Kinesiology Commons^™

Limits Of Post-Activation Performance Enhancement: Asymmetry Persists Despite Performance Gains, Talia Thompson, Monique Mokha

Journal for Sports Neuroscience

Post-activation performance enhancement (PAPE) protocols are commonly used to improve power, yet their influence on inter-limb force symmetry remains unclear. This study examined the effects of a PAPE protocol on inter- and intra-session symmetry and performance during a countermovement (CMJ. Ten American football players preparing for the National Football League’s draft completed a complex PAPE protocol consisting of two baseline CMJ trials on dual uniaxial force plates, followed by three sets of maximum effort lower-body lifts (e.g., split squats) alternated with two CMJ trials. Jump height (JH), reactive strength index modified (RSImod), and asymmetry indices for concentric impulse (CIA), eccentric …

Variances In Power Output Of Female Athletes During The Menstrual Phases, Julia L. Allen

Masters Theses

The purpose of this research was to examine if there are any variances in a female athlete’s ability to produce power, that could be correlated with the menstrual cycle phases. The study observed three elite female athletes throughout 13 weeks, collecting relative propulsive power and relative braking power data from their vertical jump performances which occurred multiple times a week. At the end of the 13 weeks, participating athletes were asked to download their personal Oura Ring data. The Oura data points included in this study were used to identify and measure several physiological factors such as menstrual cycle day, …

Reliability Of Vertical Jump Force-Time Metrics In Collegiate Athletes Compared To Recreationally Active Individuals, Dimitrije Cabarkapa, Robert Smith, Luke Chowning, Tyler Neltner, Quincy R. Johnson, Yang Yang, Thayne A. Munce

Faculty Scholarship

As neuromuscular performance assessment has become a fundamental component of athlete monitoring, ensuring strong measurement reliability is essential for supporting accurate data-driven decision-making. Thus, the purpose of this study was twofold: (i) to examine the reliability of countermovement vertical jump (CMJ) force-time metrics obtained using a portable force plate system (Hawkin Dynamics) and (ii) to determine whether absolute and relative reliability scores differ between well-trained individuals (i.e., athletes) and those less familiar with CMJ force-plate testing (i.e., non-athletes). Seventy-four participants volunteered to take part in this investigation, of whom thirty-nine were NCAA Division-I baseball and track-and-field athletes and thirty-five age-matched …

Acute Effect Of A Multi-Ingredient Pre-Workout Supplement On Pacing And Kinetic Expression During Shorter And Longer Bouts Of High Intensity Functional Training, Gerald Mangine, Christopher Staples, James W. Henley, Ashley Hines, Kristyn C. Mcgeehan, Wysmark Chaves, Wil King, Tiffany A. Esmat, John R. Mclester, Jacob L. Grazer

Faculty Articles

Background: High-intensity functional training (HIFT) varies daily workout programming, and trainees are often tasked with completing “as many repetitions as possible” (AMRAP) within a set time. Successful performance depends on fatigue management skills and maintaining a consistent expression of force and velocity when performing and transitioning between exercises over the duration of the workout. Multi-ingredient preworkout (MIPS) supplement formulations often contain ingredients shown to facilitate energy availability and mitigate fatigue, and therefore, might positively affect HIFT performance. This study aimed to assess a multi-ingredient pre-workout supplement’s acute effect on pacing and the expression of kinetics throughout a 5- and 15-minute …

The N-Pact Factor, Replication And Power Associated With Quantitative Research In Physical Activity And Health, Angelina Haidar, Jeffrey J. Martin, Adam J. Martin, Sarah Rogers, Fatemeh Dehghan, Eva Prokesova

International Journal of Physical Activity and Health

Physical Activity (PA) and health science researchers often face challenges related to sample size, which can impact the reliability and generalizability of study findings. The purpose of the current paper is to address these issues by discussing key statistical concepts: effect size and Type I and Type II errors, with a specific focus on examining statistical power and sample size using studies from the Disability and Health Journal (DHJ). We examined research articles published in DHJ over a 15-year period (2008–2022), covering 62 issues and analyzing a total of 1,177 articles. Our analysis revealed that the median sample sizes …

Moderate-To-High Velocity Eccentric Torque Differences In Older Female Adults, Ayla Mae Gabel

Boise State University Theses and Dissertations

Introduction: As individuals age, they are often confronted with age-related physical declines that can impede their ability to perform activities of daily living (ADLs) and elevate the risk of experiencing falls. While multiple factors may contribute to these physical decrements, muscular power diminishes more rapidly than strength across the lifespan, and serves as a more reliable predictor of fall risk among community-dwelling older adults. This early loss of power may be associated with low physical activity levels, age-related muscle atrophy, or impaired neuromuscular function; however, these findings are inconclusive. One area warranting further investigation involves exploring the contribution of different …

Validity, Reliability, And Sensitivity Of A Commercially Available Barbell Velocity Measuring Device When Performing Selected Exercises., Daniel J. Lawson, Alex A. Olmos, Cody A. Stahl, Marcel Lopes Dos Santos, Jacob R. Goodin, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 17(4): 1250-1279, 2024. The aim of this study was to determine the validity, reliability, and sensitivity of a new linear position transducer (LPT) device (RepOne) to a previously validated LPT (Tendo) during the barbell back squat and bench press exercises. Fourteen recreationally resistance-trained individuals (7 males and 7 females) performed three repetitions for the back squat and bench press at loads ranging from 30–90% 1RM. Both devices recorded average (ACV) and peak (PCV) concentric velocities concurrently for every repetition at each load. Significant correlations were observed between RepOne and Tendo during the back squat (PCV: …

The Use Of Musculoskeletal Fitness Measures As Indicators Of Performance In Police Occupational Tasks, Elisa F.D. Canetti, Robin Marc Orr, William Brown, Ben Schram, Robert G. Lockie, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 17(4): 819-830, 2024. Fitness testing is employed by some law enforcement agencies to assure performance in occupational tasks. The aim of this study was to investigate associations between musculoskeletal fitness assessment scores and performance in police occupational tasks. Retrospective data from 106 law enforcement officers who completed five musculoskeletal fitness assessments (vertical jump (VJ), hand grip strength, leg back dynamometer, 1-minute push-ups and sit-ups) and three routine occupational tasks (1.22m fence jump (FJ), 8.5m victim drag (VD) with 101kg and a get-up (GU)) were collected. A standard multiple regression was performed to determine if the …

A Comprehensive Examination Of Age-Related Lower Limb Muscle Function Asymmetries Across A Variety Of Muscle Action Types, Kylee L. Heap-Eldridge, Brennan J. Thompson, Cody Fisher, Talin J. Louder, Jon Carey

Kinesiology and Health Science Faculty Publications

Previous research has found that lower limb muscle asymmetries increase with age and are linked to fall and injury risks. However, past studies lack a wide variety of muscle function modes and measures as well as comparison to a comparable younger age group. The purpose of this study was to examine age-related lower limb muscle function asymmetries across a variety of muscle action types and velocities in young and old adults. Lower limb balance, strength, power, and velocity were evaluated with concentric, isometric, isotonic, and eccentric muscle actions during a single-leg stance test and on single- and multi-joint dynamometers in …

Does Box Height Matter? A Comparative Analysis Of Box Height On Box Jump Performance In Men And Women, Marcel Lopes Dos Santos, Jocarol Shields, Ricardo Berton, Taylor K. Dinyer-Mcneely, Michael Trevino, Olivia Anderson, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 17(1): 720-729, 2024. This study aimed to analyze the effect of box height on box jump performance among recreationally active college students. Fourteen males (age = 20.8 ± 4.1 years, height = 178.3 ± 6.3 cm, weight = 82.3 ± 13.0 kg) and seventeen females (age = 20.8 ± 2.1 years, height = 167.1 ± 5.5 cm, weight = 64.5 ± 7.4 kg) completed box jumps at five different box heights that corresponded to 0, 20, 40, 60, and 80% of their maximal box jump height. Variables of interest included peak force, rate of force …

The Influence Of Strength And Power Training On The Performance Of U.S. Marines, Kristopher J. Klein

Master of Science in Kinesiology

U.S. Marine Infantry conducts a job that requires strength, speed, and endurance; however military fitness training relies mainly on the endurance aspect. With numerous studies showing the correlation between an endurance mainstay within military organizations, and musculoskeletal and joint overuse injuries, this study seeks to understand the performance value in training the anaerobic energy systems. Specifically, we aim to determine whether strength and power training may be more beneficial to the tactical athlete than traditional training. Over a period of 12 weeks, 150 members of the U.S. Marine Infantry will participate in training five days a week with three days …

Correlation Between Lower-Body Strength And Performance Tests Among Female Ncaa Division Ii Softball Players, Elizabeth L. Alfaro, Jocarol Shields, Javier Zaragoza, Marcel Lopes Dos Santos, J. Jay Dawes, Doug Smith

Faculty Publications - Kinesiology and Recreation

Softball is a sport that requires speed, agility, and lower-body power to be successful. Accordingly, strength and conditioning programs have focused on improving speed and lower-body power, which are beneficial to players performing softball-related tasks. The purpose of this study was to determine the correlation between absolute and relative lower-body strength to performance measures among female collegiate softball players. Archived data collected during pre-season performance testing for twenty-one (n = 21) NCAA Division II collegiate softball players was used for this analysis. Measurements included countermovement jump (CMJ), broad jump (BJ), linear speed (LS), 505 test for change of direction …

Braking And Propulsion Phase Characteristics Of Traditional And Accentuated Eccentric Loaded Back Squats, Timothy J. Suchomel, Conor J. Cantwell, Brookelyn A. Campbell, Zach S. Schroeder, Lauren K. Marshall, Christopher Taber

Exercise Science Faculty Publications

The purpose of this study was to examine the differences in braking and propulsion force-time characteristics and barbell velocity between traditional (TRAD) and accentuated eccentric loaded (AEL) back squats using various load combinations. Sixteen resistance-trained men participated in four separate testing sessions which included a one repetition maximum (1RM) back squat during the first session and three squat testing sessions. During the squat testing sessions, participants either performed sets of three repetitions of TRAD back squats each with 50, 60, 70, and 80% 1RM or performed the same loads with the addition of weight releasers that increased the total eccentric …

Improving Leg Power And Dolyo Chagi Kick Speed In Taekwondo Using Plyometric, Saq, And Circuit Training Methods, Muhammad Kharis Fajar, Afif Rusdiawan, Muhammad Labib Siena Ar Rasyid

Jurnal Keolahragaan

This study aimed to determine the effect of giving three different exercise methods (Plyometric, SAQ, and Traning Circuit) on increasing leg muscle power and dolyo chagi kick speed in taekwondo athletes. The research design used pre and post design with a total of 18 Unesa student taekwondo athletes as research subjects. The subjects were divided into three groups (PLY, SAQ, and ST) consisting of 6 athletes each. The PLY group performs plyometric; The SAQ group performs Speed, Agility, and Quickness; and the ST Group performs circuit training. Interventions were given to each group with 18 meetings with a frequency of …

Developing An Exercise Program To Improve The Biomotor Abilities Of Wushu Taolu Athletes As A Support For The Teng Kong Bai Lian (Tkbl) Movement, Kamilia Lituhayu, Ahmad Nasrulloh, Rina Yuniana, Roxana Dev Omar Dev

Jurnal Keolahragaan

The aim of this study was: (1) to develop an appropriate circuit training program for biomotor improvement that supports Teng Kong Bai Lian (TKBL), (2) to examine the feasibility of biomotor improvement that supports TKBL, and (3) to examine training program effectivity. This study is a kind of Research and Development through several procedures, such as observation and data collection, planning, program development, expert validation, initial program revision, small scale trial, large scale trial, operational program revision, effectivity test, and completion program, and training program implementation. Instrument of this study consist of observation, questionnaire for expert validation, test and measurement …

Two Different Approaches To Dry-Land Training Do Not Improve The Water Performance Of Swimmers, Matheus Silva Norberto, Carlos Augusto Kalva-Filho, Guilherme Navarro Schneider, Eduardo Zapaterra Campos, Marcelo Papoti

International Journal of Exercise Science

International Journal of Exercise Science 16(6): 770-790, 2023. Literature diverges about the performance improvement after dry-land training. Thus, the objective of the present study was to compare the effect of two models of dry-land training. Twenty-nine swimmers were divided into three groups, combined strength and power training (PTG), only strength training (STG), and a control group (CG). Measurements were taken for six weeks, before dry-land exposure (M1), after four weeks of specific training with exposure to dry-land training by two groups (M2), and after two weeks of taper without exposure to dry-land training (M3). Strength in specific exercises, jumping tests, …

The Effect Of Joint Versus Soft Tissue Flossing On Overall Performance In The Lower Extremities, Emily Bray

Graduate Dissertations and Theses

Effective warm-up routines result in a reduction in muscle soreness post-exercise, a lessened risk of injury, and an enhanced performance output ability. Existing research has shown promising effects of muscle tissue flossing, a novel method of warming up in which a latex band is used to apply pressure to a specific area in the body. The purpose of this study was to determine how active college students respond to flossing applied to both a joint as well as soft tissue in the lower extremities, focusing on the ankle joint and calf muscle. Floss bands were applied bilaterally for each of …

The Effect Of Joint Versus Soft Tissue Flossing On Overall Performance In The Lower Extremities, Emily Bray

Undergraduate Theses and Capstone Projects

Effective warm-up routines result in a reduction in muscle soreness post-exercise, a lessened risk of injury, and an enhanced performance output ability. Existing research has shown promising effects of muscle tissue flossing, a novel method of warming up in which a latex band is used to apply pressure to a specific area in the body. The purpose of this study was to determine how active college students respond to flossing applied to both a joint as well as soft tissue in the lower extremities, focusing on the ankle joint and calf muscle. Floss bands were applied bilaterally for each of …

Longitudinal Sport Science Implementation In American Collegiate Men’S Basketball, Jason Stone

Graduate Theses, Dissertations, and Problem Reports (ETD)

The expanding opportunities to implement sport science frameworks in elite-level basketball environments coincide with the sport’s increasing global prominence. Concomitant to these opportunities is the continual growth of the sport technology market (e.g., wearables, force plates) and computational power (e.g., data management tools, coding capabilities), which yields solutions and challenges for both athletes and practitioners. Due to the rapid influx of new sport technologies in high performance environments, particularly American Collegiate Men’s Basketball, more formal and ecologically valid research on how to effectively utilize data derived from them, particularly over long periods of time (i.e., multiple seasons) is needed. To …

Effect Of Real-Time Feedback On Power Output Using A Novel Smart-Resisted Sled Push, Phillip Goldman, Bilal Pandit, David Gomez, Stevin Lu, Cade Mills, Nick Kull, Richard Ku, Adrian Aramie, Alex Kim, Anka Alexdandru, Jonathan Hu, Eric Neufeld, Brett Dolezal

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 1578-1586, 2022. Prior studies have demonstrated the beneficial effects of real-time data feedback (RTF) on athletic performance and motivation. Despite this evidence, the lack of practical means to implement RTF has hindered its widespread adoption. Recently, a smart-resisted sled push was developed to improve athletic power by utilizing electromagnetic motors as a resistance mechanism, coupled with an RTF display. Thirty healthy college-aged male football players were recruited in this randomized, crossover designed study to examine the efficacy of the RTF to improve power output. Participants were randomized into either group 1 (receiving RTF first …

Exploring Predictive Ability Of Fitness Test Data Relative To Fire Academy Graduation In Trainees: Practical Applications For Physical Training, Robert G. Lockie, Robin (Rob) Marc Orr, Fernando Montes, Tomas Ruvalcaba, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 15(4): 1274-1294, 2022. This study investigated the predictive abilities of fitness tests relative to academy graduation in firefighter trainees. Archival fitness test data from 305 trainees were analyzed, including: Illinois agility test (IAT); push-ups; pull-ups; leg tucks; multistage fitness test; 4.54-kg backwards overhead medicine ball throw (BOMBT); 10-repetition maximum deadlift; and a 91.44-m farmers carry with 18-kg kettlebells. Within the department, trainees were allocated points for each test. Trainees were split into graduated (245 males, 16 females) or released (29 males, 15 females) groups. Independent samples t-tests and effect sizes calculated between-group fitness test differences …

The Effect Of One Night Of Sleep Fragmentation On Aerobic Exercise Performance, Tara L. Thompson

Senior Honors Projects, 2020-current

Purpose: People can experience sleep fragmentation for many reasons. The negative effect this has on a person’s daytime function and sleepiness has already been studied extensively, yet there is little on the effect it has on a person’s aerobic athletic performance. Many athletes experience frequent wake-ups in the middle of the night, due to nerves and other factors, which could potentially affect their performance.

Methods: For each of the eight subjects, testing began with a VO2max test and a familiarization trial. Following this, subject’s then participated in two experimental trials, where they were randomly assigned either a night of sleep …

The Development Of A Novel Throwing Assessment For Children With Cerebral Palsy, Cory Cribb

College of Graduate Studies: Theses & Dissertations

Introduction: Cerebral palsy is one of childhood's most common developmental disabilities. Cerebral palsy leads to dysfunction in the upper extremities due to symptoms such as low muscle power, spasticity, and increased tone. A modified throwing assessment was constructed to examine throwing performance as a measure of upper extremity function. Purpose: To determine if the modified throwing assessment is a reliable measure of throwing performance and if the modified throwing assessment is a valid measure of upper extremity power in children with CP. Methods: The study employed a test-retest design aimed at determining the reliability of a modified throwing assessment. Seven …

Application Of Accentuated Eccentric Loading To Elicit Acute And Chronic Velocity And Power Improvements: A Narrative Review, Justin Merrigan, Jonathon Borth, Christopher B. Taber, Timothy J. Suchomel, Margaret Jones

Exercise Science Faculty Publications

No abstract provided.

The Influence Of Relaxing And Self-Selected Stimulating Music On Vertical Jump Performance In Male Volleyball Players, Simon Gavanda, T. J. Hosang, S. Wagener, N Sönmez, I. Kayser, A. J. Knicker

International Journal of Exercise Science

International Journal of Exercise Science 15(6): 15-24, 2022. Most research concerning the effects of music on physical performance was conducted using endurance parameters. This study investigated the effects of relaxing (RLX) vs. self-selected stimulating music (SM) vs. no music (NM) on jump height (JH), jump power (PWR), and average rest period between jumps (RP) in 13 athletes (age: 25.5 ± 2.6 years). After a warm-up and listening to music (1 min) or NM, participants completed five squat jumps on a force plate. Psychological ratings of mood were assessed using a questionnaire before warm-up and after jumping. A one-way ANOVA was …

Physical Performance Assessments Of Strength And Power In Women Collegiate Athletes, Brian Guthrie, Jennifer B. Fields, Brian Thompson, Margaret T. Jones

International Journal of Exercise Science

International Journal of Exercise Science 14(6): 984-993, 2021. Limited research exists on physical performance assessments for women collegiate athletes. The current cross-sectional study compared field-based tests of muscular strength and power and investigated their relationship. Sports included field hockey, volleyball, soccer, and softball. Tests of one repetition maximum (1-RM) back squat, 1-RM bench press, vertical jump, and standing long jump were administered. A one-way analysis of variance (ANOVA) assessed differences across sports. Bivariate Pearson correlation coefficients examined relationships among tests. It was hypothesized sports with a higher anaerobic nature (volleyball, softball) would outperform those with higher aerobic nature (field hockey, …

Isometric Versus Isotonic Contractions: Sex Differences In The Fatigability And Recovery Of Isometric Strength And High-Velocity Contractile Parameters, Phuong L. Ha, Benjamin E. Dalton, Michaela G. Alesi, Tyler M. Smith, Trisha Vandusseldorp, Yuri Feito, Garrett Hester

Faculty Articles

The purpose of this study was to investigate potential sex differences in the fatigue- and recovery-induced responses of isometric strength and power, as well as select dynamic contractile parameters after isometric and isotonic plantar flexor (PF) contractions. Healthy males (n = 12; age = 21.8 ± 2.2 years) and females (n = 14; age = 21.4 ± 2.5 years) performed a 2-min maximal voluntary isometric contraction and 120 concentric isotonic (30% peak isometric torque) contractions of the PFs on separate visits. Isometric strength, isotonic power, as well as torque- and velocity-related parameters were recorded before, immediately after, and throughout 10 …

Acute Beet Juice Supplementation Does Not Improve 30- Or 60-Second Maximal Intensity Performance In Anaerobically Trained Athletes, Scott A. Conger, Clare M. Zamzow, Matthew E. Darnell

International Journal of Exercise Science

International Journal of Exercise Science 14(2): 60-75, 2021. Research suggests that beet juice is beneficial during aerobic exercise. However, the impact of beet juice during primarily anaerobic exercise is equivocal. The purpose of this study was to determine the effects of acute beet juice supplementation on maximal intensity performance during 30-s and 60-s maximal-intensity cycling sprints. Using a double-blind, crossover-study design, 14 anaerobically trained male hockey players completed six Wingate cycling tests: familiarization trials of a 30-s and 60-s Wingate test, followed by 30-s Wingate placebo/beet juice trials, and 60-s Wingate placebo/beet juice trials. Repeated measures ANOVAs were used to …

The Impact Of External Loads Carried By Police Officers On Vertical Jump Performance, Amy Wiley, Aaron Joseph, Robin Marc Orr, Ben Schram, Charles Kornhauser, Ryan J. Holmes, J. Jay Dawes

International Journal of Exercise Science

International Journal of Exercise Science 13(6): 1179-1189, 2020. The purpose of this study was to examine the impact that external loads have on vertical jump height and peak anaerobic power output (PAPw) of police officers during a vertical jump (VJ) test. Retrospective data of 47 (mean age 38.79 ± 7.97 years) police officers from a US Law Enforcement Agency (LEA) were used for analysis. VJ heights and body mass were used in the Sayers Peak Power Equation to calculate PAPw. Power-to-weight (P:W) ratios were then calculated by dividing PAPw by the officer’s body mass. VJ height significantly (p < .001) decreased with load (unloaded = 49.49 ± 8.46 cm: loaded = 43.62 ± 7.68 cm). A Pearson’s correlation showed a significant (p …