Body Composition And Perceived Stress Through A Calendar Year In Ncaa I Female Volleyball Players,
2019
Auburn University
Body Composition And Perceived Stress Through A Calendar Year In Ncaa I Female Volleyball Players, Hayden W. Hyatt, Andreas N. Kavazis
International Journal of Exercise Science
International Journal of Exercise Science 12(5): 433-443, 2019. The aim of the study was to track changes of perceived stress and body composition across an entire calendar year in National Collegiate Athletic Association (NCAA) division I female volleyball players. We hypothesized that perceived stress and body composition would vary between the competitive season and off-season, with the largest changes occurring during time points prior to the onset and after the end of the competitive season. Eight female volleyball players participated in a longitudinal study. Body mass, body mass index (BMI), percent body fat, fat mass, and fat free mass were …
Acute Effects Of L-Arginine Supplementation On Oxygen Consumption Kinetics And Muscle Oxyhemoglobin And Deoxyhemoglobin During Treadmill Running In Male Adults,
2019
School of Physical Education of Army
Acute Effects Of L-Arginine Supplementation On Oxygen Consumption Kinetics And Muscle Oxyhemoglobin And Deoxyhemoglobin During Treadmill Running In Male Adults, Claudia M. Meirelles, Cristiane Matsuura, Roberto Silva Jr., Felipe F. Guimaraes, Paulo Sergio C. Gomes
International Journal of Exercise Science
International Journal of Exercise Science 12(2): 444-455, 2019. L-arginine is used as a nitric oxide related supplement intended to improve sports performance, and to enhance muscular recovery during exercise. However, the literature is inconclusive. The aim of this study was to determine the effects of acute oral L-arginine supplementation on O2 consumption kinetics and local muscle blood volume and oxygenation during treadmill running at two different intensities. Using a double-blind, crossover and placebo-controlled design, 11 young healthy male adults were randomly assigned to 6 g of L-arginine (ARG) or placebo (PLA) supplementation that was ingested 60 min before the exercise …
A Comparison Of Blood Viscosity And Hematocrit Levels Between Yoga Practitioners And Sedentary Adults,
2019
Texas State University-San Marcos
A Comparison Of Blood Viscosity And Hematocrit Levels Between Yoga Practitioners And Sedentary Adults, James Shadiow, Takashi Tarumi, Mandeep Dhindsa, Stacy D. Hunter
International Journal of Exercise Science
International Journal of Exercise Science 12(2): 425-432, 2019. Elevations in whole blood viscosity (WBV) and hematocrit (Hct), have been linked with increased risk of cardiovascular disease (CVD). Endurance training has been demonstrated to lower WBV and Hct; however, evidence supporting the efficacy of yoga on these measures is sparse. A cross-sectional study was conducted examining WBV and Hct levels between yoga practitioners with a minimum of 3 years of consistent practice and sedentary, healthy adults. Blood samples were collected from a total of 42 participants: 23 sedentary adults and 19 regular yoga practitioners. Brachial arterial blood pressure (BP) was measured …
Caffeine Alters Rpe-Based Intensity Production,
2019
Middle Tennessee State University
Caffeine Alters Rpe-Based Intensity Production, Tyler Langford, Eric O'Neal, Eric M. Scudamore, Samantha Johnson, Caitlin Stevenson, Veronika Pribyslavska, Matt Green
International Journal of Exercise Science
International Journal of Exercise Science 12(6): 412-424, 2019. This study examined effects of caffeine (CAF) on power output (PO) selection and associated physiological responses during cycling at moderate and high intensities prescribed by RPE (0-10 scale). Participants (n = 9) (VO2peak: 55.4 ± 6.32 mL · kg-1 · min-1) cycled for 20 min at RPE4 and 20 min at RPE7 separated by 10 min recovery following caffeine (CAF) (6 mg · kg-1) and placebo (PLA) ingestion. PO, HR, serum lactate [La], VO2, VE, and RER were recorded every 5 min. Session RPE (S-RPE) was recorded following 10 min recovery. Repeated-measures …
Reductions In Kinematics From Brassieres With Varying Breast Support,
2019
Central Michigan University
Reductions In Kinematics From Brassieres With Varying Breast Support, Taylor M. Gibson, Nilanthy Balendra, Ksenia I. Ustinova, Joseph Langenderfer
International Journal of Exercise Science
International Journal of Exercise Science 12(1): 402-411, 2019. Given the abundance of brassieres, manufacturers, and investigations of bras, it remains unclear whether the continued development of bras will provide many additional improvements in support. This study measured performance of sport bras including 4 popular bras and a new style bra at reducing breast motion during five common exercises. Bras demonstrated varying effectiveness and consistency across exercises at reducing undesirable breast motion, (hereafter referred to as kinematics). The new style bra significantly reduced vertical breast displacement and acceleration more consistently than other bras. When significant differences between bras were detected, the …
Validity And Reliability Of The Polar A300'S Fitness Test Feature To Predict Vo2max,
2019
Montana State University Billings
Validity And Reliability Of The Polar A300'S Fitness Test Feature To Predict Vo2max, Kasie D. Cooper, Alex B. Shafer
International Journal of Exercise Science
International Journal of Exercise Science 12(4): 393-401, 2019. The Polar A300 fitness watch includes a feature termed the 5-minute fitness test. This feature claims to estimate maximal oxygen consumption (VO2max) in healthy adults. The purpose of this study was to assess the validity and reliability of the Polar A300 “Fitness Test” VO2max estimation feature. Nineteen recreationally active young adult males (n=9) and females (n=10) completed a Bruce protocol treadmill protocol to assess VO2max, followed by two separate 5-minute Polar Fitness Test (VO2max estimation) trials. A Pearson’s r test was used to determine the relationship between VO2max from the Bruce Test …
Evaluation Of Earbud And Wristwatch Heart Rate Monitors During Aerobic And Resistance Training,
2019
Campbell University
Evaluation Of Earbud And Wristwatch Heart Rate Monitors During Aerobic And Resistance Training, Jennifer A. Bunn, Elizabeth K. Wells, John P. Manor, Michael J. Webster
International Journal of Exercise Science
International Journal of Exercise Science 12(4): 374-384, 2019. Assessment of biometrics during exercise is evolving to create devices that are “all-inclusive", in an effort to decrease the number of devices required during exercise while providing comprehensive and accurate biometric measures. The purpose of this study was to determine the accuracy of two optical heart rate monitors, the Jabra earbud and the Mio Alpha wristwatch, during aerobic and anaerobic exercise. Twenty-two recreationally active participants (25.4 ± 6.9 years, 171 ± 11 cm, 73.9 ± 3.1 kg, and 25.2 ± 9.2% body fat) completed this study. Participants completed 30 minutes of treadmill …
Intermittent Pneumatic Compression Boot Use Elevates Blood Lactate During Subsequent Exercise,
2019
Sacred Heart University
Intermittent Pneumatic Compression Boot Use Elevates Blood Lactate During Subsequent Exercise, Richard T. Marcello, Lucas Fortini, Beau Kjerulf Greer
International Journal of Exercise Science
International Journal of Exercise Science 12(2): 385-392, 2019. The purpose of the present study was to investigate the influence of intermittent pneumatic compression (IPC) boot use between submaximal cycling trials on heart rate (HR) and blood lactate concentrations. Ten healthy participants (9M; 1F) performed two consecutive 60 minute rides at 60% of functional threshold power with a 30 minute rest between rides. The rest period was spent in a supine position using IPC boots (BOOT) or sitting in a similar position without boots (CON). HRs were collected every 15 minutes during cycling rides, and lactate was measured at the 30-minute …
Impact Of A Single Injury Prevention Instructional Session On The Incidence Of Injury Among U.S. Army Rotc Cadets,
2019
Illinois State University
Impact Of A Single Injury Prevention Instructional Session On The Incidence Of Injury Among U.S. Army Rotc Cadets, Joshua Wooldridge
Theses and Dissertations
Background: Musculoskeletal injuries are the leading health concern for the United States Army. These injuries are the third leading cause of hospitalizations for Army service members and the primary cause for the majority of service-connect disability discharges. Over 80% of musculoskeletal injuries are overuse injuries caused by physical training. The Joint Services Physical Training Injury Prevention Work Group considers education to be a mandatory component of all injury prevention efforts; however, little military research has investigated the impact of education as a primary intervention. Objective: To examine the effect of an injury prevention education class on the incidence of injuries …
Can You Float? Part 2 - Perceptions And Practice Of Lifejacket Use Among Young Adults,
2019
The University of Auckland
Can You Float? Part 2 - Perceptions And Practice Of Lifejacket Use Among Young Adults, Kevin Moran Ph.D.
International Journal of Aquatic Research and Education
Personal flotation devices (PFDs), commonly referred to as lifejackets, have been identified as an extremely effective form of drowning prevention and was identified as a critical distinct water competency by Stallman and colleagues (2017). In this second phase of the Can You Float? study, perceptions and practice of a range of lifejacket tasks among students (N = 40) with known water proficiency were examined. Participants estimated exertion levels before and after practical testing of six simulated survival tasks when wearing lifejackets. All participants completed a 25m sprint swim, 5-minute endurance swim, 5-minute float, and 25m partner assist but many …
An Investigation Of Youth Swimming Skills And Method Of Instruction,
2019
University of Memphis
An Investigation Of Youth Swimming Skills And Method Of Instruction, Carol C. Irwin, Jennifer R. Pharr, Todd E. Layne, Richard L. Irwin
International Journal of Aquatic Research and Education
Drowning is a leading cause of death for US children. Teaching youth to swim in a formal setting from certified instructors is a consistent drowning prevention recommendation. Purposes for this investigation was to examine type of swimming instruction and ability to swim and compare to attitudes toward swimming among US youth. Methods were similar to previous USA Swimming studies in 2008 and 2010. YMCA associations in five cities were used to recruit adolescent survey respondents (n=600) aged 12-18 years. Results showed African American youth had the lowest rate of formal swimming instruction (29%) compared to White (32%) and Hispanic (42%) …
An Exploration Of Infant And Toddler Unstructured Outdoor Play,
2019
University of Nebraska at Omaha
An Exploration Of Infant And Toddler Unstructured Outdoor Play, Danae Dinkel, Kailey Snyder, Tyler Patterson, Shane Warehime, Miriam E. Kuhn, Deborah Basler Wisneski
Health and Kinesiology Faculty Publications
Unstructured outdoor play is important for children's development. The present study examined infants’ and toddlers’ physical and social unstructured outdoor play behaviors within childcare centers. Children's outdoor play behaviors were video recorded at two centers (A&B) and assessed using a modified version of the Observational System for Recording Physical Activity in Children in Preschool (OSRAC-P). Children in this study primarily took part in active play (56.7%) and engaged in play without any type of prompting from a teacher (91.2%). There was a significant interaction between the effect of center and location on physically active play (p < 0.001). Children at Center B were most active in open play areas (77.6%), while children at Center A were most active in gross motor play areas (72.2%). In sum, the outdoor play environment influences infants’ and toddlers’ physical and social play behaviors; however, more research is needed to determine the optimal environment for development.
Interlimb Transfer And Generalisation Of Learning In The Context Of Persistent Failure To Accomplish A Visuomotor Task,
2019
Utah State University
Interlimb Transfer And Generalisation Of Learning In The Context Of Persistent Failure To Accomplish A Visuomotor Task, David A.E. Bolton, A. R. Buick, T. J. Carroll, R. G. Carson
Kinesiology and Health Science Faculty Publications
Transfer, in which capability acquired in one situation influences performance in another is considered, along with retention, as demonstrative of effectual learning. In this regard, interlimb transfer of functional capacity has commanded particular attention as a means of gauging the generalisation of acquired capability. Both theoretical treatments and prior empirical studies suggest that the successful accomplishment of a physical training regime is required to bring about generalised changes that extend to the untrained limb. In the present study, we pose the following question: Does interlimb transfer occur if and only if the training movements are executed? We report findings from …
Monitoring Training Load, Well-Being, Heart Rate Variability, And Competitive Performance Of A Functional-Fitness Female Athlete: A Case Study,
2019
Federal University of Mato Grosso
Monitoring Training Load, Well-Being, Heart Rate Variability, And Competitive Performance Of A Functional-Fitness Female Athlete: A Case Study, Ramires Alsamir Tibana, Nuno Manuel Frade De Sousa, Jonato Prestes, Yuri Feito
Faculty Articles
The aim of this case study was to quantify the magnitude of internal load, acute/chronic workload ratio (ACWR), well-being perception, and heart rate variability (HRV) following 38 weeks of functional-fitness training in a female elite athlete. The internal load was obtained with session rating perceived exertion (session-RPE) while the ACWR was calculated by dividing the acute workload by the chronic workload (four-week average). Furthermore, HRV measurements were analyzed via a commercially available smartphone (HRV4training) each morning upon waking whilst in a supine position. The magnitude of internal load was: the weekly mean total during the 38 weeks was 2092 ± …
Aerobic Fitness Markers Associated With Post-Paddling Breath Hold Capacity In Competitive Surfers,
2019
California Polytechnic State University
Aerobic Fitness Markers Associated With Post-Paddling Breath Hold Capacity In Competitive Surfers, Cory J. Greever, Kaden K.L. Groseclose, April L. Denny, Danielle C. Jones
International Journal of Exercise Science
International Journal of Exercise Science 12(6): 366-373, 2019. Competitive surfing is a growing sport with evolving performance and safety demands. One particular challenge surfers face is the need to endure long breath-holds following bouts of surf paddling. The purpose of this study was to examine the association between aerobic fitness markers, such as VO2peak and ventilatory thresholds, and post-paddling breath-hold capacity in competitive surfers. Eleven male collegiate level competitive surfers completed both a maximal graded exercise test and a simulated post-paddling breath-hold challenge on a modified paddling ergometer. Associations between markers of aerobic fitness and post-paddling breath-hold capacity were …
The Effects Of Pre-Workout Supplementation On Anaerobic Power And Maintenance Of Power In College Students,
2019
University of Kentucky
The Effects Of Pre-Workout Supplementation On Anaerobic Power And Maintenance Of Power In College Students, Christine T. Herbe, M. Travis Byrd, Taylor K. Dinyer, Brian J. Wallace, Haley C. Bergstrom
International Journal of Exercise Science
International Journal of Exercise Science 12(2): 355-365, 2019. This study examined the effects of Assault™ pre-workout supplementation on peak power output (PP), mean power output (MP), and percent decline in power output (% decline) during repeated, Wingate anaerobic tests. Thirteen healthy, physically active participants (7 male, 6 female) completed the randomized, double-blind, placebo-controlled crossover design with two conditions, supplement and placebo. The participants visited the laboratory for a total of three visits, 2-7 days apart. During visit 1, the participants completed a 4-minute familiarization warm-up on the Monark cycle ergometer and performed one baseline, 30-second Wingate cycle ergometry test. During …
Sex And Limb Impact Biomechanics Associated With Risk Of Injury During Drop Landing With Body Borne Load,
2019
Boise State University
Sex And Limb Impact Biomechanics Associated With Risk Of Injury During Drop Landing With Body Borne Load, Kayla D. Seymore, Auralea C. Fain, Nicholas J. Lobb, Tyler N. Brown
Kinesiology Faculty Publications and Presentations
Increasing lower limb flexion may reduce risk of musculoskeletal injury for military personnel during landing. This study compared lower limb biomechanics between sexes and limbs when using normal and greater lower limb flexion to land with body borne load. Thirty-three participants (21 male, 12 female, age: 21.6±2.5 years, height: 1.7±0.1 m, weight: 74.5±9.0 kg) performed normal and flexed lower limb landings with four body borne loads: 20, 25, 30 and 35 kg. Hip and knee biomechanics, peak vertical ground reaction force (GRF), and the magnitude and direction of the GRF vector in frontal plane were submitted to two separate repeated …
Citrus Aurantium And Caffeine Complex Versus Placebo On Biomarkers Of Metabolism: A Double Blind Crossover Design,
2019
Kennesaw State University
Citrus Aurantium And Caffeine Complex Versus Placebo On Biomarkers Of Metabolism: A Double Blind Crossover Design, Brian Kliszczewicz, Emily Bechke, Cassie Williamson, Zackery Green
Faculty Articles
BACKGROUOND: The purpose of this study was to examine resting the metabolic response to the ingestion of a complex containing Citrus Aurantium + Caffeine (CA + C) and if its consumption influences metabolic recovery following a high-intensity anaerobic exercise bout in habitual caffeine users. METHODS: Ten physically active males (25.1 ± 3.9 years; weight 78.71 ± 9.53 kg; height 177.2 ± 4.6 cm; body fat 15.5 ± 3.13%) participated in this study. This study was performed in a double-blind, randomized crossover fashion consisting of two exhaustive exercise protocols. On each visit the participants consumed either a CA + C (100 …
The Effect Of Foam Rolling Of The Hamstrings On Proprioception At The Knee And Hip Joints,
2019
Barry University
The Effect Of Foam Rolling Of The Hamstrings On Proprioception At The Knee And Hip Joints, Erin David, Tal Amasay, Kathryn Ludwig, Sue Shapiro
International Journal of Exercise Science
International Journal of Exercise Science 12(1): 343-354, 2019. The purpose of this study was to determine the acute effect of hamstring foam rolling on proprioception at the knee and hip joints. Twenty-five participants completed two proprioceptive tests on separate days, in a random order. The joint position matching test used no visual feedback. Participants were verbally guided to a target lunge position, which was maintained for six seconds while right hip and knee angles were recorded. After rest, participants reproduced this position without guidance for six seconds. Three trials were completed at baseline, and zero, 10, and 20 minutes post-intervention. …
An Examination Of The Severity Of Aquatic Incidents,
2019
Eastern Connecticut State University
An Examination Of The Severity Of Aquatic Incidents, Lyndsey K. Lanagan-Leitzel
International Journal of Aquatic Research and Education
Lanagan-Leitzel (2012) found that lifeguards do not consistently report incidents when free-viewing aquatic scenes and miss some incidents that should be considered critical. This could have been because they did not know what incidents were critical to monitor or because they were busy monitoring other incidents. In the current study, lifeguards and non-lifeguards were presented with video clips of isolated incidents and rated the severity of each on a scale of 0 – 7. The lifeguards reported greater mean and maximum incident severity than non-lifeguards. Further analyses of lifeguard responses revealed that severity ratings were only moderately correlated to the …
