Kinesiology Commons^™

Physiological, Musculoskeletal & Anthropometric Characteristics & Performance Between Competitive & Recreational Surfers: A Scoping Review, Harrison Stone, Lucy Douglas, James Furness, Kevin Kemp-Smith, Mike Climstein, Sean Newcomer

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 1277-1293, 2021. Surfing is the ability to ride a surfboard along the unbroken section, wall or face of a wave, as it moves closer towards the shore. The purpose of this review is to provide an overview of the physiological, musculoskeletal and anthropometric characteristics that can differentiate between paddling and wave riding performance in competitive and recreational surfing populations. The eligibility criteria for this scoping review included articles that distinguished between multiple surfing ability groups, identified physiological, musculoskeletal or anthropometric characteristics, were peer reviewed, and directly related to the sport of surfing. The databases …

Exercise Variability Did Not Affect Muscle Thickness And Peak Force For Elbow Flexors After A Resistance Training Session In Recreationally-Trained Subjects, Ethan Smith, Andre Sepulveda, Vincent G.F. Martinez, Ashley Samaniego, Priscyla N. Marchetti, Paulo H. Marchetti

International Journal of Exercise Science

International Journal of Exercise Science 14(3): 1294-1304, 2021. The purpose of this study is to measure the acute effects of exercise variability on muscle thickness and physical performance after two resistance training (RT) protocols using the same or different exercises in recreationally-trained subjects. Fifteen resistance-trained men (23.1 ± 2.6 years, 83.4 ± 16.6 kg, 173.5 ± 8.3cm) performed one of two RT protocols: SINGLE: six sets of 10RM/two-minutes rest of the unilateral biceps curl exercise using cables or MIX: six sets of 10RM/two-minutes rest for the unilateral biceps curl exercises (cable: three sets and dumbbells: three sets, randomly). Muscle thickness …

Different Barbell Height Positions Affect Maximal Isometric Deadlift Force And Subsequent Squat Jump Performance In Recreationally-Trained Men, Jonathan Montano, Elizabeth Torossian, Vincent G.F. Martinez, Leran Lhanie, Shahan Awakimian, Charles Ricardo Lopes, Priscyla N. Marchetti, Paulo Henrique Marchetti

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 1247-1255, 2021. The primary purpose of this study is to examine the effect of two different deadlift barbell height positions on maximal isometric force and subsequent maximal squat jump performance in recreationally-trained men. Fifteen young, healthy, recreationally-trained men (age: 24.7 ± 3.5years, height: 177.1 ± 7.9cm, and total body mass: 81.2 ± 9.8kg) volunteered to participate. All participants performed maximal squat jumps (MSJ) at 90º of knee flexion before (pre-test) and after 4-min (post-test) performing the deadlift exercise using maximal isometric force (MIF) and MIF normalized by body mass (ratio_MIF) in two …

Muscle Performance Changes With Age In Active Women, Ryan M. Miller, Eduardo D. S. Freitas, Aaron D. Heishman, Keldon M. Peak, Samuel R. Buchanan, J. Mikhail Kellawan, Hugo M. Pereira, Debra A. Bemben, Michael G. Bemben

Health & Human Performance Faculty Publications

The purpose of this study was to examine age-related differences in muscle performance in women divided into young (YW, 20–39 years, n = 29) middle-aged (MAW, 40–59 years, n = 33), and older (OW, ≥60 years, n = 40) age groups. Methods: Hand grip strength, vertical jump performance, and knee extensor (KE) strength (0 deg/s, 60 deg/s, and 240 deg/s), speed of movement (SoM; at 1 Nm, 20%, 40%, and 60% isometric strength), and endurance (30-repetition test at 60 degs/s and 240 deg/s) were assessed. Computed tomography-acquired muscle cross-sectional area (mCSA) was measured and included to determine specific strength (KE …

Different Cooling Strategies Applied During Inter-Set Rest Intervals In High-Intensity Resistance Training, Gilmar J. Esteves, Renato A. Garcia, Paulo H. S. M. Azevedo

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 295-303, 2021. The purpose of this study was to verify whether cooling between sets during high-intensity resistance exercise improves physical performance and to compare performance among different sites of cooling. It is important because delaying the muscular fatigue could improve total volume at a training session which could lead to greater hypertrophy. Nine healthy and recreational resistance training experienced men, performed six tests of a biceps curl exercise on different days. The first test was the one-repetition maximum test (1RM). Following, we applied five sessions, in crossover and randomized (counter-balanced) design. The subjects received …

Hip And Pelvic Floor Strength And Mobility In Women With And Without Urgency And Frequency Predominant Lower Urinary Tract Symptoms, Stefanie N. Foster

Arts & Sciences Graduate Student Theses and Dissertations

Urgency and frequency are common lower urinary tract symptoms (LUTS) in women and are accompanied by substantial activity and participation restrictions. Medical management begins with ruling out organ pathologies, typically followed by fluid intake and timed voiding often combined with pharmacologic management, and may progress to nerve stimulation, botulinum injections, or surgery where indicated. Despite abundant management options for urgency and frequency predominant LUTS (UF-LUTS) and high financial burden, patients often experience only partial relief from medical treatments for LUTS. While a great deal of literature exists to inform pharmacologic and surgical care of patients with UF-LUTS, less is known …

Strength And Body Composition Changes Of Junior Hockey Players During The Competitive Season, Dan Marquette

Electronic Theses and Dissertations

Purpose: This study investigated the body composition and strength changes of NAHL junior hockey players across a competitive season. It was hypothesized that players would lose lean body mass loss from pre-season to end-season. The secondary hypothesis was that players would lose strength in relation to the anticipated loss in lean body mass. Methods: Outcome measurements were taken at pre-season, mid-season, and endseason points of a competitive NAHL junior hockey season (n = 15, age = 19.1 years). Body composition was measured using air plethysmography (BodPod) and strength was measured using isokinetic strength testing (Biodex). Results: No significant changes in …

Practices Of Athletic Trainers Using Weight Charts To Determine Hydration Status And Fluid-Intervention Strategies, Jeremy M. Eith, Clint R. Haggard, Dawn M. Emerson, Susan Yeargin Ph.D., Atc

Faculty Publications

Context

Determining an athlete's hydration status allows hydration-related concerns to be identified before significant medical or performance concerns arise. Weight charts are an accurate measure of hydration status changes, yet their clinical use by athletic trainers (ATs) is unknown.

Objective

To investigate ATs' use of weight charts in athletic settings and describe their subsequent clinical decisions.

Design

Cross-sectional survey.

Setting

High schools and National Collegiate Athletic Association Divisions I, II, III and National Association Intercollegiate Athletics colleges.

Patients or Other Participants

A total of 354 ATs (men = 162, women = 175; 17 respondents did not answer the demographic questions) …

Practices Of Athletic Trainers Using Weight Charts To Determine Hydration Status And Fluid-Intervention Strategies, Jeremy M. Eith, Clint R. Haggard, Dawn M. Emerson, Susan W. Yeargin Ph.D., Atc

Faculty Publications

Context

Determining an athlete's hydration status allows hydration-related concerns to be identified before significant medical or performance concerns arise. Weight charts are an accurate measure of hydration status changes, yet their clinical use by athletic trainers (ATs) is unknown.

Objective

To investigate ATs' use of weight charts in athletic settings and describe their subsequent clinical decisions.

Design

Cross-sectional survey.

Setting

High schools and National Collegiate Athletic Association Divisions I, II, III and National Association Intercollegiate Athletics colleges.

Patients or Other Participants

A total of 354 ATs (men = 162, women = 175; 17 respondents did not answer the demographic questions) …

What Factors Predict Upper Body Push To Pull Ratios In Professional Firefighters?, Justin J. Merrigan, Adam A. Burke, Marcie B. Fyock-Martin, Joel R. Martin

International Journal of Exercise Science

International Journal of Exercise Science 13(4): 1605-1614, 2020. Shoulder joint injuries are common for professional firefighters. A potential cause of shoulder injury is an imbalance between anterior (push) and posterior (pull) shoulder joint musculature. Understanding what contributes to these imbalances may help to identify areas needing improvement. The purpose of this study was to investigate different push to pull (P2P) ratios and the relationships among common upper body fitness assessments, body composition, and push to pull (P2P) ratios in firefighters. Thirty-three professional firefighters completed the following testing protocol: one-repetition maximum (1RM) bench press, pull-up repetitions to failure, push-up repetitions to …

Effects Of Horizontal And Incline Bench Press On Neuromuscular Adaptations In Untrained Young Men, Suene F. N. Chaves, Valdinar A. Rocha-Júnior, Irismar G. A. Encarnação, Hugo C. Martins-Costa, Eduardo D. S. Freitas, Daniel B. Coelho, Frederico S. C. Franco, Jeremy P. Loenneke, Martim Bottaro, João B. Ferreira-Júnior

International Journal of Exercise Science

International Journal of Exercise Science 13(6): 859-872, 2020. The aim of the current study was to investigate the effects of horizontal and incline bench press as well as the combination of both exercises on neuromuscular adaptation in untrained young men. Forty-seven untrained men were randomly assigned to one of the three groups: 1) a horizontal bench press group (n= 15), 2) an incline bench press group (n= 15), and 3) a combination (horizontal + incline) group (n= 17). Training was conducted once a week for eight weeks, with equalized number of sets among groups. Muscle thickness, isometric strength and electromyography …

The Acute Effects Of Whole Body Vibration On Isometric Mid-Thigh Pull Performance, W. Guy Hornsby, Mark A. South, Jason D. Stone, Hugh S. Lamont, G. Gregory Haff, Michael H. Stone

Kinesiology

The purpose of the present investigation was to examine the acute effects of whole body vibration (WBV) on isometric mid-thigh pull force–time curve (FTC) characteristics. Eleven recreationally trained subjects were randomly assigned to three treatment conditions: sham no vibration protocol (T1), vibration protocol 30 Hz 2–4 mm amplitude (T2), and vibration protocol 30 Hz 2–4 mm (T3). After completing a standardized warm-up, the subject stood on a vibration platform with the knee at a 120° angle and performed one of the three interventions. Each treatment condition required the subject to stand on the platform for thirty-second treatments, each separated by …

A Comparison Of Muscle Activation Among The Front Squat, Overhead Squat, Back Extension And Plank, David Bautista, Dustin Durke, Joshua A. Cotter, Kurt A. Escobar, Evan E. Schick

International Journal of Exercise Science

International Journal of Exercise Science 13(1): 714-722, 2020. The purpose of this study was to compare the muscle activation of the scapula, leg, and trunk among the front squat (FS), overhead squat (OHS), back extension (BE) and plank (PL). Seven recreationally trained men (age: 28 ± 3.6 years, body mass: 92 ± 26.1 kg, height: 175 ± 5.3 cm, 3-RM front squat test: 125 ± 49.8 kg, 3-RM overhead squat test: 91 ± 15.5 kg) participated in this within-subject crossover design. Two isometric exercises (plank and Biering-Sorenson back extension) were also included for trunk musculature comparisons. Neuromuscular activitation of the …

In-Season Hip Thrust Vs. Back Squat Training In Female High School Soccer Players, Nicole A. Millar, Lauren M. Colenso-Semple, Robert G. Lockie, Risto H.J. Marttinen, Andrew J. Galpin

International Journal of Exercise Science

International Journal of Exercise Science 13(4): 49-61, 2020. The barbell back squat provides a highly effective training stimulus to improve lower body strength, speed, and power, which are considered key components of athletic performance in many sports. The barbell hip thrust exercise utilizes similar musculature, and is popular among practitioners, but has received far less scientific examination. The purpose of this study was to evaluate the effects of an in-season resistance training program with hip thrusts or back squats on physical performance in adolescent female soccer players. Fourteen players completed identical whole-body resistance training twice per week for 6 weeks, …

When Task Constraints Delimit Movement Strategy: Implications For Isolated Joint Training In Dancers, Paige E. Rice, Sophia Nimphius

Research outputs 2014 to 2021

Athletic performance is determined by numerous variables that cannot always be controlled or modified. Due to aesthetic requirements during sports such as dance, body alignment constrains possible movement solutions. Increased power transference around the ankle-joint, coupled with lower hip-joint power, has become a preferential strategy in dancers during leaps and may be considered a dance-specific stretch-shortening cycle (SSC) demand. Newell's theoretical model of interacting constraints includes organismic (or individual), environmental, and task constraints describing the different endogenous and exogenous constraints individuals must overcome for movement and athletic performance. The unique task constraints imposed during dance will be used as a …

Whole Body Vibration As An Innovative Intervention To Improve Physical Function And Vascular Health Within A Lifespan, Stephen Leroy Newhart Jr.

Kinesiology Dissertations - Archive

Over the past several decades, technological advances in computers, transportation devices, and other automated devices have decreased the need for human locomotion and physical activity in the workplace and at home. The need to be physically active in order to sustain and prosper in life has been almost fully eliminated by these technological advances. As a result, sedentary patterns of living have become more prevalent throughout all socioeconomic levels. Age related injuries and conditions including falls and osteoporosis can be debilitating or life ending and have been associated with sedentary behaviors as these can lead to decreased range of motion, …

Implementing Eccentric Resistance Training—Part 2: Practical Recommendations, Timothy J. Suchomel, John P. Wagle, Jamie Douglas, Christopher Taber, Melissa Harden, G. Gregory Haff, Michael H. Stone

Exercise Science Faculty Publications

The purpose of this review is to provide strength and conditioning practitioners with recommendations on how best to implement tempo eccentric training (TEMPO), flywheel inertial training (FIT), accentuated eccentric loading (AEL), and plyometric training (PT) into resistance training programs that seek to improve an athlete’s hypertrophy, strength, and power output. Based on the existing literature, TEMPO may be best implemented with weaker athletes to benefit positional strength and hypertrophy due to the time under tension. FIT may provide an effective hypertrophy, strength, and power stimulus for untrained and weaker individuals; however, stronger individuals may not receive the same eccentric (ECC) …

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 …

Skeletal Muscle Fiber Adaptations Following Resistance Training Using Repetition Maximums Or Relative Intensity, Kevin M. Carroll, Caleb D. Bazyler, Jake R. Bernards, Christopher Taber, Charles A. Stuart, Brad H. Deweese, Kimitake Sato, Michael H. Stone

Exercise Science Faculty Publications

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 …

Effects Of Resistance Training Frequency On Muscle Function Adaptations Using A Multiple-Joint Eccentric Training Model, Joshua Crane

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Eccentric resistance training has been shown to be beneficial for improving multiple performance and health metrics. However, recommendations on eccentric training frequency have not been established. PURPOSE: To investigate the effects of volume-matched resistance training frequency comparing one versus three training days per week of isokinetic multiple-joint eccentric training on strength and lower body function adaptations during a 4-week training period. METHODS: Thirty recreationally-trained men and women were randomly assigned to either a high frequency (HF), three times per week, or low frequency (LF), once per week, training group for four weeks. A motor-driven isokinetic eccentric dynamometer was used for …

Short-Time Β-Alanine Supplementation On The Acute Strength Performance After High-Intensity Intermittent Exercise In Recreationally Trained Men, Marcelo Conrado Freitas, Jason Cholewa, Valéria Panissa, Giovanni Quizzini, João Vitor De Oliveira, Caique Figueiredo, Luis Alberto Gobbo, Erico Caperuto, Nelo Eidy Zanchi, Fabio Lira, Fabrício Eduardo Rossi

Kinesiology

(1) Background: We investigated the effects of 28 days of beta-alanine (β-alanine) supplementation on the acute interference effect of high-intensity intermittent exercise (HIIE) on lower-body resistance exercise performance, body composition, and strength when combined with a resistance training program. (2) Methods: Twenty-two males were randomized into: β-alanine supplementation (6.4 g/day) or placebo (6.4 g/day maltodextrin) during 28 days. Total body water, intracellular and extracellular water, fat-free mass (FFM), and fat mass were assessed using bioelectrical impedance. Participants performed 5000-m HIIE (1:1 effort and rest ratio) followed by resistance exercise (four sets of 80% at 45^◦ leg press until muscular …

Kinetic And Kinematic Characteristics Of Accentuated Eccentric Loading, John Wagle

Electronic Theses and Dissertations

The current investigation was an examination of the kinetic and kinematic characteristics of the back squat using accentuated eccentric loading (AEL) and cluster set programming strategies. Trained male subjects (age = 26.1 ± 4.1 years, height = 183.5 ± 4.3 cm, body mass = 92.5 ± 10.5 kg, back squat to body mass ratio = 1.8 ± 0.3) volunteered to complete four different load condition sessions involving traditionally loaded straight sets (TL), traditionally loaded cluster sets (TLC), AEL cluster sets (AEC), and AEL straight sets where only the first repetition of each set used eccentric overload (AEL1). The use of …

The Effect Of Exercise Order In Circuit Training On Muscular Strength And Functional Fitness In Older Women, Diogo Correia Cardozo, Belmiro Freitas De Salles, Pietro Mannarino, Ana Paula Sena Vasconcelos, Humberto Miranda, Jeffrey M. Willardson, Roberto Simão

International Journal of Exercise Science

International Journal of Exercise Science 12(4): 657-665, 2019.The purpose of this study was to analyze the effect of different orders of exercises in circuit training on strength and functional fitness in older women over a 12-week period. After 10 repetition maximum (10-RM) and functional fitness baseline testing, thirty older women were randomly assigned into two groups. The exercise order for Group 1 was leg press, wide-grip lat pulldown, knee extension, pec deck fly, plantar flexion and triceps extension; Group 2 performed the same exercises, but in the opposite order: triceps extension, plantar flexion, pec deck fly, knee extension, wide-grip …

Common Habits, Adverse Events, And Opinions Regarding Pre-Workout Supplement Use Among Regular Consumers, Andrew R. Jagim, Clayton L. Camic, Patrick S. Harty

Faculty Scholarship

The purpose of the present study was to examine characteristics of multi-ingredient pre-workout supplement (MIPS) users, their common patterns/habits of MIPS ingestion, and their associated feelings about the effectiveness and safety of this class of supplements. An online electronic survey was distributed through social media to assess self-reported supplementation practices and preferences among adult males and females who reported regular MIPS use. A total of 1045 individuals responded, with 872 of these individuals (males: n = 636, 72.9%; females: n = 233, 26.7%; mean ± SD; age = 27.7 ± 7.9 years; training age = 8.2 ± 7.3 years) completing …

An Examination Of The Effects Of Bilateral And Unilateral Very Short-Term Dcer Training On Strength And Neuromuscular Responses Within The Lower Limb Bilateral Deficit, Mark Travis Byrd

Theses and Dissertations--Kinesiology and Health Promotion

The very short-term resistance training (VST) model, utilizing only 2-3 training sessions, has been used to examine early phase skeletal muscle, neural, and performance adaptations. The VST model has previously been used to examine these early phase adaptations in bilateral and unilateral, isometric, isokinetic, and dynamic muscle actions in the limbs of the upper- and lower-body. The bilateral deficit (BLD) is a phenomenon in which the sum of the forces produced unilaterally is greater than the force produced bilaterally during maximal contraction of the limbs. The appearance of a bilateral deficit has been be related to various factors; including training …

Common Ingredient Profiles Of Multi-Ingredient Pre-Workout Supplements, Andrew R. Jagim, Patrick S. Harty, Clayton L, Camic

Faculty Scholarship

Multi-ingredient pre-workout supplements are a popular class of dietary supplements which are purported to improve exercise performance. However, the composition of these products varies substantially between formulations, thus making comparisons challenging. Therefore, the purpose of this study was to identify a common ingredient profile of top-selling pre-workout supplements and to compare ingredient dosages to established efficacious values. The top 100 commercially available pre-workout products were analyzed for listed ingredients and amounts, if available, from the supplement facts panel. The mean ± SD number of ingredients per supplement (n = 100) was 18.4 ± 9.7 with 8.1 ± 9.9 of these …

Pengaruh Latihan Squat Menggunakan Free Weight Dan Gym Machine Terhadap Kekuatan, Power, Dan Hypertrophy Otot, Lia Karina Mansur, Joko Pekik Irianto, Mansur Mansur

Jurnal Keolahragaan

Penelitian ini bertujuan untuk menguji pengaruh latihan squat menggunakan free weight dan gym machine terhadap kekuatan, power, dan hypertrophy otot; dan menguji perbedaan pengaruh latihan squat menggunakan free weight dan gym machine terhadap kekuatan, power, dan hypertrophy otot. Penelitian ini adalah penelitian eksperimen dengan desain two group pretest-posttest design. Sampel dalam penelitian ini dipilih berdasarkan teknik random sampling berjumlah 32 orang. Instrumen untuk mengukur kekuatan menggunakan back and leg dynamometer merk Takei buatan Jepang. Instrumen untuk mengukur power menggunakan Jump Duration of Fright (JDF) seri TKK 5114 buatan Jepang, satuan sentimeter. Instrumen untuk mengukur lingkar otot paha …

Seated Exercise Compared To Standing Exercise In Improving Strength And Endurance In Community-Dwelling Seniors., Karly Zelaska

Kinesiology Student Research - Archive

INTRODUCTION: Wellness and preventive exercise programs are being introduced and becoming more prevalent in senior-living communities. These programs are put in place to reduce the recurring costs of hospitalizations and medical services, as well as to maintain or improve independence in these populations. Oftentimes, chair-based exercises are used to perform resistance training because of the ease, simplicity, and safety that they provide to these senior residents. Many studies have explored the effects that a variety of aerobic and strengthening programs have on improving balance and reducing fall risk in seniors, what remains unanswered is whether doing seated or standing exercises …

Effects Of An Aqueous Extract Of Withania Somnifera On Strength Training Adaptations And Recovery: The Star Trial, Tim N. Ziegenfuss, Anurag W. Kedia, Jennifer E. Sandrock, Betsy J. Raub, Chad Kerksick, Hector L. Lopez

Faculty Scholarship

Withania somnifera (Ashwagandha) is an Ayurvedic herb categorized as having “rasayana” (rejuvenator), longevity, and revitalizing properties. Sensoril® is a standardized aqueous extract of the roots and leaves of Withania somnifera. Purpose: To examine the impact of Sensoril^® supplementation on strength training adaptations. Methods: Recreationally active men (26.5 ± 6.4 years, 181 ± 6.8 cm, 86.9 ± 12.5 kg, 24.5 ± 6.6% fat) were randomized in a double-blind fashion to placebo (PLA, n = 19) or 500 mg/d Sensoril^® (S500, n = 19). Body composition (DEXA), muscular strength, power, and endurance, 7.5 km cycling time trial, and clinical blood …

Effects Of Protein Supplementation On Performance And Recovery In Resistance And Endurance Training, Harry P. Cintineo, Michelle A. Arent, Jose Antonio, Shawn M. Arent Ph.D., Cscs*D, Fissn, Facsm, Fnak

Faculty Publications

There is robust evidence which shows that consuming protein pre- and/or post-workout induces a significant rise in muscle protein synthesis. It should be noted, however, that total daily caloric and protein intake over the long term play the most crucial dietary roles in facilitating adaptations to exercise. However, once these factors are accounted for, it appears that peri-exercise protein intake, particularly in the post-training period, plays a potentially useful role in terms of optimizing physical performance and positively influencing the subsequent recovery processes for both resistance training and endurance exercise. Factors that affect the utility of pre- or post-workout feeding …