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Articles 781 - 810 of 3176

Full-Text Articles in Exercise Physiology

Age-Related Reduction In High-Velocity Power And Myofiber Morphology And Composition, Ben Dalton Aug 2021

Age-Related Reduction In High-Velocity Power And Myofiber Morphology And Composition, Ben Dalton

Symposium of Student Scholars

Power is diminished more dramatically at higher contraction velocities in older adults. It has been suggested that this may reflect age-related changes in single myofiber morphology or composition. PURPOSE: To examine power, muscle activation, and single myofiber morphology and composition between young (YM) and older (OM) males. METHODS: Power, or torque × velocity, was recorded during isokinetic knee extensions at 60°·s-1 and 180°·s-1 in healthy, untrained YM (n=15; 20.7±2.2 yrs) and OM (n=15; 71.6±3.9 yrs). The relative increase in power from 60°·s-1 to 180°·s-1 was recorded for each participant. Electromyography amplitude of the vastus lateralis (VL) …

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Accumulated Oxygen Deficit During Arm Cranking In Hypoxia: A Bayesian Perspective And Methodological Considerations, Tristan Starling-Smith, David Boffey, Michael La Monica, Jeffrey R. Stout, David H. Fukuda Aug 2021

Accumulated Oxygen Deficit During Arm Cranking In Hypoxia: A Bayesian Perspective And Methodological Considerations, Tristan Starling-Smith, David Boffey, Michael La Monica, Jeffrey R. Stout, David H. Fukuda

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 1090-1098, 2021. The purpose of this investigation was to observe the effects of normobaric hypoxia on accumulated oxygen deficit (AOD) with evaluation using both Bayesian and Frequentist analyses. Eighteen recreationally active men performed a graded exercise test (GXT) in normobaric normoxia (N; FiO2~20%) and normobaric hypoxia (H; FiO2~14%) to determine peak power output (PPO). Time to exhaustion trials were later conducted at 110% and 120% PPO under both N, and H. AOD and %AN (% anaerobic energy contribution) were calculated in three conditions: N, H, and H using the N regression equation (HN). Bayesian …

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Relationships Between Absolute And Relative Lower-Body Power And Foot Pursuit Ability In Law Enforcement Recruits, Robert G. Lockie, Robin Marc Orr, Joseph Dulla, J. Jay Dawes Aug 2021

Relationships Between Absolute And Relative Lower-Body Power And Foot Pursuit Ability In Law Enforcement Recruits, Robert G. Lockie, Robin Marc Orr, Joseph Dulla, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 1078-1089, 2021. An essential job task for law enforcement officers is a foot pursuit. Lower-body power should aid foot pursuit ability; however, there has been minimal investigation of this relationship. This study investigated relationships between absolute and relative lower-body power measured by the vertical jump (VJ) with the 75-yard pursuit run (75PR), which is a change-of-direction (COD) speed test that simulates a foot pursuit in law enforcement recruits. Data from 487 male and 95 female recruits who completed the VJ and 75PR prior to academy training was analyzed. VJ variables included VJ height, relative …

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Reduced Injury Prevalence In Soccer Athletes Following Gps Guided Acclimatization, Montgomery Bertschy, Jeffrey Howard, Sakiko Oyama, Kelly Cheever Aug 2021

Reduced Injury Prevalence In Soccer Athletes Following Gps Guided Acclimatization, Montgomery Bertschy, Jeffrey Howard, Sakiko Oyama, Kelly Cheever

International Journal of Exercise Science

International Journal of Exercise Science 14(7): 1070-1077, 2021. GPS technology has been used to retrospectively correlate injury risk to changes in training load, however the use of GPS technology to plan and monitor training load over an acclimatization period to prevent musculoskeletal injury remains unexplored. This article reports the utility of GPS technology to help develop and monitor incremental increases in training load while transitioning from off-season to in season to reduce musculoskeletal injury. A series of daily minimum standards were established based on observed training loads in year 1 to gradually acclimate soccer athletes over a 5-week period prior …

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Effects Of Different Types Of Lower Body Resistance Exercise On Upper-Body Strength In Men And Women, With Special Reference To Anabolic Hormones, Johan Jakobsson, Apostolos Theos, Christer Malm Aug 2021

Effects Of Different Types Of Lower Body Resistance Exercise On Upper-Body Strength In Men And Women, With Special Reference To Anabolic Hormones, Johan Jakobsson, Apostolos Theos, Christer Malm

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 1052-1069, 2021. Resistance exercise has been shown to induce an acute hormonal response. The purpose of this study was to examine upper-body adaptations and the endocrine response to strength training in men and women when subjected to two different types of lower-body resistance training protocols. Nine males and eight females were assigned to either a Heavy Load (HL) (N = 10) or Mixed Load (ML) (N = 7) training routine three times per week for ten weeks. The HL-group executed low-volume, high-load resistance exercise for both lower and upper-body (4-6 reps at …

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The Effect Of Compression Socks On Maximal Exercise Performance And Recovery In Insufficiently Active Adults, Alexander H.K. Montoye, Alexandra A. Mithen, Haven L. Westra, Summer S. Besteman, Brian C. Rider Aug 2021

The Effect Of Compression Socks On Maximal Exercise Performance And Recovery In Insufficiently Active Adults, Alexander H.K. Montoye, Alexandra A. Mithen, Haven L. Westra, Summer S. Besteman, Brian C. Rider

International Journal of Exercise Science

International Journal of Exercise Science 14(7): 1036-1051, 2021. In athletic populations, compression socks (CS) may improve exercise performance recovery. However, their potential to improve performance and/or recovery following exercise in non-athletic populations is unknown. Our study evaluated the effects of CS on exercise performance and recovery from a graded maximal treadmill test. Insufficiently active adults (n = 10, 60% female, average physical activity ~60 minutes/week) performed two graded maximal exercise tests; one while wearing below-knee CS, and the other trial with regular socks (CON). Order of trials was randomized. For both trials, heart rate, lactate, and rating of perceived …

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Epoc Comparison Between Resistance Training And High-Intensity Interval Training In Aerobically Fit Women, Beau Kjerulf Greer, Julie O'Brien, Lyndsey Hornbuckle, Lynn Panton Aug 2021

Epoc Comparison Between Resistance Training And High-Intensity Interval Training In Aerobically Fit Women, Beau Kjerulf Greer, Julie O'Brien, Lyndsey Hornbuckle, Lynn Panton

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 1027-1035, 2021. Previous research has shown that various modes of exercise may elicit significant increases in resting metabolism for up to 24 hours post-exercise, but typically using untrained or moderately active subjects. The purpose of the present study was to compare excess post-exercise oxygen consumption (EPOC) between circuit-style resistance training (RT) and high-intensity interval training (HIIT) in young, aerobically fit women. During the follicular phase of the menstrual cycle, seven participants reported to the laboratory for evening and morning baseline resting metabolic rate (RMR) measurements via indirect calorimetry. Participants fasted and slept overnight in …

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Mejore Su Salud, Celina Wille, Laura Licon, Laura Paola Johnson, Anny Galvin Aug 2021

Mejore Su Salud, Celina Wille, Laura Licon, Laura Paola Johnson, Anny Galvin

All Current Publications

Create Better Health/Mejore su salud es una versión cultural adaptada de Create Better Health evaluada por expertos y escrita en español, Create Better Health es un currículo del programa Create Better Health Utah SNAP-Ed originalmente adaptado de Creates: Essentials in Creating Family Meals por Debra Christofferson, M.D.A., R.D., C.D. Los miembros del equipo de publicación de la versión en inglés son: Casey Coombs, M.S., R.D., C.D., subdirectora de Create Better Health Utah; Jaqueline Neid-Avila, M.D.A., R.D., C.D .; y editores / colaboradores Heidi LeBlanc, M.S., directora de Create Better Health Utah.

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Reverse Myocardial Remodeling In Hypertrophic Cardiomyopathy: Little Explored Benefit Of Exercise, Jefferson Petto, Edna C. De Oliveira, Raissa Va De Almeida, Alice M. De Oliveira, Danielly Sn Do Amaral, Bráulio Jb De Pinna Jr. Aug 2021

Reverse Myocardial Remodeling In Hypertrophic Cardiomyopathy: Little Explored Benefit Of Exercise, Jefferson Petto, Edna C. De Oliveira, Raissa Va De Almeida, Alice M. De Oliveira, Danielly Sn Do Amaral, Bráulio Jb De Pinna Jr.

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 1018-1026, 2021. Hypertrophic cardiomyopathy (HCM) is an autosomal dominant disease that causes myocardial remodeling. Physical exercise (PE) is a therapeutic resource used in Supervised Cardiac Rehabilitation (SCR) to improve Quality of Life (QL), reducing cardiovascular morbidity and mortality. Therefore, the aim of this study is to report how SCR using a personalized exercise prescription, promoted Reverse Myocardial Remodeling (RMR), improved functionality and QL of a patient with HCM. This is a case report of a 43-year-old sedentary female patient with a Body Mass Index (BMI) of 24.7 kg/m2. The patient was diagnosed …

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Exercise Training Rescues Increased Brain Isf Aβ Caused By Chronic Isolation Stress In App/Ps1 Transgenic Mice, Lydia M. Holtmann Aug 2021

Exercise Training Rescues Increased Brain Isf Aβ Caused By Chronic Isolation Stress In App/Ps1 Transgenic Mice, Lydia M. Holtmann

Graduate Theses/Dissertations

Alzheimer’s Disease (AD) is a progressive brain disorder that destroys memory and cognition thought to be initiated through the build-up of the amyloid-beta (A) peptide. The A peptide aggregates, slowly forming into insoluble plaque substances that destroy the brain and worsen patient’s symptoms over time. Studies have shown that chronic isolation stress (CIS) increases the A peptide soluble and insoluble levels in the brain and that exercise training decreases these levels in transgenic mouse models of AD. We sought to determine if an exercise training regimen would rescue the increase in Aβ levels caused by CIS in the APP/PS1 transgenic …

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Understanding The Pathogenesis Of Renal Medullary Carcinoma, Melinda Soeung Aug 2021

Understanding The Pathogenesis Of Renal Medullary Carcinoma, Melinda Soeung

Dissertations and Theses (Open Access)

Renal medullary carcinoma (RMC) is a lethal cancer that predominantly affects young individuals with sickle cell trait (SCT). It is not currently understood why RMC only affects certain individuals with SCT. We found that patients with RMC more frequently participated in high-intensity exercise than matched controls. Using mouse models of SCT, we demonstrated the significant increase of renal hypoxia in the right kidney following high- but not moderate-intensity exercise. We also demonstrated in cell culture studies that SMARCB1 is ubiquitinated for proteasome-mediated degradation in hypoxia, and the re-expression of SMARCB1 leads to compromised proliferation in renal cells specifically in the …

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Physical Performance Assessments Of Strength And Power In Women Collegiate Athletes, Brian Guthrie, Jennifer B. Fields, Brian Thompson, Margaret T. Jones Jul 2021

Physical Performance Assessments Of Strength And Power In Women Collegiate Athletes, Brian Guthrie, Jennifer B. Fields, Brian Thompson, Margaret T. Jones

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 984-993, 2021. Limited research exists on physical performance assessments for women collegiate athletes. The current cross-sectional study compared field-based tests of muscular strength and power and investigated their relationship. Sports included field hockey, volleyball, soccer, and softball. Tests of one repetition maximum (1-RM) back squat, 1-RM bench press, vertical jump, and standing long jump were administered. A one-way analysis of variance (ANOVA) assessed differences across sports. Bivariate Pearson correlation coefficients examined relationships among tests. It was hypothesized sports with a higher anaerobic nature (volleyball, softball) would outperform those with higher aerobic nature (field hockey, …

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Nontraumatic Injuries In The Ncaa: Collegiate Football Strength Coaches Should Exercise Caution This Off-Season, Andreas Stamatis, Marshall Magnusen Jul 2021

Nontraumatic Injuries In The Ncaa: Collegiate Football Strength Coaches Should Exercise Caution This Off-Season, Andreas Stamatis, Marshall Magnusen

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 980-983, 2021. Strength and conditioning coaches were allegedly involved in pre-COVID-19 nontraumatic injuries/deaths (e.g., exertional heat illness, exertional rhabdomyolysis, cardiorespiratory failure) of NCAA (mainly football) student-athletes during off-season training sessions. During the COVID-19 health crisis, non-pharmaceutical interventions against the SARS-CoV-2 virus included suspension of NCAA seasons, which led to student-athletes exhibiting lower levels of mental health. All NCAA championships have now been reinstated. This summer the off-season is unique, because as several programs had stopped practicing/competing for several months, it may foster additional threats to the wellbeing of the student-athletes. Immediate supplementary action may …

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Combined Physical Training Increases Plasma Brain-Derived Neurotropic Factor Levels, But Not Irisin In People Living With Hiv/Aids, Joice Cristina Dos Santos Trombeta, Roberto Carlos Vieira Junior, Cláudia Regina Cavaglieri, Ivan Luiz Padilha Bonfante, Jonato Prestes, Ramirez Alsamir Tibana, Morteza Ghayomzadeh, Vinicius Carolino Souza, Seyedahmad Seyedalinaghi, James Wilfred Navalta, Fabrício Azevedo Voltarelli Jul 2021

Combined Physical Training Increases Plasma Brain-Derived Neurotropic Factor Levels, But Not Irisin In People Living With Hiv/Aids, Joice Cristina Dos Santos Trombeta, Roberto Carlos Vieira Junior, Cláudia Regina Cavaglieri, Ivan Luiz Padilha Bonfante, Jonato Prestes, Ramirez Alsamir Tibana, Morteza Ghayomzadeh, Vinicius Carolino Souza, Seyedahmad Seyedalinaghi, James Wilfred Navalta, Fabrício Azevedo Voltarelli

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 1004-1017, 2021. This study evaluated plasma levels of brain-derived neurotropic factor (BDNF), irisin, and lactate in people living with HIV/AIDS who completed a combined physical training program. Nineteen HIV+ participants (age: 39.60 ± 10.96 years; carrier time: 7.75 ± 7.88 years; time of ART: 6.41 ± 5.93 years) performed strength/aerobic training (combined physical training) in the same session for 8 weeks and levels of BDNF, irisin, and lactate were assessed. BDNF (pg/mL) was higher post-CPT (Pre: 1258.73 ± 372.30; Post: 1504.17 ± 322.30; p < 0.001). Irisin (ng/mL) showed no change (Pre: 115.61 ± 72.41; Post: 125.87 ± 81.14; p = 0.973). There was positive correlation between irisin …

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Beta-Alanine Supplementation For Four Weeks Increases Volume Index And Reduces Perceived Effort Of Resistance-Trained Men: A Pilot Study., Julio Benvenutti Bueno De Camargo, Felipe Brigatto, Rafael Zaroni, Moises Germano, Raphael Conceicao, Alexandre Martins, Marcelo Aoki, Tiago Braz, Charles Lopes Jul 2021

Beta-Alanine Supplementation For Four Weeks Increases Volume Index And Reduces Perceived Effort Of Resistance-Trained Men: A Pilot Study., Julio Benvenutti Bueno De Camargo, Felipe Brigatto, Rafael Zaroni, Moises Germano, Raphael Conceicao, Alexandre Martins, Marcelo Aoki, Tiago Braz, Charles Lopes

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 994-1003, 2021. The aim of the present study was to assess the short-term effects of four weeks of beta-alanine supplementation (BA) (6.4 g/day) on the total volume performed and perceived effort of resistance-trained individuals. Sixteen trained men (age: 27.3 ± 5.0 years, height: 1.78 ± 0.1 cm, total body mass: 84.3 ± 8.4 kg, RT experience: 5.9 ± 3.3 years) were allocated in one of the following groups: BA or Placebo (PLA). In addition, during the same period, participants were submitted to a resistance training program. Volume index (VI) and the rate of perceived …

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Evaluation Of Load Velocity Profiles With Varying Warm-Up Sets And Relative Intensities, Gabriel L. Perez, Samantha V. Narvaez, Joshua Carrillo, Misael Duque, Noel F. Medrano, Brett S. Nickerson Jul 2021

Evaluation Of Load Velocity Profiles With Varying Warm-Up Sets And Relative Intensities, Gabriel L. Perez, Samantha V. Narvaez, Joshua Carrillo, Misael Duque, Noel F. Medrano, Brett S. Nickerson

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 971-979, 2021. The purpose of this study was to determine whether the number of warm-up sets and relative intensity impacts the prediction of velocity-based one-repetition maximum (1RM) values. Twenty resistance-trained individuals (males: n = 10, females: n = 10) participated in this study. Warm-up sets consisted of subject’s bench-pressing loads at 50 (five-repetitions), 70 (three-repetitions), and 90% (one-repetition) of estimated 1RM. A maximum of four attempts were performed to determine 1RM, while recording mean concentric velocity (MCV)using a linear position transducer during warm-up and 1RM trials in order to develop load-velocity profiles. Specifically, four …

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Transcranial Direct Current Stimulation With The Halo Sport Does Not Improve Performance On A Three-Minute High Intensity Cycling Test, Collin Garner, Rachel Dykstra, Nicholas J. Hanson, Michael G. Miller Jul 2021

Transcranial Direct Current Stimulation With The Halo Sport Does Not Improve Performance On A Three-Minute High Intensity Cycling Test, Collin Garner, Rachel Dykstra, Nicholas J. Hanson, Michael G. Miller

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 962-970, 2021. Transcranial direct current stimulation (tDCS) uses a weak electrical current that is sent through the cerebral cortex. The Halo Sport headphones are a user-friendly form of tDCS that is implemented by many athletes purportedly to improve performance. The purpose of this study was to determine the effect of tDCS, using the Halo Sport, on performance variables associated with a high-intensity three-minute cycling test. Eighteen healthy, active individuals (ten men, eight women) volunteered for this study. The Halo Sport headphones were worn during a 20-minute warmup before completing a high-intensity three-minute cycling test. …

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Prediction And Cross-Validation Of An Energy Expenditure Equation In Walking Or Running In Asian Adults, Xi Jin, Teresa Carithers, Mark Loftin Jul 2021

Prediction And Cross-Validation Of An Energy Expenditure Equation In Walking Or Running In Asian Adults, Xi Jin, Teresa Carithers, Mark Loftin

International Journal of Exercise Science

International Journal of Exercise Science 14(7): 932-940, 2021. The prevalence of obesity is increasing across the world. Knowledge of the actual energy expenditure (EE) of walking and running can lead to a more precise exercise prescription which may contribute to obesity reduction or avoidance. Limited research has focused on EE prediction during walking or running in Asian adults. So, the aims of this study included developing an EE prediction equation and cross-validating the equation for Asian adults. Methods: A total of 85 Asians participated to test EE through indirect calorimetry. Linear regression analysis was employed for EE prediction, and a …

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Developing A Comprehensive Testing Battery For Mixed Martial Arts, Matthew G. Plush, Stuart N. Guppy, Kazunori Nosaka, Oliver R. Barley Jul 2021

Developing A Comprehensive Testing Battery For Mixed Martial Arts, Matthew G. Plush, Stuart N. Guppy, Kazunori Nosaka, Oliver R. Barley

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 941-961, 2021. Mixed martial arts (MMA) is a combat sport that employs techniques from different combat disciplines. There are a multitude of technical and physiological characteristics that contribute to competitive success. Developing a single scientific assessment that can predict competitive outcomes poses great difficulty due to the complexity of MMA. While previous research has investigated some important physiological characteristics, there is no accepted best-practice for a comprehensive testing battery. As such, this study aimed to design and utilize a battery of physiological assessments to cover aerobic and anaerobic function, strength measures including explosive and …

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Anthropometric And Leg Power Factors Affect Offensive Kinetic Patterns In Fencing, Anastasia Ntai, Charilaos Tsolakis, Athanasia Smirniotou, Giorgos Paradisis Jul 2021

Anthropometric And Leg Power Factors Affect Offensive Kinetic Patterns In Fencing, Anastasia Ntai, Charilaos Tsolakis, Athanasia Smirniotou, Giorgos Paradisis

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 919-931, 2021. This study aimed to identify potential factors that may influence specific fencing offensive kinetic patterns in a large group of well-trained fencers having different ages, gender level, and training specialization. One-hundred-thirty fencers (males: n = 72) and (females: n = 58), participating in three different fencing weapons (epee, foil, and sabre), having considerable experience of national and international competitions. All members of seven national fencing teams were measured for basic anthropometric parameters, leg power performance and velocity values for three specific kinetic offensive patterns during an International Fencing camp. A multivariate analysis …

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Ice Hockey Goaltender Physiology Profile And Physical Testing: A Systematic Review And Meta-Analysis, Viviane Marcotte-L'Heureux, Jérémie Charron, Robert Panenic, Alain Steve Comtois Jun 2021

Ice Hockey Goaltender Physiology Profile And Physical Testing: A Systematic Review And Meta-Analysis, Viviane Marcotte-L'Heureux, Jérémie Charron, Robert Panenic, Alain Steve Comtois

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 855-875, 2021. This review aims to 1) be the first systematic review and meta-analysis of the literature examining the physiology and assessment of goaltenders, and 2) present a physiological profile of ice-hockey goaltenders. It will 1) highlight physiological differences between goaltenders and players at other positions, 2) determine strengths and weaknesses of ice hockey goaltenders, and 3) offer possible guidelines for strength and conditioning coaches. Six electronic databases were systematically searched in October 2019 using the PRISMA model. A total of twelve scientific articles published in peer-reviewed journals were included. Professional male (PM) goaltenders …

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The Effect Of Set Configuration And Load On Post-Activation Potentiation On Vertical Jump In Athletes, Paolo Sirieiro, Igor Nasser, Ward C. Dobbs, Jeff Willardson, Humberto Miranda Jun 2021

The Effect Of Set Configuration And Load On Post-Activation Potentiation On Vertical Jump In Athletes, Paolo Sirieiro, Igor Nasser, Ward C. Dobbs, Jeff Willardson, Humberto Miranda

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 902-911, 2021. The aim of this study was to compare the effect of post-activation potentiation (PAP) on countermovement jump (CMJ) using different set configurations and loads on conditioning activity (CA) in highly trained athletes. Sixteen national level swimmers participated in this study and performed a total of six visits to the laboratory. The first session was used for familiarization, the second session was utilized to determine five repetitions maximum (RM) in the half squat (HS), and the following four visits consisted of four CA protocols performed in a counterbalanced order. Two CAs were performed …

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Are There Differences In Fitness Between Recruits From Larger (Hosting) And Smaller (Participating) Law Enforcement Agencies?, Erika Hernandez, J. Jay Dawes, Robin Marc Orr, Joseph Dulla, Robert G. Lockie Jun 2021

Are There Differences In Fitness Between Recruits From Larger (Hosting) And Smaller (Participating) Law Enforcement Agencies?, Erika Hernandez, J. Jay Dawes, Robin Marc Orr, Joseph Dulla, Robert G. Lockie

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 885-901, 2021. Law enforcement agencies often conduct academy training classes that include recruits hired by both the larger hosting agency (HA), and by smaller participating agencies (PA). HAs that need to fill more positions may have recruits with a wide range of fitness levels. Smaller agencies may be more selective in their hiring as they do not have as many available positions. This study compared HA and PA recruit fitness prior to academy. Retrospective analysis was conducted on 11 academy classes, incorporating 742 HA recruits (602 males, 140 females) and 99 PA recruits (82 …

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A Community-Based Boxing Program Is Associated With Improved Balance In Individuals With Parkinson’S Disease, Abbie Moore, Enoch Yee, Brad W. Willis, Evan L. Prost, Aaron D. Gray, J. Bryan Mann Jun 2021

A Community-Based Boxing Program Is Associated With Improved Balance In Individuals With Parkinson’S Disease, Abbie Moore, Enoch Yee, Brad W. Willis, Evan L. Prost, Aaron D. Gray, J. Bryan Mann

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 876-884, 2021. In alignment with efforts to mitigate the negative health consequences of Parkinson’s Disease (PD), the purpose of this investigation was to examine if participation in a community-based boxing program (CBP) was associated with improvements in balance and fall risk reduction among individuals with PD. In this retrospective cross-sectional study, de-identified data from 12 individuals with PD participating in a CBP was examined. Participants included those with a Hoehn and Yahr stage between 1 and 3, averaging 2.8 ± 0.8 CBP sessions per week for 6.1 ± 0.8 months between testing. Baseline and …

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Hip Flexion Angles During Supine Range Of Motion And Bodyweight Squats, Angeli J. Mata, Hidetaka Hayashi, Phillip A. Moreno, Robert I. Dudley, Eric A. Sorenson Jun 2021

Hip Flexion Angles During Supine Range Of Motion And Bodyweight Squats, Angeli J. Mata, Hidetaka Hayashi, Phillip A. Moreno, Robert I. Dudley, Eric A. Sorenson

International Journal of Exercise Science

International Journal of Exercise Science 14(1): 912-918, 2021. During the lowering phase of a squat, it has been observed that a posterior pelvic tilt (PPT) may occur when squatting to full depth. Research suggests that defaulting to compensatory movement strategies, such as PPT, during the squat may correlate with risk of lower extremity and trunk pathology. The purpose of this study was to examine hip flexion (HF) angles at the point when PPT occurs among three conditions: standard squats, heel raise squats, and supine passive HF; analyzing the differences in depth between standard and heel raise squats; and calculating differences …

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The Effects Of Fasting Or Ketogenic Diet On Endurance Exercise Performance And Metabolism In Female Mice, Lola Holcomb, Caitlin O'Neill, Elizabeth Dewitt, Stephen C. Kolwicz Jr. Jun 2021

The Effects Of Fasting Or Ketogenic Diet On Endurance Exercise Performance And Metabolism In Female Mice, Lola Holcomb, Caitlin O'Neill, Elizabeth Dewitt, Stephen C. Kolwicz Jr.

Health Sciences Faculty Publications

The promotion of ketone body (KB) metabolism via ketosis has been suggested as a strategy to increase exercise performance. However, studies in humans and animals have yielded inconsistent results. The purpose of the current study was to examine the effects of ketosis, achieved via fasting or a short-term ketogenic diet (KD), on endurance exercise performance in female mice. After 8 h of fasting, serum KB significantly increased and serum glucose significantly decreased in fasted compared to fed mice. When subjected to an endurance exercise capacity (EEC) test on a motorized treadmill, both fed and fasted mice showed similar EEC performance. …

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Training On A Lower Body Positive Pressure Treadmill With Body Weight Support Does Not Improve Aerobic Capacity, David K. Lee, Natalie Maltz, James Becker, Joshua A. Cotter Jun 2021

Training On A Lower Body Positive Pressure Treadmill With Body Weight Support Does Not Improve Aerobic Capacity, David K. Lee, Natalie Maltz, James Becker, Joshua A. Cotter

International Journal of Exercise Science

International Journal of Exercise Science 14(7): 829-839, 2021. This study examined the physiological changes resulting from training on a lower body positive pressure treadmill (LBPPT) at three different levels of body weight support (BWS). Thirty-three healthy college aged students (22.3 ± 3.1 years) completed the study. Participants performed a graded exercise test (GXT) to exhaustion and were placed into one of three experimental groups corresponding to 100%, 75%, and 50% of their normal BW. Participants trained at their experimental BW levels for eight-weeks. Training speed was monitored by heart rate (HR) and speed was adjusted to elicit approximately 60% of …

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The Impact Of Aquatic Based Plyometric Training On Jump Performance: A Critical Review, Pryse M. Mullenax, Quincy Johnson, Michael A. Trevino, Douglas B. Smith, Bert H. Jacobson, J. Jay Dawes Jun 2021

The Impact Of Aquatic Based Plyometric Training On Jump Performance: A Critical Review, Pryse M. Mullenax, Quincy Johnson, Michael A. Trevino, Douglas B. Smith, Bert H. Jacobson, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 815-828, 2021. There is evidence to suggest that aquatic plyometric training (APT) may be an effective and safer alternative to traditional land-based plyometric training (LPT) when training to increase jump performance. The aim of this review was to critically examine the current literature regarding the effects of APT vs. LPT on jump performance in athletic populations. Key terms were employed in five separate databases to complete the current review. Available articles were screened for inclusion and exclusion criteria to determine which studies were deemed eligible for review. Outcome measure in these studies included those …

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Resistance Training As Therapeutic Management In Women With Pcos: What Is The Evidence?, Pamela J. Wright, Cynthia F. Corbett, Bernardine M. Pinto, Robin M. Dawson, Michael Wirth Jun 2021

Resistance Training As Therapeutic Management In Women With Pcos: What Is The Evidence?, Pamela J. Wright, Cynthia F. Corbett, Bernardine M. Pinto, Robin M. Dawson, Michael Wirth

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 840-854, 2021. Polycystic ovary syndrome (PCOS), the most common chronic endocrinopathy and the leading cause of infertility in women, has significant clinical consequences, including cardiovascular, endocrinological, oncological, and psychological co-morbidities. Endocrine Society Clinical Practice Guidelines on the Diagnosis and Treatment of PCOS recommend exercise and physical activity as first-line treatment to combat chronic disease risk. However, details about what type of exercise are not provided. Given the known beneficial effects of resistance training on the management of other chronic diseases, the purpose of this scoping review was to evaluate the scientific evidence about the …

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Mobility Improvements After A High-Cadence Dynamic Cycling Intervention In An Individual With Motor Neuron Disease: A Case Study, Kristin Noll, Bryan T. Dowdell, Angela L. Ridgel Jun 2021

Mobility Improvements After A High-Cadence Dynamic Cycling Intervention In An Individual With Motor Neuron Disease: A Case Study, Kristin Noll, Bryan T. Dowdell, Angela L. Ridgel

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 791-801, 2021. Previous exercise studies in individuals with motor neuron disease have shown some positive benefits but the stress of regular exercise could result in overuse weakness in this population. The purpose of this case study is to determine the efficacy, and tolerability of a high-cadence dynamic cycling intervention in an individual with motor neuron disease. A 67-year-old male with significant lower extremity weakness and a diagnosis of idiopathic motor neuron disease completed six 30-minute sessions of high cadence dynamic cycling over a two-week period using a custom-built motorized ergometer with the motor speed …

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