Influence Of Hip Abductor Fatigue On Acl Loading During Single-Leg Landing,
2019
University of Nebraska at Omaha
Influence Of Hip Abductor Fatigue On Acl Loading During Single-Leg Landing, Namwoong Kim
UNO Student Research and Creative Activity Fair
A musculoskeletal simulation study is necessary to identify the cause-effect relationship between hip abductor weakness and ACL loading during athletic events such as landing and jumping. The purpose of this study was to identify the effect of weakness of hip abductors on lower extremity kinematics and ACL loading during single-leg landings. We hypothesized that hip abductor weakness would alter lower extremity joint kinematics. We also hypothesized that hip abductor weakness would increase ACL loading during single-leg landings. This study was a combination of a human experiment and a musculoskeletal modeling simulation. Ten healthy participants performed single-leg landing from a height …
Cardiorespiratory Responses To Shallow Water Exercise: A Sex Comparison,
2019
Central Washington University
Cardiorespiratory Responses To Shallow Water Exercise: A Sex Comparison, Mitchell Garant Fisher, Laura Jean Miller, Jerusalem Tesfaye, Karen Roemer, Debra Mary D'Acquisto, Leo Joseph D'Acquisto
International Journal of Aquatic Research and Education
This investigation examined physiological responses to shallow water exercise (SWE) and to a high-intensity interval SWE workout (HIISWE) in males (M, n=9) and females (F, n=9). Participants performed 5 X 5 min. SWE bouts (bts.) at ratings of perceived exertion (RPE) 9, 11, 13, 15 and 17 (Borg scale) and a maximal bout of SWE with metabolic, heart rate (HR), and blood lactate (BLa) responses monitored. The same measurements were performed during HIISWE (4 X 4-min bts., alternating 20-s “all-out” and 10-s rest). Peak oxygen uptake (V̇O2) and BLa were greater in M (3.6 ± 0.4 vs. 2.7 …
Factors Related To Average Concentric Velocity Of Four Barbell Exercises At Various Loads,
2019
Lindenwood University
Factors Related To Average Concentric Velocity Of Four Barbell Exercises At Various Loads, Christopher A. Fahs, Julia C. Blumkaitis, Lindy M. Rossow
Faculty Scholarship
The resistance exercise load is the primarily determinant of the average concentric velocity (ACV) during a repetition. It is unknown whether individual factors such as training experience or anthropometrics also influence the ACV. Previous research has shown the ACV during the 1 repetition maximum (1RM) varies between exercises, but it is not clear whether ACV is different between exercises at various percentages of the 1RM. This information could provide practical guidelines for trainees using ACV to select training loads. Therefore, the purpose of this study was to determine whether training age, current training frequency, limb length, height, and relative strength …
Heat Exposure And Hypohydration Exacerbate Physiological Strain During Load Carrying,
2019
University of Connecticut
Heat Exposure And Hypohydration Exacerbate Physiological Strain During Load Carrying, Elizabeth L. Adams, Douglas J. Casa, Robert A. Huggins, Julie K. Demartini, Rebecca L. Stearns, Rachel M. Kennedy, Lindsay J. Distefano, Lawrence E. Armstrong, Carl M. Maresh
All PTHMS Faculty Publications
Heat exposure and hypohydration induce physiological and psychological strain during exercise; however, it is unknown if the separate effects of heat exposure and hypohydration are synergistic when co-occurring during loaded exercise. This study compared separate and combined effects of heat exposure and hypohydration on physiological strain, mood state, and visual vigilance during loaded exercise. Twelve males (mean±SD; age, 20±2 years; body mass, 74.0±8.2 kg; maximal oxygen uptake, 57.0±6.0 mLkg-1min-1) completed 4 trials under the following conditions: euhydrated temperate (EUT), hypohydrated temperate (HYT), euhydrated hot (EUH), and hypohydrated hot (HYH). Exercise was 90 min of treadmill walking (∼50% VO2 max, 5% …
Validation Of A New Incremental Swim Test As A Tool For Maximum Oxygen Uptake Analysis In Lifeguards,
2019
University of A Coruña, A Coruña, Spain
Validation Of A New Incremental Swim Test As A Tool For Maximum Oxygen Uptake Analysis In Lifeguards, Brais Ruibal-Lista, José Palacios-Aguilar, José Antonio Prieto, Sergio López-García, José Antonio Cecchini-Estrada, Miguel Santiago-Alonso, Cristian Abelairas-Gómez
International Journal of Aquatic Research and Education
This study was designed to validate an incremental test predicting maximum oxygen uptake for lifeguards. A maximum incremental test was performed in the laboratory (i.e., treadmill run) and in the pool (i.e., swim) by 10 certified lifeguards. The values of maximum oxygen uptake (VO2Max), maximum heart rate (HRMax), and lactate (LaMax) achieved during both tests were analyzed. The VO2Max (0.87, p =.001), HRmax (0.85, p = .002) and LaMax (0.67, p
Unintentional Bathtub Drowning Deaths Among Those Aged 65 Years And Older In Australia,
2019
Royal Life Saving Society - Australia; James Cook University
Unintentional Bathtub Drowning Deaths Among Those Aged 65 Years And Older In Australia, Amy E. Peden, Richard C. Franklin, John H. Pearn M.D., Alison J. Mahony
International Journal of Aquatic Research and Education
When compared with other age groups, fatal drowning rates among seniors have stayed static. This study identifies causal factors in unintentional bathtub drowning deaths among people aged 65 years and over. This study is a 10-year (2003-2012) total population retrospective survey of all unintentional bathtub (baths, spa baths and showers) drowning deaths afflicting people aged 65 years and over. Data were sourced from the Australian National Coronial Information System. Risk factors and circumstantial variables were analysed including sex, age, activity prior to drowning, alcohol, drugs, pre-existing medical conditions, living circumstances, time until found, and performance of cardio-pulmonary resuscitation (CPR). There …
Self-Agency And Swimming: Letting Babies Be Your Teachers,
2019
Bowling Green State University - Emeritus Professor, Developmental Aquatic Kinesiology
Self-Agency And Swimming: Letting Babies Be Your Teachers, Stephen J. Langendorfer Ph.D.
International Journal of Aquatic Research and Education
Young children learning to swim should be afforded the freedom to choose for themselves whether they submerge, float, or have their arms and legs manipulated.
Effects Of Eight Weeks Of High Intensity Functional Training On Glucose Control And Body Composition Among Overweight And Obese Adults,
2019
Kennesaw State University
Effects Of Eight Weeks Of High Intensity Functional Training On Glucose Control And Body Composition Among Overweight And Obese Adults, Yuri Feito, Pratik Patel, Andrea Sal Redondo, Katie M. Heinrich
Faculty Articles
High-intensity exercise has been found to positively influence glucose control, however, the effects of high-intensity functional training (HIFT) for overweight and obese sedentary adults without diabetes is unknown. The purpose of this study was to examine changes in body composition and glucose control from eight weeks of aerobic and resistance training (A-RT) compared to HIFT. Session time spent doing daily workouts was recorded for each group. Baseline and posttest measures included height, weight, waist circumference, dual X-ray absorptiometry (body fat percentage, fat mass, lean mass), and fasting blood glucose. Participants completing the intervention (78%, n = 9 per group) were …
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%) …
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 ± …
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 …
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 …
Triennial Scientific Review: Assisting Drowning Victims: Effective Water Rescue Equipment For Lay-Responders,
2019
Rowan University
Triennial Scientific Review: Assisting Drowning Victims: Effective Water Rescue Equipment For Lay-Responders, Angela K. Beale-Tawfeeq
International Journal of Aquatic Research and Education
The original question addressed in the scientific review was What is the most effective piece of rescue equipment for a lay responder to throw to a person in trouble in water? and the modified question was rephrased as What are the most effective types of aquatic rescue equipment for a layperson/bystander to use to rescue a drowning person? To thoroughly analyze the main question, the following sub-questions were examined: What are the most accurate and buoyant types of devices? What specific equipment is best for quick rescues? What specific equipment can be grasped most easily by drowning victims? This …
Energy Status And Body Composition Across A Collegiate Women’S Lacrosse Season,
2019
Lindenwood University
Energy Status And Body Composition Across A Collegiate Women’S Lacrosse Season, Hannah A. Zabriskie, Bradley S. Currier, Patrick S. Harty, Richard A. Stecker, Andrew R. Jagim, Chad M. Kerksick
Faculty Scholarship
Little data is available regarding the energy and nutritional status of female collegiate team sport athletes. Twenty female NCAA Division II lacrosse athletes (mean ± SD: 20.4 ± 1.8 years; 68.8 ± 8.9 kg; 168.4 ± 6.6 cm; 27.9 ± 3% body fat) recorded dietary intake and wore a physical activity monitor over four consecutive days at five different time points (20 days total) during one academic year. Body composition, bone health, and resting metabolic rate were assessed in conjunction with wearing the monitor during off-season, pre-season, and season-play. Body fat percentage decreased slightly during the course of this study …
Revised Scientific Review: Minimum Age For Swim Lessons,
2019
Bowling Green State University - Emeritus Professor, Developmental Aquatic Kinesiology
Revised Scientific Review: Minimum Age For Swim Lessons, Stephen J. Langendorfer Ph.D.
International Journal of Aquatic Research and Education
The question addressed in the original scientific review (2009) was rephrased as Does sufficient scientific evidence exist to support setting a minimum age for swimming lessons? for this triennial review. Addressing the research question is significant because strong differences of opinion about the appropriate age(s) for initiating learn-to-swim lessons have existed among the pediatric medical profession, aquatic professionals and agencies, and proprietary programs and swim schools for over four decades. The question has implications for the appropriate purposes, pedagogies, and outcomes associated with swimming experiences for infants and young children that will be addressed in a subsequent review. The revised …
Risk Factors For Boating Incidents In Inuvik, Northwest Territories, Canada,
2019
University of Ottawa
Risk Factors For Boating Incidents In Inuvik, Northwest Territories, Canada, Catherine Tr Glass, Audrey R. Giles
International Journal of Aquatic Research and Education
Injury prevention programs that focus on boating and water safety in the Northwest Territories (NWT) have existed for decades; however, rates of boating incidents are much higher in the NWT than southern Canada. To better understand this health disparity, we engaged in community-based participatory research informed by postcolonial feminist theory to examine Aboriginal men’s understandings of the risk factors that contribute to boating incidents in Inuvik, NWT. Participants identified four main risk factors for boating incidents in Inuvik: 1) Gender, 2) age, 3) place, and 4) lack of boating safety education. As a result of these findings and the ways …
Examining The Perceived Impacts Of Recreational Swimming Lessons For Children With Autism Spectrum Disorder,
2019
University of Ottawa
Examining The Perceived Impacts Of Recreational Swimming Lessons For Children With Autism Spectrum Disorder, Erin Kraft M.A. Ed.
International Journal of Aquatic Research and Education
The purpose of this study was to examine the perceived impacts of recreational swimming lesson participation for children with Autism Spectrum Disorder (ASD). Although swimming lessons are a suitable form of physical activity for children with ASD, minimal research has examined the impacts of these lessons. The author conducted semi-structured interviews with an Applied Behaviour Analysis (ABA) certified therapist and a swim instructor, each with experience working with children with ASD in swimming lessons. The participants suggested that swimming lessons encouraged children with ASD to socialise. Both participants agreed that distractions in swimming lessons and barriers in communication created challenges …
Editorial: Born To Swim?,
2019
Bowling Green State University - Emeritus Professor, Developmental Aquatic Kinesiology
Editorial: Born To Swim?, Stephen J. Langendorfer Ph.D.
International Journal of Aquatic Research and Education
Can a child's eventual swim kick and stroke preference be predicted shortly after birth? Read this editorial....
Impact Of Psychological And Physical Stressors On The Exercise-Induced Immune Response In Collegiate Swimmers,
2019
Louisiana State University and Agricultural and Mechanical College
Impact Of Psychological And Physical Stressors On The Exercise-Induced Immune Response In Collegiate Swimmers, Connor Alexander Kuremsky
LSU Master's Theses
Evidence suggests high-intensity exercise training increases incidence of upper respiratory infection in young-adult athletes (Spence et al. 2007). Collegiate athletes experience chronic stress, which has been shown to result in increased proportions of late-differentiated CD8+ T-cells of a dysfunctional phenotype (Bosch et al. 2009). However, many studies fail to consider possible moderators such as psychological stress and cytomegalovirus (CMV) infection. Purpose: To examine the impact of psychological stress, CMV infection, and exercise on proportions of early- and late-differentiated CD4+ and CD8+ T-cells in collegiate swimmers over a 7-month training period. Methods: Data were collected from NCAA …
