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Articles 871 - 900 of 3176

Full-Text Articles in Exercise Physiology

Getting In: Safe Water Entry Competencies, Kevin Moran Dr, Jennifer Blitvich, Lauren Petrass, Keith Mcelroy Feb 2021

Getting In: Safe Water Entry Competencies, Kevin Moran Dr, Jennifer Blitvich, Lauren Petrass, Keith Mcelroy

International Journal of Aquatic Research and Education

In high income countries, jumping and diving into water are a small but persistent cause of death and serious injury especially among male youth and young adults. Although water entries maintain a high media profile, little is known about what entry competencies and underlying water safety knowledge youth bring to this practice. Undergraduates enrolled in aquatics (N= 76) completed a survey before attempting 7 entry jumping and diving tasks. While safety attitudes and self-reported behaviours were generally good, considerable variation in practical entry competence was evident. Most completed a deep-water compact jump (87%) and PFD jump (88%) with …

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Perceptions Of Water Competencies, Drowning Risk And Aquatic Participation Among Older Adults, Teresa Stanley, Kevin Moran Feb 2021

Perceptions Of Water Competencies, Drowning Risk And Aquatic Participation Among Older Adults, Teresa Stanley, Kevin Moran

International Journal of Aquatic Research and Education

New Zealand has an aging population and, despite falling drowning tolls in all other age groups (WSNZ, 2019c), older adults have continued to drown in both increasing numbers and proportion. The reasons for this are not well understood since very little drowning research has focused on older people. A water safety survey (N = 389) seeking information on older adults’ aquatic recreational practices and perceptions of safety was conducted at the end of the summer season, 2019. Most adults (86%, n = 335) reported some aquatic activity in the previous year, but those aged 65+ years (66%) were significantly …

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In This Issue (13:2), Stephen J. Langendorfer Ph.D. Feb 2021

In This Issue (13:2), Stephen J. Langendorfer Ph.D.

International Journal of Aquatic Research and Education

front matter to Volume 13, Issue 2

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Water Safety Education Programs In Culturally And Linguistically Diverse Seattle Communities: Program Design And Pilot Evaluation, William A. Koon, Elizabeth Bennett, Sarah Stempski, Jennifer Blitvich Feb 2021

Water Safety Education Programs In Culturally And Linguistically Diverse Seattle Communities: Program Design And Pilot Evaluation, William A. Koon, Elizabeth Bennett, Sarah Stempski, Jennifer Blitvich

International Journal of Aquatic Research and Education

Drowning is a public health concern that disproportionally affects children and minorities in Washington State. Community health educators from Seattle Children’s Hospital designed a Water Safety Education and Lifejacket Giveaway Program for low-income parents of preschool-aged children from culturally and linguistically diverse backgrounds. The program was interpreted into multiple languages and parents and children in attendance received free lifejackets. The mixed-methods pilot evaluation of this program found statistically significant relationships between language and self-reported parent swim skill level (English-speaker OR 4.6; 95%CI: 1.84 – 11.54); and confidence of keeping one’s child safe (English-speaker OR 3.34; 95%CI: 1.10 – 10.4). Additionally, …

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Surfboard Paddling Technique And Neuromechanical Control: A Narrative Review, Wynand Volschenk, Zachary J. Crowley-Mchattan, John W. Whitting, Rudi A. Meir, Alec K. Mckenzie Feb 2021

Surfboard Paddling Technique And Neuromechanical Control: A Narrative Review, Wynand Volschenk, Zachary J. Crowley-Mchattan, John W. Whitting, Rudi A. Meir, Alec K. Mckenzie

International Journal of Aquatic Research and Education

Surfboard paddling is an essential activity when surfing. Research investigating surfboard paddling, especially as it pertains to neuromechanical control and techniques used, is limited. Previous research made use of swim ergometers to examine surfboard paddling demands. The validity of using swim ergometers in surfboard paddling research and training deserves further analysis. To establish ecologically valid findings, researchers have begun to use swim flumes and still-water paddling environments to investigate paddling efficiency and technique. This emerging body of research has reported that muscle activation patterns, intensities, and timings differ as surfers move through different paddle stroke phases. A deeper understanding of …

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Acute Effects Of Foam Rolling On Cycling Performance: A Randomized Cross-Over Study, Julio Benvenutti Bueno De Camargo, Paulo Henrique Barbosa, Matheus Moraes, Tiago Volpi Braz, Felipe Alves Brigatto, Danillo Rodrigues Batista, Guilherme Businari, Charlini Hartz, Ricardo Simoes, Marcelo Saldanha Aoki, Charles Ricardo Lopes Feb 2021

Acute Effects Of Foam Rolling On Cycling Performance: A Randomized Cross-Over Study, Julio Benvenutti Bueno De Camargo, Paulo Henrique Barbosa, Matheus Moraes, Tiago Volpi Braz, Felipe Alves Brigatto, Danillo Rodrigues Batista, Guilherme Businari, Charlini Hartz, Ricardo Simoes, Marcelo Saldanha Aoki, Charles Ricardo Lopes

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 274-283, 2021. Acute foam rolling protocols may increase range of motion without a negative impact on muscle performance. The main purpose of the present study was to investigate the acute effects of foam rolling on cycling performance (mean power and maximal power), affect and perceived exertion. A secondary aim was to assess the effect of foam rolling on post-exercise muscle soreness. In a random order, ten recreationally trained cyclists (age: 26 ± 5 years; height 1.76 ± 0.06 m; total body mass 78.3 ± 19.8 kg; cycling experience: 5.6 ± 5.3 years; 4.1 ± …

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Evaluating The Clinical Utility Of Daily Heart Rate Variability Assessment For Classifying Meaningful Change In Testosterone-To-Cortisol Ratio: A Preliminary Study, Justin A. Deblauw, Derek A. Crawford, Brady K. Kurtz, Nicholas B. Drake, Katie M. Heinrich Feb 2021

Evaluating The Clinical Utility Of Daily Heart Rate Variability Assessment For Classifying Meaningful Change In Testosterone-To-Cortisol Ratio: A Preliminary Study, Justin A. Deblauw, Derek A. Crawford, Brady K. Kurtz, Nicholas B. Drake, Katie M. Heinrich

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 260-273, 2021. The study purpose was to determine the relationship of resting heart rate variability (HRV) and testosterone to cortisol (T:C) ratio, along with the diagnostic ability of HRV to assess changes in T:C ratio during a 9-week high-intensity functional training intervention. Eight recreationally-active men (n = 4, age 24.25 ± 1.75 yrs, height 181.25 ± 3.86 cm, weight 79.68 ± 11.66 kg) and women (n = 4, age 26 ± 3.6 yrs, height 164.25 ± 3.3, weight 73.4 ± 8.42) completed daily HRV measurements (HRVdaily) using photoplethysmography via a commercially-available smartphone …

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The Influence Of Education On The Nutritional Knowledge Of Certified Fitness Professionals, Bridget F. Melton, Joelle Romanchik-Cerpovicz, Greg A. Ryan, Catherine Gallagher Feb 2021

The Influence Of Education On The Nutritional Knowledge Of Certified Fitness Professionals, Bridget F. Melton, Joelle Romanchik-Cerpovicz, Greg A. Ryan, Catherine Gallagher

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 239-249, 2021. The American Fitness Industry has seen progressive success with recent increases in facility memberships and annual revenues of fitness centers. The number of fitness trainers and instructors in the United States has persisted this growth and is projected to grow over the next decade. However, only a few known studies have investigated the nutritional education of fitness professionals. This preliminary study explores the education and knowledge among certified fitness professions (CFPs) in the United States. A cross-sectional, descriptive survey design was utilized with a convenience sample of 120 female participants from the …

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Dark Chocolate Supplementation Elevates Resting Energy Expenditure In Exercise Trained Females, Katie M. Presler, Michael Webster Feb 2021

Dark Chocolate Supplementation Elevates Resting Energy Expenditure In Exercise Trained Females, Katie M. Presler, Michael Webster

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 250-259, 2021. Several recent reports have indicated positive health and exercise benefits of (-)-epicatechin-rich cocoa products. This study investigated the influence of dark chocolate (DC) supplementation on resting and steady state exercise metabolism in a group of athletically fit females. Using a randomized, single-blind design, 18 exercise trained female subjects were assigned to a 30-d supplementation with either 20g· d-1 of 70% DC (n = 9) or a calorically matched white chocolate (WC) (n = 9). Pre-supplementation (PRE), subjects underwent indirect calorimetry assessment for resting energy expenditure (REE) and exercise energy …

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Comparison Of The Three-Site And Seven-Site Measurements In Female Collegiate Athletes Using Bodymetrix, Amanda M. Elsey, Alister K. Lowe, Ashley N. Cornell, Paul N. Whitehead, Ryan T. Conners Jan 2021

Comparison Of The Three-Site And Seven-Site Measurements In Female Collegiate Athletes Using Bodymetrix, Amanda M. Elsey, Alister K. Lowe, Ashley N. Cornell, Paul N. Whitehead, Ryan T. Conners

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 230-238, 2021. One method to measure body composition that is gaining popularity is the BodyMetrix™, which uses A-mode ultrasound. A-mode ultrasound, when used with the BodyMetrix™, has been found to be a reliable and a cost-effective tool for measuring overall body fat percentage. Furthermore, the portability and short duration testing features of the BodyMetrix™, allows for testing of a large group of athletes inside or outside of a clinical setting. Despite these advantages, research regarding the BodyMetrix™ is limited and has primarily focused on the seven-site testing technique. However, the three-site technique allows for …

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Acetic Acid Supplementation: Effect On Resting And Exercise Energy Expenditure And Substrate Utilization, Kolton M. Cobb, Domenico A. Chavez, Jonathan D. Kenyon, Zachary J. Hutelin, Michael Webster Jan 2021

Acetic Acid Supplementation: Effect On Resting And Exercise Energy Expenditure And Substrate Utilization, Kolton M. Cobb, Domenico A. Chavez, Jonathan D. Kenyon, Zachary J. Hutelin, Michael Webster

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 222-229, 2021. The purpose of this study was to investigate the influence of acetic acid (apple cider vinegar; ACV) supplementation on resting and exercise energy expenditure and substrate utilization. Using a randomized, double blind, crossover design, 16 healthy subjects were supplemented for 4 d with either ACV (30-ml/d) mixed in 1 L of a non-nutritive lemon-flavored drink or a placebo (PLA). They were then assessed via indirect calorimetry for resting energy expenditure (REE) and substrate utilization. This was immediately followed by the assessment of steady state cycling exercise energy expenditure at 40 W (EEE-40) …

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Ground Reaction Forces And Temporal Characteristics Define Cutting Performance, Matthew L. Welinski, Lindsey N. Lee, Blake Mcbroom, Bassel Mufarreh, Lex Gidley Jan 2021

Ground Reaction Forces And Temporal Characteristics Define Cutting Performance, Matthew L. Welinski, Lindsey N. Lee, Blake Mcbroom, Bassel Mufarreh, Lex Gidley

International Journal of Exercise Science

International Journal of Exercise Science 14(1): 211-221, 2021. Moderate angle cutting maneuvers (between 45º and 90º) are common and essential performance skills for success in multidirectional sports. Research addresses the injury risks of cutting but few studies have attempted to quantify the performance of the cut itself. PURPOSE: To identify any anthropometric, kinematic, and/or kinetic markers of a high-performance cut so they may be taught and lead to more effective training. METHODS: Ten college-aged male athletes (mass 73.97 ± 8.77kg, height 1.81 ± 0.07m) and ten non-athletes (mass 87.37 ± 13.93kg, height 1.85 ± 0.04m) completed five moderate angle cutting …

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Influence Of Trunk Position During Three Lunge Exercises On Muscular Activation In Trained Women, Ewertton De Souza Bezerra, Fernando Diefenthaeler, João Pedro Nunes, Raphael Luiz Sakugawa, Isabel Heberle, Bruno M. Moura, Antônio R. P. Moro, Giuseppe Marcolin, Antonio Paoli Jan 2021

Influence Of Trunk Position During Three Lunge Exercises On Muscular Activation In Trained Women, Ewertton De Souza Bezerra, Fernando Diefenthaeler, João Pedro Nunes, Raphael Luiz Sakugawa, Isabel Heberle, Bruno M. Moura, Antônio R. P. Moro, Giuseppe Marcolin, Antonio Paoli

International Journal of Exercise Science

International Journal of Exercise Science 14(1): 202-210, 2021. The present study aimed to compare the activation of the lower lumbar erector spinae, gluteus maximus, biceps femoris, and rectus femoris in two trunk positions (straight, and inclined) during three lunge exercises (static, step-forwarding, and walking) in trained young women in a randomized crossover design. Twelve women (24 ± 3 years) were selected and performed the lunge exercise with an overload of 30% of body weight in six conditions to analyze muscle activation via surface electromyography signals. Higher activation in the erector spinae (%MVIC) were observed (p < 0.05) when trunk position was inclined (straight = 20 ± 15, inclined = 40 ± 29) and during the walking lunge condition (static = 24 ± 16, forward = 26 ± 22, walking = 40 ± 33). Higher activation in the gluteus maximus was observed during step-forward and walking lunges conditions (static = 31 ± 12, forward = 54 ± 20, walking = 58 ± 30). All conditions displayed similar activations in the biceps femoris and rectus femoris (p > 0.05). Results indicate …

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Rating Of Perceived Exertion In Three-Minute Step Test In Children With Cystic Fibrosis, Amanda Paiva Silva, Érika Veiga Araújo, Igor Pereira Machado, Lívia Ferreira Alves, Marcos Filipe Da Silva Mello, Pedro Henrique De Almeida Silva, Isabella Rodrigues Dias, Viviane Soares Jan 2021

Rating Of Perceived Exertion In Three-Minute Step Test In Children With Cystic Fibrosis, Amanda Paiva Silva, Érika Veiga Araújo, Igor Pereira Machado, Lívia Ferreira Alves, Marcos Filipe Da Silva Mello, Pedro Henrique De Almeida Silva, Isabella Rodrigues Dias, Viviane Soares

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 177-186, 2021. The purpose of the study was to assess whether there are differences in cardiorespiratory fitness between children with and without cystic fibrosis (CF). Ten children with CF attended at a referral center for the treatment of CF and 13 children without CF were evaluated. The average age of the children with CF was 10.40 (3.13) years and those without CF was 9.39 (3.25) years. The children performed the three-minute step test with monitoring of hemodynamic parameters and the rating of perceived exertion (RPE) every minute. Oxygen desaturation of 4% during the test …

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Structured Exercise In Cancer Survivors: Is It Enough For Neural, Mental Health And Well-Being?, Peter Smoak, Victoria Flores, Nicholas Harman, Jonathon Lisano, Reid Hayward, Laura Stewart Jan 2021

Structured Exercise In Cancer Survivors: Is It Enough For Neural, Mental Health And Well-Being?, Peter Smoak, Victoria Flores, Nicholas Harman, Jonathon Lisano, Reid Hayward, Laura Stewart

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 162-176, 2021. The purpose of this cross-sectional study was to explore physical activity, depression, fatigue, and quality of life (QOL), and their relationship to brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) in cancer survivors enrolled in a structured exercise program. Participants were recruited into two groups: in-treatment (IT), currently receiving chemotherapy and/or radiotherapy, and out of treatment (OT), not undergoing therapy. Participants wore accelerometers for 7 days and completed cardiorespiratory fitness, muscular strength, and depression, fatigue, and QOL assessments. Circulating BDNF and NGF concentrations were obtained using enzyme-linked immunosorbent assays. Thirty-two participants …

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Comparison Of Emg Activity Between Single-Leg Deadlift And Conventional Bilateral Deadlift In Trained Amateur Athletes - An Empirical Analysis, Wiktor Piotr Diamant, Stephan Geisler, Tim Havers, Axel Knicker Jan 2021

Comparison Of Emg Activity Between Single-Leg Deadlift And Conventional Bilateral Deadlift In Trained Amateur Athletes - An Empirical Analysis, Wiktor Piotr Diamant, Stephan Geisler, Tim Havers, Axel Knicker

International Journal of Exercise Science

International Journal of Exercise Science 14(1): 187-201, 2021. The purpose of the study was to compare the normalized-electromyographic (NEMG) activity of the gluteus maximus (GMAX), gluteus medius (GMED), biceps femoris (BF) and erector spinae (ES) muscles during the single-leg deadlift (SLDL) and the conventional-deadlift (DL). Additionally, a potential influence of body height on the NEMG activity was examined. Fifteen training-experienced male subjects completed the study. SLDL showed significantly higher average concentric NEMG values of the GMED (77.6% vs. 59.3% [p = 0.002, ES = 1.0]) and BF (82.1% vs. 74.2% [p = 0.041, ES = 0.6]). Significantly lower …

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Effectiveness Of A Computerized Cognitive Training Program For Reducing Head Impact Kinematics In Youth Ice Hockey Players, Melissa S. Difabio, Thomas A. Buckley Jan 2021

Effectiveness Of A Computerized Cognitive Training Program For Reducing Head Impact Kinematics In Youth Ice Hockey Players, Melissa S. Difabio, Thomas A. Buckley

International Journal of Exercise Science

International Journal of Exercise Science 14(1): 149-161, 2021. Cognitive training (CT) is an effective technique to improve neurological performance, but has not been investigated as a head impact primary prevention strategy. The purpose of this study was to investigate the CT’s effectiveness in reducing head impact kinematics in youth ice hockey players. Twenty youth were divided into two groups: a CT and Control group. The CT group performed two 30-minute sessions of IntelliGym CT weekly for 20 weeks and the control group performed two 30-minute sessions weekly evaluating hockey videos. The dependent variables, number of head impacts, cumulative linear acceleration …

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Effects Of Heart Rate Biofeedback, Sleep, And Alertness On Marksmanship Accuracy During A Live-Fire Stress Shoot, Jared Hornsby, Brittany Johnson, Donald P. Meckley, Anna Blackley, Will Peveler, Jeffrey Lowes, J. Jay Dawes Jan 2021

Effects Of Heart Rate Biofeedback, Sleep, And Alertness On Marksmanship Accuracy During A Live-Fire Stress Shoot, Jared Hornsby, Brittany Johnson, Donald P. Meckley, Anna Blackley, Will Peveler, Jeffrey Lowes, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 123-133, 2021. On the job, law enforcement may be required to utilize lethal force to maintain personal or public safety. Officers’ attention to detail, decision-making, and marksmanship accuracy (MA) may be impaired by reduced sleep, increased heart rate (HR), and breathing rate (BR). HR biofeedback (emWave, EW) may help mitigate these impairments. This study sought to determine the impact EW had on MA, stress shoot time-to-completion (TTC), HR and BR versus placebo (PLA). Ten active-duty police officers volunteered for this study. Officers completed two live-fire stress shoots on a 25-m gun range (i.e., familiarization, …

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Psychological Status During And After The Preparation Of A Long-Distance Triathlon Event In Amateur Athletes, Vincent Gosselin Boucher, Maxime Caru, Sarah-Maude Martin, Maxime Lopes, Alain Steve Comtois, Francois Lalonde Jan 2021

Psychological Status During And After The Preparation Of A Long-Distance Triathlon Event In Amateur Athletes, Vincent Gosselin Boucher, Maxime Caru, Sarah-Maude Martin, Maxime Lopes, Alain Steve Comtois, Francois Lalonde

International Journal of Exercise Science

International Journal of Exercise Science 14(5): 134-148, 2021. Preparation for an endurance event among amateur athletes requires a major commitment on their part. Knowing amateur athletes’ psychological characteristics during a training period should be a priority for coaches and athletes. The aim of our longitudinal study was to characterize the psychological profile of amateur athletes over a training period of six months prior to and after a long-distance triathlon. Thirty-two amateur athletes (13 females; 19 males; 1.5±1.3 years of experience) were recruited for this observational study. All participants (39±9.9 years old; weighs 73±12.9 kg; measure 172±10.2 cm) underwent a physical …

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A Short-Term Paleolithic Dietary Intervention Does Not Alter Adipokines Linked To Adiposity, Rachel M. Graff, Kristofer Jennings, Natalie A. Davies, Andres E. Carrillo, Emily C. Lavoy, Edward J. Ryan, Melissa M. Markofski Jan 2021

A Short-Term Paleolithic Dietary Intervention Does Not Alter Adipokines Linked To Adiposity, Rachel M. Graff, Kristofer Jennings, Natalie A. Davies, Andres E. Carrillo, Emily C. Lavoy, Edward J. Ryan, Melissa M. Markofski

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 113-122, 2021. The Paleolithic diet, characterized by an emphasis on hunter-gatherer type foods accompanied by an exclusion of grains, dairy products, and highly processed food items, is often promoted for weight loss and a reduction in cardiometabolic disease risk factors. Specific adipokines, such as adiponectin, omentin, nesfatin, and vaspin are reported to be dysregulated with obesity and may respond favorably to diet-induced fat loss. We aimed to evaluate the effects of an eight-week Paleolithic dietary intervention on circulating adiponectin, omentin, nesfatin, and vaspin in a cohort of physically inactive, but otherwise healthy adults. Methods: …

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Lumbar Multifidus Muscle Thickness During Graded Quadruped And Prone Exercises, Konstantinos Dafkou, Eleftherios Kellis, Athanasios Ellinoudis, Chrysostomos Sahinis Jan 2021

Lumbar Multifidus Muscle Thickness During Graded Quadruped And Prone Exercises, Konstantinos Dafkou, Eleftherios Kellis, Athanasios Ellinoudis, Chrysostomos Sahinis

International Journal of Exercise Science

International Journal of Exercise Science 14(7): 101-112, 2021. Exercises for lumbar multifidus (LM) muscle are important for injury and low back pain prevention and treatment. This study examined the differences in LM contraction thickness between variations of the superman and bird dog exercises. Twenty-one recreational athletes performed the superman exercise from the prone position with the following grading: rest, right upper extremity lift (RU), right lower extremity (RL) and upper and lower extremities lift (UL). They also performed the following bird dog variations from the quadruped position: rest, RU, RL and left upper - right lower extremity lift (LURL). LM …

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Effect Of Large Versus Small Range Of Motion In The Various Intensities Of Eccentric Exercise-Induced Muscle Pain And Strength, Chakravarthy M. Sadacharan, Sumin Seo Jan 2021

Effect Of Large Versus Small Range Of Motion In The Various Intensities Of Eccentric Exercise-Induced Muscle Pain And Strength, Chakravarthy M. Sadacharan, Sumin Seo

International Journal of Exercise Science

International Journal of Exercise Science 14(7): 1-18, 2021. The purpose was to investigate eccentric (ECC) exercise with full range of motion (FROM) induce a greater magnitude of delayed onset muscle soreness (DOMS), pain, functional limitations compared to partial range of motion (PROM; outer 60° of ROM). Thirty-four participants (men and women) aged between 18 and 30 years performed ECC exercise protocol on elbow and knee muscles (5 × 10 repetitions each session) using their 15%/25%/35% of maximal voluntary isometric contraction (MVIC) with PROM (week 2-4) and FROM (week 6-8). Two days a week, ECC exercises and remaining days the subjective …

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Do Critical And Functional Threshold Powers Equate In Highly- Trained Athletes?, Eanna Mc Grath, Nicholas Mahony, Neil Fleming, Conor Raleigh, Bernard Donne Jan 2021

Do Critical And Functional Threshold Powers Equate In Highly- Trained Athletes?, Eanna Mc Grath, Nicholas Mahony, Neil Fleming, Conor Raleigh, Bernard Donne

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 45-59, 2021. The purpose of this investigation was to determine whether Critical Power (CP) and Functional Threshold Power (FTP) can be used interchangeably for a highly-trained group of cyclists and triathletes. CP was ascertained using multiple fixed load trials and FTP determined from a single cycling trial. Three different models for the determination of CP were initially addressed, one hyperbolic (Hmodel) and two linear (Jmodel and Imodel). The Jmodel was identified as most appropriate for a comparison with FTP. The Jmodel and FTP were not found to …

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Simple Bodyweight Training Improves Cardiorespiratory Fitness With Minimal Time Commitment: A Contemporary Application Of The 5bx Approach, Linda R. Archila, William Bostad, Michael J. Joyner, Martin J. Gibala Jan 2021

Simple Bodyweight Training Improves Cardiorespiratory Fitness With Minimal Time Commitment: A Contemporary Application Of The 5bx Approach, Linda R. Archila, William Bostad, Michael J. Joyner, Martin J. Gibala

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 93-100, 2021. Bodyweight training (BWT) is a style of interval exercise based on classic principles of physical education. Limited research, however, has examined the efficacy of BWT on cardiorespiratory fitness. This is especially true for simple BWT protocols that do not require extraordinarily high levels of effort. We examined the effect of a BWT protocol, modelled after the original “Five Basic Exercises” (5BX) plan, on peak oxygen uptake (VO2peak) in healthy, inactive adults (20 ± 1 y; body mass index: 20 ± 5 kg/m2; mean ± SD). Participants were randomized …

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Comparison Of Balance Variables Across Active And Retired Athletes And Age Matched Controls, Caitriona Lee, Neil Fleming, Bernard Donne Jan 2021

Comparison Of Balance Variables Across Active And Retired Athletes And Age Matched Controls, Caitriona Lee, Neil Fleming, Bernard Donne

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 76-92, 2021. Postural control is a major falls risk factor, therefore identifying protective mechanisms is essential. Physical activity enhances postural stability but effect duration has been minimally researched. The current study investigated if prolonged early life training exposure protected neuromuscular balance processes later in life. Static and dynamic balance variables were assessed in 77 healthy adults. Two age ranges (18 - 35yr, young; > 50yr, retired) were divided into weight bearing athlete and control groups; young athlete (YA), young control (YC), retired athlete (RA) and retired control (RC). Static balance was quantified using force platform …

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Acute Beet Juice Supplementation Does Not Improve 30- Or 60-Second Maximal Intensity Performance In Anaerobically Trained Athletes, Scott A. Conger, Clare M. Zamzow, Matthew E. Darnell Jan 2021

Acute Beet Juice Supplementation Does Not Improve 30- Or 60-Second Maximal Intensity Performance In Anaerobically Trained Athletes, Scott A. Conger, Clare M. Zamzow, Matthew E. Darnell

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 60-75, 2021. Research suggests that beet juice is beneficial during aerobic exercise. However, the impact of beet juice during primarily anaerobic exercise is equivocal. The purpose of this study was to determine the effects of acute beet juice supplementation on maximal intensity performance during 30-s and 60-s maximal-intensity cycling sprints. Using a double-blind, crossover-study design, 14 anaerobically trained male hockey players completed six Wingate cycling tests: familiarization trials of a 30-s and 60-s Wingate test, followed by 30-s Wingate placebo/beet juice trials, and 60-s Wingate placebo/beet juice trials. Repeated measures ANOVAs were used to …

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Effect Of Pre-Exercise Ice Slurry Ingestion On Physiological And Perceptual Measures In Athletes With Spinal Cord Injuries, Alexis Moore, Kelly Pritchett, Robert C. Pritchett, Elizabeth Broad Jan 2021

Effect Of Pre-Exercise Ice Slurry Ingestion On Physiological And Perceptual Measures In Athletes With Spinal Cord Injuries, Alexis Moore, Kelly Pritchett, Robert C. Pritchett, Elizabeth Broad

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 19-32, 2021. Athletes with cervical level spinal cord injuries (SCI) have an impaired ability to thermoregulate during exercise, leading to an increased core temperature (Tcore) due to a decrease in sweat response. Elevated Tcore may result in premature onset of fatigue and decreased athletic performance. Therefore, precooling techniques that decrease Tcore before exercise may increase the storage capacity for metabolic heat production, thereby delaying the time before reaching a critically high Tcore. The purpose of this study was to investigate the effects of pre-exercise ice slurry ingestion …

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Ankle-Knee Initial Contact Angle And Latency To Maximum Angle Are Affected By Prolonged Run, Sydni Wilhoite, Jessica Mutchler, Barry Munkasy, Li Li Jan 2021

Ankle-Knee Initial Contact Angle And Latency To Maximum Angle Are Affected By Prolonged Run, Sydni Wilhoite, Jessica Mutchler, Barry Munkasy, Li Li

International Journal of Exercise Science

International Journal of Exercise Science 14(1): 33-44, 2021. The initial contact and midstance angles may influence injury risk. Previous literature has not assessed these angles under the influence of new footwear for a non-exhaustive prolonged run or the relationship between the angles. To assess lower extremity kinematic changes and the relationship between kinematic parameters at initial contact and midstance with prolonged running under the influence of different types of footwear. Twelve experienced, recreational runners (6 male; 6 female; 24.8 ± 8.4 years; 70.5 ± 9.3 kg; 174.1 ± 9.7 cm) ran for 31 minutes at a self-selected pace for three …

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The Effects Of Concussion On Quantity Of Sleep And Quality Of Sleep, Taren Asheton Bone Jan 2021

The Effects Of Concussion On Quantity Of Sleep And Quality Of Sleep, Taren Asheton Bone

Theses, Dissertations and Capstones

This study observed how a concussion's effects change the quantity and quality of sleep in collegiate athletes. There is a lack of research pertaining to this topic, explicitly involving collegiate athletes and the changes in sleep outcomes during concussion recovery from a concussion. The study design is a convenient cohort in the field involving athletes from two local universities. Participants wore a Readiband™ device for seven to ten days or throughout their concussion recovery. There were differences in total minutes in bed and calculated minutes in bed between concussed and non-concussed participants. This study indicates that concussion affects the quantity …

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The Effect Of Warm-Up Protocols On The Occurrence Of Medial Tibial Stress Syndrome In High School Cross Country Athletes, Makayla Mack Jan 2021

The Effect Of Warm-Up Protocols On The Occurrence Of Medial Tibial Stress Syndrome In High School Cross Country Athletes, Makayla Mack

Mahurin Honors College Capstone Experience/Thesis Projects

Medial Tibial Stress Syndrome (MTSS, i.e. shin splints) is among one of the most frequently reported running-related musculoskeletal injuries. Minimal research has investigated the prevention of MTSS with limited evidence supporting few preventative measures. The purpose of this study is to gain a better understanding of which method of warming up could yield the most promising results for the prevention of MTSS in high school cross country athletes and to use this information to further educate coaches and athletes on the most efficacious protocols to implement in the future. METHODS: Participants were recruited via communication with high school cross country …

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