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Body Composition, Muscular Performance, And Free Testosterone Following 12-Weeks Of Protein Supplementation And Resistance Training In Men Aged 35-55, Matthew Steven Stone 2018 University of Arkansas, Fayetteville

Body Composition, Muscular Performance, And Free Testosterone Following 12-Weeks Of Protein Supplementation And Resistance Training In Men Aged 35-55, Matthew Steven Stone

Theses and Dissertations

PURPOSE: The purpose of this study was to investigate the effects of 12 weeks of protein supplementation and Autoregulatory Progressive Resistance Exercise (APRE) training on measures of body composition, muscular performance, and free testosterone in middle-aged men. METHODS: Untrained males (n = 35; 43.3 ± 6.6 years) participated in this study. Lean mass (LM) and fat mass (FM) were measured via Dual Energy X-ray Absorptiometry (DEXA), while strength was measured utilizing one repetition maximum (1RM), endurance measured using maximum repetitions completed (REPS) at 75% 1RM for the bench and leg press, and free testosterone was measured using changes in serum ...


Acute Cardiometabolic Responses To Medicine Ball Interval Training In Children, Avery D. Faigenbaum, Jie Kang, Nicholas A. Ratamess, Anne C. Farrell, Nicole Ellis, Ira Vought, Jill Bush 2018 The College of New Jersey

Acute Cardiometabolic Responses To Medicine Ball Interval Training In Children, Avery D. Faigenbaum, Jie Kang, Nicholas A. Ratamess, Anne C. Farrell, Nicole Ellis, Ira Vought, Jill Bush

International Journal of Exercise Science

International Journal of Exercise Science 11(4): 886-899, 2018. Medicine ball interval training (MBIT) has been found to be an effective exercise modality in fitness programs, yet the acute physiological responses to this type of this exercise in youth are unknown. The purpose of this study was to examine the acute cardiometabolic responses to MBIT in children. Fourteen children (mean age 10.1 ± 1.3 yr) were tested for peak oxygen uptake (VO2peak) on a treadmill and subsequently (> 48 hours later) performed a progressive 10 min MBIT protocol of 5 exercises (EX): standing marches (EX1), alternating lunges (EX2 ...


Measurement Of Lumbar Multifidus Asymmetry In Amateur Cricket Pace Bowlers Using Real-Time Ultrasound, Matthew Toumazou, Carol A. Flavell, Susan J. Gordon 2018 James Cook University, Australia

Measurement Of Lumbar Multifidus Asymmetry In Amateur Cricket Pace Bowlers Using Real-Time Ultrasound, Matthew Toumazou, Carol A. Flavell, Susan J. Gordon

International Journal of Exercise Science

International Journal of Exercise Science 11(3): 875-885, 2018. Objectives: To determine if lumbar multifidus asymmetry existed between the fifth lumbar (L5) and 1stsacral (S1) spinal level in a group of amateur cricket pace bowlers and a healthy non-cricketing group of males, and to determine if there were significant differences between groups in lumbar multifidus asymmetry at rest, on contraction, or during activation. Design: A prospective single blinded cross-sectional study. Methods: Forty healthy participants were recruited to two groups: an amateur cricket pace bowling group (n=20) and a non-cricketing group (n=20). Bilateral real-time ultrasound imaging of ...


Effects Of Very Short-Term Dynamic Constant External Resistance Exercise On Strength And Barbell Velocity In Untrained Individuals, M. Travis Byrd, Haley C. Bergstrom 2018 University of Kentucky

Effects Of Very Short-Term Dynamic Constant External Resistance Exercise On Strength And Barbell Velocity In Untrained Individuals, M. Travis Byrd, Haley C. Bergstrom

International Journal of Exercise Science

International Journal of Exercise Science 11(1): 867-874, 2018.This study examined the effect of an upper body dynamic constant external resistance (DCER) exercise (barbell bench press [BP]), using the very short-term training (VST) model on strength and barbell velocity. Ten (5 females, 5 males) subjects (mean ± SD age: 21.4 ± 2.8 yrs; height: 1.75 ± 0.12 m; body mass: 83 ± 8.8 kg) completed two pre-test visits (pre-test 1 and pre-test 2) to serve as the within subjects control, three training visits, and one post-test visit. The subject’s 1 repetition maximum (1RM) for the BP as ...


Pacing Of An Untrained 17-Year-Old Teenager In A Marathon Attempt, Beat Knechtle, Celina Knechtle, Thomas Rosemann, Pantelis Nikolaidis 2018 Institute of Primary Care, University of Zurich, Switzerland

Pacing Of An Untrained 17-Year-Old Teenager In A Marathon Attempt, Beat Knechtle, Celina Knechtle, Thomas Rosemann, Pantelis Nikolaidis

International Journal of Exercise Science

International Journal of Exercise Science 11(6): 856-866, 2018. Although there has been increased scientific interest for physiological responses to endurance running and pacing, limited information exists for adolescents participating in endurance events. We are reporting the case of an untrained 17-year-old female teenager (body mass 50.6 kg, height 167 cm and body mass index 18.1 kg/m2) who intended to run a marathon within 6 hours without preparation. The young woman missed her goal by just 2 km. When the average running speed per hour was analysed, there was a major effect of race hour on ...


Effects Of Prior Fasting On Fat Oxidation During Resistance Exercise, Kendall Frawley, Gabrielle Greenwald, Rebecca R. Rogers, John K. Petrella, Mallory R. Marshall 2018 Samford University

Effects Of Prior Fasting On Fat Oxidation During Resistance Exercise, Kendall Frawley, Gabrielle Greenwald, Rebecca R. Rogers, John K. Petrella, Mallory R. Marshall

International Journal of Exercise Science

International Journal of Exercise Science 11(2): 827-833, 2018. Prior research has demonstrated that the percentage of fuel utilization contributed by CHO compared to fat rises with an increase in exercise intensity. The role of food intake prior to exercise has been well studied and fasting prior to exercise generally increases reliance on fat as fuel. However, data on the role of fasting prior to resistance exercise is limited. Therefore, the purpose of this study was to assess the effects of one bout of resistance training in a fasted state compared to ingestion of standardized meal on fat and carbohydrate ...


Behavior Of Heart Rate Variability After 10 Repetitions Maximum Load Test For Lower Limbs, Estêvão R. Monteiro, Jefferson S. Novaes, Aline G. Fiuza, Eduardo Portugal, Felipe S. Triani, Leonardo Bigio, Rudson Santos, Alexandre Palma, Victor G. Corrêa Neto 2018 Federal University of Rio de Janeiro

Behavior Of Heart Rate Variability After 10 Repetitions Maximum Load Test For Lower Limbs, Estêvão R. Monteiro, Jefferson S. Novaes, Aline G. Fiuza, Eduardo Portugal, Felipe S. Triani, Leonardo Bigio, Rudson Santos, Alexandre Palma, Victor G. Corrêa Neto

International Journal of Exercise Science

International Journal of Exercise Science 11(6): 834-843, 2018. The purpose of this study was to analyze the acute heart rate variability behavior after 10 repetitions maximum load test for back squat, leg press, leg extension, and leg flexion in normotensive subjects. Eight recreationally trained women (age: 21.8 ± 2.2 yrs; height: 167.6 ± 6.3 cm; weight: 61.6 ± 10.1 kg) performed two 10 repetitions maximum testing days with 48-hours rest between each one. Heart rate variability was measured in baseline and postexercise (15-, 30-, 45-, and 60-minutes) for time and frequency domain. A significant difference was ...


Relative Handgrip Strength As A Simple Tool To Evaluate Impaired Heart Rate Recovery And A Low Chronotropic Index In Obese Older Women, Cristiane Rocha da Silva, Dahan da Cunha Nascimento, Ivo Sousa Neto, Ramires Tibana, Samuel Oliveira, Renato Valduga, Nayara Santos, Bruno Saraiva, Jonato Prestes, Jeffrey Willardson, Guilherme Borges Pereira 2018 Programa de Pós-Graduação em Educação Física, Universidade Católica de Brasília, Brasília, Distrito Federal, Brasil.

Relative Handgrip Strength As A Simple Tool To Evaluate Impaired Heart Rate Recovery And A Low Chronotropic Index In Obese Older Women, Cristiane Rocha Da Silva, Dahan Da Cunha Nascimento, Ivo Sousa Neto, Ramires Tibana, Samuel Oliveira, Renato Valduga, Nayara Santos, Bruno Saraiva, Jonato Prestes, Jeffrey Willardson, Guilherme Borges Pereira

International Journal of Exercise Science

International Journal of Exercise Science 11(2): 844-855, 2018. The aim of the present study was to compare differences in heart rate response following a treadmill exercise test in elderly obese women categorized into groups based on relative handgrip strength. Eighty-eight obese elderly women who were between the ages of 60 and 87 participated in the study and were categorized and enrolled to one of two groups based on lower (< 1.51 m²) or higher (≥ 1.51 m²) relative handgrip strength, respectively. The heart rate recovery in the first and second minutes following the treadmill exercise test and the chronotropic index were compared between groups. The higher relative handgrip strength group presented a significantly higher peak heart rate during exercise and a quicker heart rate recovery following exercise versus the lower relative handgrip strength group (pp=0.059) toward a significantly greater chronotropic index in the higher versus the lower relative handgrip strength group. In conclusion, elderly women with greater relative handgrip strength also ...


The Impact Of An External Load Of Football Equipment On Dynamic Balance As Assessed By The Modified Star Excursion Balance Test, Thomas J. Denehy, Timothy F. Marshall, Kim Spaccarotella, Walter Andzel 2018 Kean University

The Impact Of An External Load Of Football Equipment On Dynamic Balance As Assessed By The Modified Star Excursion Balance Test, Thomas J. Denehy, Timothy F. Marshall, Kim Spaccarotella, Walter Andzel

International Journal of Exercise Science

International Journal of Exercise Science 11(4): 797-805, 2018.Ankle sprains are common injuries, especially for football players, and may result in ankle instability, which can limit performance and increase injury risk. Ankle stability return to play criteria is often assessed under loaded conditions, even though previous research suggests loaded conditions affect dynamic balance. The purpose of this study was to evaluate dynamic balance under loaded conditions. A modified Star Excursion Balance Test (SEBT), incorporating anterior, posterior medial and posterior lateral reach directions under the loaded condition of NCAA Division III football equipment was evaluated. Thirty male collegiate football players ...


Reliability And Validation Of The Hexoskin Wearable Bio-Collection Device During Walking Conditions, Jeffrey Montes, John C. Young, Richard D. Tandy, James W. Navalta 2018 University of Nevada, LasVegas

Reliability And Validation Of The Hexoskin Wearable Bio-Collection Device During Walking Conditions, Jeffrey Montes, John C. Young, Richard D. Tandy, James W. Navalta

International Journal of Exercise Science

International Journal of Exercise Science 11(7): 806-816, 2018. To evaluate if the Hexoskin smart shirt (HxS) would produce valid and reliable measurements for heart rate (HR), respiratory rate (RR), minute ventilation (VE), step count (SC), and energy expenditure (EE) when compared to a Polar T-31 heart rate monitor, an Applied Electrochemistry Moxus Metabolic System, and a manual step count. A two-day walking treadmill protocol with participants walking for 3 minutes at 3 speeds (1.5mph, 2.5mph, 3.5mph, 0% grade) was performed. Forty-nine volunteers participated the first day, forty-six on the second, thirty-one were used for reliability ...


Strength And Stability Analysis Of Rehabilitated Anterior Cruciate Ligament Individuals, Jeffrey J. Cervenka, Meredith Decker, Mark D. Ricard, Joshua Beaty, Logan Ruhde 2018 University of Texas at Arlington

Strength And Stability Analysis Of Rehabilitated Anterior Cruciate Ligament Individuals, Jeffrey J. Cervenka, Meredith Decker, Mark D. Ricard, Joshua Beaty, Logan Ruhde

International Journal of Exercise Science

International Journal of Exercise Science 11(1): 817-826, 2018.The anterior cruciate ligament (ACL) serves as a vital stabilizer for the human knee, yet it is one of the most injured ligaments in the body. Function of the knee is restored through reconstruction and physical therapy, but long term functional deficits persist in some individuals. To better understand the influence of post rehabilitation outcomes on dynamic balance performance, this study evaluated bilateral differences in strength and stability in 11 participants who have rehabilitated from an ACL reconstruction or repair. The Y-Balance Test and an isokinetic strength assessment using the Biodex ...


The Effect Of Stance Width And Anthropometrics On Joint Range Of Motion In The Lower Extremities During A Back Squat, Eric Demers, Jonathan Pendenza, Valentin Radevich, Richard Preuss 2018 School of Physical and Occupational Therapy, McGill University

The Effect Of Stance Width And Anthropometrics On Joint Range Of Motion In The Lower Extremities During A Back Squat, Eric Demers, Jonathan Pendenza, Valentin Radevich, Richard Preuss

International Journal of Exercise Science

International Journal of Exercise Science 11(1): 764-775, 2018. The purpose of this study was to assess whether changing the stance width has an effect on the range of motion of hip flexion, knee flexion, and ankle dorsiflexion during an unloaded back squat, and whether these joint movements are affected by anthropometric differences. Thirty-two healthy, young adults performed unloaded back squats at three different stance widths, normalized to pelvic width. Joint angles were assessed using electromagnetic motion capture sensors on the sacrum, and thigh, shank and foot of the dominant leg. ANOVA comparison of joint angles for the three stance ...


Peak Power Output In Loaded Jump Squat Exercise Is Affected By Set Structure, Nikolaj Koefoed, Mads Lerche, Bjørn K. Jensen, Pia Kjær, Sebastian Dam, Rasmus Horslev, Ernst A. Hansen 2018 Aalborg University

Peak Power Output In Loaded Jump Squat Exercise Is Affected By Set Structure, Nikolaj Koefoed, Mads Lerche, Bjørn K. Jensen, Pia Kjær, Sebastian Dam, Rasmus Horslev, Ernst A. Hansen

International Journal of Exercise Science

International Journal of Exercise Science 11(1): 776-784, 2018. A priority in strength and power exercise might be to train with as high quality as possible for the shortest possible duration. In this context, peak power output could reflect quality. Designing an exercise session as a cluster set structure, as compared to a traditional set structure, may be a way to obtain higher peak power output in the session. But it is unknown whether that is obtainable for non-elite individuals performing loaded jump squat exercise. The aim of the present study was therefore to test the hypothesis that peak power ...


Selecting The Best Of The Best: Associations Between Anthropometric And Fitness Assessment Results And Success In Police Specialist Selection, Robin (Rob) Marc Orr, Erin Caust, Benjamin Hinton, Rodney Pope 2018 Tactical Research Unit, Bond University

Selecting The Best Of The Best: Associations Between Anthropometric And Fitness Assessment Results And Success In Police Specialist Selection, Robin (Rob) Marc Orr, Erin Caust, Benjamin Hinton, Rodney Pope

International Journal of Exercise Science

International Journal of Exercise Science 11(4): 785-796, 2018. To successfully complete specialist police selection, officers must be physically fit. The aim of this study was to investigate the relationship between performance on selected anthropometric and fitness tests and successful selection into a specialist police unit. Thirty-two male police officers (mean age = 29.48±4.99 years) participated in a Barrier Fitness Assessment (BFA), followed by a Specialist Selection Course (SSC). The BFA spanned two consecutive days of testing (pull-ups, push-ups, seven-stage sit-ups, a timed loaded pack march, a Multi-Stage Fitness Test, an agility run, a lift and carry task ...


Thermoregulatory Adaptations Following Sprint Interval Training, Jonathan E. Wingo, Charlie P. Katica, Svetlana Nepocatych, Andrew T. Del Pozzi, Greg A. Ryan 2018 University of Alabama

Thermoregulatory Adaptations Following Sprint Interval Training, Jonathan E. Wingo, Charlie P. Katica, Svetlana Nepocatych, Andrew T. Del Pozzi, Greg A. Ryan

Journal of Human Performance in Extreme Environments

Traditional endurance training typically involves weeks of long-duration (60–90 min) exercise performed at a moderate to vigorous intensity. An alternative paradigm, sprint interval training, is characterized by multiple bouts of short-duration, high-intensity exercise. Similar fitness benefits from the two paradigms have been demonstrated, but whether sprint interval training—like traditional endurance training—induces heat acclimation remains unclear.

Purpose

To test the hypothesis that sprint interval training performed over six sessions results in measureable thermoregulatory and cardiovascular adaptations consistent with heat acclimation.

Methods

Seven untrained men [mean ± SD, 13 ± 5% body fat, 22 ± 3 y, 3.1 ± 0.3 L ...


Carbohydrate Mouth Rinse Improves Relative Mean Power During Multiple Sprint Performance, Garet W. Simpson, Robert C. Pritchett, Eric O'Neal, Garrett Hoskins, Kelly Pritchett 2018 Central Washington University

Carbohydrate Mouth Rinse Improves Relative Mean Power During Multiple Sprint Performance, Garet W. Simpson, Robert C. Pritchett, Eric O'Neal, Garrett Hoskins, Kelly Pritchett

International Journal of Exercise Science

International Journal of Exercise Science 11(6): 754-763, 2018. Multiple investigations have confirmed carbohydrate mouth rinse (CMR) enhances high intensity endurance performance lasting under 1 hour, but the effects of CMR on high intensity intermittent exercise has received less attention. This study examined the effect of CMR on high intensity multiple sprint performances in a protocol designed to emulate a cyclocross or mountain biking event. Seven trained men (28.2 ± 6.8 years, 185 ± 9 cm, 85.3 ± 14.8 kg, VO2peak 51.4 ± 7.3 ml/kg*min-1) completed two, 48 min high intensity intermittent cycling protocols ...


Attitudes Towards Sports Concussion In Australian Exercise Science Students. Does The Type And Level Of Participation In Sport Matter?, Billymo Rist, Janet A. Young, Alan J. Pearce 2018 La Trobe University

Attitudes Towards Sports Concussion In Australian Exercise Science Students. Does The Type And Level Of Participation In Sport Matter?, Billymo Rist, Janet A. Young, Alan J. Pearce

International Journal of Exercise Science

International Journal of Exercise Science 11(5): 739-753, 2018. Concussion in sport is a growing public health issue. However, research suggests that under-reporting of concussion by student-athlete cohorts reflects conflicting attitudes compared to the wider community. Interestingly, previous studies have focused on the attitudes and beliefs irrespective of the type or level of sport played at. This study explored concussion beliefs and attitudes in a cohort of Australian exercise science students, analyzing responses based upon the type and the level of sport participated. Two-hundred and ninety-four students (m = 208; f = 86; age 22 ± 5.2 years) responded to a series ...


A Preliminary Analysis Of The Relationship Between The Multistage Fitness Test And 300-M Run In Law Enforcement Officers: Implications For Fitness Assessment, Matthew R. Moreno, Robert G. Lockie, Charles L. Kornhauser, Ryan J. Holmes, J. Jay Dawes 2018 California State University, Fullerton

A Preliminary Analysis Of The Relationship Between The Multistage Fitness Test And 300-M Run In Law Enforcement Officers: Implications For Fitness Assessment, Matthew R. Moreno, Robert G. Lockie, Charles L. Kornhauser, Ryan J. Holmes, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 11(4): 730-738, 2018. Law enforcement agencies (LEAs) often use fitness tests to assess recruits and incumbents. One fitness test that is gaining popularity is the 20-meter multistage fitness test (20m-MSFT). However, the potential length of this assessment, in addition to the repeated direction changes, means this test may not be appropriate for all officers (e.g. older officers, or those with physical impairments). The 300-m run is shorter, features no direction changes, and could provide an indication of fitness. The study purpose was to investigate the relationship between the 20m-MSFT and 300–m run ...


Lower Extremity Joint Kinematics Of Shod, Barefoot And Simulated Barefoot Treadmill Running, Michele LeBlanc, Heidi E. Ferkranus 2018 California Lutheran University

Lower Extremity Joint Kinematics Of Shod, Barefoot And Simulated Barefoot Treadmill Running, Michele Leblanc, Heidi E. Ferkranus

International Journal of Exercise Science

International Journal of Exercise Science 11(1): 717-729, 2018. Barefoot running is considered to decrease injury risk, but is not always practical, particularly while running on a fitness center treadmill. The purpose of this study was to compare the kinematics of shod, barefoot, and simulated barefoot running. Twelve subjects (age = 21.1 ± 1.2 years) who regularly run on a treadmill for fitness participated in the study. After a warm up, each runner ran on a Biodex RTM 400 treadmill set at 7.4 mph (approximately 3.3 m/s) in their own shoes, barefoot, and while running “like they ...


Stability Of Resistance Training Implement Alters Emg Activity During The Overhead Press, Jeremy R. Dicus, Michael E. Holmstrup, Kyle Shuler, Tyler Rice, Shawn Raybuck, Chelsea Siddons 2018 Slippery Rock University of Pennsylvania

Stability Of Resistance Training Implement Alters Emg Activity During The Overhead Press, Jeremy R. Dicus, Michael E. Holmstrup, Kyle Shuler, Tyler Rice, Shawn Raybuck, Chelsea Siddons

International Journal of Exercise Science

International Journal of Exercise Science 11(1): 708-716, 2018. Kettlebells often replace dumbbells during common resistance training exercises such as the overhead press. When performing an overhead press, the center of mass of a dumbbell is in line with the glenohumeral joint. In comparison, the center of mass of the kettlebell is posterior to the glenohumeral joint. Posterior displacement of the kettlebell center of mass may result in less stability during the pressing motion. The purpose of this study was to examine muscle activity during an overhead press with resistance training implements of differing stability. Surface electromyography (EMG) for the ...


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