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Articles 1 - 30 of 280
Full-Text Articles in Physiology
Acute Effects Of Whole-Body Vibration On Lower Extremity Muscle Performance In Persons With Multiple Sclerosis, Kurt Jackson, Harold Merriman, Paul Vanderburgh, C. Brahler
Acute Effects Of Whole-Body Vibration On Lower Extremity Muscle Performance In Persons With Multiple Sclerosis, Kurt Jackson, Harold Merriman, Paul Vanderburgh, C. Brahler
C. Jayne Brahler
Background and Purpose: Whole-body vibration (WBV) is a relatively new form of exercise training that may influence muscle performance. This study investigated the acute effects of high (26 Hz) and low (2 Hz) frequency WBV on isometric muscle torque of the quadriceps and hamstrings in persons with multiple sclerosis (MS).
Participants and Method: Fifteen individuals (mean age = 54.6 years, SD = 9.6) with MS and Expanded Disability Status Scale (EDSS) scores ranging from 0-6.5 (mean = 4.2, SD = 2.3) participated in this randomized cross-over study. Following baseline measures of isometric quadricep and hamstring torque, subjects were exposed to …
Characterizing The Performance And Behaviors Of Runners Using Twitter, Qian He, Emmanuel Agu, Diane Strong, Bengisu Tulu, Peder Pedersen
Characterizing The Performance And Behaviors Of Runners Using Twitter, Qian He, Emmanuel Agu, Diane Strong, Bengisu Tulu, Peder Pedersen
Emmanuel O. Agu
Running is a popular physical activity that improves physical and mental wellbeing. Unfortunately, up-to- date information about runners’ performance and psychological wellbeing is limited. Many questions remain unanswered, such as how far and how fast runners typically run, their preferred running times and frequencies, how long new runners persist before dropping out, and what factors cause runners to quit. Without hard data, establishing patterns of runner behavior and mitigating the challenges they face are difficult. Collecting data manually from large numbers of runners for research studies is costly and time consuming. Emerging Social Networking Services (SNS) and fitness tracking devices …
Using Hexoskin Wearable Technology To Obtain Body Metrics In A Trail Hiking Setting, Jeffrey Montes, Tori M. Stone, Jacob W. Manning, Damon Mccune, Debra K. Tacad, Jack C. Young, Mark Debeliso Phd, James W. Navalta
Using Hexoskin Wearable Technology To Obtain Body Metrics In A Trail Hiking Setting, Jeffrey Montes, Tori M. Stone, Jacob W. Manning, Damon Mccune, Debra K. Tacad, Jack C. Young, Mark Debeliso Phd, James W. Navalta
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 425-430, 2015. Use of wearable technology to obtain various body metrics appears to be a trending phenomenon. However there is very little literature supporting the notion that these apparatuses can be used for research purposes in the field. The purpose of this study was to utilize Hexoskin wearable technology shirts (HxS) to obtain data in a pilot study using a trail hiking situation. Ten individuals (male, n = 4, female n = 6) volunteered to participate. On the first day, volunteers completed two approximately flat trail hikes at a self-preferred pace with a 15-minute …
Age-Related Differences In Upper-Body Muscular Endurance Amongst Male Law Enforcement Officers: A Comparison To Civilian Population Norms, Rob Orr, Rodney Pope, Jay Dawes
Age-Related Differences In Upper-Body Muscular Endurance Amongst Male Law Enforcement Officers: A Comparison To Civilian Population Norms, Rob Orr, Rodney Pope, Jay Dawes
Rodney P Pope
Download a PDF of the Conference Abstracts. Access the abstract on page 30-31.
The Impact Of Two Different Conditioning Programs On Fitness Characteristics Of Police Academy Cadets, Charles Cocke, Jay Dawes, Rob Orr
The Impact Of Two Different Conditioning Programs On Fitness Characteristics Of Police Academy Cadets, Charles Cocke, Jay Dawes, Rob Orr
Rob Marc Orr
Abstract published in the Journal of Science and Medicine in Sport – Supplement, 18(6), pp. 98. Access the abstract
Age-Related Differences In Upper-Body Muscular Endurance Amongst Male Law Enforcement Officers: A Comparison To Civilian Population Norms, Rob Orr, Rodney Pope, Jay Dawes
Age-Related Differences In Upper-Body Muscular Endurance Amongst Male Law Enforcement Officers: A Comparison To Civilian Population Norms, Rob Orr, Rodney Pope, Jay Dawes
Rob Marc Orr
Download a PDF of the Conference Abstracts. Access the abstract on page 30-31.
Load Carriage Distance Run And Pushups Tests: No Body Mass Bias And Occupationally Relevant, Paul M. Vanderburgh, Nicholas S. Mickley, Philip A. Anloague, Kimber Lucius
Load Carriage Distance Run And Pushups Tests: No Body Mass Bias And Occupationally Relevant, Paul M. Vanderburgh, Nicholas S. Mickley, Philip A. Anloague, Kimber Lucius
Philip A. Anloague
Recent research has demonstrated body mass (M) bias in military physical fi tness tests favoring lighter, not just leaner, service members. Mathematical modeling predicts that a distance run carrying a backpack of 30 lbs would eliminate M-bias. The purpose of this study was to empirically test this prediction for the U.S. Army push-ups and 2-mile run tests. Two tests were performed for both events for each of 56 university Reserve Offi cer Training Corps male cadets: with (loaded) and without backpack (unloaded). Results indicated signifi cant M-bias in the unloaded and no M-bias in the loaded condition for both events. …
Analysis Of Changes In Muscle Architecture And Explosive Ability In Ncaa Division I Volleyball Players, Caleb D. Bazyler, Jacob R. Goodin, Conrad Rapp, Mark Disanto, Frank Smith, Michael H. Stone
Analysis Of Changes In Muscle Architecture And Explosive Ability In Ncaa Division I Volleyball Players, Caleb D. Bazyler, Jacob R. Goodin, Conrad Rapp, Mark Disanto, Frank Smith, Michael H. Stone
ETSU Faculty Works
Abstract available in the 10th Annual Coaches and Sport Science College .
Application Of Principal Components Analysis In Kinetics Study For Isometric Squat, Junshi Liu, Caleb D. Bazyler, Christopher B. Taber, Tony Pustina, Satoshi Mizuguchi
Application Of Principal Components Analysis In Kinetics Study For Isometric Squat, Junshi Liu, Caleb D. Bazyler, Christopher B. Taber, Tony Pustina, Satoshi Mizuguchi
ETSU Faculty Works
Abstract available in the 10th Annual Coaches and Sport Science College .
Countermovement Jump Performance Changes Over The Course Of Collegiate Basketball Pre-Season Associated With Block Periodization Model Of Strength And Conditioning Program, Nobuhisa Yoshida, Caleb D. Bazyler, Takahiro Unebasami, Stephen Wells, Zachary Whitman, Danielle Lee, Mallory Stellhorn, Kimitake Sato, Michael H. Stone
Countermovement Jump Performance Changes Over The Course Of Collegiate Basketball Pre-Season Associated With Block Periodization Model Of Strength And Conditioning Program, Nobuhisa Yoshida, Caleb D. Bazyler, Takahiro Unebasami, Stephen Wells, Zachary Whitman, Danielle Lee, Mallory Stellhorn, Kimitake Sato, Michael H. Stone
ETSU Faculty Works
No abstract provided.
Acute Effects Of Whole-Body Vibration On Lower Extremity Muscle Performance In Persons With Multiple Sclerosis, Kurt Jackson, Harold L. Merriman, Paul M. Vanderburgh, C. Jayne Brahler
Acute Effects Of Whole-Body Vibration On Lower Extremity Muscle Performance In Persons With Multiple Sclerosis, Kurt Jackson, Harold L. Merriman, Paul M. Vanderburgh, C. Jayne Brahler
Harold L. Merriman
Background and Purpose: Whole-body vibration (WBV) is a relatively new form of exercise training that may influence muscle performance. This study investigated the acute effects of high (26 Hz) and low (2 Hz) frequency WBV on isometric muscle torque of the quadriceps and hamstrings in persons with multiple sclerosis (MS). Participants and Method: Fifteen individuals (mean age = 54.6 years, SD = 9.6) with MS and Expanded Disability Status Scale (EDSS) scores ranging from 0-6.5 (mean = 4.2, SD = 2.3) participated in this randomized cross-over study. Following baseline measures of isometric quadricep and hamstring torque, subjects were exposed to …
Changes In Intragastric Temperature Reflect Changes In Heat Stress Following Tepid Fluid Ingestion But Not Ice Slurry Ingestion, Christopher J. Stevens, Ben Dascombe
Changes In Intragastric Temperature Reflect Changes In Heat Stress Following Tepid Fluid Ingestion But Not Ice Slurry Ingestion, Christopher J. Stevens, Ben Dascombe
Journal of Human Performance in Extreme Environments
This study examined the effects of fluid and ice slurry ingestion on the relationship between intragastric temperature and rectal temperature in humans during physical activity. The purpose was to identify a technique to quantify changes in heat stress in situations when temperature probes are not feasible and when time constraints do not allow for a period long enough for an indigestible temperature capsule to reach the lower gastrointestinal tract. Eight moderately trained male runners inserted a rectal probe and ingested a telemetric capsule before randomized, crossover, pre-exercise ingestion of 7.5 mL x kg-1 x BM-1tepid fluid (22°C) …
Prediction Of Maximal Oxygen Consumption From Rating Of Perceived Exertion (Rpe) Using A Modified Total-Body Recumbent Stepper, John P. Mcculloch, Douglas J. Lorenz, Michael A. Kloby, Matthew D. Love, Daniela G.L. Terson De Paleville Phd
Prediction Of Maximal Oxygen Consumption From Rating Of Perceived Exertion (Rpe) Using A Modified Total-Body Recumbent Stepper, John P. Mcculloch, Douglas J. Lorenz, Michael A. Kloby, Matthew D. Love, Daniela G.L. Terson De Paleville Phd
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 414-424, 2015. Exercise training is crucial to improve cardiovascular health and quality of life in people with spinal cord injuries (SCI). A key limitation is the lack of validated submaximal tests to evaluate and predict cardiovascular fitness in this population. The purpose of this study was to validate a submaximal test to predict maximal oxygen consumption for individuals with SCI. Ten able-bodied participants and two individuals with SCI completed a rating of perceived exertion (RPE)-based submaximal oxygen consumption test and a graded maximal oxygen consumption test on a NuStep T4 recumbent stepper. Prediction of …
Assessment Of Dietary Behaviors, Body Composition, And Cardiovascular Disease Risk Among College Club Rugby Team, Carly R. Macdougall, Gytis Balilionis, Svetlana Nepocatych
Assessment Of Dietary Behaviors, Body Composition, And Cardiovascular Disease Risk Among College Club Rugby Team, Carly R. Macdougall, Gytis Balilionis, Svetlana Nepocatych
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 403-413, 2015. The purpose of this study was to evaluate dietary behaviors, body composition, and potential cardiovascular disease (CVD) risk factors among college club rugby team players. 15 athletes completed demographics, three 24-hour dietary recalls, body composition and blood lipid profile assessments following an overnight fast. Mean ± SD age of participants was 20 ± 1 years; weight 81 ± 16 kg; BMI 25.7 ± 3.2 kg/m2; body fat 13 ± 5%; total cholesterol 133 ± 37 mg/dl; high-density lipoprotein 49 ± 18 mg/dl; low-density lipoproteins 77 ± 26 mg/dl; triglycerides 86 …
The Influence Of Short-Term Quercetin Supplementation On Peak Oxygen Uptake During Simulated Altitude Exposure In Trained Cyclists, Justin A. Carlstrom
The Influence Of Short-Term Quercetin Supplementation On Peak Oxygen Uptake During Simulated Altitude Exposure In Trained Cyclists, Justin A. Carlstrom
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 394-402, 2015. Endurance performance and peak oxygen uptake (VO2peak) decline as altitude increases. Some data exist suggesting that quercetin supplementation improves aerobic capacity in trained and untrained individuals at sea-level (normobaric normoxic conditions). Few studies have examined the effects of quercetin on endurance performance during simulated altitude exposure (normobaric hypoxic conditions). The purpose of this study was to determine the effects of consuming 1000 mg·day-1 of quercetin for two weeks on cycling VO2peak in healthy trained male cyclists performing under normobaric normoxic and hypoxic conditions (NP and HP, respectively). Fourteen …
Efficacy Of Vibration Exercise As A Warm-Up Modality For Overground Sprinting, Victoria Moddie, Amanda C. Benson, Brett A. Gordon, Noel Lythgo
Efficacy Of Vibration Exercise As A Warm-Up Modality For Overground Sprinting, Victoria Moddie, Amanda C. Benson, Brett A. Gordon, Noel Lythgo
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 385-393, 2015. This study investigated the efficacy of vibration exercise (VbX) as a warm-up modality for maximal overground sprinting. Ten national level sprinters participated in a randomized crossover design (14.0 ± 7.4 days washout period). A VbX warm-up was compared to a warm-up involving sprint-specific exercises (control condition). The VbX warm-up involved 10 ´ 1 minute bouts delivered by a Galileo 900 side-alternating plate (frequency = 26 Hz, peak-to-peak displacement = 9 mm) with 30 s rest between bouts (total time = 15 minutes). The sprint-specific warm-up involved jogging, dynamic exercises and sprinting drills …
A Multi-Directional Treadmill Training Program For Improving Gait, Balance, And Mobility In Individuals With Parkinson’S Disease: A Case Series, Kimberly Smith, Kurt Jackson, Kimberly Edginton-Bigelow, Lloyd Laubach
A Multi-Directional Treadmill Training Program For Improving Gait, Balance, And Mobility In Individuals With Parkinson’S Disease: A Case Series, Kimberly Smith, Kurt Jackson, Kimberly Edginton-Bigelow, Lloyd Laubach
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 372-384, 2015. Treadmill training is a commonly used intervention for improving gait in people with Parkinson’s disease (PD). However, little is known about how treadmill training may also influence balance and other aspects of mobility. The purpose of this case series was to explore the feasibility and possible benefits of multi-directional treadmill training for individuals with PD. Four participants (62.3 ± 6.5 yrs, Hoehn & Yahr 2-4) performed 8 weeks of treadmill training 3 times per week. Weeks 1-4 included forward walking only, while weeks 5-8 included forward and multi-directional walking. Participants were tested …
Seasonal Variation In The Distribution Of Daily Stepping In 11-13 Year Old School Children, Paul Mccrorie, Elaine Duncan, Malcolm Granat, Benedict Stansfield
Seasonal Variation In The Distribution Of Daily Stepping In 11-13 Year Old School Children, Paul Mccrorie, Elaine Duncan, Malcolm Granat, Benedict Stansfield
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 358-371, 2015. Seasonality studies in adolescent’s physical activity (PA) tend to report total PA (e.g. steps/day) rather than more specific detail such as steps/hour. This study compared the detailed changes in PA between seasons. Thirty three adolescents (baseline age 12.2 ± 0.3y) wore the activPAL activity monitor for 8 days on two occasions. Steps/day were higher in summer (Mdn = 12,879) than winter (Mdn = 10,512), p.05), however, boys had significantly higher step counts in summer between ’13:00-14:00’ (p=.023), ’19:00-20:00’ (p=.032) and ‘20:00-21:00’ (p=.023). Total steps/day masked sex differences within specific hours of the …
Tactical Athletes: An Integrated Approach To Understanding And Enhancing The Health And Performance Of Firefighters-In-Training, Stacy L. Gnacinski, Barbara B. Meyer, David J. Cornell, Jason Mims, Kathryn R. Zalewski, Kyle T. Ebersole
Tactical Athletes: An Integrated Approach To Understanding And Enhancing The Health And Performance Of Firefighters-In-Training, Stacy L. Gnacinski, Barbara B. Meyer, David J. Cornell, Jason Mims, Kathryn R. Zalewski, Kyle T. Ebersole
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 341-357, 2015. In an effort to reduce the rates of firefighter fatality, injury, and workplace stress, there has been a call for research to advance knowledge of firefighting performance and injury prevention. Physical and psychological variables important to firefighter health and performance have been identified, yet the interrelated nature of these variables has been overlooked. Given the overlap between the physical and psychological demands of firefighting and sport, and given that an integrated framework has been used in the sport domain to guide athlete health and performance research and practice, firefighter organizations could benefit …
Performance And Perceptual Responses Of Collegiate Female Soccer Players To A Practical External And Internal Cooling Protocol, Rachel L. Holm, Veronika Pribyslavska, Samantha L. Johnson, Jordan B. Lowe, Mary C. Stevenson-Wilcoxson, Eric M. Scudamore, James M. Green, Charlie P. Katica, Eric K. O'Neal
Performance And Perceptual Responses Of Collegiate Female Soccer Players To A Practical External And Internal Cooling Protocol, Rachel L. Holm, Veronika Pribyslavska, Samantha L. Johnson, Jordan B. Lowe, Mary C. Stevenson-Wilcoxson, Eric M. Scudamore, James M. Green, Charlie P. Katica, Eric K. O'Neal
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 331-340, 2015. This study examined practical pre- and mid practice cooling interventions on running performance, perceived exertion (RPE), and thermal sensation (TS) during soccer. During two formal pre-season practices female, NCAA Division II soccer players participated in three, 15 min scrimmage bouts followed by a 4th 10 min bout. Following the 1st, 2nd, and 3rd bouts, 8 field position players completed competitive sets of two, 30 yard sprints against other team members with time recorded between 5 and 30 yards. After the 4th bout, players completed an …
Validation Of Maximal Heart Rate Prediction Equations Based On Sex And Physical Activity Status, Stephen J. Roy, J.L. Mccrory
Validation Of Maximal Heart Rate Prediction Equations Based On Sex And Physical Activity Status, Stephen J. Roy, J.L. Mccrory
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 318-330, 2015. The purpose of the study was to determine if measured maximal heart rate (HRmax) was affected by sex or aerobic training status, and to determine the accuracy of three common clinical age-prediction maximal heart rate regression equations used to predict HRmax: HRmax = 220 – age, HRmax = 226 – age, and HRmax = 208 – (0.7 ∙ age). Fifty-two participants in total, 30 of which were in the active group (15 M, 15 F) and 22 subjects in the sedentary group (9 M, …
Preferences Toward Gender Of Coach And Perceptions Of Roles Of Basketball Coaches, Jacqui L. Kalin, Jennifer J. Waldron
Preferences Toward Gender Of Coach And Perceptions Of Roles Of Basketball Coaches, Jacqui L. Kalin, Jennifer J. Waldron
International Journal of Exercise Science
International Journal of Exercise Science 8(4): 303-317. Framed within role congruity theory this study examined (a) if female collegiate basketball players have a preference toward male or female head basketball coaches, (b) if the gender and enjoyment level of past head coaches influence preferences toward a male or female head coach and/or influence the perceived roles of women’s basketball head coaches, and (c) if there is a relationship between the perceived roles of women’s basketball head coaches and female collegiate basketball players’ preferences toward male or female head coaches. Fifty-nine women’s basketball players from 10 Division I universities completed a …
Workforce Fitness: Description, Contextual Issues, And Implications For Public Health, Nicolaas P. Pronk
Workforce Fitness: Description, Contextual Issues, And Implications For Public Health, Nicolaas P. Pronk
Frontiers in Public Health Services and Systems Research
Workforce fitness matters for the prevention of premature death, chronic diseases, productivity loss, excess medical care costs, loss of income or family earnings, and other social and economic concerns. Yet fitness levels appear to be relatively low and declining. Over the past half century obesity has doubled, physical activity levels are below par, and cardiorespiratory fitness often does not meet minimally acceptable job standards. During this time, daily occupational energy expenditure has decreased by more than 100 calories. It is recommended for employers to consider best practices and design workplace wellness programs accordingly. Regulations that protect and promote worker health, …
Degrees Of Damage: Quantifying Male Vs. Female Exercise-Induced Muscle Damage Through Magnetization Transfer Ratios, Nicholai Michael Clausius Crawford
Degrees Of Damage: Quantifying Male Vs. Female Exercise-Induced Muscle Damage Through Magnetization Transfer Ratios, Nicholai Michael Clausius Crawford
Electronic Thesis and Dissertation Repository
No direct, quantitative, and non-invasive markers presently exist to assess exercise-induced muscle damage (EIMD). However, magnetization transfer ratios (MTR), an emerging measurement quantified via magnetic resonance imagery, provide more direct indication of muscle integrity following EIMD. This study compares and correlates the temporal pattern of the MTR to alternative indirect markers of EIMD in male vs. female populations, and subsequently establishes whether there are sex differences in biochemical activity during recovery. The antioxidant properties of estrogen hypothetically minimize muscle trauma, maintain membrane stability, and limit swelling resulting in heightened tissue integrity and resilience to EIMD. Six males and three females …
Examination Of The Non-Linear V̇O2p Response To Exercise: Non-Invasive Evidence Of Linear Systems Control Using V̇O2p Kinetic Analyses, Daniel A. Keir
Examination Of The Non-Linear V̇O2p Response To Exercise: Non-Invasive Evidence Of Linear Systems Control Using V̇O2p Kinetic Analyses, Daniel A. Keir
Electronic Thesis and Dissertation Repository
The pulmonary O2 uptake (V̇O2p) response to exercise has been characterized by exponential kinetics that remain constant regardless of the exercise protocol used to force the change in V̇O2p (kinetics are invariant). A system that responds in this way is classified as “dynamically linear”, implying that a first-order rate reaction controls V̇O2 at the muscle level (V̇O2m). However, slowed V̇O2p kinetics when initiating exercise from raised baseline intensities challenges this notion. The purpose of this thesis was to characterize the rate (τV̇O2p) and magnitude (gain) of adjustment of V̇O2p …
Molecular Mechanisms Underlying The Contralateral Repeated Bout Effect (Crbe) In Human Skeletal Muscle, Ling Xin
Doctoral Dissertations
Eccentric (muscle lengthening) exercise induces temporary muscle damage that can lead to long-term muscle adaptation, a process known as the repeated bout effect where subsequent exercise results in less damage. The existence of a contralateral repeated bout effect (CRBE) has been controversial. The primary goals of this study were to: 1) validate the existence of the CRBE; and 2) define the underlying molecular mechanisms. Thirty-six young men performed 100 maximal eccentric actions of the knee extensors using one leg (bout 1) and repeated the exercise with the contralateral leg five weeks later (bout 2). Vastus lateralis muscle biopsies were …
The Effect Of A Multiple Modality Mind-Motor Exercise Intervention On Single And Dual-Task Gait, Balance, And Executive Function, In Community Dwelling Older Adults With A Subjective Cognitive Complaint: A Randomized Controlled Trial., John P. Bocti
Electronic Thesis and Dissertation Repository
Cognitive decline disorders are becoming increasingly prevalent, with older adults at increased risk. Combined exercise has been recently explored as an intervention to help to prevent the decline, however cognitive activation in combination with physical activity has yet to be explored. Therefore, the purpose of the study is to determine the effects of multiple modality exercise programs in combination with a mind-motor task and their effects on mobility and cognitive variables. A total of (n=89) older adults (55+ yrs), with subjective cognitive complaints participated in a multiple modality exercise class, three days a week over six months, with the intervention …
The Effect Of Yoga On Growth Hormone Secretion In Young Men And Women, Aaron Eastham
The Effect Of Yoga On Growth Hormone Secretion In Young Men And Women, Aaron Eastham
All NMU Master's Theses
PURPOSE The purpose of this study was to examine the effects of an acute bout of yoga exercise on the secretion of growth hormone (GH) in healthy, young males and females. METHODS Seventeen participants (mean age 23.9 ± 3.9) were volunteered and completed the university IRB approved study. Participants completed a 60-min, certified instructor led yoga session. Blood (5ml) was collected at rest, 10-min prior (PRE), at the 35-min point during (MID), and immediately post (POST) the yoga session. Serum GH was measured using immunochemiluminometric assay. Resting GH levels were statistically compared to mid- and post-yoga GH levels using a …
The Effects Of Ovarian Hormones And Exercise On Gene Markers Of Cardiac Dysfunction, Anisha S. Patel
The Effects Of Ovarian Hormones And Exercise On Gene Markers Of Cardiac Dysfunction, Anisha S. Patel
Masters Theses
Heart disease is the leading cause of death in women in the United States. Premenopausal women appear to have better cardiac function and lower risk of heart disease compared to male postmenopausal female counterparts. Ovarian hormone loss influences blood pressure homeostasis and causes systemic inflammation, which may result in chronic stress on the heart. Two key physiological changes in cardiac dysfunction are reemergence of the fetal gene pattern and myocardial remodeling. Physical activity has been linked to improved cardiac function. The purpose of this study was to investigate the effects of ovariectomy on early markers of cardiac dysfunction and fibrosis …
Use And Misuse Of The Likert Item Responses And Other Ordinal Measures, Phillip A. Bishop, Robert L. Herron
Use And Misuse Of The Likert Item Responses And Other Ordinal Measures, Phillip A. Bishop, Robert L. Herron
International Journal of Exercise Science
International Journal of Exercise Science 8(3): 297-302, 2015. Likert, Likert-type, and ordinal-scale responses are very popular psychometric item scoring schemes for attempting to quantify people’s opinions, interests, or perceived efficacy of an intervention and are used extensively in Physical Education and Exercise Science research. However, these numbered measures are generally considered ordinal and violate some statistical assumptions needed to evaluate them as normally distributed, parametric data. This is an issue because parametric statistics are generally perceived as being more statistically powerful than non-parametric statistics. To avoid possible misinterpretation, care must be taken in analyzing these types of data. The use …