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Articles 541 - 570 of 4177

Full-Text Articles in Life Sciences

Towards The Determination Of Estrone And 17Β-Estradiol In Dairy Cattle Waste Using Solid Phase And Stir Bar Sorptive Extractions With Liquid Chromatography-Mass Spectrometry And Gas Chromatography-Mass Spectrometry, Pallavi Ragi May 2022

Towards The Determination Of Estrone And 17Β-Estradiol In Dairy Cattle Waste Using Solid Phase And Stir Bar Sorptive Extractions With Liquid Chromatography-Mass Spectrometry And Gas Chromatography-Mass Spectrometry, Pallavi Ragi

Masters Theses & Specialist Projects

Steroidal hormones are naturally produced as a part of many physiological processes and are excreted in the urine and feces of animals and humans. Farm animals in concentrated animal feeding operations (CAFOs) are routinely implanted with synthetic and natural hormones to enhance growth and production, contributing significantly to environmental steroid hormone contamination. Every year around 49 tons of estrogens are generated by livestock waste in the United States alone. Due to rainfall and runoff, these steroid hormones reach the environment when animal waste is applied as manure. Studies show that estrogens and other steroidal hormones present in the surface waters …

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Agriculture Education Teacher Perspectives On Stem In Secondary Classrooms -A Delphi Study, Nicholas Kyle Porter May 2022

Agriculture Education Teacher Perspectives On Stem In Secondary Classrooms -A Delphi Study, Nicholas Kyle Porter

Masters Theses & Specialist Projects

Recent statistics tell us that the number of jobs in Science, Technology, Engineering and Mathematics (STEM) related fields are growing at a rapid rate, it is projected that STEM related careers will grow 17% between 2008 and 2018 (Langdon, n.d.). Within these areas lies agriculture. Given the shift of career opportunities, such as in the areas of research and development, a change has to be made in the way students are educated within agriculture. The ultimate goal of all educators is to better prepare students for their future careers and endeavors because these students are the future of our food …

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Factors Influencing Tree Growth In A Bottomland Hardwood Along The Green River In Kentucky, Caleb Miller May 2022

Factors Influencing Tree Growth In A Bottomland Hardwood Along The Green River In Kentucky, Caleb Miller

Masters Theses & Specialist Projects

In bottomland hardwood forests, large fluctuations in moisture availability can lead to stress from both flooded and drought conditions. These forests can have a complex species composition with different water use and drought strategies. The bottomlands in which these species co-occur can have a complex spatial distribution of alluvial sediments due to the meandering and migration of river or stream channels, which may impact the hydrology, nutrient dynamics, and productivity. At Western Kentucky University's Green River Preserve, approximately 9 ha of bottomland hardwood forest were planted in 2006. Although these hardwoods have received equal amounts of sunlight, rainfall, and wind, …

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Liquid Chromatography With Tandem Mass Spectrometry Method Development For The Determination Of Β–Defensins In Bovine Milk, Symone T. Whalin May 2022

Liquid Chromatography With Tandem Mass Spectrometry Method Development For The Determination Of Β–Defensins In Bovine Milk, Symone T. Whalin

Masters Theses & Specialist Projects

Bovine mastitis, caused by a wide array of pathogens, results in a substantial economic loss for the dairy cattle livestock industry. β-defensins are a part of the bovine’s innate immune system and act as the first line of defense against mastitis. Only foundational research has been done on β-defensins’ ability to treat and prevent mastitis. There have been no analytical methods reported in the literature for analyzing β-defensins in bovine milk. This research aims to create an analytical approach to determine β-defensins in bovine milk. It is challenging to determine an analyte in a complex sample matrix, and milk is …

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Alfred Russel Wallace Notes 21: Wallace & The Doorway To The Universe, Charles H. Smith May 2022

Alfred Russel Wallace Notes 21: Wallace & The Doorway To The Universe, Charles H. Smith

Faculty/Staff Personal Papers

An important yet largely unrecognized theme in the thought of Alfred Russel Wallace (1823−1913) was his insistence that all dependably-reported phenomena, even those of aberrant nature, were worthy of a respectful kind of attention: that is, a kind which did not automatically banish difficult subjects to the realm of myth or superstition. In this work, Wallace’s philosophy in this direction is documented, and linked to the world of post-Age-of-Enlightenment revisionism.

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Associations Of Bone Mineral Density With Lean Mass, Fat Mass, And Physical Activity In Young Overweight And Obese Women - A Feasibility Study, Meghan E. Garvey, Ling Shi, Alice H. Lichtenstein, Aviva Must, Laura L. Hayman, Scott E. Crouter, Sarah M. Camhi Apr 2022

Associations Of Bone Mineral Density With Lean Mass, Fat Mass, And Physical Activity In Young Overweight And Obese Women - A Feasibility Study, Meghan E. Garvey, Ling Shi, Alice H. Lichtenstein, Aviva Must, Laura L. Hayman, Scott E. Crouter, Sarah M. Camhi

International Journal of Exercise Science

International Journal of Exercise Science 15(7): 585-598, 2022. To examine the associations between bone mineral density (BMD), body composition and habitual physical activity in women who are overweight/obese. We measured whole-body bone, and body composition (lean mass, fat mass, and total fat percent) via dual-energy x-ray absorptiometry (model General Electric Lunar whole-body scanner) in a diverse group of women (N=48, age 26.6+/-4.7 years, 63% Black) living in an urban setting. The relations between BMD with total fat percent [%]), lean mass (kg), fat mass (kg), and physical activity were examined using Pearson correlations and multiple linear regression models, adjusted for …

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The Bigger They Are: Relationships Between Body Height And Mass With The Body Drag Task In Law Enforcement Recruits, Robert G. Lockie, J. Jay Dawes, Robin Marc Orr, Joseph Dulla Apr 2022

The Bigger They Are: Relationships Between Body Height And Mass With The Body Drag Task In Law Enforcement Recruits, Robert G. Lockie, J. Jay Dawes, Robin Marc Orr, Joseph Dulla

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 570-584, 2022. California law enforcement recruits must perform a body drag before they graduate academy. While this task may be challenging for smaller recruits, no research has analyzed height and body mass relationships with the body drag. Data from 643 recruits (542 males, 101 females) who completed the drag in the final weeks of academy were analyzed. The recruits lifted a 74.84-kg, 1.73-m tall dummy and dragged it 9.75 m as quickly as possible. Independent samples t-tests compared the sexes; partial correlations controlling for sex detailed relationships between height and body mass with …

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Tri-Set Training System Induces A High Muscle Swelling With Short Time Commitment In Resistance-Trained Subjects: A Cross-Over Study, Julio Benvenutti Bueno De Camargo, Rafael Sakai Zaroni, Antônio Carlos Tavares Júnior, Thiago Pires De Oliveira, Thiago Barbosa Trindade, Charles Ricardo Lopes, Felipe Brigatto Apr 2022

Tri-Set Training System Induces A High Muscle Swelling With Short Time Commitment In Resistance-Trained Subjects: A Cross-Over Study, Julio Benvenutti Bueno De Camargo, Rafael Sakai Zaroni, Antônio Carlos Tavares Júnior, Thiago Pires De Oliveira, Thiago Barbosa Trindade, Charles Ricardo Lopes, Felipe Brigatto

International Journal of Exercise Science

International Journal of Exercise Science 15(3): 561-569, 2022. The purpose of the present study was to assess performance and morphological acute responses to the tri-set (TRI) resistance-training system. In a random order, 18 subjects (years: 30.0 ± 5.6; weight: 81.8 ± 13.4 kg; height: 173 ± 6.2 cm; RT experience: 4.6 ± 1.7 years) performed 3 exercises targeting the pectoralis major muscle in two different experimental conditions: traditional system (TRAD) and TRI. The TRAD protocol referred to the completion of a single exercise set followed by a rest period. For the TRI protocol, one set of each exercise was performed …

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The Validity Of Perceptual Recovery Status On Monitoring Recovery During A High-Intensity Back Squat Session, Nicholas Buoncristiani Apr 2022

The Validity Of Perceptual Recovery Status On Monitoring Recovery During A High-Intensity Back Squat Session, Nicholas Buoncristiani

Masters Theses & Specialist Projects

Adaptations to resistance training and subsequent performance can be undermined by inadequate inter-set recovery. This time between sets is often uniformly prescribed based on desired training outcomes; however, there is demonstrative evidence that recovery is highly individualized. Methods typically used to monitor recovery were developed for longitudinal use, making them cost- or time -inefficient within a bout of exercise. If valid, the perceptual recovery status (PRS) scale may be used as an efficient and inexpensive recovery assessment tool to monitor individual recovery as well as appropriately modify rest periods. Purpose: The aim of the current study was to assess the …

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Alleviating Human-Elephant Conflict Through Deterrent Fences And Environmental Monitoring In Southern Kenya, Sophia Carmen Corde Apr 2022

Alleviating Human-Elephant Conflict Through Deterrent Fences And Environmental Monitoring In Southern Kenya, Sophia Carmen Corde

Masters Theses & Specialist Projects

Human-wildlife conflict is present across the world. In areas where human settlements overlap with elephant habitats, human-elephant conflict can result from crop raiding events, compromising farmers’ food and economic security, and putting humans and elephants in danger through farmer retaliation. Elephants raid crops primarily at night, when detection by humans is lowest, and during the dry season, as crops are developing towards harvest and natural forage quality drops. People living in these areas facing HEC have developed mitigation strategies to lessen the impacts and move towards coexistence. As a team member on the Elephants and Sustainable Agriculture in Kenya project, …

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Do Changes In The Navy Physical Readiness Test Impact Performance?, Alison Colao Apr 2022

Do Changes In The Navy Physical Readiness Test Impact Performance?, Alison Colao

Masters Theses & Specialist Projects

The fitness level of our service members is of utmost importance due to the nature of their occupation. This study investigated whether changes to the Navy’s Physical Readiness Test (PRT) impact performance on the fitness test. Participants were college-aged males between the ages of 18 and 29 (n=20; 21.05±2.01 years; BMI 24.85± 2.74). Participants performed both the New PRT and Old PRT at two separate randomized visits. Protocols included push-ups, curl-ups (old version) or a forearm plank hold (new version), and a 1.5-mile run. At the end of each exercise, the participant’s heart rate and rating of perceived exertion (RPE) …

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The Validity & Reliability Of The Repetitions In Reserve Based Rating Of Perceived Exertion Scale In Single Joint Exercise, Grant Malone Apr 2022

The Validity & Reliability Of The Repetitions In Reserve Based Rating Of Perceived Exertion Scale In Single Joint Exercise, Grant Malone

Masters Theses & Specialist Projects

Introduction: Intentional regulation and individualization of resistance training schemes are imperative when structuring a resistance training program. Optimal adaptation cannot be expected without proper manipulation of training variables such as load and volume. Load is traditionally prescribed by testing a given exercise’s repetition maximum and basing intensity from that load. This method of intensity regulation may be limited, considering it fails to recognize the day-to-day undulation of individual performance which can be impacted by several variables. A flexible method of regulating load and volume would be of use for those undergoing a resistance training program. The repetitions in reserve-based rating …

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Differences In Stronger Versus Weaker Firefighters In Selected Measures Of Power, Quincy Johnson, J. Jay Dawes, Melissa Uftring, Marcel Lopes Dos Santos, Davis Hale, Gabriel J. Sanders, Will Peveler, Roger O. Kollock Mar 2022

Differences In Stronger Versus Weaker Firefighters In Selected Measures Of Power, Quincy Johnson, J. Jay Dawes, Melissa Uftring, Marcel Lopes Dos Santos, Davis Hale, Gabriel J. Sanders, Will Peveler, Roger O. Kollock

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 552-560, 2022. Firefighters are required to perform a wide array of physically demanding job tasks, such as forcible entry, charged hose advances and victim extractions. An adequate level of muscular strength and power are required to successfully perform these tasks. The purpose of this study is to investigate the differences in stronger and weaker firefighters in measures of power. Archived data for twenty-seven (age = 34.3 ± 7.9 yr, body height = 176.3 ± 7.2 cm, body mass = 89.4 ± 15.7 kg) full-time firefighters were analyzed. Participants were placed into one of two …

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Effects Of Six-Week Periodized Versus Non-Periodized Kettlebell Swing Training On Strength, Power And Muscular Endurance, Evaldo Rui Tavares Santos Junior, Belmiro De Salles, Ingrid Dias, Roberto Simão, Jeff Willardson Mar 2022

Effects Of Six-Week Periodized Versus Non-Periodized Kettlebell Swing Training On Strength, Power And Muscular Endurance, Evaldo Rui Tavares Santos Junior, Belmiro De Salles, Ingrid Dias, Roberto Simão, Jeff Willardson

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 526-540, 2022. The purpose of this study was to compare a periodized versus a non- periodized protocol of kettlebell (KTB) swings over six weeks on strength, power, and muscular endurance. Twenty-eight high intensity functional training (HIFT) practitioners were assigned to non- periodized (NPG = 11), periodized (PG = 11), or control groups (CG = 6). NPG used the same load (20 kg) throughout the training period while the PG used a step loading progression (with an added four kilograms every two weeks). Measures of strength and muscular endurance in the deadlift exercise, and power …

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Effect Of Different Numbers Of Interset Antagonist Proprioceptive Neuromuscular Facilitation Stretching On The Total Number Of Repetitions For The Agonists, Humberto Miranda, Aline Aparecida De Oliveira, Juliana Soares Dos Santos Ribeiro, Fabio Henrique De Freitas, Juliana Brandão Pinto De Castro, Renato L. Alvarenga, Jeff Willardson Mar 2022

Effect Of Different Numbers Of Interset Antagonist Proprioceptive Neuromuscular Facilitation Stretching On The Total Number Of Repetitions For The Agonists, Humberto Miranda, Aline Aparecida De Oliveira, Juliana Soares Dos Santos Ribeiro, Fabio Henrique De Freitas, Juliana Brandão Pinto De Castro, Renato L. Alvarenga, Jeff Willardson

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 498-506, 2022. Recent studies have observed that stretching applied to antagonist muscles can promote improvement in agonist muscle performance. The purpose of this study was to investigate the effect of different numbers of interset proprioceptive neuromuscular facilitation (PNF) stretching for the antagonists on the total number of repetitions completed for the agonists (quadriceps) in the leg extension exercise. Fourteen physically active individuals (age: 29.35 ± 10.5 years; body mass: 79.1 ± 11.34 kg; height: 170.4 ± 8.7 cm) participated in this study. The following experimental protocols were performed: 1) Traditional protocol (Traditional) …

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Pre-Exhaustion Training, A Narrative Review Of The Acute Responses And Chronic Adaptations, Thiago Trindade, Ragami Alves, Bruno De Castro, Matheus De Medeiros, Jason De Medeiros, Paulo Dantas, Jonato Prestes Mar 2022

Pre-Exhaustion Training, A Narrative Review Of The Acute Responses And Chronic Adaptations, Thiago Trindade, Ragami Alves, Bruno De Castro, Matheus De Medeiros, Jason De Medeiros, Paulo Dantas, Jonato Prestes

International Journal of Exercise Science

International Journal of Exercise Science 15(3): 507-525, 2022. Pre-exhaustion (PE) is a popular resistance training strategy that involves performing a single-joint exercise followed by a multi-joint exercise with minimal recovery between the transition. This approach is widely used by bodybuilding athletes and resistance training (RT) enthusiasts with the aim of enhancing muscle strength and hypertrophy. The present paper aimed to provide a narrative review as to the effects of the PE method on different acute and chronic outcomes, and discuss relevant practical applications. When considering the body of literature as a whole, we conclude that current evidence does not support …

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Electromyographic Examination Of Hip And Knee Extension Hex Bar Exercises Varied By Starting Knee And Torso Angles, Edward Jo, Kevin A. Valenzuela, Whitney Leyva, Jennifer Rivera, Kalin Tomlinson, Elisabeth Zetiz Mar 2022

Electromyographic Examination Of Hip And Knee Extension Hex Bar Exercises Varied By Starting Knee And Torso Angles, Edward Jo, Kevin A. Valenzuela, Whitney Leyva, Jennifer Rivera, Kalin Tomlinson, Elisabeth Zetiz

International Journal of Exercise Science

International Journal of Exercise Science 15(1): 541-551, 2022. Variations of the deadlift can be executed using the hexagonal (hex) bar by altering, for instance, the knee and torso angles while maintaining a constant hip angle at the start position. PURPOSE: To examine muscle activation patterns of the biceps femoris, rectus femoris, and erector spinae during three deadlift variations using the hex bar. METHODS: Twenty resistance-trained male and female subjects performed hex bar deadlift variations in three different starting knee flexion positions: 128.4 ± 8.5°, 111.9 ± 8.7°, and 98.3 ± 6.5°. Subjects performed three repetitions at 75% of their three-repetition …

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Assessment Of Relationships Between External Load Metrics And Game Performance In Women’S Lacrosse, Libby Bynum, Ronald Snarr Jr., Bradley Myers 8931361, Jennifer A. Bunn Mar 2022

Assessment Of Relationships Between External Load Metrics And Game Performance In Women’S Lacrosse, Libby Bynum, Ronald Snarr Jr., Bradley Myers 8931361, Jennifer A. Bunn

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 488-497, 2022. The purpose of this study was to analyse the relationship between external load metrics with game performance for Division I collegiate female lacrosse. Data were collected using microtechnology during 26 games with 13 athletes (attackers n = 5, midfielders n = 8). External load variables included: total distance (TD), distance rate (DR), high-intensity (HI) distance, speed, HI sprints, accelerations, decelerations, metabolic equivalent distance (MED), and sprints. For attackers, goals, points, shots, and shots on goal (SOG) had low, positive associations with TD (r = 0.32 to 0.42) and MED (r …

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Evaluating Novel Methods Of Classifying Interlimb Asymmetries Within Collegiate American Football Players, Nicolas M. Philipp, Derek A. Crawford, Matthew J. Garver, H. Scott Strohmeyer Mar 2022

Evaluating Novel Methods Of Classifying Interlimb Asymmetries Within Collegiate American Football Players, Nicolas M. Philipp, Derek A. Crawford, Matthew J. Garver, H. Scott Strohmeyer

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 473-487, 2022. Over the last few years, researchers and sport scientists have expressed an increased interest in the effects of interlimb asymmetry on aspects of sport performance such as jumping, sprinting, and changing direction. This study aimed to evaluate the diagnostic utility of three different means of classifying asymmetry to highlight if a 6-week resistance training intervention can meaningfully reduce levels of asymmetry, and to determine the relation between asymmetry reduction and improvements in change of direction (CoD) performance, if any. Eighteen, division-two collegiate American football skill position players completed all pre- and post-intervention …

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Acute Ingestion Of A Commercially Available Pre-Workout Supplement Improves Anaerobic Power Output And Reduces Muscular Fatigue, Sotiris Panayi, Andy Galbraith Mar 2022

Acute Ingestion Of A Commercially Available Pre-Workout Supplement Improves Anaerobic Power Output And Reduces Muscular Fatigue, Sotiris Panayi, Andy Galbraith

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 455-472, 2022. The effect of a pre-workout supplement on anaerobic power output and muscular fatigue was examined. 18 participants took part in this double-blinded crossover study, reporting for testing on 3 occasions. Participants completed a 6x6 second repeated sprint test, with 20s recovery between sprints. Anaerobic power output was recorded as the highest power achieved during sprint test. Muscular fatigue was reported as a fatigue index across the six sprints ((maximum power – minimum power) ÷ total sprint time). During a baseline visit, participants consumed 250ml of water 30 minutes prior to testing, whilst …

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High-Risk Environmental Conditions Attenuates Performance Efficiency Index In Ncaa Di Female Soccer Players, Maxine Furtado Mesa, Jeffrey R. Stout, David H. Fukuda, Michael J. Redd, Adam J. Wells Mar 2022

High-Risk Environmental Conditions Attenuates Performance Efficiency Index In Ncaa Di Female Soccer Players, Maxine Furtado Mesa, Jeffrey R. Stout, David H. Fukuda, Michael J. Redd, Adam J. Wells

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 442-454, 2022. The purpose of this study was to evaluate the effects of environmental conditions on running performance and performance efficiency index (Effindex). Performance data recorded using Polar Team Pro sensors from eight collegiate female soccer players in nine matches were analyzed during the 2019 competitive season. Effindex and running performance, including total distance covered (TDREL) and distance covered in five speed thresholds relative to minutes played, were examined for indications of fatigue with respect to environmental conditions, including ambient temperature and relative humidity. Matches were separated into three groups based on …

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The Impact Of Early Morning Training Sessions On Total Sleep Time In Collegiate Athletes, Brandon Merfeld, Austin Mancosky, Joel Luedke, Shalynn Griesmer, Jacob Erickson, Victoria Carvalho, Andrew R. Jagim Mar 2022

The Impact Of Early Morning Training Sessions On Total Sleep Time In Collegiate Athletes, Brandon Merfeld, Austin Mancosky, Joel Luedke, Shalynn Griesmer, Jacob Erickson, Victoria Carvalho, Andrew R. Jagim

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 423-433, 2022. Early morning training sessions may affect sleep quantity in athletes. The purpose of this study is to examine differences in total sleep time of collegiate athletes on nights prior to early morning training sessions relative to non-training nights. Wristwatch monitors equipped with photoplethysmography and accelerometer technology were worn by 18 NCAA Division III collegiate athletes (Age: 20.1 ± 1.6 years, Height: 1.81 ± 0.02 m, Body Mass: 91.2 ± 6.5 kg, Body Fat %: 20.8 ± 1.6%) during a two-week period of training to monitor total sleep times. Athletes recorded time in …

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Comparison Of A Continuous And Discontinuous Gxt On Vo2 In Resistance-Trained And Endurance-Trained Males, Brandon D. Shepherd, Ffion G. Price, Ben Krings, Johneric W. Smith Mar 2022

Comparison Of A Continuous And Discontinuous Gxt On Vo2 In Resistance-Trained And Endurance-Trained Males, Brandon D. Shepherd, Ffion G. Price, Ben Krings, Johneric W. Smith

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 414-422, 2022. Traditional graded exercise testing to assess maximal oxygen uptake (VO2max) may not well represent resistance-trained athletes due to their unfamiliarity with continuous exercise. For this reason, it is possible discontinuous exercise protocols may better represent the maximum capacity for aerobic metabolism in resistance-trained athletes, in order to provide a more valid assessment of VO2max and risk of developing cardiovascular disease. Purpose: The purpose of this experiment was to compare VO2peak during a continuous and discontinuous modified Bruce protocol in both highly resistance-trained and endurance-trained males. Methods: 19 college-aged …

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Is It Safe For Hemodialysis Patients To Seek Gains With Less Pain? Acute Hemodynamic Response To Intradialytic Blood Flow Restriction Training, Rony Nobre, Rodrigo Cardoso, Aline Araujo, Rafael Orcy, Jeniffer Aquino, Larissa Ribeiro, Rafaela Catto, Ana Carolina Conteratto, Airton Rombaldi, Maristela Bohlke Mar 2022

Is It Safe For Hemodialysis Patients To Seek Gains With Less Pain? Acute Hemodynamic Response To Intradialytic Blood Flow Restriction Training, Rony Nobre, Rodrigo Cardoso, Aline Araujo, Rafael Orcy, Jeniffer Aquino, Larissa Ribeiro, Rafaela Catto, Ana Carolina Conteratto, Airton Rombaldi, Maristela Bohlke

International Journal of Exercise Science

International Journal of Exercise Science 15(2): 434-441, 2022. Considering that the hemodynamic safety is a major concern about intradialytic exercise with blood flow restriction, this analysis was performed to compare the blood pressure (BP) behavior during the first two hours of hemodialysis (HD) between sessions with no exercise (control group, CG), low/moderate intensity aerobic exercise with blood flow restriction (BFRE) and conventional aerobic exercise (AE). Adult patients with chronic kidney disease on HD at a university hospital were randomly assigned and submitted to a 12-week intradialytic training with BFRE or AE compared with the CG group. The main outcomes of …

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Parent Motivational Climate, Sport Enrollment Motives, And Young Athlete Commitment And Enjoyment In Year-Round Swimming, Rachel E. Williams, Christine M. Habeeb, Thomas D. Raedeke, Dee Dlugonski, Katrina D. Dubose Feb 2022

Parent Motivational Climate, Sport Enrollment Motives, And Young Athlete Commitment And Enjoyment In Year-Round Swimming, Rachel E. Williams, Christine M. Habeeb, Thomas D. Raedeke, Dee Dlugonski, Katrina D. Dubose

International Journal of Exercise Science

International Journal of Exercise Science 15(5): 358-372, 2022. Parents are known to influence the athlete sport experience through motivational climates. Athletes’ perception of motivational climates and their own motives for sport participation influence enjoyment and long-term sport commitment. It is unknown, however, the extent parent motives for initially enrolling their child in a year-round sports program associate with children’s sport participation enjoyment and commitment. The purposes of this study were to (a) determine parent motives for enrolling their child (5-8 years) in year-round swimming and (b) explore the relationships of parent motives and motivational climates with child enjoyment and commitment. …

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Validation Of A New Ramping Aerobic Exercise Protocol (Ndks) In Overweight, Obese, And Normal Weight Individuals, Jill K. Nustad, Mckaela E. Halvorson, Alexa L. Scott Feb 2022

Validation Of A New Ramping Aerobic Exercise Protocol (Ndks) In Overweight, Obese, And Normal Weight Individuals, Jill K. Nustad, Mckaela E. Halvorson, Alexa L. Scott

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 386-398, 2022. The research purpose was to establish reliability and validity of determining VO2max via a new NDKS (Nustad Dressler Kobes Saghiv; named for the sir names of department faculty at the time) ramping protocol compared to the Standard Bruce protocol in normal weight, overweight, and obese individuals. Forty-two physically active participants (23M, 19F) ages 18-28 years were grouped into normal weight (N = 15, 8F, BMI 18.5-24.9 kg/m2), overweight (N = 27, 11F, BMI = 25-29.9 kg/m2), and Class I obese (N = 7, 1F, …

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Effect Of Different Training Programs At Self-Selected Intensity On Body Composition, Perceptual Responses And Fitness Outcomes In Obese Women, Ragami Chaves Alves, Alysson Enes, Lucio Follador, Jonato Prestes, Sérgio Gregório Da Silva Feb 2022

Effect Of Different Training Programs At Self-Selected Intensity On Body Composition, Perceptual Responses And Fitness Outcomes In Obese Women, Ragami Chaves Alves, Alysson Enes, Lucio Follador, Jonato Prestes, Sérgio Gregório Da Silva

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 373-385, 2022. Obesity induces several disorders, such as android obesity, insulin resistance, and coronary/peripheral artery disease, and obese individuals commonly have low adherence to training programs. Exercise at self-selected intensity is a feasible strategy to avoid dropouts of training routines. We aimed to assess the effects of different training programs at self-selected intensity on body composition, ratings of perceived exertion (RPE), feelings of pleasure and displeasure (FPD) and fitness outcomes (maximum oxygen uptake (VO2max) and maximum dynamic strength (1RM)) in obese women. Forty obese women (n = 40; Body Mass Index: 33.2 ± …

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Acute Effects Of Velocity-Based Resistance Training On The Physical Functional Performance Of Older Adults, Suzy S. Pinto, Ewertton S. Bezerra, Keuly G. Silva, Rodrigo Ramirez-Campillo, Abderaouf B. Abderrahman Feb 2022

Acute Effects Of Velocity-Based Resistance Training On The Physical Functional Performance Of Older Adults, Suzy S. Pinto, Ewertton S. Bezerra, Keuly G. Silva, Rodrigo Ramirez-Campillo, Abderaouf B. Abderrahman

International Journal of Exercise Science

International Journal of Exercise Science 15(3): 399-413, 2022. The aim of this study was to analyse the acute effects of velocity-based resistance training on the physical and functional performance of older adults. Twenty participants (70.4 ± 7.4 years) performed the deadlift exercise, in two different resistance training protocols. The moderate-velocity protocol (MV) predicted maximum loads so that the movement velocity during the concentric phase remained in the range of 0.5 to 0.7 m/s and the high-velocity protocol (HV) predicted maximum loads so that the movement velocity remained between 0.8 and 1.0 m/s. The jump height (cm), handgrip strength (kg), and …

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Using Personality And Temperament To Predict Exercise Behavior: A Pilot Study Of The Braverman Nature Assessment, Ben M. Rosicky, Eric E. Hall Feb 2022

Using Personality And Temperament To Predict Exercise Behavior: A Pilot Study Of The Braverman Nature Assessment, Ben M. Rosicky, Eric E. Hall

International Journal of Exercise Science

International Journal of Exercise Science 15(5): 341-357, 2022. The Braverman Nature Assessment (BNA) is intended to determine the dominant monoamine neurochemical that drives an individual’s temperament and behavior. The measure has been colloquially praised for the ability to determine the most effective exercise protocols for an individual based on their “dominant nature.” This study seeks to examine the proposed relationship between the Braverman Natures and exercise behavior. Seventy-three adults (57 females) between ages 18-65 (mean = 26 years) completed an online survey consisting of the BNA, Big Five Personality Inventory (BFI), and Aerobics Center Longitudinal Study Physical Activity Questionnaire (ACLSPAQ). …

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Chronic Effects Of Heavy Load Activity Performed Before Resistance Training Sessions On The Physical Performance Of Youth Soccer Players, Guilherme Borsetti Businari, Julio Benvenutti Bueno De Camargo, Paulo Henrique Barbosa, Felipe Alves Brigatto, Marcelo Saldanha Aoki, Tiago Volpi Braz, Charles Ricardo Lopes Feb 2022

Chronic Effects Of Heavy Load Activity Performed Before Resistance Training Sessions On The Physical Performance Of Youth Soccer Players, Guilherme Borsetti Businari, Julio Benvenutti Bueno De Camargo, Paulo Henrique Barbosa, Felipe Alves Brigatto, Marcelo Saldanha Aoki, Tiago Volpi Braz, Charles Ricardo Lopes

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 1421-1434, 2021. The adoption of resistance training (RT) programs has been shown to positively influence sports performance-related parameters. However, the chronic effects of maximal strength protocols on the performance of soccer players are not completely investigated. The aim of this study was to evaluate the effects of performing two repetition maximum (2RM) before a resistance training session on the physical performance of youth soccer players. Seventeen players (under-20 category) were allocated in one of the following groups: 2RM + resistance training group (2RM + RT, n = 8) and resistance training group (RTG, n …

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