Weekly Salivary Biomarkers Across A Season For Elite Men Collegiate Basketball Players,
2018
Department of Exercise and Sport Science, University of Wisconsin-La Cross
Weekly Salivary Biomarkers Across A Season For Elite Men Collegiate Basketball Players, Matthew J. Andre, Andrew C. Fry, Paul E. Luebbers, Andrea Hudy, Patricia R. Dietz, Glenn J. Cain
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 439-451, 2018. The purpose of this study was to monitor weekly the salivary free testosterone (FT), cortisol (C), and the FT/C ratio in elite men NCAA Division I basketball athletes across an entire season. Twelve athletes gave salivary samples for 30 consecutive weeks, beginning in the pre-season and ending one week after the end of post-season competition. Samples were assayed for FT and C. Additionally, a composite value (CBD) composed of Z-scores for weekly practice minutes, game minutes, resistance training repetitions, academic demands, and travel schedules was determined. One-way RM ANOVAs were used to …
Comparison Of Techniques For Tracking Body Composition Changes Across A Basketball Season,
2018
Truman State University
Comparison Of Techniques For Tracking Body Composition Changes Across A Basketball Season, Ashley Ploudre, Jerry Mayhew
International Journal of Exercise Science
International Journal of Exercise Science 11(4): 425-438, 2018. Body composition assessment has become an integral part of athletes’ training schedules. Questions remain concerning the accuracy of various methods to track body composition changes over a competitive year cycle. The purpose of this study was to compare various methods of tracking body composition across a college women’s basketball season. Fourteen Division II women (age = 20.1 ± 1.2 y) were measured prior to the season (T1), after pre-season conditioning (T2), at mid-season (T3), and at the end of the season (T4) using skinfolds (SKF), two bioelectric impedance analysis (BIA) devices, and …
External Feedback Does Not Affect Running Pace In Recreational Runners,
2018
Transylvania University
External Feedback Does Not Affect Running Pace In Recreational Runners, Nicholas A. Puleo, Kirk A. Abraham
International Journal of Exercise Science
International Journal of Exercise Science 11(5): 384-390, 2018. Many runners receive external feedback, such as running pace, during training; however, it is unknown if this feedback increases the intensity of a given exercise session. Therefore, the purpose of this study was to examine the effect of the provision of pace feedback on self-selected submaximal running pace, heart rate, and perceived exertion in recreational runners. Ten runners (6 female, 4 male) completed four 30-min treadmill running bouts in random order, each on a separate day. In each session, participants adjusted their pace as desired; however, all treadmill display information was concealed …
Comparison Of Body Composition Measurements In Lean Female Athletes,
2018
Bowling Green State University - Main Campus
Comparison Of Body Composition Measurements In Lean Female Athletes, Carly L. Houska, Jessica D. Kemp, Jamal S. Niles, Amy Morgan, Robin M. Tucker, Mary-Jon Ludy
International Journal of Exercise Science
International Journal of Exercise Science 11(4): 417-424, 2018. This study compared body composition measurements in lean female athletes. The primary objective was to compare the accuracy of percent body fat (%BF) determined by bioelectrical impedance analysis (BIA), air-displacement plethysmography (ADP), and underwater weighing (UWW) in female Division I cheerleaders (n = 10 bases, 6 back-spots, and 12 flyers) from two universities. The secondary objective was to compare health risk predicted by %BF to body mass index (BMI) categorizations. UWW was considered the gold standard for assessing %BF. Pearson correlation coefficients were used to determine associations between methods. Repeated measures …
Association Between Different Non-Invasively Derived Thresholds With Lactate Threshold During Graded Incremental Exercise.,
2018
Trinity College Dublin, Ireland
Association Between Different Non-Invasively Derived Thresholds With Lactate Threshold During Graded Incremental Exercise., Conor J. Raleigh, Bernard Donne, Neil Fleming
International Journal of Exercise Science
International Journal of Exercise Science 11(4): 391-403, 2018. We compared lactate threshold (TLac)with non-invasive markers of an aerobic-anaerobic transition; namely, ventilatory (VT) and tissue saturation index (TSIT) thresholds. While identification of a breakpoint in blood lactate concentration ([BLa]) is common for determination of an aerobic-anaerobic transition, non-invasive measures, VT and NIRS, have also received attention as a means of determining this critical exercise intensity. We hypothesised that one or other of these non-invasive measures would have a strong association with TLac. Thirty-one (n=31) competitive male athletes (mean ± SD, age 29±9 yr, height 1.81±0.1 …
Comparison Of A Pneumatic Compression Device To A Compression Garment During Recovery From Doms,
2018
Hanover College
Comparison Of A Pneumatic Compression Device To A Compression Garment During Recovery From Doms, Molly Winke, Shelby Williamson
International Journal of Exercise Science
International Journal of Exercise Science 11(3): 375-383, 2018. The purpose of this study was to determine the effects of a pneumatic compression device (PCD) compared to a continuously-worn compression sleeve (CS) during a five-day recovery period from delayed-onset muscle soreness (DOMS) of the elbow flexors. Eight college-aged students participated in this crossover design study. The muscle-damage protocol consisted of four sets of 25 repetitions of isokinetic concentric elbow flexion followed by eccentric elbow extension at 60 o/second. Immediately following the muscle-damage protocol, subjects either wore a CS continually for five days or completed daily, 20-minute PCD treatments for five …
The Effect Of Acute L-Carnitine And Carbohydrate Intake On Cycling Performance,
2018
Humboldt State University
The Effect Of Acute L-Carnitine And Carbohydrate Intake On Cycling Performance, Boe M. Burrus, Brian M. Moscicki, Tracey D. Matthews, Vincent J. Paolone
International Journal of Exercise Science
International Journal of Exercise Science 11(2): 404-416, 2018. Chronic supplementation of L-carnitine and carbohydrate has been reported to increase L-carnitine content in skeletal muscle and have positive influences on exercise variables and performance. This study investigated the acute intake of L-carnitine and carbohydrate on the exercise parameters of cycling. A total of 10 males (27.0 ± 4 years) completed two exercise sessions consisting of 40 min of cycling at 65% of VO2peak, followed by cycling to exhaustion at 85% of VO2peak. L-carnitine or a placebo was consumed 3 hours prior to exercise, and beverages consisting of …
Global Active Stretching (Sga®) Practice For Judo Practitioners’ Strength Enhancement,
2018
Federal University of Sergipe – UFS, São Cristovão, Sergipe, Brazil.
Global Active Stretching (Sga®) Practice For Judo Practitioners’ Strength Enhancement, Heleno Almeida Jr., Raphael F. De Souza, Felipe J. Aidar, Alisson G. Da Silva, Ricardo P. Regi, Afranio A. Bastos
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 364-374, 2018. In order to analyze the Global Active Stretching (SGA®) practice on the physical performance enhancement in judo-practitioner competitors, 12 male athletes from Judo Federation of Sergipe (Federação Sergipana de Judô), were divided into two groups: Experimental Group (EG) and Control Group (CG). For 10 weeks, the EG practiced SGA® self-postures and the CG practiced assorted calisthenic exercises. All of them were submitted to a variety of tests (before and after): handgrip strength, flexibility, upper limbs’ muscle power, isometric pull-up force, lower limbs’ muscle power (squat-jump – SJ and countermovement jump – CMJ) …
Reliability Of Pulse Waveform Separation Analysis Responses To An Orthostatic Challenge,
2018
University of North Carolina at Chapel Hill
Reliability Of Pulse Waveform Separation Analysis Responses To An Orthostatic Challenge, Lee Stoner, Keeron Stone, Erik D. Hanson, James Faulkner, Simon Fryer, Daniel Credeur
Faculty Publications
Cardiovascular autonomic nervous system function can be assessed using an orthostatic challenge to induce arterial wave reflection. While arterial reflection is typically estimated using a central augmentation index, a superior estimation can be obtained using pulse wave separation analysis to estimate the aortic backward pressure wave (Pb). However, to be of value in a clinical or research setting, an assessment tool must be precise (reliable). Therefore, this study sought to determine the measurement precision of Pb responses to a modified tilt-table test. Twenty healthy adults (26.4 year (SD 5.2), 24.7kg/m2 (SD 3.8), 55% female) were tested in a fasted …
No Observable Relative Age Effects In Professional Surfers: A Constraints-Based Evaluation,
2018
University of Central Florida
No Observable Relative Age Effects In Professional Surfers: A Constraints-Based Evaluation, Michael Redd, David Fukuda, Kyle Beyer, Leonardo Oliveira
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 355-363, 2018. With the recent inclusion of surfing in the 2020 Olympic Games in Japan, there will be a number of surfing athletes vying for one of the twenty total available spots for their respective gender. The purpose was to evaluate relative age effects (RAEs) in surfing with consideration for specific developmental constraints. Elite competitive male surfers (n = 1590) were examined by birth month and subcategorized by competitive level, age groups, and geographical regions. The observed quarterly distribution was not significantly different (using c2; p>0.05) from expected for the overall …
Central Hemodynamics Measured During 5 Repetition Maximum Free Weight Resistance Exercise,
2018
Georgia Highlands College
Central Hemodynamics Measured During 5 Repetition Maximum Free Weight Resistance Exercise, Jonathan S. Howard, Cherilyn N. Mclester, Thomas W. Evans, John R. Mclester, Jimmy P. Calloway
International Journal of Exercise Science
International Journal of Exercise Science 11(2): 342-354, 2018. The PhysioFlow™ is a piece of equipment that uses bioimpedance cardiography to measure central hemodynamics. The purpose of this research was to explore the novel approach of monitoring central hemodynamics during free weight resistance exercise using bioimpedance cardiography throughout a 5 repetition maximum (5RM). Thirty participants ranging from beginner to advanced lifters (16 males and 14 females) completed a 5RM for back squat, seated push press, and bicep curl while connected to the PhysioFlow™ to assess the response of heart rate (HR), stroke volume (SV), cardiac output (Q), and ejection fraction (EF). …
Impact Of Occupational Footwear And Workload On Lower Extremity Muscular Exertion,
2018
Mississippi State University
Impact Of Occupational Footwear And Workload On Lower Extremity Muscular Exertion, Alana J. Turner, Jonathan C. Swain, Katherine L. Mcwhirter, Adam C. Knight, Daniel W. Carruth, Harish Chander
International Journal of Exercise Science
International Journal of Exercise Science 11(1): 331-341, 2018. Footwear worn and workload performed can influence muscular exertion, which is critical in occupational environments. The purpose of the study was to assess the impact of two occupational footwear, steel-toed (SWB) and tactical (TWB) work boots, on muscular exertion when exposed to a physical workload. Eighteen healthy male participants (age: 21.27 ± 1.7 years; height: 177.67 ± 6.0 cm; mass: 87.95 ± 13.8 kg) were tested for maximal voluntary isometric contraction (MVIC) using electromyography (EMG) and pressure pain threshold (PPT) using an algometer for four lower extremity muscles prior to (pre-test) and …
Does Body Mass Index Influence The Physiological And Perceptual Demands Associated With Defensive Tactics Training In State Patrol Officers?,
2018
University of Colorado at Colorado Springs
Does Body Mass Index Influence The Physiological And Perceptual Demands Associated With Defensive Tactics Training In State Patrol Officers?, J. Jay Dawes, Charles Kornhauser, Diana Crespo, Craig L. Elder, Keston Lindsay, Ryan J. Holmes
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 319-330, 2018. The purpose of this investigation was to determine the physiological and perceptual demands associated with defensive tactics (DEFTAC) training among state patrol officers of different BMI (body mass index) categories. Twenty-four male state patrol officers (n = 24, age 36.00 + 7.86 yrs) voluntarily agreed to participate in data collection during a DEFTAC gauntlet. Anthropometric information (height (HT) 182.19 + 7.43 cm and weight (WT) 96.31 + 17.45 kg), body mass index (BMI), peak and average heart rates, duty weight, BLa, and RPE, were recorded. Officers were then divided into two-groups (Healthy …
Rate Of Performance Change In American Female Weightlifters Over Ten Years Of Competition,
2018
Oklahoma City University
Rate Of Performance Change In American Female Weightlifters Over Ten Years Of Competition, Jason Miller, Heidi Ventresca, Lindsay Bracken
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 290-307, 2018. The purpose of this study was to evaluate the rates of performance change for American female weightlifters over 10 years of competition. Athlete performance results were gathered from the United States Weightlifting open access, results archive, database. Data was delimited to athletes (N ≥ 750) that competed in Youth or Junior Nationals to ensure athletes were <21yrs old at the first recorded competition. Competition results were converted to strength to mass (SM) ratios to control for the effect of bodyweight on performance. Starting with the first competition date, the highest SM for the snatch (SNT), clean and jerk (CJ) and combined total (T), in three month segments for three years, and six month segments over 10 years, were recorded. Observed percentage change in SM and Cohen’s d effect size (ES) between each 3- and 6-month segment and the first competition (baseline), for the SNT, CJ and T, was determined. Positive change in rate of …
Sex And Age Differences In Trail Half Marathon Running,
2018
University of Nevada, Las Vegas
Sex And Age Differences In Trail Half Marathon Running, James W. Navalta, Jeffrey Montes, Elizabeth A. Tanner, Nathaniel Bodell, John C. Young
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 281-289, 2018. Female participation is growing in trail running races. The purpose was to evaluate sex and age differences in top finishers of a trail running half marathon. Velocity differences between males (M) and females (F) were determined for the top 10 finishers of the Moab Trail Half Marathon from 2012 - 2015 across age, and by finishing place. Differences between age category and between sexes were determined through ANOVA with significance accepted at P < 0.05. A significant difference for running velocity was present between sexes at each age category (20-29 yr F = 2.9±0.3, M = 3.4±0.4 m·sec-1; 30-39 yr F = 2.8±0.3, M = 3.3±0.3; 40-49 yr F = 2.7±0.3, M = 3.0±0.5; 50-59 …
Simulated Altitude Via Re-Breathing Creates Arterial Hypoxemia But Fails To Improve Elements Of Running Performance,
2018
University of Central Missouri
Simulated Altitude Via Re-Breathing Creates Arterial Hypoxemia But Fails To Improve Elements Of Running Performance, Matthew J. Garver, Cory M. Scheadler, Logan M. Smith, Sarah J. Taylor, Chase M. Harbach
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 187-197, 2018. Acclimatization to altitude has been shown to improve elements of performance. Use of simulated altitude is popular among athletes across the sports spectrum. This work was on a handheld, re-breathing device touted to enhance performance. Seven recreationally-trained athletes used the device for 18 hours over the course of the 37-day intervention trial. The elevations simulated were progressively increased from 1,524m to 6,096m. To ascertain potential efficacy, four performance trials were included (familiarization, baseline, and 2 follow-ups). Hematological (hematocrit, hemoglobin, and lactate), physiological (respiratory exchange ratio, heart rate, and oxygen consumption), and perceptual …
Effects Of Starting Stance On Base Running Sprint Speed In Softball Players,
2018
California State University, Fullerton
Effects Of Starting Stance On Base Running Sprint Speed In Softball Players, Amy Marquardt, Megan A. Wong, Casey M. Watkins, Saldiam R. Barillas, Andrew J. Galpin, Jared W. Coburn, Lee E. Brown
International Journal of Exercise Science
International Journal of Exercise Science 11(6): 179-186, 2018. Speed is a crucial aspect in softball, and can be the difference between winning and losing. Base stealing is a method used to produce runs. There has been debate over which starting position is the most advantageous to maximize acceleration and speed to reach the next base the fastest. The purpose of this study was to examine the effect of different starting stances on acceleration and speed phases in collegiate softball players. Seventeen healthy NCAA Division I women’s softball players (age = 19.9 ± 1.3yrs, height = 167.0 ± 5.4cm, mass = …
A Cross-Training Program Does Not Alter Self-Reported Physical Activity Levels In Elementary School Children,
2018
Taylor University-Upland
A Cross-Training Program Does Not Alter Self-Reported Physical Activity Levels In Elementary School Children, Melody L. White, Matthew S. Renfrow, Richard S. Farley, Dana K. Fuller, Brandi M. Eveland-Sayers, Jennifer L. Caputo
International Journal of Exercise Science
International Journal of Exercise Science 11(5): 308-318, 2018. The purpose of the study was to examine the effects of a school-based cross-training program on body mass index (BMI), attitudes toward physical activity (ATPA), and physical activity (PA) levels of children in the 4th and 5th grades. Children (N = 118) were divided into control (n = 60) and experimental (n = 58) groups based on class availability. While the control group continued academic classes as usual, the experimental group participated in cross-training involving resistance training (RT), calisthenics, and stretching twice a week for 10 weeks. …
An Analysis Of Collegiate Club-Sport Female Lacrosse Players: Sport-Specific Field Test Performance And The Influence Of Lacrosse Stick Carrying,
2018
California State University, Fullerton
An Analysis Of Collegiate Club-Sport Female Lacrosse Players: Sport-Specific Field Test Performance And The Influence Of Lacrosse Stick Carrying, Robert G. Lockie, Samantha A. Birmingham-Babauta, John J. Stokes, Tricia M. Liu, Fabrice G. Risso, Adrina Lazar, Dominic V. Giuliano, Ashley J. Orjalo, Matthew R. Moreno, Alyssa A. Stage, Deshaun L. Davis
International Journal of Exercise Science
International Journal of Exercise Science 11(4): 269-280, 2018. Lacrosse is a field-based, intermittent sport that requires players to use a stick with a shaft and mesh pocket to manipulate the ball. However, there has been limited analysis of the characteristics of collegiate club-sport players, and whether stick carry influences the sprinting speed of lacrosse players. As a result, this study investigated the field test characteristics of collegiate club-sport female lacrosse players, and the effects of stick carry on linear and change-of-direction speed. Nine players (seven field players, two goalkeepers) volunteered for this study and completed: vertical jump and standing broad …
Acute Specific Effects Of Caffeine-Containing Energy Drink On Different Physical Performances In Resistance-Trained Men,
2018
Londrina State University
Acute Specific Effects Of Caffeine-Containing Energy Drink On Different Physical Performances In Resistance-Trained Men, Camilla Astley, Diego Souza, Marcos Polito
International Journal of Exercise Science
International Journal of Exercise Science 11(4): 260-268, 2018. Caffeine containing energy drink (ED) is frequently used as ergogenic aid, but its effect on performance need more investigation. Thus, the aim of this study was to analyze the effects of acute ingestion of an ED on the physical performance of resistance-trained men subjected to successive tests in the same experimental protocol. Fifteen resistance-trained males (21.0 ± 0.3 yrs; 177.4 ± 1.8 cm; 79.6 ± 1.8 kg) ingested 2.5 mg caffeine per kg of body weight (619.5 ± 14.6 mL of ED) or a placebo in a double-blind randomized cross-over design. Physical …
