Measures Of Fluid Loss During Surfing: A Preliminary Analysis In Recreational Surfers,
2019
Southern Cross University
Measures Of Fluid Loss During Surfing: A Preliminary Analysis In Recreational Surfers, Rudi A. Meir, Zachary James Crowley-Mchattan Dr, Lyndon O. Brooks, Blake Duncan, Christian Gorrie, Jeremy Sheppard
International Journal of Aquatic Research and Education
Surfing is a popular sport, but little is known about the extent to which recreational surfers experience fluid loss from this activity. The principal objective of this research was to estimate fluid loss during a surfing session through changes in pre- to post-session urine color (Ucol), urine osmolality (Uosm), and body mass (BM). Data were collected from 11 recreational surfers across 14 surf sessions conducted under various environmental (mean water temperature = 22.1 SD ± 2.3; range = 20-26oC; air temperature range = 13.1-31.5oC; relative humidity range = 37.5-88.1%) and surfing conditions (e.g. winter/summer, wave type, …
Effects Of Aerobic Exercise Modality On Cognition And Fitness In Breast Cancer Survivors,
2019
Washington State University
Effects Of Aerobic Exercise Modality On Cognition And Fitness In Breast Cancer Survivors, Julie A. Larsen, Judy Knuth
International Journal of Exercise Science
International Journal of Exercise Science 12(3): 1023-1033, 2019. Although cognitive dysfunction is a common occurrence among breast cancer survivors, there is no widely recognized intervention for this debilitating condition. The purpose of this study was to determine whether floor/step aerobics (FSA) and/or treadmill walking (TMW) interventions can improve outcomes when compared to standard care (STC). Recent breast cancer survivors participated in 12 weeks of FSA (n=8), TMW (n=7), or STC (n=10) with pre/post assessments of cognition and fitness. Interaction effects between group and time were assessed with repeated measures ANOVA. Throughout the extent of …
The Relationship Between Lower-Body Strength And Power, And Load Carriage Tasks: A Critical Review,
2019
Tactical Research Unit, Bond University
The Relationship Between Lower-Body Strength And Power, And Load Carriage Tasks: A Critical Review, Robin Marc Orr, J. Jay Dawes, Robert G. Lockie, Daniel Godeassi
International Journal of Exercise Science
International Journal of Exercise Science 12(6): 1001-1022, 2019. The purpose of this review was to critically appraise articles that have investigated the association between lower-body strength and power during load carriage in tactical personnel. Literature databases were searched with specific search terms, yielding 921 articles. Additional studies found from article reference lists were also assessed for eligibility. Out of these articles, 16 met the inclusion/exclusion criteria and were critically appraised. Articles were assessed by the Downs and Black evaluation tool with inter-rater agreement determined by Cohen’s kappa and final results graded according to the Kennelly quality grading system. Of the …
Prevalence Of Disordered Eating And Muscle Dysmorphia In College Students By Predominant Exercise Type,
2019
Bowling Green State University
Prevalence Of Disordered Eating And Muscle Dysmorphia In College Students By Predominant Exercise Type, Taylor E. Lechner, Emily M. Gill, Madeleine J. Drees, Carrie M. Hamady, Mary-Jon Ludy
International Journal of Exercise Science
International Journal of Exercise Science 12(4): 1001-1012, 2019. Many young adults experience distorted body image and decreased body satisfaction. To attain more “ideal” bodies, negative alterations in eating and/or exercise habits are common. This study’s objective was to compare disordered eating and muscle dysmorphia in undergraduates who participate in aerobic-, anaerobic-, or flexibility-predominant exercise; mixed exercise; or no exercise. One hundred twelve undergraduate students (age 21.2 ± 4.8 years; BMI 25.0 ± 4.6 kg/m2) were recruited from the student union and recreation center. The Eating Attitudes Test (EAT-26), Muscle Dysmorphic Disorder Inventory (MDDI), and demographic/exercise questions were administered …
High-Intensity Acute Exercise And Directed Forgetting On Memory Function,
2019
University of Mississippi
High-Intensity Acute Exercise And Directed Forgetting On Memory Function, Mary Elizabeth Pace, Paul D. Loprinzi
Faculty and Student Publications
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. Background and Objectives: Despite accumulating research demonstrating that acute exercise may enhance memory function, very little research has evaluated whether acute exercise can effectuate intentional directed forgetting (DF), an adaptative strategy to facilitate subsequent memory performance. Materials and Methods: A three-arm parallel-group randomized controlled intervention was employed. Participants were randomized into one of three groups, including: (1) exercise plus DF (Ex + DF), (2) DF (directed forgetting) only (DF) and (3) R (remember) only (R). The acute bout of exercise included 15 min of high-intensity treadmill exercise. The memory assessment involved …
Similar Muscular Adaptations In Resistance Training Performed Two Versus Three Days Per Week,
2019
University of São Paulo
Similar Muscular Adaptations In Resistance Training Performed Two Versus Three Days Per Week, Thiago Lasevicius, Brad Jon Schoenfeld, Jozo Grgic, Gilberto Laurentino, Lucas Duarte Tavares, Valmor Tricoli
Publications and Research
The purpose of the present study was to compare changes in muscle strength and hypertrophy between volume-equated resistance training (RT) performed 2 versus 3 times per week in trained men. Thirty-six resistance-trained men were randomly assigned to one of the two experimental groups: a split-body training routine (SPLIT) with muscle groups trained twice per week (n = 18) over four weekly sessions, or a total-body routine (TOTAL), with muscle groups being trained three times per week (n = 18) over three weekly sessions. The training intervention lasted 10 weeks. Testing was carried out pre- and post-study to assess maximal muscular …
Oxygenation And Activation Of The Vastus Lateralis During Dynamic Constant External Resistance Leg Extension Muscle Actions In Older Women With And Without Sarcopenia,
2019
University of Nebraska-Lincoln
Oxygenation And Activation Of The Vastus Lateralis During Dynamic Constant External Resistance Leg Extension Muscle Actions In Older Women With And Without Sarcopenia, Brianna D. Mckay
College of Education and Human Sciences: Dissertations, Theses, and Student Research
The purpose of the present study was to compare muscle strength, size, activation, and oxygenation between older women with and without sarcopenia during dynamic fatiguing leg extension bouts with high (5-repetition maximum[5-RM]) and low (30% of estimated 1-RM[30%1-RM]) loads. Eleven women (n = 6 non-sarcopenic [mean ± SE; age = 75.8 ± 2.6y] and n = 5 sarcopenic [age = 74.5 ± 3.1y]) were screened for eligibility and sarcopenic status. Descriptive assessments including demographics (age, height, and weight), body composition by dual-energy x-ray absorptiometry (fat mass[FM], fat-free mass[FFM] and percent body fat[BF%]), muscle size by ultrasonography (leg extensor muscle cross-sectional …
The Influence Of Strength In Load-Velocity Relationships In The Back Squat,
2019
East Tennessee State University
The Influence Of Strength In Load-Velocity Relationships In The Back Squat, Thaddeus Light
Electronic Theses and Dissertations
Load-velocity relationships may vary between people of different strength levels and across different loads. The purpose of this dissertation was to investigate how external loads influence the velocity characteristics of the back squat exercise, and the influence of strength on these variables. Healthy male students with a history of resistance training completed repetitions at specified intensities of their estimated one-repetition maximum (1RM) until they reached 1RM. Back squat 3D motion analysis was captured using four Vicon T010 cameras (Vicon Motion Systems Ltd.; Oxford, UK) and Vicon Nexus 1.8.5 software. Data were transported into R custom coding statistical analysis software (version …
The Effects Of Branched Chained Amino Acid Supplementation On Acute Markers Of Fatigue And Performance,
2019
East Tennessee State University
The Effects Of Branched Chained Amino Acid Supplementation On Acute Markers Of Fatigue And Performance, Joseph Walters
Electronic Theses and Dissertations
The purposes of this dissertation were to investigate the acute effects of branched-chain amino acids on psychological, physiological, and subsequent performance changes following high volume resistance training. The rationale for this study design was based on abrupt or contiguous training/ competitions that specific athletes encounter in a competitive season. This study design also sought to fill some gaps in the scientific literature concerning the efficacy of BCAAs for subjective fatigue in a resistance training paradigm. To address the purposes of this dissertation, a one-week study was conducted on resistance trained males, in which half of the subjects were randomly selected …
Influence Of Heating And Biological Sex On Vascular Dysfunction Associated With Long-Duration Sitting And Standing,
2019
University of Arkansas, Fayetteville
Influence Of Heating And Biological Sex On Vascular Dysfunction Associated With Long-Duration Sitting And Standing, Aaron Richard Caldwell
Graduate Theses and Dissertations
Purpose: The purpose of these studies was to determine if arterial angulations (through sitting or standing), shear stress (through local heating), or a combination of these factors affected vascular function. Moreover, this studied estimated the magnitude of the effect that biological sex has on these vascular responses. Methods: Twenty-six healthy, young (18-40 years old) males (n=13) and females (n=13) completed two experimental trials (2-h sitting and 2-h standing). In a randomized fashion, one leg was passively heated in order to increase shear rate. Following a 48-h washout, participants returned to the laboratory to complete the other trial. Flow-mediated dilation (FMD) …
Effectiveness Of Studying When Coupled With Exercise-Induced Arousal,
2019
Lindenwood University
Effectiveness Of Studying When Coupled With Exercise-Induced Arousal, Hannah A. Zabriskie, Edward M. Heath
International Journal of Exercise Science
International Journal of Exercise Science 12(5): 979-988, 2019. The basis of learning is knowledge of discrete information such as terms and definitions that can be developed through memorization. A strong knowledge base is something students strive to develop through self-directed study. Little research has investigated the role of simultaneous exercise and memorization on recall ability with a delay in recall of at least 24 hrs. The purpose of this study was to evaluate the effect of an exercise bout on memory by requiring participants to recall words 24 hrs after exposure to three different interventions: memorization while cycling, memorization after …
Skeletal Muscle Fiber Adaptations Following Resistance Training Using Repetition Maximums Or Relative Intensity,
2019
East Tennessee State University
Skeletal Muscle Fiber Adaptations Following Resistance Training Using Repetition Maximums Or Relative Intensity, Kevin M. Carroll, Caleb D. Bazyler, Jake R. Bernards, Christopher B. Taber, Charles A. Stuart, Brad H. Deweese, Kimitake Sato, Michael H. Stone
ETSU Faculty Works
The purpose of the study was to compare the physiological responses of skeletal muscle to a resistance training (RT) program using repetition maximum (RM) or relative intensity (RISR). Fifteen well-trained males underwent RT 3 d·wk−1 for 10 weeks in either an RM group (n = 8) or RISR group (n = 7). The RM group achieved a relative maximum each day, while the RISR group trained based on percentages. The RM group exercised until muscular failure on each exercise, while the RISR group did not reach muscular failure throughout the intervention. Percutaneous needle biopsies of the vastus lateralis were obtained …
Sensitive And Reliable Measures Of Driver Performance In Simulated Motor-Racing,
2019
Griffith University, Gold Coast, Queensland, Australia
Sensitive And Reliable Measures Of Driver Performance In Simulated Motor-Racing, Christopher Irwin, Jamie Mollica, Ben Desbrow
International Journal of Exercise Science
International Journal of Exercise Science 12(6): 971-978, 2019. Motor racing is a physically and mentally demanding sport, associated with a high degree of risk for drivers. Hence, driving simulation provides a safe alternative to explore the impact acute physiological perturbations (e.g. heat stress or dehydration) on a driver’s performance. This study aimed to determine sensitive and reliable simulated driving performance parameters that could be employed in future driving performance studies. Thirty-six healthy males (age: 26.5 ± 8.1 y, body mass: 75.6 ± 12.2 kg, mean ± SD) completed a single experimental trial involving four simulated motor-racing drives (2 initial drives …
No Impact Of Heat Stress And Dehydration On Short Duration Simulated Motor-Racing Performance,
2019
School of Allied Health Sciences, Griffith University, Gold Coast, AUSTRALIA
No Impact Of Heat Stress And Dehydration On Short Duration Simulated Motor-Racing Performance, Jamie Mollica, Ben Desbrow, Christopher Irwin
International Journal of Exercise Science
International Journal of Exercise Science 12(6): 960-970, 2019. Motor-racing drivers are often exposed to hot environments and may be susceptible to fluid loss and hydration issues, which could influence driving performance. This study assessed the effect of dehydration and heat stress on performance during a short, simulated motor-racing task. Nine healthy males (age: 26.6 ± 7.5 y, body mass: 78.8 ± 12.5 kg, mean ± SD) completed two passive dehydration (sauna) procedures (targeting -1% and -3% body mass loss (BML)) on separate occasions. Driving performance was assessed pre-dehydration (Baseline), immediately post-dehydration (Hot) and following a cooling period (Cool). Measures of …
Validity Of The Short Recovery And Stress Scale In Collegiate Weightlifters,
2019
East Tennessee State University
Validity Of The Short Recovery And Stress Scale In Collegiate Weightlifters, Spencer Kyle Travis, Alec Perkins, Satoshi Mizuguchi, Kevin Breuel, Michael H. Stone, Caleb D. Bazyler
ETSU Faculty Works
Introduction: Monitoring an athlete’s stress and recovery state across sequential training bouts can be used to gauge fitness and fatigue levels (i.e., preparedness). Previous studies have used jumping performance, biochemical markers, and questionnaires to estimate preparedness. However, self-report questionnaires are the most common due to economical and practical means. The Short Recovery and Stress Scale (SRSS) is an 8-item questionnaire ideal for monitoring; however, convergent validity of the SRSS with physiological and performance measures needs to be investigated. Purpose: Thus, the purpose of this study was to determine whether changes in collegiate weightlifter’s training volume-load, biochemical markers, and jumping performance …
Effects Of High-Carbohydrate Versus Mixed-Macronutrient Meals On Soccer Physiology And Performance,
2019
Old Dominion University
Effects Of High-Carbohydrate Versus Mixed-Macronutrient Meals On Soccer Physiology And Performance, Jaison Lee Wynne
Human Movement Studies & Special Education Theses & Dissertations
The purpose of the study was to measure the effects of an acute pre-competition high-carbohydrate (HCHO) meal versus a mixed-macronutrient (MM) meal on physiology, perceptual responses, and performance in 15 division I female collegiate soccer players. Being there are conjectural advantages to pre-exercise meals higher in fiber, fat, and protein, this study was conducted to evaluate the physiological and perceptual effects of pre-competition MM meals. This study used a randomized, investigator-blinded, crossover design involving two dietary interventions – HCHO and MM meals – that were consumed four hours prior to two separate intra-squad soccer scrimmages. Assessments included running metrics via …
Comparison Of Single Leg Squat Variations On Lower Limb Muscle Activation And Center Of Pressure Alterations,
2019
University of St Thomas
Comparison Of Single Leg Squat Variations On Lower Limb Muscle Activation And Center Of Pressure Alterations, Mary Grace Knoll, Mackenzie C. Davidge, Claire E. Wraspir, John A. Korak
International Journal of Exercise Science
International Journal of Exercise Science 12(1): 950-959, 2019. Following anterior cruciate ligament reconstruction, individuals experience inadequate functioning of the quadriceps and decreased muscular strength. Decreased function delays return to physical activity and increases potential for re-injury. While several squat variations exist, a new variation has emerged in rehabilitation. The purpose of this study was to compare muscle activation of the Vastus Lateralis (VL), Vastus Medialis (VM), Rectus Femoris (RF), Gluteus Maximus (GM), and anterior posterior center of pressure (AP displacement) alterations during a single leg squat variation (SLS variation) versus a traditional split squat using electromyography (EMG) in healthy active …
Bone Mineral Density Among Men And Women Aged 35 To 50 Years,
2019
University of Mississippi
Bone Mineral Density Among Men And Women Aged 35 To 50 Years, Martha A. Bass, Ankita Sharma, Vinayak K. Nahar, Stacy Chelf, Brittany Zeller, Linda Pham, M. Allison Ford
Faculty and Student Publications
© 2019 American Osteopathic Association. Context: Osteoporosis is characterized by low bone mineral density (BMD) and has been thought to only be a major health concern for postmenopausal women. However, osteoporosis and its risk factors have been greatly understudied in the middle-aged and male populations. Objective: To assess the likelihood of low BMD and its association with related risk factors in early–middle-aged (defined in this study as 35-50 years) men and women.Methods: Eligible men and women completed a questionnaire assessing calcium intake, hours per week of exercise, and other related risk factors associated with osteoporosis and osteopenia. The primary outcome …
The Association Of Handgrip Strength And Mortality: What Does It Tell Us And What Can We Do With It?,
2019
University of South Florida, Tampa
The Association Of Handgrip Strength And Mortality: What Does It Tell Us And What Can We Do With It?, Samuel L. Buckner, Scott J. Dankel, Zachary W. Bell, Takashi Abe, Jeremy P. Loenneke
Faculty and Student Publications
© Copyright 2019, Mary Ann Liebert, Inc., publishers 2019. The relationship between grip strength and mortality is often used to underscore the importance of resistance exercise in physical activity guidelines. However, grip strength does not appear to appreciably change following traditional resistance training. Thus, grip strength could be considered reflective of strength independent of resistance exercise. If true, grip strength is not necessarily informing us of the importance of resistance exercise as an adult, but potentially highlighting inherent differences between individuals who are stronger at "baseline" compared to their weaker counterpart. The purpose of this article is to discuss: (1) …
Effects Of Life-Long Wheel Running Behavior On Plantar Flexor Contractile Properties,
2019
California State University - San Bernardino
Effects Of Life-Long Wheel Running Behavior On Plantar Flexor Contractile Properties, Alexander Nicholas Beechko
Electronic Theses, Projects, and Dissertations
Aging in skeletal muscle is characterized by a loss in muscular performance. This is in part related to the direct loss of muscle mass due to senescence, known as sarcopenia. With age, skeletal muscles lose force production, contractile speed, and power production. The force velocity relationship of muscle is a product of force production and contraction speed, both of which decline with age; however, the mechanisms and trajectory of this decline are not well understood. Exercise has positive effects on muscle, and thus may assist in maintaining performance in old age. However, few long-term studies have been performed to examine …
