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Full-Text Articles in Sports Sciences

Limits Of Post-Activation Performance Enhancement: Asymmetry Persists Despite Performance Gains, Talia Thompson, Monique Mokha May 2026

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 …


Changes In 25(Oh)D Concentration, Bone Resorption Markers And Physical Performance Due To Sun Exposure, Diet And Training Load Among Professional Women Handball Players During The Half-Year Training Season, Sorin Dacian Buhas, Zbigniew Jastrzębski, Paul Florian Dragos, Marius Alin Marinau, Maria Skalska, Mirela Stef, Joanna Jastrzębska, Mihai Sandra, Dana Ioana Cristea Apr 2026

Changes In 25(Oh)D Concentration, Bone Resorption Markers And Physical Performance Due To Sun Exposure, Diet And Training Load Among Professional Women Handball Players During The Half-Year Training Season, Sorin Dacian Buhas, Zbigniew Jastrzębski, Paul Florian Dragos, Marius Alin Marinau, Maria Skalska, Mirela Stef, Joanna Jastrzębska, Mihai Sandra, Dana Ioana Cristea

Baltic Journal of Health and Physical Activity

Background: The aim of the study was to demonstrate changes in 25(OH)D concentration, bone resorption indicators and physical fitness in female handball players as a result of their exposure to the sun, diet and exercise load during the six-month training period from mid-March to mid-September, i.e. the time when the sun exposure is the highest during the calendar year. Twenty-two women handball players participated in the study. Due to the random occurrences and exclusion criteria, 20 players completed the project. Biochemical analysis of blood, aerobic capacity, running speed and power tests (Wingate test, squat jump, counter movement jump, etc.) was …


Physical And Physiological Profiles Of Competitive Fencers: A Systematic Review And Meta-Analysis Of Strength, Power, Endurance, Agility And Asymmetry, Joanna Motowidło, Miłosz Drozd, Petr Stastny, Dariusz T. Skalski, Izabella Socha, Adam Maszczyk Mar 2026

Physical And Physiological Profiles Of Competitive Fencers: A Systematic Review And Meta-Analysis Of Strength, Power, Endurance, Agility And Asymmetry, Joanna Motowidło, Miłosz Drozd, Petr Stastny, Dariusz T. Skalski, Izabella Socha, Adam Maszczyk

Baltic Journal of Health and Physical Activity

Background: Evidence on lower-limb strength, explosive power and bilateral asymmetry in competitive fencing is fragmented, and the relative impact of general neuromuscular capacity versus targeted training interventions remains unclear. The aim of this systematic review and meta-analysis is to provide a multidimensional, evidence-based synthesis of data on strength, power, and bilateral asymmetry of the lower limbs in professional fencers. Materials and methods: Following PRISMA 2020 (PROSPERO CRD420251041007), six databases were searched by 31 January 2025. Forty studies of fencers aged ≥ 12 years met the inclusion criteria. Three domain-specific random-effects meta-analyses (DerSimonian–Laird) were conducted: (1) integrated strength and power across …


Lat Pulldown Load Velocity Profiling In Upper-Body Dominant Athletes: A Preliminary Report, Darian B. Hastings, Benjamin P. Doyle, John D. Tebbetts, Bryan B. Crutcher, J Bryan Mann Feb 2026

Lat Pulldown Load Velocity Profiling In Upper-Body Dominant Athletes: A Preliminary Report, Darian B. Hastings, Benjamin P. Doyle, John D. Tebbetts, Bryan B. Crutcher, J Bryan Mann

International Journal of Exercise Science: Conference Proceedings

The lat pulldown (LPD) is a common strength exercise aimed to improve maximal strength and power of the latissimus dorsi, the primary agonist muscle for vertical pulling patterns common in sports such as swimming and sport climbing. There is limited research supporting the use of load velocity profiling of the LPD exercise for determining maximal vertical pulling power in upper-body dominant athletes and using these profiles to predict sport-specific performance capabilities. PURPOSE: The purpose of this study was to validate the use of load velocity profiling of the LPD exercise as a predictive measure of vertical pulling power in upper-body …


Effect Of Menstrual Cycle On Lower-Body Power Output In Active College-Aged Women, Peyton Schmidt, Taylor Vannett, Erika Short Feb 2026

Effect Of Menstrual Cycle On Lower-Body Power Output In Active College-Aged Women, Peyton Schmidt, Taylor Vannett, Erika Short

International Journal of Exercise Science: Conference Proceedings

The menstrual cycle is a normal physiological process that may influence physical and psychological performance in women. Many women report feeling less powerful during their menstrual cycle, which may affect athletic performance.  PURPOSE: The purpose of this study was to determine whether the menstrual cycle affects lower-body power output in active college-aged women.  METHODS: Twenty active women (18–25 years; M = 20.35 ± 1.98) participated in this study. All participants experienced regular menstrual cycles and were recreationally active or competitive athletes. Testing was conducted in the Texas Lutheran University Kinesiology Lab using a Biodex Dynamometer. After signing an informed consent, …


Dietary Nitrate Supplementation Worsens Resistance Exercise Performance In Resistance-Trained Females, Sydney N. Brennan, Raymond T. Gerardo, Trevor J. Molnar, Justin M. Foster, Ryan Tran, Kyle S. Geppert, Christopher B. Sottile, Michael Egiazarian, Abigail F. Ballhagen, Stewart D. Gonzalez, Adam Pennell, Rachel Tan Jan 2026

Dietary Nitrate Supplementation Worsens Resistance Exercise Performance In Resistance-Trained Females, Sydney N. Brennan, Raymond T. Gerardo, Trevor J. Molnar, Justin M. Foster, Ryan Tran, Kyle S. Geppert, Christopher B. Sottile, Michael Egiazarian, Abigail F. Ballhagen, Stewart D. Gonzalez, Adam Pennell, Rachel Tan

International Journal of Exercise Science: Conference Proceedings

Dietary nitrate supplementation appears to preferentially target type II muscle fibers for beneficial effects; however, research examining the efficacy of nitrate in females and resistance exercise is scarce. PURPOSE: To investigate if dietary nitrate, provided as concentrated nitrate-rich beetroot juice (BR), improved resistance exercise performance in back squat and bench press compared to nitrate-depleted beetroot juice (PL) in resistance-trained females. METHODS: Eighteen resistance-trained females aged reported to the lab for a total of four visits over a 2-week period. Participants performed a one repetition maximum protocol (1RM) and familiarization to the experimental protocol, and were assigned in a randomized, double-blind …


Effects Of Acute And Multi-Day Beetroot Juice Supplementation On Power And Velocity Of Ncaa Division I Baseball Players, Justin M. Foster, Raymond T. Gerardo, Sydney N. Brennan, Trevor J. Molnar, Ryan Tran, Kyle S. Geppert, Christopher B. Sottile, Michael Egiazarian, Abigail F. Ballhagen, Stewart D. Gonzalez, Adam Pennell, Rachel Tan Jan 2026

Effects Of Acute And Multi-Day Beetroot Juice Supplementation On Power And Velocity Of Ncaa Division I Baseball Players, Justin M. Foster, Raymond T. Gerardo, Sydney N. Brennan, Trevor J. Molnar, Ryan Tran, Kyle S. Geppert, Christopher B. Sottile, Michael Egiazarian, Abigail F. Ballhagen, Stewart D. Gonzalez, Adam Pennell, Rachel Tan

International Journal of Exercise Science: Conference Proceedings

Dietary nitrate supplementation can enhance power via modulating type II muscle fiber contractility; however, no study has examined the ergogenic potential of nitrate in elite level power-based athletes that heavily rely on type II muscle fiber activation such as baseball players. Moreover, there are no nitrate dosing guidelines available for elite level athletes. PURPOSE: To investigate if acute and multi-day nitrate supplementation influences power and velocity during barbell back squat and barbell bench press in elite level baseball players. METHODS: Eighteen male collegiate baseball athletes (NCAA Division I) reported to the laboratory for 6 visits over ~8 weeks, and were …


Dietary Nitrate Supplementation Worsens Resistance Exercise Performance In Resistance-Trained Females, Sydney N. Brennan, Raymond T. Gerardo, Trevor J. Molnar, Justin M. Foster, Ryan Tran, Kyle S. Geppert, Christopher B. Sottile, Michael Egiazarian, Abigail F. Ballhagen, Stewart D. Gonzalez, Adam Pennell, Rachel Tan Jan 2026

Dietary Nitrate Supplementation Worsens Resistance Exercise Performance In Resistance-Trained Females, Sydney N. Brennan, Raymond T. Gerardo, Trevor J. Molnar, Justin M. Foster, Ryan Tran, Kyle S. Geppert, Christopher B. Sottile, Michael Egiazarian, Abigail F. Ballhagen, Stewart D. Gonzalez, Adam Pennell, Rachel Tan

International Journal of Exercise Science: Conference Proceedings

Dietary nitrate supplementation appears to preferentially target type II muscle fibers for beneficial effects; however, research examining the efficacy of nitrate in females and resistance exercise is scarce. PURPOSE: To investigate if dietary nitrate, provided as concentrated nitrate-rich beetroot juice (BR), improved resistance exercise performance in back squat and bench press compared to nitrate-depleted beetroot juice (PL) in resistance-trained females. METHODS: Eighteen resistance-trained females aged reported to the lab for a total of four visits over a 2-week period. Participants performed a one repetition maximum protocol (1RM) and familiarization to the experimental protocol, and were assigned in a randomized, double-blind …


Acute And Chronic Dietary Nitrate Supplementation On Resistance Exercise Performance In Healthy Resistance-Trained Adults., Trevor J. Molnar, Sydney N. Brennan, Justin M. Foster, Ryan Tran, Raymond T. Gerardo, Kyle S. Geppert, Christopher B. Sottile, Michael Egiazarian, Abigail F. Ballhagen, Stewart D. Gonzalez, Adam Pennell, Rachel Tan Jan 2026

Acute And Chronic Dietary Nitrate Supplementation On Resistance Exercise Performance In Healthy Resistance-Trained Adults., Trevor J. Molnar, Sydney N. Brennan, Justin M. Foster, Ryan Tran, Raymond T. Gerardo, Kyle S. Geppert, Christopher B. Sottile, Michael Egiazarian, Abigail F. Ballhagen, Stewart D. Gonzalez, Adam Pennell, Rachel Tan

International Journal of Exercise Science: Conference Proceedings

The efficacy of dietary nitrate supplementation for enhancing resistance exercise remains unclear, and nitrate dosing guidelines are relatively unexplored. PURPOSE: To determine whether acute and chronic dietary nitrate supplementation, provided in the form of nitrate-rich beetroot juice (BR), can improve resistance exercise performance in resistance-trained males. METHODS: Thirty-six resistance-trained males and females will be recruited. Participants will complete a standardized one-repetition maximum (1RM) test in barbell back squat and barbell bench press and a familiarization prior to experimental visits. In a randomized, double-blind, controlled, fashion, participants will complete two conditions of 14-day supplementation periods to consume: (1) nitrate-depleted beetroot juice …


Using Lower Body Power To Predict Upper Body Bone Strength In Thalassemia Patients, Emily J. Van Horn Jan 2026

Using Lower Body Power To Predict Upper Body Bone Strength In Thalassemia Patients, Emily J. Van Horn

International Journal of Exercise Science: Conference Proceedings

Thalassemia is a disease that reduces the body’s ability to produce hemoglobin. Thalassemia patients experience fatigue and avoid physical activity leading to low bone mass. Studies have reported that peak vertical jump power at take off calculated from a standing vertical jump (PPVJ) predicts tibial bone strength (TBS) including strain index (SSI) and cortical area (Ct.Ar.) (r=.69-.78) (Janz, 2015; Yingling, 2018 & 2020). Bone adaptation in response to mechanical loading is site specific. However, there is data that suggests peak power also predicts radial bone strength (RBS) (Yingling, 2021). Power has also been measured using a sit to stand power …


Exercise Intervention On Young-Adult Thalassemia Patients A Case Study, Viviana N. Preciado, Vanessa Yingling Phd, Ellen Fung Phd, Jennifer Sherwood Phd Jan 2026

Exercise Intervention On Young-Adult Thalassemia Patients A Case Study, Viviana N. Preciado, Vanessa Yingling Phd, Ellen Fung Phd, Jennifer Sherwood Phd

International Journal of Exercise Science: Conference Proceedings

Thalassemia is a hereditary hemoglobin synthesis disorder that reduces oxygen delivery to the tissues, resulting in extreme fatigue, so that individuals live very sedentary lifestyles. Exercise is essential to improve muscle strength, cardiovascular endurance, and the ability to perform daily tasks. PURPOSE: This case study was designed to assess the effects of a 12-week home based intervention of daily aerobic and strength training exercise to improve body composition and muscle function in Thalassemia patients. METHODS: Male subjects, ages 15-40 yrs, (n=3) participating in a 12-week exercise intervention, were asked to engage in 30 minutes of aerobic exercise 3 days/week and …


Assessment Of Countermovement Jump In Athlete Status And Monitoring, Michael David Delong Jan 2026

Assessment Of Countermovement Jump In Athlete Status And Monitoring, Michael David Delong

Graduate Theses, Dissertations, and Problem Reports (ETD)

Utilizing a CMJ to test athlete physical abilities and training program efficacy is popular, as it is simple, noninvasive, and has significant relations with sport qualities. However, assessments often use discrete outcome measures. This research explored strategy-based measures accounting for eccentric power and time and may explain athlete status more effectively. The research objectives are to analyze the use of the mean power rate of the CMJ to compare athletes' playing ability and its usefulness in monitoring during off-season training. Additionally, power-time curve analysis added location and timing of effects due to fatigue or fitness adaptation. Proper testing and monitoring …


The Effects Of Grounding Techniques On Strength And Power In Division Ii Track And Field Athletes: A Pre/Post Cohort Study, Matthew Ronald Hall Dec 2025

The Effects Of Grounding Techniques On Strength And Power In Division Ii Track And Field Athletes: A Pre/Post Cohort Study, Matthew Ronald Hall

Doctoral Dissertations and Projects

Grounding is the practice of connecting the human body to the Earth’s electrical surface. It has been proposed as a natural intervention capable of reducing inflammation, enhancing recovery, and improving physiological balance. While previous research has identified benefits for general health and recovery, limited evidence exists regarding its effects on athletic performance. This study investigated the effects of grounding interventions on strength and power among Division II track and field athletes. A five-week, pre/post randomized prospective cohort design was employed with thirty participants, stratified for men and women, which included three groups: grounding sheets, grounding pads, control. Athletes were assessed …


Performance In Multi-Joint Force-Plate Assessments In Male And Female Crossfit® Athletes, James R. Jowsey, G. Gregory Haff, Paul Comfort, Nicholas Joel Ripley Jun 2025

Performance In Multi-Joint Force-Plate Assessments In Male And Female Crossfit® Athletes, James R. Jowsey, G. Gregory Haff, Paul Comfort, Nicholas Joel Ripley

Research outputs 2022 to 2026

Background: CrossFit® aims to be equitable between both males and female athletes, supporting equal representation and equal prize money at international events. However, to date, limited information is known on CrossFit® athletes’ performance in the countermovement jump (CMJ), countermovement rebound jump (CMR-J), and isometric mid-thigh pull (IMTP) when assessed using force plates, and if there are any differences between sexes. Therefore, the purpose of the present study was to observe whether any sex-based differences and relationships exist between performance within these assessments. Methods: A total of CrossFit athletes (43 male = 32.8 ± 9.0 years; height 1.78 ± …


Effects On Force, Velocity, Power, And Muscle Activation Of Resistances With Variable Inertia Generated By Programmable Electromechanical Motors During Explosive Chest Press Exercises, Luca Zoffoli, Silvano Zanuso, Andrea Biscarini Mar 2025

Effects On Force, Velocity, Power, And Muscle Activation Of Resistances With Variable Inertia Generated By Programmable Electromechanical Motors During Explosive Chest Press Exercises, Luca Zoffoli, Silvano Zanuso, Andrea Biscarini

Research outputs 2022 to 2026

Strength training machines incorporating advanced electro-mechanical technologies can produce hybrid resistances with variable inertia, such as a resistance that progressively changes from gravitational (inertial) to pneumatic (non-inertial) across the range of motion (ROM). To explore the biomechanical effects of these innovative resistances, a robotic chest press machine was programmed to offer three distinct inertial profiles: gravitational-type constant inertia throughout the ROM (IFULL); no inertia (IZERO); and linearly descending inertia across the ROM (IVAR). Ten healthy adults performed five maximal-effort, explosive chest press movements under each inertial profile at 30, 50 and 70% of their one-repetition maximum. During each trial, muscle …


The Comparison Of Time To Peak Rapid Force Production In Division One Collegiate Male Football, Track, And Basketball Players, Anthony M. Rogers Jr, Matthew P. Gonzalez, Samuel Montalvo, Sandor Dorgo Feb 2025

The Comparison Of Time To Peak Rapid Force Production In Division One Collegiate Male Football, Track, And Basketball Players, Anthony M. Rogers Jr, Matthew P. Gonzalez, Samuel Montalvo, Sandor Dorgo

International Journal of Exercise Science: Conference Proceedings

Sports such as football (FB), track (TR), and basketball (BB) use movements that require rapid force development in order to be successful. An athlete’s ability to generate power is vital for performance in these sports. While many studies have looked at rapid force development in one sport, there is a paucity of research when comparing athletes across different sports for their time to peak force development. PURPOSE: The purpose of this study was to compare male FB, BB, and TR athletes’ time to peak force and rate of development performance. METHODS: A total of 138 athletes (n=14 BB, n=108 FB, …


Corrected Echo Intensity Is Not Related To Fatigability Or Indices Of Aerobic Fitness In Healthy Young Adults: A Pilot Study, Kase J. Pennartz, Michael R. Perlet, Marek Kerr, Joshua L. Keller Feb 2025

Corrected Echo Intensity Is Not Related To Fatigability Or Indices Of Aerobic Fitness In Healthy Young Adults: A Pilot Study, Kase J. Pennartz, Michael R. Perlet, Marek Kerr, Joshua L. Keller

International Journal of Exercise Science: Conference Proceedings

Muscle quality (MQ), measured via echo intensity, is regularly used to characterize muscle function and disease. Although it has been related to measures of cardiovascular performance, muscle strength, power, and function in elderly populations, these relations are not consistently observed in younger adult populations. Specifically, the relations of MQ and various functional outcomes (e.g., muscle strength, fatigability, and aerobic fitness) remain unclear, particularly given the interplay between age-related changes in fatiguability and performance. PURPOSE: Therefore, the purpose of this study was to examine the relation of MQ among muscle strength, fatigability, and indices of aerobic fitness in young healthy …


Reliability Of Handgrip Strength Measurements And Their Relationship With Physical Performance Outcomes In Older Women, Alexandra Khartabil, Ty B. Palmer Feb 2025

Reliability Of Handgrip Strength Measurements And Their Relationship With Physical Performance Outcomes In Older Women, Alexandra Khartabil, Ty B. Palmer

International Journal of Exercise Science: Conference Proceedings

Handgrip strength measurements, such as peak force and rate of force development (RFD), are effective parameters at characterizing the strength capacities of numerous muscle groups in the upper and lower extremities. Previous studies have determined the reliability of handgrip peak force and RFD in young, college-aged adults. However, the reliability of these measurements in older adults remains unclear. It is also unclear if these measurements are associated with performance during sit-to-stand and medicine ball throw tests. PURPOSE: The primary aim of this study was to examine the reliability of handgrip peak force and RFD measurements in older women. A secondary …


Comparing Physiological, Psychological, And Performance Changes Between Myo-Reps Vs Traditional Hypertrophy Protocols, Antonella V. Schwarz Dec 2024

Comparing Physiological, Psychological, And Performance Changes Between Myo-Reps Vs Traditional Hypertrophy Protocols, Antonella V. Schwarz

Doctoral Dissertations and Projects

In long-term athlete development, it is common to emphasize hypertrophic adaptations during the beginning training phases prior to focusing on strength and power performance. The purpose of this study was to compare the physiological, psychological, and performance differences between myo-reps (MYO) vs. traditional (TRAD) hypertrophy protocols in trained n=8 male subjects over eight weeks. Current literature suggests hypertrophy may be optimized through 3-6 sets of 6-12 repetitions at 60-80% of one-repetition maximum (IRM) with 1-3 minutes of rest per set. However, alternative hypertrophy protocols such as MYO are underexplored. This quantitative experimental study assessed MYO vs TRAD protocols on hypertrophy …


General Sport Skills Performance Following The Combined Use Of Accentuated Eccentric Loading And Cluster Sets During A Strength-Endurance Training Phase, David Nelson Dec 2024

General Sport Skills Performance Following The Combined Use Of Accentuated Eccentric Loading And Cluster Sets During A Strength-Endurance Training Phase, David Nelson

Electronic Theses and Dissertations

The purpose of this study aimed to evaluate the efficacy of resistance training with accentuated eccentric loading (AEL) and cluster sets (CS) versus traditional resistance training (TRAD) on general sports skills and power performance in recreationally trained individuals. Seventeen subjects (11 males, 6 females; mean age 23.2 ± 4.1 years; body mass 81.3 ± 22.2 kg; height 172.1 ± 10.0 cm; relative 1 RM back squat 1.5 ± 0.3) were randomly assigned to AEL (n = 9) or TRAD (n = 8) groups. After an initial familiarization and baseline testing, both groups underwent a four-week strength-endurance training regimen. The AEL …


Sled-Pull Training Decreases Rate Of Force Development In Men And Women Soccer Players, James Ma, John A. Brasher, Robert Musci, Jenevieve L. Roper Nov 2024

Sled-Pull Training Decreases Rate Of Force Development In Men And Women Soccer Players, James Ma, John A. Brasher, Robert Musci, Jenevieve L. Roper

International Journal of Exercise Science: Conference Proceedings

Sled-pull training is a popular training method thought to increase lower extremity strength and power in athletes. Lower extremity strength and power are factors for success in sport, particularly soccer. Asymmetry is thought to negatively impact athletes, by increasing their risk of injury, and should be the focus of any training program. PURPOSE: To determine the impact of a 12-week sled pull training intervention on isometric leg rate of force development (RFD) and RFD asymmetry. METHODS: Thirty men (n = 15; 20 ± 1.5yrs, 168.28 ± 5.17cm, 73.44 ± 3.46kg) and women (n = 15; 19.58 ± 1yr, …


Investigating The Effect Of Fat Bar Attachments On Peak Velocity, Repetitions Until Failure, Energy Expenditure, And Respiratory Quotient In The Bench Pull Exercise, Robert R. Sawyer, Shane Draper, Anthony Ciccone, Tyler Standifird, Nicolas Clark Nov 2024

Investigating The Effect Of Fat Bar Attachments On Peak Velocity, Repetitions Until Failure, Energy Expenditure, And Respiratory Quotient In The Bench Pull Exercise, Robert R. Sawyer, Shane Draper, Anthony Ciccone, Tyler Standifird, Nicolas Clark

International Journal of Exercise Science: Conference Proceedings

New methods of training in resistance exercise include the use of thick or “fat” bar attachments to promote forearm and grip strength. No study has investigated how these tools affect both acute biomechanical and physiological factors of barbell exercise. PURPOSE: Investigate the effect of using a thick barbell attachment (5.72 cm diameter) on peak velocity, repetitions until failure, total energy expenditure, and respiratory quotient during the bench pull exercise performed at 60% 1RM. METHODS: Six healthy resistance-trained college-aged men underwent three visits. First visit was used to calculate one-rep max (1RM) through force-velocity profiling. Second and third visits were randomized …


Effects Of Dietary Nitrate Supplementation On High-Intensity Cycling Sprint Performance In Recreationally Active Adults: A Systematic Review And Meta-Analysis, Rachel Tan, Jordan K. Cass, Isabella G. Lincoln, Lauren E. Wideen, Madelyn J. Nicholl, Trevor J. Molnar, Lewis A. Gough, Stephen J. Bailey, Adam Pennell Aug 2024

Effects Of Dietary Nitrate Supplementation On High-Intensity Cycling Sprint Performance In Recreationally Active Adults: A Systematic Review And Meta-Analysis, Rachel Tan, Jordan K. Cass, Isabella G. Lincoln, Lauren E. Wideen, Madelyn J. Nicholl, Trevor J. Molnar, Lewis A. Gough, Stephen J. Bailey, Adam Pennell

All Faculty Open Access Publications

This systematic review and meta-analysis investigated the influence of dietary nitrate supplementation on performance metrics during cycling sprint exercise according to the PRISMA guidelines. Searches were conducted on MEDLINE, PubMed, ScienceDirect, Scopus, and SPORTDiscus databases up to September 2023. Inclusion criteria were healthy recreationally active men and women who consumed nitrate-rich and nitrate-deficient beetroot juice to assess performance outcomes of mean power, peak power, time-to-peak power, and minimum power during 30-s cycling sprints. Risk of bias was assessed using the Cochrane Risk of Bias 2 and TESTEX tools and funnel plots. A random effects model was performed on six studies …


Responsiveness Of The Sit-To-Stand Test To Measure Lower Body Power, Jose Antonio Tan Apr 2024

Responsiveness Of The Sit-To-Stand Test To Measure Lower Body Power, Jose Antonio Tan

International Journal of Exercise Science: Conference Proceedings

Muscle power declines at a faster rate and demonstrates a stronger association with physical function than strength, emphasizing the growing importance of assessing muscle power. The Sit-to-Stand (STS) test is a novel test to measure lower body power that is valid and reliable, while also being portable and affordable. However, its responsiveness to change or longitudinal validity is unknown. PURPOSE: To examine the responsiveness to change of the Sit-to-Stand test in comparison to the pneumatic leg press in measuring lower body power. METHOD: 23 community-living adults, aged 50-80, were recruited. Participants underwent a full body strength training workout twice a …


The Effects Of Liftng Belts On Power Output, Julio Aguilar, Benjamin Coldwell, Patrick Jackson, Cade Pippen, Zane Thornton Jan 2024

The Effects Of Liftng Belts On Power Output, Julio Aguilar, Benjamin Coldwell, Patrick Jackson, Cade Pippen, Zane Thornton

International Journal of Exercise Science: Conference Proceedings

JULIO AGUILAR, BENJAMIN COLDWELL, PATRICK JACKSON, CADE PIPPEN, ZANE THORTON.

Kinesiology & Health Science; Stephen F. Austin State University; Nacogdoches, TX

Category: Undergraduate

Advisor: Chelette, Amber, [email protected]

Lifting belts, when lifting heavy weights, are purportedly used to support, stabilize, and attenuate the load on the spine. With the additional support, potential questions arise about whether weightlifting belts affect the power performed when squatting. This study aimed to examine the power produced during a squat with a weightlifting belt compared to a squat performed without one. Ten subjects, five male and five female, performed squats of two sets of 3 repetitions, …


The Effectiveness Of Running Power As A Metric Of Exercise Intensity During Running Interval Training, Eric A. Lambert, Dustin W. Davis, Matahn Blank, Tashari A. Carballo, Elias M. Malek, Kathryn Lei A. Lavin, Thea Sweder, Nicole Argueta, Marcus M. Lawrence, James W. Navalta, Jeffrey Cowley Nov 2023

The Effectiveness Of Running Power As A Metric Of Exercise Intensity During Running Interval Training, Eric A. Lambert, Dustin W. Davis, Matahn Blank, Tashari A. Carballo, Elias M. Malek, Kathryn Lei A. Lavin, Thea Sweder, Nicole Argueta, Marcus M. Lawrence, James W. Navalta, Jeffrey Cowley

International Journal of Exercise Science: Conference Proceedings

Wearable power meters are increasingly popular among runners with Coros and Stryd offering running power as a real-time, trackable of a metric. PURPOSE: This study compared running power (RP) to physiological measures, heart rate (HR) and oxygen consumption (VO2), across high and low intensity running intervals. METHODS: Thirteen adult participants (n = 6 male; height = 174.9 ± 6.9 cm; mass = 72.5 ± 12.0 kg) were equipped with a Stryd 27 RP meter, a Polar H10 HR monitor, and a Cosmed K5 portable metabolic unit. Participants’ self-selected RP was obtained during a 10-min run on …


Impacts Of Creatine Supplementation On Running Anaerobic Sprint Performance Test (Rast) Power And Velocity In Youth Soccer Players, Nia Howard, Citlaly Jauregui, Heitor P N Amorim, Sullen B. Sant'ana, Juan Mielgo Ayuso, Dailson Paulucio, Marco Machado, Steven B. Machek Nov 2023

Impacts Of Creatine Supplementation On Running Anaerobic Sprint Performance Test (Rast) Power And Velocity In Youth Soccer Players, Nia Howard, Citlaly Jauregui, Heitor P N Amorim, Sullen B. Sant'ana, Juan Mielgo Ayuso, Dailson Paulucio, Marco Machado, Steven B. Machek

International Journal of Exercise Science: Conference Proceedings

Creatine supplementation commonly enhances short-term, high-intensity effort performance such the soccer-specific ability to perform repeated sprints. Research in this regard is both generally sparse but specifically more so in youth athletes. PURPOSE: to determine the effect of 28 days of creatine monohydrate supplementation on running anaerobic sprint performance (RAST) power and velocity in youth soccer players. METHODS: Sixteen male youth soccer players were randomized in double-blinded, parallel-group fashion to either 28 days of creatine supplementation (CRE; 15.9±0.35y) or an equivalently-dosed dextrose (PLA; 15.5±0.54y; 0.3g/kg/d loading dose for the first seven days, followed by 0.03g/kg/d for the remaining period), whereby they …


Peak Power Changes During A Countermovement Jump Following Treadmill And Cycling High-Intensity Interval Training, Michael G. Maregne, Juliet Moore, E Todd Schroeder Nov 2023

Peak Power Changes During A Countermovement Jump Following Treadmill And Cycling High-Intensity Interval Training, Michael G. Maregne, Juliet Moore, E Todd Schroeder

International Journal of Exercise Science: Conference Proceedings

Within activities involving jumping, peak power can be a significant factor to consider when assessing an athlete’s overall physical performance. By investigating different modalities of exercise, it is possible to discover potential benefits or flaws in certain workout regimens that may influence jump performance. In turn, this could influence how physical trainers, athletes, and recreationally active people approach their exercise routine to maximize performance. PURPOSE: The purpose of this study was to investigate the changes in peak jump power during a countermovement jump (CMJ) immediately following and 1-hour post high-intensity interval training (HIIT) using high-impact (running) and low-impact (cycling) …


Relationships Between Muscle Characteristics And Step Outcomes In Young And Old Adults, Kareem Abubukker May 2023

Relationships Between Muscle Characteristics And Step Outcomes In Young And Old Adults, Kareem Abubukker

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

Background: Falls are a primary cause of mortality and morbidity in older adults. In an effort to assess falls, a number of studies have measured neurological, biomechanical, and neuromuscular function in relation to fall risk. Despite efforts, falls continue to affect the older adult population leading to subsequent impaired mobility and function. Multiple factors contribute to fall risk among older adults, however, a factor that has shown a consistent relationship with the prevalence of future falls is reduced muscle characteristics. Moreover, the ability to rapidly accelerate a limb, as captured by rate of power development (RPD), rate of velocity development …


Longitudinal Sport Science Implementation In American Collegiate Men’S Basketball, Jason Stone Jan 2023

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 …