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Exercise Physiology Commons™

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2017

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Articles 91 - 120 of 168

Full-Text Articles in Exercise Physiology

The Effect Of Blood Flow Restriction Training With The Quadmill On Peak Isometric Knee Extensor Strength 2017, Brandon Schrom May 2017

The Effect Of Blood Flow Restriction Training With The Quadmill On Peak Isometric Knee Extensor Strength 2017, Brandon Schrom

Master's Theses

Traditional training methodologies that improve muscular strength use loads as low as 75% of a person’s one-repetition maximum and as high as 110% of a person’s one repetition maximum. With these high loads comes a greater risk for injury. Blood flow restriction (BFR) training is a potential solution to this problem. BFR training originated in Japan, where it was called Kaatsu. With this method of training, a trainee ties a tourniquet around the proximal end of a limb to reduce blood flow to and from the limb’s muscles. The purpose of this study was to determine whether three-weeks of BFR …

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Imposed Versus Affect-Based Resistance Training Intensities On Adherence, Session Affect, Session Perceived Exertion, And Intrinsic Motivation Measures During A Six-Week Program In Novice Female Lifters 2017, Ryan Joseph Brennan May 2017

Imposed Versus Affect-Based Resistance Training Intensities On Adherence, Session Affect, Session Perceived Exertion, And Intrinsic Motivation Measures During A Six-Week Program In Novice Female Lifters 2017, Ryan Joseph Brennan

Master's Theses

The American College of Sports Medicine (ACSM) recommends that individuals perform resistance training exercises at a specific intensity based on external load (percentage of one repetition maximum; %1RM). However, only 29.6% of adults in 2013 reported strength training two or more times per week. Furthermore, individuals lifting at recommended percentages vary in their pleasure and displeasure. Self-selected exercise seems to promote positive affective responses, in part, due to the perceived autonomy. The effects of regulating exercise intensity using affect as opposed to imposed intensities as a means for improved fitness, promoting exercise behavior, and enhancing other psychological outcomes have yet …

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The Relationship Between Ratings Of Perceived Exertion And Heart Rate In Ncaa Division Iii Male Soccer Players 2017, Samuel J. Guider May 2017

The Relationship Between Ratings Of Perceived Exertion And Heart Rate In Ncaa Division Iii Male Soccer Players 2017, Samuel J. Guider

Master's Theses

Every sport has specific physical demands of the human body. The amount of physiological load that an athlete endures during a bout of exercise can be described as training load (TL). Accurate calculation of training loads within athletes is important when it comes to strength and power development, as well as injury prevention and monitoring fatigue. Common methods used to calculate training loads for athletes include rating of perceived exertion (RPE) based methods, heart rate (HR) based methods, rate of oxygen consumption (VO2) methods, and blood lactate methods. Specifically with NCAA male soccer athletes, HR based methods and RPE based …

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Casein Protein Supplementation In Trained Men And Women: Morning Versus Evening, Jose Antonio Apr 2017

Casein Protein Supplementation In Trained Men And Women: Morning Versus Evening, Jose Antonio

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 479-486, 2017. The purpose of this investigation was to determine the effects of casein supplementation (54 grams) in the morning (Casein-MOR) or evening (Casein-EVE) (90 minutes or less prior to sleep) on measures of body composition and exercise performance in trained men and women. Twenty-six healthy men and women who had been training regularly for greater than 12 months completed this 8-week study (mean±SD; Casein-MOR group [n=14, seven male, seven female]: 30.0±8.2 yr; 170.7±9.5 cm; 70.9±13.9 kg. Casein-EVE group [n=12, nine male, three female]: 28.9±9.5 yr; 172.9±7.3 cm; 72.6±10.9 kg). Subjects in each group …

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Assessment Of Differences In The Anthropometric, Physiological And Training Characteristics Of Finishers And Non-Finishers In A Tropical 161-Km Ultra-Marathon, Philip Ls Tan, Frankie Hy Tan, Andrew N. Bosch Apr 2017

Assessment Of Differences In The Anthropometric, Physiological And Training Characteristics Of Finishers And Non-Finishers In A Tropical 161-Km Ultra-Marathon, Philip Ls Tan, Frankie Hy Tan, Andrew N. Bosch

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 465-478, 2017. This study aimed to compare and determine the differences in the physiological, anthropometric and training characteristics of the finishers (FIN) and non-finishers (N-FIN) in a 161-km race. Two groups of runners (FIN; N=12 and N-FIN; N=14) completed a series of anthropometric and physiological measurements over two separate sessions at least three weeks prior to the race. Training sessions starting from six weeks prior to the race were recorded. Sum of 7 skinfolds, arm and calf girths, VO2max and peak treadmill speed (PTS) were taken during session 1 while the lactate threshold (LT) …

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Demands Of Simulated Commuting Using An Electrically Assisted Bicycle, D. Taylor La Salle, Robert Shute, Matthew Heesch, Dustin Slivka Apr 2017

Demands Of Simulated Commuting Using An Electrically Assisted Bicycle, D. Taylor La Salle, Robert Shute, Matthew Heesch, Dustin Slivka

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 454-464, 2017. The American College of Sports Medicine (ACSM) recommends adults participate in weekly aerobic activity for a minimum of 30 minutes moderate intensity exercise 5 days per week or 20 minutes of vigorous activity 3 days per week. The electrically assisted bicycle may help individuals achieve the ACSM’s aerobic recommendations and introduce inactive individuals to physical activity. To compare the physiological requirements of riding a bicycle with electric pedal assist versus non-assist among healthy active young adults. 6 males and 6 females completed two randomized cycling trials using electric pedal assist (PAB) and …

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Self-Optimization Of Stride Length Among Experienced And Inexperienced Runners, Iain Hunter, James B. Tracy, Jared Ward Apr 2017

Self-Optimization Of Stride Length Among Experienced And Inexperienced Runners, Iain Hunter, James B. Tracy, Jared Ward

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 446-453, 2017. Experienced runners appear to naturally select a stride length which is optimal for minimizing oxygen uptake. However, whether this ability is naturally built into the human body or whether it is learned through experience has not been previously tested. This study investigated whether inexperienced runners are as capable as experienced runners of self-optimizing stride length to minimize oxygen uptake. Thirty-three subjects (nineteen experienced and fourteen inexperienced) ran for twenty-minutes while preferred and economical stride lengths were measured. A t-test checked for differences between the experienced and inexperienced groups in the percent increase …

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A Correlational Study Of Religiosity And Total Body Fat Composition In Collegiate Populations, Courtney Bostrum, Ryan Radtke, Seth A. Paradis Apr 2017

A Correlational Study Of Religiosity And Total Body Fat Composition In Collegiate Populations, Courtney Bostrum, Ryan Radtke, Seth A. Paradis

Applied Health Sciences Student Works

Previous research indicates rising levels of body fat composition in Americans. One contributing factor may be an individual’s degree of religiosity. Although not all, most studies have found religiosity to negatively impact body mass index (BMI) and obesity levels. Minimal research has been conducted regarding the relations between religiosity and body fat percentage. Not only do the overall increasing trends in body fat composition cost the American people between $48 and $68 billion per year in medical care, but excess body fat increases the risk for diabetes, cardiovascular diseases and cancer. Religious factors have been shown to play a role …

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Hypotensive Responses Of Reciprocal Supersets Versus Traditional Resistance Training In Apparently Healthy Men, Claudio Melibeu Bentes, Pablo B. Costa Corresponding Author, Victor Gonçalves Corrêa Neto, Roberto Simão, Gabriel Andrade Paz, Marianna Maia, Tiago Figueiredo, Gabriel Rodrigues Neto, Jefferson S. Novaes, Humberto Miranda Apr 2017

Hypotensive Responses Of Reciprocal Supersets Versus Traditional Resistance Training In Apparently Healthy Men, Claudio Melibeu Bentes, Pablo B. Costa Corresponding Author, Victor Gonçalves Corrêa Neto, Roberto Simão, Gabriel Andrade Paz, Marianna Maia, Tiago Figueiredo, Gabriel Rodrigues Neto, Jefferson S. Novaes, Humberto Miranda

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 434-445, 2017. The purpose of this study was to compare the hypotensive responses of reciprocal supersets (SS) versus traditional training (TRAD) methods. Thirteen men with at least five years of recreational experience in resistance training (RT) volunteered for the study. When completing the TRAD protocol, participants performed the following exercises separately in sequence: chest press (CP), low row (LR), leg extension (LE), leg curl (LC), pull down (PD), and shoulder press (SP). The SS method required participants to complete the same exercises as in the TRAD protocol, but exercises were coupled such that muscles …

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Passion For Academics And Problematic Health Behaviors, Alex T. Bureau, Selen Razon Ph.D, Umit Tokac, Bryan K. Saville, Lawrence W. Judge Apr 2017

Passion For Academics And Problematic Health Behaviors, Alex T. Bureau, Selen Razon Ph.D, Umit Tokac, Bryan K. Saville, Lawrence W. Judge

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 417-433, 2017. According to the Dualistic Model of Passion (39), passion entails valuing, liking, and spending time on an activity. The Dualistic Model also posits two types of passion for activities: harmonious passion (individual voluntarily engages in the activity) and obsessive passion (individual is compelled to engage in the activity). The purpose of the present study was to examine the possible links between college students’ passion for academic activities and problematic health behaviors including smoking, excessive drinking, exercise addiction, disordered eating, and sleepiness, which is a possible indicator of sleep deprivation. Participants (n = …

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Resistance Training Contribute To The Aerobic Components Of An Exercise Session In Adults But Not As Much In Older Adults, Neha Bharti, Travis Hrubeniuk, Andrea Mayo, Martin Senechal, Danielle R. Bouchard Apr 2017

Resistance Training Contribute To The Aerobic Components Of An Exercise Session In Adults But Not As Much In Older Adults, Neha Bharti, Travis Hrubeniuk, Andrea Mayo, Martin Senechal, Danielle R. Bouchard

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 406-416, 2017. Previous research has indicated that active adults are able to achieve moderate intensity as measured via heart rate during a typical resistance training (RT) session. The main objective was to identify if overweight adults and older adults can reach aerobic moderate intensity at a rate comparable to adults displaying a recommended body mass index. Twenty participants in each group were asked to visit a fitness facility twice if they self-reported doing RT for a minimum two days per week. At the first session baseline characteristics and maximal lifting capacity for each RT …

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College Students’ Knowledge Of Recovery Beverage Serving Sizes, Stephanie Lewis, Victoria Baxter, Kim Spaccarotella, Walter Andzel Apr 2017

College Students’ Knowledge Of Recovery Beverage Serving Sizes, Stephanie Lewis, Victoria Baxter, Kim Spaccarotella, Walter Andzel

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 397-405, 2017. Previous research suggests that chocolate milk may be a beneficial recovery beverage, yet little is known about how athletes and students training for careers in sports science or health-related fields interpret recommended recovery beverage serving sizes. This study examined college students’ ability to correctly apply serving size recommendations for chocolate milk and protein powder used during post-exercise recovery and assessed usual consumption of milk as a recovery beverage. College students (34 women, 39 men) poured the amount of chocolate milk they would consume within 90 minutes after exercise unaided and with the …

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The Effect Of Acute Hyperglycemia On Muscular Strength, Power And Endurance, Franklin Lime-Ma, Joshua A. Cotter, Evan E. Schick Apr 2017

The Effect Of Acute Hyperglycemia On Muscular Strength, Power And Endurance, Franklin Lime-Ma, Joshua A. Cotter, Evan E. Schick

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 390-396, 2017. The purpose of this study was to elucidate the impact of acute hyperglycemia on skeletal muscle strength, power, and endurance. Ten male collegiate athletes (age 21.5 ± 1.5 years, height 186 ± 2.03 cm, body mass 108.8 ± 7.6 kg) participated in 2 testing sessions, separated by 7 days and randomized for either high glucose (HG) or control (C) treatment conditions. HG consumed a high glucose drink (2 g glucose/kg body weight) while controls consumed an isocaloric nutrition bar (40% protein, 30% fat, and 30% carbohydrate). Blood glucose (BC) levels for HG …

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Better Health-Related Fitness In Youth: Implications For Public Health Guidelines, Mitch Barton, Allen W. Jackson, Scott B. Martin, James R. Morrow Jr., Trent A. Petrie, Christy A. Greenleaf Apr 2017

Better Health-Related Fitness In Youth: Implications For Public Health Guidelines, Mitch Barton, Allen W. Jackson, Scott B. Martin, James R. Morrow Jr., Trent A. Petrie, Christy A. Greenleaf

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 379-389, 2017. Public health guidelines for physical activity (PA) behaviors are being updated with 2018 as a proposed release date. Currently, ≥60 minutes of daily PA are recommended for youth. Thus, the purpose of this study was to investigate the association between reported days of aerobic PA and health-related fitness (HRF). Participants included 4448 students in grades 6-8. Self-reported days of ≥60 minutes of aerobic PA was obtained. HRF was assessed with FitnessGram. Discriminant analysis indicated that weekly days of aerobic PA related to HRF. Adolescents who participated in ≥5 days of weekly aerobic …

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Time Course Of Changes In Neuromuscular Responses At 30% Versus 70% 1 Repetition Maximum During Dynamic Constant External Resistance Leg Extensions To Failure, Cory M. Smith, Terry J. Housh, Ethan C. Hill, Richard J. Schmidt, Glen O. Johnson Apr 2017

Time Course Of Changes In Neuromuscular Responses At 30% Versus 70% 1 Repetition Maximum During Dynamic Constant External Resistance Leg Extensions To Failure, Cory M. Smith, Terry J. Housh, Ethan C. Hill, Richard J. Schmidt, Glen O. Johnson

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 365-378, 2017. The purpose of the current study was to examine the time course of changes in neuromuscular responses from the vastus medialis (VM) during low versus high intensity dynamic constant external resistance (DCER) leg extension muscle actions to failure. Thirteen men performed DCER leg extensions to failure at 30% and 70% 1-repetition maximum (1-RM) as well as 1-RM measurements pretest and posttest. Electromyogaphy and mechanomyographic signals were measured from the VM. There were no differences in neuromuscular responses pretest versus posttest 1-RM. There were time-dependent differences between the 30% and 70% 1-RM protocols. …

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Effects Of Different Number Of Sets Of Resistance Training On Flexibility, Thalita B. Leite, Pablo B. Costa, Richard D. Leite, Jefferson S. Novaes, Steven J. Fleck, Roberto Simão Apr 2017

Effects Of Different Number Of Sets Of Resistance Training On Flexibility, Thalita B. Leite, Pablo B. Costa, Richard D. Leite, Jefferson S. Novaes, Steven J. Fleck, Roberto Simão

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 354-364, 2017. The aim of this study was to investigate the effects of six months of training with three different number of sets of resistance training on flexibility in young men. Forty-seven men (mean ± SD age = 24 ± 1yrs; body mass = 79.39 ± 9.12 kg; height = 174.5 ± 5.6 cm) were randomly divided into three training groups performing either one set (G1S), three sets (G3S), or five sets (G5S) of all exercises in a resistance training session or a control group (CG). All groups were assessed pre- and post-training for …

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A Low Dose Caffeine And Carbohydrate Supplement Does Not Improve Athletic Performance During Volleyball Competition, David Pfeifer, Kelsey Arvin, Nicholas Haynes, Courtney Herschberger, Matthew S. Renfrow Apr 2017

A Low Dose Caffeine And Carbohydrate Supplement Does Not Improve Athletic Performance During Volleyball Competition, David Pfeifer, Kelsey Arvin, Nicholas Haynes, Courtney Herschberger, Matthew S. Renfrow

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 340-353, 2017. Dietary supplements are widely used to enhance sport performance and the combination of carbohydrate and caffeine (CHO+CAF) has yielded particularly high performance gains. Though the effects of a CHO+CAF supplement have been studied in a laboratory environment, little research exists on the effects of supplementation during competition. Therefore, the purpose of this study was to determine the effects of a CHO+CAF supplement on athletic performance in competition. Eight female collegiate volleyball players completed three testing sessions under three different conditions separated by approximately one week each: CHO+CAF supplement, placebo (PBO), and control …

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The Relationship Of Living Environment With Behavioral And Fitness Outcomes By Sex: An Exploratory Study In College-Aged Students, Kaelah Shaffer, Melissa Bopp, Zack Papalia, Dangaia Sims, Christopher M. Bopp Apr 2017

The Relationship Of Living Environment With Behavioral And Fitness Outcomes By Sex: An Exploratory Study In College-Aged Students, Kaelah Shaffer, Melissa Bopp, Zack Papalia, Dangaia Sims, Christopher M. Bopp

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 330-339, 2017. Although physical activity (PA) is associated with several health benefits, there is a marked decline during college years, which is an influential period for the development of health behaviors. This study examined the relationship of neighborhood and living environment with behavioral (PA and sedentary behavior) and fitness outcomes by sex. Participants were college students that participated in a fitness assessment, followed by a survey that measured self-reported exercise and perception of one’s environment (sidewalks, crime, traffic, access to PA resources in their neighborhood and/or apartment complex). Pearson correlations examined the relationship between …

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How Different Respiratory Rate Patterns Affect Cardiorespiratory Variables And Performance, Harutiun Minas Nalbandian, Zsolt Radak, Jun Taniguchi, Masaki Takeda Apr 2017

How Different Respiratory Rate Patterns Affect Cardiorespiratory Variables And Performance, Harutiun Minas Nalbandian, Zsolt Radak, Jun Taniguchi, Masaki Takeda

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 322-329, 2017. This study aims to elucidate how respiratory rate (RR) patterns may affect respiratory gas exchange variables and performance during incremental intensity- exercise. 10 healthy young men (mean ± SD, age: 20.7 ± 0.5 years, height: 174.3 ± 5.7 cm, and body mass: 72.6 ± 10.4 kg) performed three incremental tests on a cycle ergometer at three different RR (60, 45 and 30 breaths per min) in each trial. During the tests, tidal volume (TV), minute ventilation (VE), fractional content of oxygen (FeO2), fractional content of carbon dioxide (FeCO2), …

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The Determination Of Total Energy Expenditure During And Following Repeated High-Intensity Intermittent Sprint Work, Christopher Irvine, Matthew Laurent, Kaitlyn Kielsmeier, Stephanie Douglas, Matthew Kutz, Adam Fullenkamp Apr 2017

The Determination Of Total Energy Expenditure During And Following Repeated High-Intensity Intermittent Sprint Work, Christopher Irvine, Matthew Laurent, Kaitlyn Kielsmeier, Stephanie Douglas, Matthew Kutz, Adam Fullenkamp

International Journal of Exercise Science

International Journal of Exercise Science 10(3): 312-321, 2017. The purpose of this study was to examine the variation in oxidative, glycolytic, and post-exercise O2 kinetic contribution during two distinct high-intensity interval training (HIIT) protocols using a 1:1 work-to-rest ratio (30:30 sec) and a 2:1 work-to-rest ratio (30:15 sec). HIIT familiarized males (n =6) and females (n = 8) were recruited for this study. All subject underwent 3 testing session, an incremental maximal exertion treadmill test and 30:30 and 30:15 HIIT protocols in a counterbalanced order. Each HIIT protocol measured oxygen consumption (VO2), carbon dioxide production …

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Psychophysiological Tracking Of A Female Physique Competitor Through Competition Preparation, Brandon Jay Rohrig, Robert W. Pettitt, Cherie Pettitt, Todd Kanzenbach Mar 2017

Psychophysiological Tracking Of A Female Physique Competitor Through Competition Preparation, Brandon Jay Rohrig, Robert W. Pettitt, Cherie Pettitt, Todd Kanzenbach

International Journal of Exercise Science

International Journal of Exercise Science 10(2): 301-311, 2017. Natural physique competitions are based on subjective judgments of how a competitor appears on show day. Prior to competition, there is a prolonged dieting phase referred to as contest preparation. The primary goal is to reduce body fat levels while maintaining skeletal muscle mass. The study tracked the physiological and psychological changes for a 24 year old female preparing for a physique competition. Purpose: The study was conducted to describe the physiological and psychological changes of a female physique competitor who engages in long-term contest preparation. Methods: Diet, body composition, blood work, …

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Effects Of Hypobaric And Normobaric Hypoxia On Heart Rate And Blood Oxygen Saturation, Madison Brooks Coleman Mar 2017

Effects Of Hypobaric And Normobaric Hypoxia On Heart Rate And Blood Oxygen Saturation, Madison Brooks Coleman

UNO Student Research and Creative Activity Fair

There has been recent debate on the difference in physiological response between exposure to normobaric hypoxia (oxygen fraction altered) and hypobaric hypoxia (barometric pressure altered). Purpose: To determine the effects of normobaric normoxia (NN), hypobaric hypoxia (HH), and normobaric hypoxia (NH) on heart rate and arterial oxygen saturation (SaO2) after exercise. Methods: Fifteen recreationally active participants (eight males and seven females) completed three separate 1 h cycling bouts at 70% of their peak aerobic capacity. Following each trial, participants recovered in the supine position for 4 h in NN (975 m), HH (4420 m), or NH (4420 m). …

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Human Stress Protein Response To Exercise And The Environment, Rebecca Cuthbert Mar 2017

Human Stress Protein Response To Exercise And The Environment, Rebecca Cuthbert

UNO Student Research and Creative Activity Fair

Stress proteins are molecular chaperones that protect cells from the damaging effects that can be caused by exercise and environmental changes. Cold-inducible RNA binding protein (CIRP) and RNA binding motif protein 3 (RBM3) protect cells from mild hypothermia and hypoxia. They allow cells to rapidly respond to environmental stresses by regulating gene expression. Heat shock proteins 27, 70, and 90 protect skeletal tissue from exercise and heat stress. They accelerate cellular repair and prevent misfolding of proteins. These proteins, especially CIRP and RBM3, have been studied in cell cultures and animal models, but limited data exist in humans. Purpose: To …

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Oxygen Transport In Normobaric Versus Hypobaric Hypoxia, Christina N. Angeli Mar 2017

Oxygen Transport In Normobaric Versus Hypobaric Hypoxia, Christina N. Angeli

UNO Student Research and Creative Activity Fair

BACKGROUND: Various physiological changes occur in the human body when ascending to altitude. Exposure to hypoxia increases heart rate and decreases arterial oxygen saturation (SaO2), with both changes being expedited during exercise. Incremental exercise in ambient conditions decreases muscle oxygenation, specifically with increasing intensity. Previous research has examined heart rate and SaO2 in response to normobaric versus hypobaric hypoxia. However, there is lack of research examining muscle oxygenation in response to these conditions. Therefore, additional research investigating acute responses to normobaric and hypobaric hypoxia during exercise is warranted. PURPOSE: To examine acute responses in arterial and muscle …

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Responses Of Appetite And Appetite Regulating Hormones To Acute Altitude Exposure, Morgan Busboom Mar 2017

Responses Of Appetite And Appetite Regulating Hormones To Acute Altitude Exposure, Morgan Busboom

UNO Student Research and Creative Activity Fair

PURPOSE: To determine the acute response of appetite and appetite regulating hormones after exposure to simulated altitude in resting conditions. METHODS: Seven male and six female recreationally active subjects (height 178±8.1cm, weight: 77.3±24.8kg, body fat: 18.4±5.7%) participated in two, three-hour trials in an environmental chamber with one trial simulating 5000 m altitude (hypoxic) and the other simulating 350 m altitude (control). Blood samples from the antecubital vein were collected prior to entering the environmental chamber and immediately following the three hours of seated rest. Blood samples were analyzed for serum leptin, adiponectin, and ghrelin concentrations via enzyme-linked immunosorbent …

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Effects Of Normobaric And Hypobaric Hypoxia On Mitochondrial Related Gene Expression, Robert J. Shute Mar 2017

Effects Of Normobaric And Hypobaric Hypoxia On Mitochondrial Related Gene Expression, Robert J. Shute

UNO Student Research and Creative Activity Fair

Environmental stimuli such as temperature and hypoxia can influence cellular signaling in the skeletal muscle. Previously we have reported no changes in gene expression related to mitochondrial development with acute exposure to normobaric hypoxia. However, exposure to hypobaric hypoxia may elicit different physiological responses. Purpose: To determine the response of skeletal muscle mitochondrial related gene expression after 4 h of exposure to normobaric normoxia (NN), normobaric hypoxia (NH), and hypobaric hypoxia (HH) after exercise. Methods: Recreationally trained participants (8 male, 7 female) each completed three trials of 1-h cycling at 70% of Wmax. Following exercise, participants sat in …

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Comparison Of Whole-Body Cooling Techniques For Athletes And Military Personnel, Emma A. Nye, Lindsey E. Eberman, Kenneth E. Games, Colin Carriker Mar 2017

Comparison Of Whole-Body Cooling Techniques For Athletes And Military Personnel, Emma A. Nye, Lindsey E. Eberman, Kenneth E. Games, Colin Carriker

International Journal of Exercise Science

International Journal of Exercise Science 10(2): 294-300, 2017. The purpose of this study was to evaluate cooling rates of The Polar Life Pod®, a military protocol and cold water immersion. A randomized, repeated measures design was used to compare three treatment options. Participants exercised in an environmental chamber, where they followed a military march protocol on a treadmill, followed by the application of one of three treatments: Cold water immersion tub (5 – 10 °C), Polar Life Pod® (5 – 10 °C), Ice sheets at onset (5 – 10 °C). Mean cooling rate for CWI was 0.072 ºC/min, 0.046ºC/min for …

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Orchard Sports Injury Classification System 10.1 Plus: An End-User Study, Ashley K. Crossway, Kenneth E. Games, Lindsey E. Eberman, Neil Fleming Mar 2017

Orchard Sports Injury Classification System 10.1 Plus: An End-User Study, Ashley K. Crossway, Kenneth E. Games, Lindsey E. Eberman, Neil Fleming

International Journal of Exercise Science

International Journal of Exercise Science 10(2): 284-293, 2017. The purpose of this study was to establish the level of ease of use and effectiveness of the Orchard Sport Injury Classification System (OSICS) 10.1 Plus for recording injuries and interventions. Three hundred and forty-two (males=148, females=192, no response=2; age=30.9±9.5y; experience=9.1±10.5y) athletic trainers (ATs) in the United States completed the survey. Participants were primarily employed in the secondary school (n=135) or collegiate setting (n=171). Participants entered system includes the OSICS 10.1 to catalog injuries and Current Procedural Terminology (CPT) codes to document interventions. Participants completed an 18-item end-user evaluation to assess the …

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A 15-Week Vitamin D Supplementation And Indoor Cycling Intervention Reduces Exercising Heart Rate, With No Effect On Glycaemic Control In Healthy Adults: A Pilot Investigation., Ffion Curtis, Rhys Thatcher, Sam Rice, Glen Davison Mar 2017

A 15-Week Vitamin D Supplementation And Indoor Cycling Intervention Reduces Exercising Heart Rate, With No Effect On Glycaemic Control In Healthy Adults: A Pilot Investigation., Ffion Curtis, Rhys Thatcher, Sam Rice, Glen Davison

International Journal of Exercise Science

International Journal of Exercise Science 10(2): 274-283, 2017 Significant positive correlations are often observed between vitamin D concentrations and physical activity levels. Whilst this may be due to individuals who are physically active spending time outdoors (i.e. increased opportunity for vitamin D synthesis), there is growing evidence to suggest a more complex relationship between vitamin D status, physical fitness and health outcomes. To explore this further thirty-nine healthy adults were randomly allocated to 15 weeks of exercise training (Ex), no training (NoEx), 2000 IU/day vitamin D (VitD) and/or placebo (Pla) supplementation (giving four possible allocations: NoEx+VitD; NoEx+Pla; Ex+VitD; Ex+Pla). Vitamin …

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Effect Of Caffeine On Near Maximal Blood Pressure And Blood Pressure Recovery In Physically-Active, College-Aged Females, Laura E. Connahan, Christopher A. Ott, Vaughn W. Barry Mar 2017

Effect Of Caffeine On Near Maximal Blood Pressure And Blood Pressure Recovery In Physically-Active, College-Aged Females, Laura E. Connahan, Christopher A. Ott, Vaughn W. Barry

International Journal of Exercise Science

International Journal of Exercise Science 10(2): 266-273, 2017 The purpose of this study is to determine how caffeine affects exercise blood pressure (BP) and active and passive recovery BP after vigorous intensity exercise in physically active college-aged females. Fifteen physically active, ACSM stratified low-risk females (age (y): 23.53 ± 4.07, weight (kg): 60.34 ± 3.67, height (cm): 165.14 ± 7.20, BMI (kg/m2): 22.18 ± 1.55) participated in two Bruce protocol exercise tests. Before each test participants consumed 1) a placebo or 2) 3.3 mg·kg-1 of caffeine at least one hour before exercise in a counterbalanced double-blinded fashion. …

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