [12 females (age = 20.33 ± 1.44 years, height = 165 ± 0.05 cm, mass = 68.76 ± 12.69 kg), and 9 males (age = 21.33 ± 1.66 years, height = 180 ± 0.10 cm, mass = 86.54 ± 9.46 kg)] participated in this study. Dynamic stability and perception of stability were assessed barefoot and with the ankle taped. The taped ankle condition used a standard preventive tape application including two anchors, three stirrups, close downs, horseshoes, two ...


From The Editors: A Guide For Peer Review In The Field Of Exercise Science, Whitley J. Stone, James W. Navalta, Scott Lyons, Mark A. Schafer 2018 University of Central Missouri

From The Editors: A Guide For Peer Review In The Field Of Exercise Science, Whitley J. Stone, James W. Navalta, Scott Lyons, Mark A. Schafer

International Journal of Exercise Science

International Journal of Exercise Science 11(1): 1112-1119, 2018. Since its inception, the mission of the International Journal of Exercise Science (IJES) has been to engage student researchers, to provide an outlet for peer-review and possible publication of their work, and to grant an opportunity for them to gain experience as peer-reviewers. The Editors of IJES take pride in providing these opportunities for student involvement, and we are constantly seeking new and innovative ways to enhance students’ professional development. As our readership has expanded across the globe and our scope has broadened to cross many Kinesiology related disciplines, we believe ...


The Benefits Of Participation In Yoga For Students With Disabilities, Micah Joseph 2018 The College at Brockport: State University of New York

The Benefits Of Participation In Yoga For Students With Disabilities, Micah Joseph

Kinesiology, Sport Studies, and Physical Education Synthesis Projects

The purpose of this synthesis is to look at the benefits that participation in yoga has on students with disabilities. Many students with disabilities fall behind their peers early on in their education in regards simple social skills and motor abilities. Yoga has been known to have a positive effect in those areas on students without disabilities, however there is limited research on the topic for students with disabilities. The studies provided in the critical mass show the positive impact that yoga can have on students with autism, visual impairments, and intellectual disabilities. These benefits include social-adaptation, self-regulation, self-esteem/confidence ...


Objective Measurement Of Physical Activity Outcomes In Lifestyle Interventions Among Adults: A Systematic Review, Valerie J. Silfee, Christina Haughton, Danielle E. Jake-Schoffman, Andrea Lopez-Cepero, Christine N. May, Meera Sreedhara, Milagros C. Rosal, Stephanie Lemon 2018 University of Massachusetts Medical School

Objective Measurement Of Physical Activity Outcomes In Lifestyle Interventions Among Adults: A Systematic Review, Valerie J. Silfee, Christina Haughton, Danielle E. Jake-Schoffman, Andrea Lopez-Cepero, Christine N. May, Meera Sreedhara, Milagros C. Rosal, Stephanie Lemon

UMass Center for Clinical and Translational Science Supported Publications

Valid, reliable, and direct measures of physical activity (PA) are critical to assessing the impact of lifestyle PA interventions. However, little is known about the extent to which objective measures have been used to assess the outcomes of lifestyle PA interventions. This systematic review had two aims: 1) evaluate the extent to which PA is measured objectively in lifestyle PA interventions targeting adults and 2) explore and summarize what objective measures have been used and what PA dimensions and metrics have been reported. Pubmed, Cochrane Central Register, and PsychInfo were searched for lifestyle PA interventions conducted between 2006 and 2016 ...


Performance Impact Of Different Lower-Limb Setup Positions In The Backstroke Swimming Start, Gordon E. Barkwell 2018 The University of Western Ontario

Performance Impact Of Different Lower-Limb Setup Positions In The Backstroke Swimming Start, Gordon E. Barkwell

Electronic Thesis and Dissertation Repository

The performance impact of different knee extension angles in the setup position for a backstroke start was evaluated using an instrumented starting surface. Ten backstroke swimmers completed maximum-effort starts in each of two setup positions: one with the knees flexed, and one with the knees extended. The start handles and touchpad were instrumented with tri-axial force plates. Activity of major hip and knee extensors was measured using surface electromyography. Body position was recorded throughout the start using two high-speed cameras. There was no difference in time to 10 m between the two conditions, indicating there is likely no advantage in ...


Motor Variability In Rowing, Maude Potvin-Gilbert 2018 The University of Western Ontario

Motor Variability In Rowing, Maude Potvin-Gilbert

Electronic Thesis and Dissertation Repository

The aim of the study was to analyze the impact of environment, intensity and distance rowed on temporal variability of strokes and on knee angle variability. 11 participants rowed 2,000 m at high and low intensities on an ergometer and at high intensity in a single on-water. Data were collected at the beginning and at the end of each exercise. All the factors influenced significantly the temporal variability (respectively beta=-0.013 and p .007=; beta= 0.007 and p=.021; beta=0.06 and p=.028). The difference of visual information and the need of the rower to ...


Technology-Based Physical Activity Self-Monitoring Among College Students, Zack Papalia, Oliver Wilson, Melissa Bopp, Michele Duffey 2018 Pennsylvania State University

Technology-Based Physical Activity Self-Monitoring Among College Students, Zack Papalia, Oliver Wilson, Melissa Bopp, Michele Duffey

International Journal of Exercise Science

International Journal of Exercise Science 11(7): 1096-1104, 2018. Understanding the relationship between college students’ physical activity (PA) self-monitoring and PA levels has the potential to inform initiatives to promote PA. This study’s purpose was to examine the prevalence of technology-based self-monitoring among college students the potential relationship between device usage, goal setting behaviors, PA enjoyment, and PA levels. An online survey assessed students' demographics, current PA level, technology-based PA self-monitoring, and psychosocial outcomes. Independent t-tests examined differences in PA level and psychosocial outcomes by device use. 55.5% of the final sample (N=1,154) reported technology-based self-monitoring ...


Can Heart Rate Variability Predict The Second Metabolic Threshold In Young Soccer Players?, Gustavo S. Ribeiro, Ubiratan R. Pereira, André L. Lopes 2018 Universidade Federal de Ciências da Saúde de Porto Alegre

Can Heart Rate Variability Predict The Second Metabolic Threshold In Young Soccer Players?, Gustavo S. Ribeiro, Ubiratan R. Pereira, André L. Lopes

International Journal of Exercise Science

International Journal of Exercise Science 11(2): 1105-1111, 2018. Heart rate variability (HRV) is an effective method to assess the influence of the autonomic nervous system, which may be directly linked to metabolic demand. The aim of the study was to determine if the second metabolic threshold can be identified by HRV. Thirteen athletes were assessed in cardiopulmonary exercise test with concomitant gas analysis. The RR intervals (RRi) were plotted in a spreadsheet for graphics analysis and the point at which there was a shift in the RRi curve was determined as RRiT2. The second ventilatory threshold (VT2 ...


Comparison Of Two Static Stretching Procedures On Hip Adductor Flexibility And Strength, Brandon Fjerstad, Roger L. Hammer Dr., Adam Hammer, Gavin Connolly, Karen Lomond, Paul O'Connor 2018 Saginaw Valley State University

Comparison Of Two Static Stretching Procedures On Hip Adductor Flexibility And Strength, Brandon Fjerstad, Roger L. Hammer Dr., Adam Hammer, Gavin Connolly, Karen Lomond, Paul O'Connor

International Journal of Exercise Science

International Journal of Exercise Science 11(6): 1074-1085, 2018. It has been shown that acute static stretching (SS) may increase flexibility, improve performance and reduce the risk of muscle strains, but may also result in decreased maximal force output. Literature review revealed little research had specifically been done on the most effective ways to stretch the hip adductor muscles. The purpose was to determine the effects that an acute bout of SS (active vs passive) has on hip adductor flexibility and maintenance of strength. Randomized cross-over study using a 3 X 2 (Condition X Time) repeated measures ANOVA statistical design ...


The Effect Of Active Ankle T1tm Ankle Braces On The Timing Of Muscular Activation In The Leg In Female Varsity Volleyball Players: A Pilot Study, Kylee Kuchta, Sara Potter, Heather Brousseau, Ian Newhouse 2018 Lakehead University

The Effect Of Active Ankle T1tm Ankle Braces On The Timing Of Muscular Activation In The Leg In Female Varsity Volleyball Players: A Pilot Study, Kylee Kuchta, Sara Potter, Heather Brousseau, Ian Newhouse

International Journal of Exercise Science

International Journal of Exercise Science 11(1): 1086-1095, 2018. The objective was to examine the effect of Active Ankle T1TM ankle braces on the timing of muscular activation of the upper leg in female volleyball athletes during a one-legged landing task. Fourteen healthy female varsity volleyball athletes participated in this study. Each signed a participant recruitment form, consent form, a Physical Activities Readiness Questionnaire (PAR-Q) and completed the injury screening form. A warm up was completed followed by two practice jumps. Each participant was randomly assigned and counterbalanced to a condition to begin with (no brace or brace). Once ...


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