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Inter-Rater Reliability Of Manual Waist Circumference And Agreement With Dxa-Derived Waist In Male Collegiate Rugby Players, Hayden Johnson, Christian Rivera, Stephanie Hansford, Regan Renfro, Dalton Prye, Matthew Poole, Saheed Jaiyeola, Sage A. Newman, Adesiji Adetona, Oscar Woodside, Jmya Hughes, Preston James, Kelly Hines, Jade Simon, Drew E. Gonzalez, Christopher D. Greenleaf, Micheil Spillane Feb 2026

Inter-Rater Reliability Of Manual Waist Circumference And Agreement With Dxa-Derived Waist In Male Collegiate Rugby Players, Hayden Johnson, Christian Rivera, Stephanie Hansford, Regan Renfro, Dalton Prye, Matthew Poole, Saheed Jaiyeola, Sage A. Newman, Adesiji Adetona, Oscar Woodside, Jmya Hughes, Preston James, Kelly Hines, Jade Simon, Drew E. Gonzalez, Christopher D. Greenleaf, Micheil Spillane

International Journal of Exercise Science: Conference Proceedings

Waist circumference (WC) is a low-cost surrogate of central adiposity, but measurement error can limit athlete monitoring. PURPOSE: Evaluate inter-rater reliability of manual WC and agreement with dual-energy X-ray absorptiometry (DXA)-derived WC in male collegiate rugby players. METHODS: Twenty-one male collegiate rugby players completed baseline testing (manual WC and DXA completed same day) following an overnight fast and euhydration. Two trained raters independently measured WC on bare skin at the superior border of the iliac crest (site not pre-marked) using a seca 201 measurement tape, with participants standing feet together and arms relaxed at their sides; the tape was verified …

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Associations Between Dxa-Derived Trunk Adiposity And Resting Hemodynamics In Male Collegiate Rugby Union Athletes, Adesiji Adetona, Hayden Johnson, Christian Rivera, Stephanie Hansford, Regan Renfro, Dalton Prye, Matthew Poole, Saheed Jaiyeola, Sage A. Newman, Oscar Woodside, Jmya Hughes, Preston James, Kelly Hines, Jade Simon, Drew E. Gonzalez, Christopher D. Greenleaf, Micheil Spillane Feb 2026

Associations Between Dxa-Derived Trunk Adiposity And Resting Hemodynamics In Male Collegiate Rugby Union Athletes, Adesiji Adetona, Hayden Johnson, Christian Rivera, Stephanie Hansford, Regan Renfro, Dalton Prye, Matthew Poole, Saheed Jaiyeola, Sage A. Newman, Oscar Woodside, Jmya Hughes, Preston James, Kelly Hines, Jade Simon, Drew E. Gonzalez, Christopher D. Greenleaf, Micheil Spillane

International Journal of Exercise Science: Conference Proceedings

Trunk adiposity is a cardiometabolic risk factor that may relate to resting hemodynamics even in young athletic populations. PURPOSE: To examine associations between DXA-derived trunk percent fat and resting heart rate (HR) and blood pressure (BP) in male collegiate rugby union athletes. METHODS: Twenty-one male rugby athletes completed morning testing (06:00–09:00 h) following ≥12 h fast and post-void, with stimulants (including caffeine) restricted ≥12 h and no exercise ≥24 h. Hydration was screened using urine specific gravity (USG; CLINITEK Status+ with Multistix 10 SG) and urine color (clear yellow). Whole-body DXA (Hologic Horizon W; APEX v5.6.1.3 rev 007) provided trunk …

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Effects Of An 8-Week Resistance Training Program On Segmental Lean Mass, Corie N. Smith, Kornkanok Sophonsakulrat, Payton E. Miller, Laura Roden, Avery Prickell, Karley Rayfield, Katherine Adcock, Canyon Massengale, Jessica Jones, Grant Tinsely, Jacob A. Mota Feb 2026

Effects Of An 8-Week Resistance Training Program On Segmental Lean Mass, Corie N. Smith, Kornkanok Sophonsakulrat, Payton E. Miller, Laura Roden, Avery Prickell, Karley Rayfield, Katherine Adcock, Canyon Massengale, Jessica Jones, Grant Tinsely, Jacob A. Mota

International Journal of Exercise Science: Conference Proceedings

Resistance training is a powerful stimulus that is known to induce a myriad of positive effects in humans. A popular result desired by athletes is to increase muscle mass. However, the existing literature on resistance training and muscular hypertrophy focuses on whole body lean mass changes. The body of work which elucidate the effect of training on segmental lean mass is less documented. PURPOSE: The purpose of this study is to examine the effects of a short-term resistance training intervention on segmental lean mass in previously untrained college aged women. METHODS: 22 college aged women (age: 21 ± 4) volunteered …

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Changes In Ankle Angle And Knee Angle Throughout Gait With Ankle Bracing And Ankle Taping, Genavieve T. Evans, Tristyn G. Kattawar, Scott Mclean Feb 2026

Changes In Ankle Angle And Knee Angle Throughout Gait With Ankle Bracing And Ankle Taping, Genavieve T. Evans, Tristyn G. Kattawar, Scott Mclean

International Journal of Exercise Science: Conference Proceedings

Ankle taping and ankle bracing are the most common solutions to chronic ankle instability and ankle injuries, however, scientific findings suggest that changes in the individual’s gait patterns can occur with the addition of ankle restrictions. PURPOSE: to compare the effects of ankle bracing and taping with no support to lower extremity joint kinematics while walking on a treadmill. METHODS: Seventeen collegiate athletes (19.9 yrs, 1.74 m, 71.2 kg) completed walking trials on a treadmill under three ankle support conditions; no support, ankle taping, and ankle brace.  Ankle and knee angles were measured during the walking trials using electrogoniometers. Peak …

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Impact Of An 8-Week Personalized Exercise Program On Health-Related Fitness Parameters, Michelle Castro, Jasmeen Fajardo-Lopez, Major Martin, Raejone Lucas, Brock Niceler Md, Yunsuk Koh Feb 2026

Impact Of An 8-Week Personalized Exercise Program On Health-Related Fitness Parameters, Michelle Castro, Jasmeen Fajardo-Lopez, Major Martin, Raejone Lucas, Brock Niceler Md, Yunsuk Koh

International Journal of Exercise Science: Conference Proceedings

Introduction: A routine exercise program has been recommended across all demographic groups to improve cardiovascular health, muscle function, cognitive function, and mental health. Purpose: This study examined how personalized exercise affects health-related fitness parameters. Method: A total of 17 patients (age=42.88±12.89 years, male=1, and females=16), attending the fitness program at a regional hospital, were recruited. A health-related fitness battery test, including cardiorespiratory endurance, resting heart rate and blood pressure, motor fitness, musculoskeletal fitness, flexibility, body composition, and balance, was administered at the pre- (week 0), mid- (week 4), and post-study (week 8) periods. Results: Body fat (%) significantly decreased by …

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Differences In Lower Body Power, Maximum Voluntary Contraction (Mvc) Of The Arms, Grip Strength, And Reaction Time In Recreational Pickleball Players And Sedentary Women: A Pilot Study, Ayah R. Elshafie, Kamila Naranjo, Pamela Gonzalez, Hashim Elshafie, Victoria Garcia, Areli Cisneros, Jabeth Azpeitia, Ulku Karabulut, Rebekah Schlatter, Guillermo Perez Feb 2026

Differences In Lower Body Power, Maximum Voluntary Contraction (Mvc) Of The Arms, Grip Strength, And Reaction Time In Recreational Pickleball Players And Sedentary Women: A Pilot Study, Ayah R. Elshafie, Kamila Naranjo, Pamela Gonzalez, Hashim Elshafie, Victoria Garcia, Areli Cisneros, Jabeth Azpeitia, Ulku Karabulut, Rebekah Schlatter, Guillermo Perez

International Journal of Exercise Science: Conference Proceedings

Recreational pickleball participation has increased substantially among adult women; however, limited research exists examining neuromuscular performance in this population. PURPOSE: The purpose of this pilot study was to evaluate the feasibility of assessing lower body muscular power, maximum voluntary contraction (MVC) of the biceps and triceps brachii, grip strength, and reaction time in active pickleball-playing women compared to sedentary women to inform future research. METHODS: Ten participants (pickleball n=5, sedentary n=5) visited the laboratory to complete anthropometric measurements, lower body power assessment using a standardized sit-to-stand protocol with a Power Tendo device, and upper-extremity assessments including MVC for elbow flexion …

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Comparison Of Dxa-Derived Body Volume Estimation Equations (Wilson Vs Smith-Ryan) In Collegiate Rugby Union Athletes, Jmya Hughes, Hayden Johnson, Christian Rivera, Stephanie Hansford, Regan Renfro, Dalton Prye, Matthew Poole, Saheed Jaiyeola, Sage A. Newman, Adesiji Adetona, Oscar Woodside, Preston James, Kelly Hines, Jade Simon, Drew E. Gonzalez, Christopher D. Greenleaf, Micheil Spillane Feb 2026

Comparison Of Dxa-Derived Body Volume Estimation Equations (Wilson Vs Smith-Ryan) In Collegiate Rugby Union Athletes, Jmya Hughes, Hayden Johnson, Christian Rivera, Stephanie Hansford, Regan Renfro, Dalton Prye, Matthew Poole, Saheed Jaiyeola, Sage A. Newman, Adesiji Adetona, Oscar Woodside, Preston James, Kelly Hines, Jade Simon, Drew E. Gonzalez, Christopher D. Greenleaf, Micheil Spillane

International Journal of Exercise Science: Conference Proceedings

Accurate estimation of body volume (BV) is required for multicomponent body composition models. PURPOSE: Compare two published DXA-derived BV equations (Wilson vs Smith-Ryan) using whole-body Hologic DXA tissue masses in collegiate rugby union athletes. METHODS: Twenty-one male rugby union athletes underwent whole-body DXA (Hologic Horizon W; APEX v5.6.1.3 Rev 007; Classic calibration [NHANES BCA disabled]; standard tissue analysis; daily QC within tolerance) during morning testing (06:00–09:00 h) while fasted and post-void; caffeine was avoided (≥12 h) and exercise was avoided (≥24 h). Hydration was assessed prior to scanning via urine specific gravity (Siemens CLINITEK Status+; Multistix 10 SG) and urine …

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Agreement Of Seca 286 Scale Weight With Dxa Acquisition Weight, Apex Soft-Tissue Mass, And Dxa Sum-Of-Components Mass In Collegiate Rugby Athletes, Matthew Poole, Hayden Johnson, Christian Rivera, Stephanie Hansford, Regan Renfro, Dalton Prye, Saheed Jaiyeola, Sage A. Newman, Adesiji Adetona, Oscar Woodside, Jmya Hughes, Preston James, Kelly Hines, Jade Simon, Drew E. Gonzalez, Christopher D. Greenleaf, Micheil Spillane Feb 2026

Agreement Of Seca 286 Scale Weight With Dxa Acquisition Weight, Apex Soft-Tissue Mass, And Dxa Sum-Of-Components Mass In Collegiate Rugby Athletes, Matthew Poole, Hayden Johnson, Christian Rivera, Stephanie Hansford, Regan Renfro, Dalton Prye, Saheed Jaiyeola, Sage A. Newman, Adesiji Adetona, Oscar Woodside, Jmya Hughes, Preston James, Kelly Hines, Jade Simon, Drew E. Gonzalez, Christopher D. Greenleaf, Micheil Spillane

International Journal of Exercise Science: Conference Proceedings

Accurate body mass is foundational for DXA-derived indices and longitudinal tracking. PURPOSE: Determine agreement between Seca 286 scale weight and DXA acquisition weight, quantify the difference between DXA acquisition weight and the APEX whole-body mass field (fat + lean), and evaluate a DXA sum-of-components mass (fat + lean + BMC) relative to scale weight as an internal QC check (Houtkooper et al., Am J Clin Nutr, 2000). METHODS: Twenty-one male rugby union athletes completed same-morning testing (06:00–09:00 h) while fasted and post-void; caffeine was restricted (≥12 h) and exercise abstained (≥24 h). Hydration was screened prior to DXA. Body mass …

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The Effect Of Different Post-Activation Potentiation Protocols On Peak Muscle Torque During Knee Extension, Kaileb Bayliss, Steven Prince, Casi Helbig Feb 2026

The Effect Of Different Post-Activation Potentiation Protocols On Peak Muscle Torque During Knee Extension, Kaileb Bayliss, Steven Prince, Casi Helbig

International Journal of Exercise Science: Conference Proceedings

Post-activation potentiation is an important tool to utilize when trying to optimize exercise and sport performance. PURPOSE: The purpose of this study was to analyze different protocol lengths to determine if the post-activation potentiation effect can still manifest after just 1 specific warm up set vs. multiple specific warm up sets. METHODS: Subjects included eighteen college students from Texas Lutheran University with a mean age of 21.67 years (+/-2.70), height of 66.68 inches (+/-3.12), and weight of 176.56 pounds (+/-44.77). The subjects started the first session with a GWU that manifested as a 5 minute walk on an …

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Prep Monitoring, Coaching Presence, And Competitive Anxiety In Bodybuilders, Rafael E. Cachutt, Samantha S. Dardaman, Christian O. Quintero, Stephen E. Rowden, Maddox B. Utter, Scott B. Martin Feb 2026

Prep Monitoring, Coaching Presence, And Competitive Anxiety In Bodybuilders, Rafael E. Cachutt, Samantha S. Dardaman, Christian O. Quintero, Stephen E. Rowden, Maddox B. Utter, Scott B. Martin

International Journal of Exercise Science: Conference Proceedings

Competitive bodybuilding involves severe dietary restriction, high training demands, and constant evaluation of physique-related outcomes. Within the sport, it is common for competitors to engage in intensive prep monitoring behaviors such as tracking caloric intake and training load to support contest preparation. As contest prep practices may tax attentional resources and disrupt emotional regulation of competitors, some athletes utilize formal coaching to assist with performance monitoring while others engage in self-coaching strategies. PURPOSE: The purpose of this study was to examine sport anxiety levels amongst competitive bodybuilders who engage in prep monitoring behaviors. Additionally, the contribution of coaching presence was …

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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 …

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Aerobic Capacity And Maximal Work Performance In Firefighters: The Role Of Age And Body Composition In Occupational Health Risk, Payton E. Miller, Michael Conner, Grant M. Tinsley, Drew E. Gonzalez, Christine M. Florez, Carina M. Velasquez, Kelly Hines, Jacob A. Mota Feb 2026

Aerobic Capacity And Maximal Work Performance In Firefighters: The Role Of Age And Body Composition In Occupational Health Risk, Payton E. Miller, Michael Conner, Grant M. Tinsley, Drew E. Gonzalez, Christine M. Florez, Carina M. Velasquez, Kelly Hines, Jacob A. Mota

International Journal of Exercise Science: Conference Proceedings

Firefighting requires repeated bouts of high-intensity physical work performed under extreme environmental conditions, placing substantial strain on the cardiovascular and musculoskeletal systems. Cardiovascular disease (CVD) remains the leading cause of on-duty firefighter fatalities, with the majority of deaths occurring among firefighters aged 40 years and older. Physiological characteristics such as age and body composition influence aerobic capacity and maximal work performance, both of which are critical and essential while performing strenuous operations. PURPOSE: The purpose of this study was to examine how age, sex, and body composition affect aerobic capacity (VO2peak) and maximal work capacity (Wmax …

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The Role Of Attentional Focus In Ergometer Rowing Performance, Ana C. Morales Elizondo, Tatiana Zhuravleva Feb 2026

The Role Of Attentional Focus In Ergometer Rowing Performance, Ana C. Morales Elizondo, Tatiana Zhuravleva

International Journal of Exercise Science: Conference Proceedings

The effects of internal attentional cues versus external attentional cues have produced inconclusive findings regarding which attentional cue is more beneficial (Newmann, et al. 2020). Recent research has found a holistic approach that improves performance and learning in discrete tasks like vertical jumps; however, it has not been investigated with continuous tasks like rowing. PURPOSE: The purpose of this study was to examine the effects of internal, external, and holistic attentional cues on ergometer rowing performance. METHODS: Thirty-seven participants performed a six-minute ergometer rowing task across three different sessions, with at least 48 hours between each session, in a counterbalanced …

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How Self-Talk Affects Performance Among Ncaa Division Iii Female Athletes, Micah Rabey, Briannah Mejias, Giana Hilliard, Cambryn Holloway, Matt Robinson, Kristen Mcalexander Feb 2026

How Self-Talk Affects Performance Among Ncaa Division Iii Female Athletes, Micah Rabey, Briannah Mejias, Giana Hilliard, Cambryn Holloway, Matt Robinson, Kristen Mcalexander

International Journal of Exercise Science: Conference Proceedings

Self-talk alters mental toughness, emotional control, and behavioral reactions, and can affect an athlete’s cognitive and psychological condition throughout training, competition, and practice. Few studies have examined the role of self-talk specifically among female athletes and no known study has measured its effects among female athletes at the NCAA Division III level. PURPOSE: Examine how NCAA Division III female student athletes describe the role of self-talk in their athletic performance and identify specific ways they perceive self-talk, its functions during training and competition, and its impact on focus, motivation, confidence, and overall performance. METHODS: In the Fall of 2025, modified …

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Acute Effects Of Carbon Fiber Plate Insoles On Drop-Jump Performance And Force Characteristics In Recreationally Trained Adults, Becca Henicke, Boram Lim Feb 2026

Acute Effects Of Carbon Fiber Plate Insoles On Drop-Jump Performance And Force Characteristics In Recreationally Trained Adults, Becca Henicke, Boram Lim

International Journal of Exercise Science: Conference Proceedings

Carbon fiber plate insoles (CFPI) are designed to increase footwear stiffness and may improve elastic energy utilization during human locomotion. However, most research has focused on CFPI effects in running and sprinting, particularly endurance running, with limited evidence examining their impact on plyometric performance that relies heavily on the stretch-shortening cycle (SSC), a key mechanism underlying many sports movements.  Because SSC involves a rapid eccentric-to-concentric transition that stores and releases elastic energy, the drop jump provides a practical model to assess SSC efficiency with and without CFPI. PURPOSE: To examine the effects of CFPI on SSC efficiency and jump …

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Correlations Between Lower Body Plyometrics And Sprint Speed, Andrew Burnett, Casi Helbig Feb 2026

Correlations Between Lower Body Plyometrics And Sprint Speed, Andrew Burnett, Casi Helbig

International Journal of Exercise Science: Conference Proceedings

Speed and power are attributes that every athlete strives to improve. PURPOSE: The purpose of this study was to determine which of four plyometric tests correlated to sprint speed. METHODS: The subjects were 37 Texas Lutheran University baseball players. Participants performed a vertical jump, broad jump, triple broad jump, and 4-jump vertical test along with a thirty-yard sprint. Before each test, the subjects were put through the same dynamic warmup that was created by the experimenter. A vertical jump mat was used to measure both the vertical jump and the four jump vertical test. The vertical jump test …

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Patellofemoral Pain Syndrome, Baili Deaver, Joseph Friederich, Chuck Ruot, Lindsay Spindler Feb 2026

Patellofemoral Pain Syndrome, Baili Deaver, Joseph Friederich, Chuck Ruot, Lindsay Spindler

International Journal of Exercise Science: Conference Proceedings

CLINICAL PRESENTATION & EXAM: The primary characteristic of this condition is anterior patellar pain that worsens when the knee is put in a flexed, weight-bearing position. Patients with patellofemoral pain syndrome (PFPS) typically experience pain or stiffness during prolonged periods of sitting or when the patient descends stairs. Some of the most common forms of examination include examining a patient's gait, posture, and footwear. The patient should be asked about their current activity level, previous knee surgery or injuries, and recent changes in activity. Occasionally, knee buckling may occur due to weakness or pain in the quadriceps, resulting in …

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Preliminary Data On The Effect Of Exercise Time Of Day In Sedentary Young Adult Females, Autum Andrusick, Julia Martin, Robyn T. Whitehead, Malcolm T. Whitehead Feb 2026

Preliminary Data On The Effect Of Exercise Time Of Day In Sedentary Young Adult Females, Autum Andrusick, Julia Martin, Robyn T. Whitehead, Malcolm T. Whitehead

International Journal of Exercise Science: Conference Proceedings

Research studies investigating the time of day that individuals engage in exercise have not specifically targeted sedentary females or their preferred time of day to engage in exercise. Previously published studies have implemented cohorts that include both males and females and/or have focused on hormonal influences and daily patterns. Perceived energy and activation levels (for example: active, calm, and sleepy) have yet to be investigated as determinants of exercise time of day preference factors. PURPOSE: The purpose of the study was to determine if exercise time of day effects mood in sedentary adult females. METHODS: Eight females aged 23 ± …

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Does Perceived Competence And Practice Type Influence Motor Performance In Softball Pitchers Developing A New Pitch Type?, Anthony W. Fava, Matthew Miller, Emily Sauers, Gretchen Oliver Feb 2026

Does Perceived Competence And Practice Type Influence Motor Performance In Softball Pitchers Developing A New Pitch Type?, Anthony W. Fava, Matthew Miller, Emily Sauers, Gretchen Oliver

International Journal of Exercise Science: Conference Proceedings

Competence-based motivation frameworks use perceived self-confidence (PSC) to explain performance outcomes. Although PSC has been associated with improved performance on fundamental motor skills, PSC can also be task specific and may change depending on particular contexts within a sport. PURPOSE: To assess whether PSC influenced motor performance in softball pitchers developing a new pitch type under two different practice types. METHODS: Fifty adolescent-aged softball pitchers participated. Pitchers were randomly assigned into two practice types: Constraints-led Approach (CLA), (14.9±1.2y,64.8±10.1kg,1.69±0.1m), and Traditional (Trad), (14.5±1.0y, 65.4±11.4kg, 1.67±0.1m). Recruited pitchers indicated the drop ball (DB) was not their ‘go-to’ pitch nor was …

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Effect Of Lower Leg Air Compression On Systemic Blood Pressure, Kimberly Livingston, John D. Smith Feb 2026

Effect Of Lower Leg Air Compression On Systemic Blood Pressure, Kimberly Livingston, John D. Smith

International Journal of Exercise Science: Conference Proceedings

Given the critical role of blood pressure monitoring in clinical settings and the widespread use of compression therapy, it is important to clarify whether and how leg compression devices influence blood pressure. PURPOSE: To examine blood pressure and heart rate responses to intermittent pneumatic compression (IPC). METHODS: Participants (n=21, age=24.3±8.0 yrs, ht=164.1±7.4 cm, wt=69.5±15.2 kg) reclined on a chair and rested for 5 minutes after which blood pressure and heart rate was measured using an Omron automatized device. An air compression therapy boot was used on the right and left legs using a circulation mode on the maximum setting for …

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Association Between Habitual Sleep Duration Variability And Cardiovascular Reactivity To Mental Stress, Anjana Chepur, Jeremy A. Bigalke, Jason R. Carter Feb 2026

Association Between Habitual Sleep Duration Variability And Cardiovascular Reactivity To Mental Stress, Anjana Chepur, Jeremy A. Bigalke, Jason R. Carter

International Journal of Exercise Science: Conference Proceedings

Nightly variability in sleep duration is an independent predictor of cardiovascular risk, yet the physiological mechanisms underlying this association remain unclear. Few investigations have focused on whether variability in habitual sleep duration influences autonomic and cardiovascular responses to acute stress. PURPOSE: The purpose of this study was to examine whether habitual variability in nightly sleep duration predicts autonomic and cardiovascular reactivity to acute psychosocial stress, as measured by blood pressure, heart rate, and heart rate variability (HRV) changes during the Trier Social Stress Test (TSST). We hypothesized that individuals with greater sleep duration variability would exhibit exaggerated autonomic and cardiovascular …

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Effect Of Walking With Weighted Vest On Gait Mechanics And Energy Expenditure, Nicholas Becerra, John D. Smith Feb 2026

Effect Of Walking With Weighted Vest On Gait Mechanics And Energy Expenditure, Nicholas Becerra, John D. Smith

International Journal of Exercise Science: Conference Proceedings

Weighted vests are used in many different types of exercises to increase difficulty/intensity. The distribution of weight matters when it comes to performance (Gerhart et al. 2020), and if weight is not distributed properly, then balance may be affected, thereby changing gait and further increasing energy expenditure. Others have also suggested increasing the load of the weighted vest can decrease pH level within the body (Martínez-Noguera, et al. 2024), however it is unclear is changes in gait are contributing to this increased effort. PURPOSE: to investigate the effect of using a weighted vest while walking on a treadmill has …

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Skeletal Muscle Mass Estimation By Dual-Energy X-Ray Absorptiometry And Bioimpedance Techniques In Muscular, Resistance-Trained Adults, John R. Alexander, Christian Rodriguez, Christine M. Florez, Ethan G. Tinoco, Julia Whitson, Carina M. Velasquez, Grant M. Tinsley Feb 2026

Skeletal Muscle Mass Estimation By Dual-Energy X-Ray Absorptiometry And Bioimpedance Techniques In Muscular, Resistance-Trained Adults, John R. Alexander, Christian Rodriguez, Christine M. Florez, Ethan G. Tinoco, Julia Whitson, Carina M. Velasquez, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Skeletal muscle mass (SMM) is an important body composition metric in clinical and research settings. However, criterion methods such as magnetic resonance imaging and computed tomography are largely inaccessible, so surrogate methods such as dual-energy X-ray absorptiometry (DXA) and bioelectrical impedance are used to estimate SMM. The agreement of these surrogate estimates may be impacted by physiological characteristics of the specific populations being evaluated. PURPOSE: To compare SMM estimates derived from DXA and bioimpedance methods using differing prediction equations within a sample of muscular, resistance-trained adults. METHODS: Forty participants (23 M, 17 F; [mean ± SD] age: 28.1 …

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Effect Of A Bungee Tension System On Physiological And Gait Variables While Walking, Adriana F. Oviedo, Gary Guerra, John D. Smith Feb 2026

Effect Of A Bungee Tension System On Physiological And Gait Variables While Walking, Adriana F. Oviedo, Gary Guerra, John D. Smith

International Journal of Exercise Science: Conference Proceedings

Unloaded treadmill walking has shown to improve motor function, balance and locomotion ability. This type of mechanism is commonly used in rehabilitation and therapy settings and is becoming more popular. PURPOSE: To examine two different bungee attachments on oxygen consumption (VO2), heart rate (HR), rating of perceived exertion (RPE Borg’s 6-20, VAS) and gait. METHODS: Participants (n=21, age=22.0±2.7 yrs, ht=66.4±2.9 in, wt=166.3±26.5 lbs) walked on a treadmill at three mph for 10 min while interfaced with an oxygen analyzer and APDM Inertial Measurement Unit (IMU) gait sensors without unweighting (NU), unweighted with a intermediate tension bungee …

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Psychological And Physiological Effects Of Acute Cold Exposure Following Bouts Of Intense Exercise, Blake E. Wright, Leroy Bolden, Cory Smith, Andrew Gallucci Feb 2026

Psychological And Physiological Effects Of Acute Cold Exposure Following Bouts Of Intense Exercise, Blake E. Wright, Leroy Bolden, Cory Smith, Andrew Gallucci

International Journal of Exercise Science: Conference Proceedings

Background: Thermal strain results from extreme temperature exposures and is common among athletes that create conflicting physiological responses. However, little is known on how rapidly shifting the body from a heat-dissipating to a heat-conserving state impacts human physiologically and psychologically. Purpose: To assess the physiological and psychological effects of thermal strain on collegiate football players.  Methods: 18 Division I collegiate football players (19.72y ± 1.36) participated in the study during one full contact practice in the spring semester. Participants reported to the athletic training room 15-minutes before practice to have a Zephyr sensor placed in the midaxillary line. Participants also …

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Which Sex Hormone Markers Best Predict Bone Mineral Density? A Nhanes 2013-2014 Analysis, Katarina Kozakova, Elina Satlik, Sarah E. Little-Letsinger Feb 2026

Which Sex Hormone Markers Best Predict Bone Mineral Density? A Nhanes 2013-2014 Analysis, Katarina Kozakova, Elina Satlik, Sarah E. Little-Letsinger

International Journal of Exercise Science: Conference Proceedings

Osteoporosis is a silent disease that is typically not diagnosed until after a fracture has occurred. Identifying biomarkers routinely collected by physicians can serve as a simple and effective screening approach to detect osteoporosis before debilitating fractures occur. The ratio of total estradiol to total testosterone (ET x10)/TT has been proposed as a biomarker associated with bone mineral density (BMD). To further improve predictive power, we propose a ratio of estradiol to free testosterone (ET/TF), rather than total, to account for the difference in hormone bioavailability. PURPOSE: The present analysis compares the association …

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Dehydration Alters Pbmc Inflammatory Propensity That Impair Myoblast Fusion: An Ex-Vivo Approach, Casey Appell, Trinity N. Domonkos, Karina Olvera, Sarah Walper, Christian J. Hoebelheinrich, Larry Munger, Danielle Levitt, Hui-Ying Luk Feb 2026

Dehydration Alters Pbmc Inflammatory Propensity That Impair Myoblast Fusion: An Ex-Vivo Approach, Casey Appell, Trinity N. Domonkos, Karina Olvera, Sarah Walper, Christian J. Hoebelheinrich, Larry Munger, Danielle Levitt, Hui-Ying Luk

International Journal of Exercise Science: Conference Proceedings

Muscle recovery from damage requires satellite cell activation to myoblasts and subsequent myoblast fusion, processes that are influenced, by immune-muscle crosstalk. In this context, the inflammatory propensity of peripheral blood mononuclear cells (PBMCs), may alter myoblast fusion. In vitro studies have shown that hyperosmotic stress alters PBMC inflammatory potency. However, the effect of dehydration (elevated plasma osmolality) on PBMC inflammatory propensity, and its impact on myoblast fusion is unknown. PURPOSE: To determine the effect of dehydration following muscle damage on PBMC inflammatory propensity to alter myoblast fusion using an ex-vivo model. METHODS: Active men (n=4, 19±1yr, 173.4±7.6cm, 84.3±11.6kg) …

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The Effect Of 8-Weeks Of Exercise Training On Metabolic Health And Continuous Glucose Monitoring Metrics Among Insulin Sensitive And Resistant Adults, Joshua Labadah, Adrian Ordaz, Seyram Azagloh, Richard Vazquez, Jehu N. Apaflo, Sudip Bajpeyi Feb 2026

The Effect Of 8-Weeks Of Exercise Training On Metabolic Health And Continuous Glucose Monitoring Metrics Among Insulin Sensitive And Resistant Adults, Joshua Labadah, Adrian Ordaz, Seyram Azagloh, Richard Vazquez, Jehu N. Apaflo, Sudip Bajpeyi

International Journal of Exercise Science: Conference Proceedings

An elevated homeostatic model assessment of insulin resistance index (HOMA-IR) ≥ 2.5 is commonly used to classify insulin resistance (IR). IR is a well-established precursor to the development of diabetes and other metabolic diseases. Exercise is a well-established intervention for the improvement of metabolic health but the comparison of the effect of exercise among IR and insulin sensitive (IS) non-diabetic adults with the use continuous glucose monitoring has not been adequately studied.  PURPOSE: To determine if non-diabetic individuals with insulin resistance have attenuated improvement in exercise-induced improvement in metabolic health and CGM metrics of glycemic control in comparison to …

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Pre-Exercise Positive Mood Affect Predicts Blunted Lymphocyte Mobilization And Faster Recovery After Acute Exercise (Caare Secondary Analysis), Arman M. Rasti, Melissa Markofski Feb 2026

Pre-Exercise Positive Mood Affect Predicts Blunted Lymphocyte Mobilization And Faster Recovery After Acute Exercise (Caare Secondary Analysis), Arman M. Rasti, Melissa Markofski

International Journal of Exercise Science: Conference Proceedings

Acute exercise mobilizes lymphocytes and monocytes into circulation and alters cortisol, but it is not known whether psychological states before exercise shape immune responses in adults, or whether cortisol mediates any associations between mood and immune mobilization. PURPOSE: To test whether baseline affect and total mood disturbance (TMD) predict lymphocyte/monocyte mobilization and 1-h recovery after aerobic training (AT) and resistance training (RT), whether they predict cortisol responses, and whether cortisol mediates mood–immune links. METHODS: This is a secondary analysis of data from a randomized, complete crossover study in which adults completed both an AT and a RT session. Composite affect …

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Mediating Factors Of Exercise Identity And Perceived Stress, Cydni M. Miller, Kameron Sanders, Jada Mendoza, Brooke Walsh, Jasmine Hamilton Feb 2026

Mediating Factors Of Exercise Identity And Perceived Stress, Cydni M. Miller, Kameron Sanders, Jada Mendoza, Brooke Walsh, Jasmine Hamilton

International Journal of Exercise Science: Conference Proceedings

As we continue to traverse influences of the post COVID-19 public health environment, there have been noted effects associated with mental and physical health. Stress and anxiety can lead to burnout and have negative physical effects on the body. Research indicated that increases in exercise participation may reduce burnout among college students (Chen et al., 2022). For college students, access to resources such as recreational centers may help to alleviate the negative effects of anxiety. Physical activity has also been shown to improve the relationship between self-image and esteem (Gan & Jiang, 2024). PURPOSE: This study sought to explore the …

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