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Articles 1921 - 1950 of 43085
Full-Text Articles in Entire DC Network
Relationships Between Body Composition And Game Day Training Load In Ice Hockey Players, Alexandra P. Brojanac, Ruben Moya, Ethan Tinoco, Ciriany Arrazola, Christian Rodriguez, Yasuki Sekiguchi, Grant M. Tinsley
Relationships Between Body Composition And Game Day Training Load In Ice Hockey Players, Alexandra P. Brojanac, Ruben Moya, Ethan Tinoco, Ciriany Arrazola, Christian Rodriguez, Yasuki Sekiguchi, Grant M. Tinsley
International Journal of Exercise Science: Conference Proceedings
Body composition can impact physical activities and exercise performance. However, relationships between body composition and workload during ice hockey games remain unknown. PURPOSE: To examine relationships between body composition and game day training load in ice hockey players. METHODS: Eleven highly-trained ice hockey players (10 males, 1 female; mean ± standard deviation; age, 21.73 ± 1.34 yrs.; height, 179.93 ± 8.49 cm; body mass, 76.87 ± 14.38 kg, body fat percentage [BFP]: 18.0 ± 7.9% [mean ± SD]; fat-free mass index [FFMI]: 19.8 ± 2.2 kg/m2) participated in the study. First, participants visited the laboratory to assess their body …
Dehydration And Heavy Resistance Exercise Effect On Intracellular And Intramuscular Fluid Shifts, Mia A. Uriegas, Nigel Jiwan, Casey Appell, Andrew Schindel, Ryanoneil Ellis, Jalyn Dunlap, Christopher Washington, Isabell R. Trevino, Carson W. Lewis, Jan-Joseph S. Rolloque, Ruben Moya, Marcos Keefe, Ryan Dunn, Yasuki Sekiguchi, Hui-Ying Luk
Dehydration And Heavy Resistance Exercise Effect On Intracellular And Intramuscular Fluid Shifts, Mia A. Uriegas, Nigel Jiwan, Casey Appell, Andrew Schindel, Ryanoneil Ellis, Jalyn Dunlap, Christopher Washington, Isabell R. Trevino, Carson W. Lewis, Jan-Joseph S. Rolloque, Ruben Moya, Marcos Keefe, Ryan Dunn, Yasuki Sekiguchi, Hui-Ying Luk
International Journal of Exercise Science: Conference Proceedings
Dehydration may alter the ratio between the extracellular water (ECW) and intracellular water (ICW). Nevertheless, it is unknown whether the ratio between ECW and ICW following resistance exercise (RE) is affected by dehydration. PURPOSE: To determine the effect of dehydration on fluids shift after heavy RE. METHODS: 13 resistance-trained men (age: 21±2years; height: 176.4±6.0cm; weight: 79.5±11.5kg) completed a heavy RE consisting of bilateral leg press and knee extension exercises (5 x 10 at 80% of 1 repetition maximum with 2-mins rest between sets & exercises) either under a hydrated (HS; urine specific gravity [USG] < 1.020) or a dehydrated state (DS; USG ≥ 1.020; 24-hour fluid restriction). The two conditions were separated by two weeks. The ratio of ICW/ECW and total body water (TBW) were measured before (PRE), 1 hour (1H), and 3H after RE using bioelectrical impedance spectroscope (BIS). Additionally, vastus lateralis muscle samples were collected at PRE, 1H, and 3H via muscle biopsy. Muscle samples were weighed (Wt) before (Wet) and after (Dry) heating at 80°C for 55 minutes. For BIS parameters, values were normalized to each participant's HS PRE value. For muscle Wt, percent changes from Dry to Wet were calculated. Repeated measures ANOVAs were used to identify the differences. RESULTS: A significant …
Effects Of Diabetic Peripheral Neuropathy On Antagonistic Muscle Coactivation In Older Adults During The Stand-To-Sit, Mohsen Alighanbari, Lisa Griffin
Effects Of Diabetic Peripheral Neuropathy On Antagonistic Muscle Coactivation In Older Adults During The Stand-To-Sit, Mohsen Alighanbari, Lisa Griffin
International Journal of Exercise Science: Conference Proceedings
Diabetic peripheral neuropathy (DPN) affects sensory afferents, causing a greater rate of falling in older adults with DPN than in healthy older adults. During transition tasks, such as the stand-to-sit (StandTS), feedback from the proprioceptive system is essential to control coactivation of antagonistic muscles, in order to control the movement of the center of mass. However, the effect of DPN on coactivation of antagonistic muscles is not well understood. PURPOSE: To assess the effects of DPN on coactivation of antagonistic muscle pairs across the ankle, knee, and hip joints in older adults with DPN compared to healthy controls. METHODS …
Racial Differences In Cerebral Hemodynamics During Aerobic Exercise, Ziba Taherzadeh, Claire E. Kissel, Taha Alhalimi, Paul J. Fadel
Racial Differences In Cerebral Hemodynamics During Aerobic Exercise, Ziba Taherzadeh, Claire E. Kissel, Taha Alhalimi, Paul J. Fadel
International Journal of Exercise Science: Conference Proceedings
Young healthy non-Hispanic Black (BL) adults have an attenuated increase in blood flow to working skeletal muscle during exercise compared to non-Hispanic white (WH) adults. Cerebral blood flow also increases during exercise; however, previous work has mainly included WH adults. There are no studies investigating potential differences in cerebral vascular responses to exercise in BL adults. PURPOSE: To compare middle cerebral artery velocity (MCAv) and cerebral vascular conductance index (CVCi) during exercise in BL adults to WH adults. We tested the hypothesis that BL adults have a blunted increase in MCAvmean and CVCi response during light and moderate intensity …
Comparison Of Overground, Motorized Treadmill And Non-Motorized Treadmill Gait, Kevan D. Kennedy, Scott P. Mclean, Emma Williams
Comparison Of Overground, Motorized Treadmill And Non-Motorized Treadmill Gait, Kevan D. Kennedy, Scott P. Mclean, Emma Williams
International Journal of Exercise Science: Conference Proceedings
Shaulis et al., (2022) found that walking on a non-motorized treadmill (NMT) elicited greater EMG activity from plantar flexor (PF) muscles compared to walking overground (OG) and on a motorized treadmill (MT). PURPOSE: To compare kinematics, kinetics and EMG in OG, MT, and NMT walking. METHODS: Twenty-one healthy adults (24.4±7.2 yrs, 1.75±0.09 m, 75.4±13.1 kg) completed one trial of walking at 3.0 mph in each of three modes (OG, MT, NMT). All dependent measures were averaged across a minimum of two consecutive gait cycles. Surface EMG of the Gastrocnemius (GA), and Tibialis Anterior (TA) was collected at 1000 …
Trabecular And Cortical Bone And Ossified Vessel Alterations In Rat Tibiae With The Onset And Progression Of Type 2 Diabetes Mellitus In A Novel, Transgenic Rat Model, Jason Mcintire, Rhonda Prisby, Audrey J. Stone, Michelle L. Harrison, Kimber L. Stanhope, Peter J. Havel D.V.M., Ph.D.
Trabecular And Cortical Bone And Ossified Vessel Alterations In Rat Tibiae With The Onset And Progression Of Type 2 Diabetes Mellitus In A Novel, Transgenic Rat Model, Jason Mcintire, Rhonda Prisby, Audrey J. Stone, Michelle L. Harrison, Kimber L. Stanhope, Peter J. Havel D.V.M., Ph.D.
International Journal of Exercise Science: Conference Proceedings
Type 2 Diabetes Mellitus (T2DM) is a metabolic disorder of systemic complications including increased fracture risk and microvascular pathology, suggesting a potential link between the two. PURPOSE: We determined how the onset and progression of T2DM affected bone and marrow vasculature in the University of California Davis T2DM transgenic rat model. METHODS: Forty-eight male T2DM rats were divided accordingly: pre-diabetes (12wks), diabetes onset (14wks), early-stage diabetes (20wks; 4wks post-onset), and late-stage diabetes (22wks; 12wks post-onset) matched with four healthy control (CTL; Sprague Dawley) groups. Body mass(g), HbA1c(%), and fasted blood glucose(g/dL) were measured at sacrifice. Tibiae were scanned via …
Observation Of Jump Height, Peak Propulsive Force, Braking Force, And Loading Force In Acrobatics And Tumbling Athletes During A Completive Season: Pilot, Katelyn Kolodziejczyk, Jaci Davis, Alyssa Faterkowski, Nikolas Keratsopoulos, Robert Mills, Jayden Widener, Lemuel W. Taylor Iv, Mandy E. Parra
Observation Of Jump Height, Peak Propulsive Force, Braking Force, And Loading Force In Acrobatics And Tumbling Athletes During A Completive Season: Pilot, Katelyn Kolodziejczyk, Jaci Davis, Alyssa Faterkowski, Nikolas Keratsopoulos, Robert Mills, Jayden Widener, Lemuel W. Taylor Iv, Mandy E. Parra
International Journal of Exercise Science: Conference Proceedings
Acrobatics and tumbling is a women’s sport comprised of 3 different positions: base, top, and tumbler. Each position endures substantial impact on the musculotendinous unit, however, tumblers experience the greatest lower extremity eccentric impact leading to a high injury rate. Consistent athlete monitoring may lead to injury prevention and better insights into training. PURPOSE: The purpose of this study is to pilot observational differences in jump height (JH), peak propulsive force (PPF), peak braking force (PBF), and peak landing force (PLF) during the counter movement jump (CMJ) in acrobatics and tumbling between tumbler and non-tumbler athletes during a …
Changes In Central And Peripheral Hemodynamics In Females Of The Rio Grande Valley With High-Intensity Resistance Focused Training., Melody Cantu, Abigail Gomez, Sophia Moreno, Ana Gonzalez, Alissa Olvera, Andrea Toledo, Yu Lun Tai, Ryan D. Russell
Changes In Central And Peripheral Hemodynamics In Females Of The Rio Grande Valley With High-Intensity Resistance Focused Training., Melody Cantu, Abigail Gomez, Sophia Moreno, Ana Gonzalez, Alissa Olvera, Andrea Toledo, Yu Lun Tai, Ryan D. Russell
International Journal of Exercise Science: Conference Proceedings
Cardiovascular disease (CVD) is a leading cause of death in the US, with type 2 diabetes increasing its risk ~4-fold. The Rio Grande Valley has ~3x higher rates of T2D and CVD than the US average. Both central and peripheral diastolic blood pressure are predictors of CVD risk and have been shown to decrease in obese males following high-intensity resistance focused training (HIRFT). The effects of HIRFT on central hemodynamics in females are unknown, particularly in a high-risk population. Purpose: To determine the effects of a 7-week HIRFT program on central and peripheral hemodynamics in women in a high-risk population. …
Total Lean Body Mass And Lower Body Lean Mass Correlation With Vertical Jump In Untrained Women Basketball Players After 8 Weeks Of Resistance Training, Mathis Rollin, Mandy E. Parra, Lemuel W. Taylor Iv, Jaci Davis, Katelyn Kolodziejczyk, Alyssa Faterkowski, Nikolas Keratsopoulus, Robert Mills, Jayden Widener
Total Lean Body Mass And Lower Body Lean Mass Correlation With Vertical Jump In Untrained Women Basketball Players After 8 Weeks Of Resistance Training, Mathis Rollin, Mandy E. Parra, Lemuel W. Taylor Iv, Jaci Davis, Katelyn Kolodziejczyk, Alyssa Faterkowski, Nikolas Keratsopoulus, Robert Mills, Jayden Widener
International Journal of Exercise Science: Conference Proceedings
Basketball is a fast, explosive sport where a high vertical jump (VJ) is extremely beneficial. Research has shown that greater amounts of lean mass have been associated with higher force output, and therefore higher VJ. PURPOSE: The purpose of this study is to examine the correlation of overall total lean body mass percentage (TBLM%) and lower body lean mass percentage (LBLM%) and Body fat percentage (BF%) with VJ in previously untrained collegiate D-III women basketball players. METHODS: Fourteen females (20±1.3 years, 170.68±8.76 cm, T1 BF% 28.68±5.38, T2 27.11±5.12) basketball team participated in this study. Athletes were tested on two different …
Blood Pressure Variability In Young Male Adult Habitual Vapers, Rie V. Conley, Claire E. Kissell, Ziba Taherzadeh, Danny Dubroy, Benjamin E. Young, Ziyad Ben Taleb, Paul J. Fadel
Blood Pressure Variability In Young Male Adult Habitual Vapers, Rie V. Conley, Claire E. Kissell, Ziba Taherzadeh, Danny Dubroy, Benjamin E. Young, Ziyad Ben Taleb, Paul J. Fadel
International Journal of Exercise Science: Conference Proceedings
The use of e-cigarettes (i.e., vaping) has risen dramatically in the last few years. Vaping is more appealing and accessible to young people than traditional smoking. The ease of use can increase the frequency of vaping, which may increase the amount of nicotine consumed. Nicotine is a potent vasoconstrictor that may also affect blood pressure (BP). Indeed, previous studies have shown that traditional cigarette smoking increases BP variability. This is noteworthy because elevated BP variability has been shown to predict future development of cardiovascular disease. However, whether habitual vaping influences BP variability remains unknown. PURPOSE: To test the hypothesis …
Assessing The Differences Between Chewing And Swallowing Arugula Extract Capsules On The Concentrations Of Nitric Oxide Metabolites In Metabolically Healthy Males, Tomas J. Chapman-Lopez, Leroy Bolden, Dylan T. Wilburn, Jeffery L. Heileson, Rodney Sturdivant, Andrew R. Gallucci, Leslee K. Funderburk, Jeffrey S. Forsse
Assessing The Differences Between Chewing And Swallowing Arugula Extract Capsules On The Concentrations Of Nitric Oxide Metabolites In Metabolically Healthy Males, Tomas J. Chapman-Lopez, Leroy Bolden, Dylan T. Wilburn, Jeffery L. Heileson, Rodney Sturdivant, Andrew R. Gallucci, Leslee K. Funderburk, Jeffrey S. Forsse
International Journal of Exercise Science: Conference Proceedings
Previous literature has examined the benefits of consuming nitrate (NO3)-rich crops (e.g., beetroot, spinach, watercress, arugula) on endothelial function due to their positive influence on nitric oxide (NO) production from the utilization of nitrate-reducing bacteria in the oral microbiome. However, there has yet to be a study addressing how the method of consumption may influence the role the oral microbiome plays in the degradation of NO3 to NO from consuming an encapsulated NO3-rich crop. PURPOSE: To determine the differences in NO metabolite concentrations following two different methods (e.g., chewing, swallowing) of consuming the encapsulated arugula extract. METHODS: Eight, …
Concurrent Exercise Training Program Adaptations In Sedentary, Middle-Aged Adults, Zachary Moon, Erica Otto, Rachel Chiella, Barrett Knapp, Matthew Bierwirth, Edward Merritt
Concurrent Exercise Training Program Adaptations In Sedentary, Middle-Aged Adults, Zachary Moon, Erica Otto, Rachel Chiella, Barrett Knapp, Matthew Bierwirth, Edward Merritt
International Journal of Exercise Science: Conference Proceedings
Concurrent exercise programs are necessary to achieve minimal physical activity guidelines for cardiorespiratory fitness and musculoskeletal health, however, only 24% of Americans achieve these goals. Among middle-aged adults, lack of time is often cited as the reason they do not meet the guidelines. PURPOSE: Design a program with minimal exercise time (180 minutes/week) and track middle-aged adults' changes in cardiorespiratory and musculoskeletal health over 16 weeks of training. METHODS: Sedentary adults between the ages of 30 and 55 were recruited for this pilot study. Participants completed a training program of 4 days per week of structured workouts for …
Enhancing Oxygen Uptake Efficiency Through Nasal Breathing In Aerobic Exercise, Kylie Allen, Jose M. Moris, Ryan Curtis, Christian J. Chang, Brandon Arnold, Yunsuk Koh
Enhancing Oxygen Uptake Efficiency Through Nasal Breathing In Aerobic Exercise, Kylie Allen, Jose M. Moris, Ryan Curtis, Christian J. Chang, Brandon Arnold, Yunsuk Koh
International Journal of Exercise Science: Conference Proceedings
An individual’s ability to use oxygen to sustain aerobic performance, as denoted by the oxygen uptake efficiency (OUE), is calculated by dividing oxygen uptake (VO2) by ventilation (VE). Whether nasal breathing (NB) during exercise would improve OUE more significantly compared to combined breathing (CB) remains uncertain. PURPOSE: To determine the effects of utilizing NB during exercise on OUE. METHODS: Fourteen males (age: 20.57 ± 1.22 yrs; BMI: 26.03 ± 3.16 kg/m2) were randomly assigned to the NB (n = 8) or CB (n = 6) group for a 4-week supervised aerobic exercise intervention conducted four times …
The Effects Of Weekly And Game-Day Weather Conditions On Soccer Game-Day Performance, Ciriany Arrazola, Jan-Joseph S. Rolloque, Kelly B. Elliott, Ruben Moya, Marcos Keefe, Yasuki Sekiguchi
The Effects Of Weekly And Game-Day Weather Conditions On Soccer Game-Day Performance, Ciriany Arrazola, Jan-Joseph S. Rolloque, Kelly B. Elliott, Ruben Moya, Marcos Keefe, Yasuki Sekiguchi
International Journal of Exercise Science: Conference Proceedings
Game-day performance may be influenced by factors such as training load management, hydration status, and environmental conditions at all levels of competition in soccer. However, there is currently a lack of literature examining the effects of weather conditions, prior to and during game-days, on game-day performance in soccer players. PURPOSE: To observe the effects of the 7-day average of weather conditions prior to game-day and average game-day weather conditions on game-day performance, more specifically heart rate (HR) and running velocity. METHODS: Twenty-one male semi-professional soccer players (mean ± SD; age: 22 ± 2 yr; mass: 77.3 ± 6.9 …
Modified Reactive Strength Index In Diii Acrobatics And Tumbling Athletes: A Retrospective Pilot Study, Nikolas Keratsopoulos, Jaci Davis, Alyssa Faterkowski, Katelyn Kolodziejczyk, Robert Mills, Jayden Widener, Lemuel W. Taylor Iv, Mandy E. Parra
Modified Reactive Strength Index In Diii Acrobatics And Tumbling Athletes: A Retrospective Pilot Study, Nikolas Keratsopoulos, Jaci Davis, Alyssa Faterkowski, Katelyn Kolodziejczyk, Robert Mills, Jayden Widener, Lemuel W. Taylor Iv, Mandy E. Parra
International Journal of Exercise Science: Conference Proceedings
Acrobatics and tumbling is a physically demanding sport that combines skills used in cheerleading and gymnastics during individual and group acrobatic lifts, tosses, and tumbling passes. These athletes experience excessive loading of the lower extremities during training and competition. Due to the explosive demands of the sport, injuries are common. Modified reactive strength index (mRSI) is the ability to change from an eccentric muscle action to a concentric muscle action and has been used as a field-based method to assess recovery and exercise readiness using the countermovement jump (CMJ). PURPOSE: The purpose of this study is to investigate changes …
Relationship Between Intestinal Permeability And Microvascular Responses In A High-Risk Hispanic Population Of The Rio Grande Valley, Sophia M. Moreno, Alissa Olvera, Abigail Gomez, Ryan Russell, Melody Cantu, Andrea Toledo, Yu Lun Tai
Relationship Between Intestinal Permeability And Microvascular Responses In A High-Risk Hispanic Population Of The Rio Grande Valley, Sophia M. Moreno, Alissa Olvera, Abigail Gomez, Ryan Russell, Melody Cantu, Andrea Toledo, Yu Lun Tai
International Journal of Exercise Science: Conference Proceedings
The Rio Grande Valley (RGV) has ~3x higher rates of diagnosed cardiovascular disease (CVD) and type 2 diabetes (T2D) than the US, which combine to be the leading cause of preventable death in the developed world. Microvascular blood flow (MBF) responses are an early indicator of vascular insulin resistance, and is blunted with obesity, T2D, and those at high risk for T2D. We have previously shown that apparently healthy people in the RGV display impaired MBF responses, helping explain the disparities noted with chronic disease. However mechanisms explaining this early vascular insulin resistance remain unexplored. Recent studies indicate that increased …
Exercise Pressor Response In Hispanic Adults With Family History Of Hypertension, Ashlesha D. Dalve, Justo Perez Iii, Ruby A. Nyarko, Jasdeep Kaur
Exercise Pressor Response In Hispanic Adults With Family History Of Hypertension, Ashlesha D. Dalve, Justo Perez Iii, Ruby A. Nyarko, Jasdeep Kaur
International Journal of Exercise Science: Conference Proceedings
Family history of hypertension (FHH), being an unmodifiable risk factor, increases probability of developing hypertension and other cardiovascular diseases. The prevalence of hypertension in Hispanic/Latino (H/La) males is 50.3%, while it is 48.9% in non-Hispanic white (NHW) males and 57.5% in non-Hispanic black (NHB) males. Among adolescents aged 8 to 17, H/La youth has the highest incidence of hypertension as compared to all other races. It is evident that young normotensive adults with positive family history of hypertension (+FHH) exhibit exaggerated exercise pressor response. Additionally, a higher sympathetic activity to cold pressor test (CPT) was found in normotensive NHB adults …
Systemic Inflammation Persists In Rats With Heart Failure After A Short-Term Endurance Training Protocol, Quinten Pigg, Dillon Harris, Aaron Garcia, Daniela Sayuri Inoue, Mariana Janini Gomes
Systemic Inflammation Persists In Rats With Heart Failure After A Short-Term Endurance Training Protocol, Quinten Pigg, Dillon Harris, Aaron Garcia, Daniela Sayuri Inoue, Mariana Janini Gomes
International Journal of Exercise Science: Conference Proceedings
Exercise has been shown to produce an anti-inflammatory response and an increased exercise tolerance in heart failure (HF) patients. In rats, monocrotaline (MCT) leads to pulmonary arterial hypertension-induced HF (PAH-HF), resulting in exercise intolerance and chronic inflammation. However, little is known about the effects of endurance training in rats with PAH-HF induced by monocrotaline. PURPOSE: To investigate the effects of an endurance training protocol on systemic inflammatory markers and exercise tolerance in rats with HF. METHODS: 30 male Wistar rats (~250g) were randomly divided into 4 groups: control untrained (CU); control trained (CT), PAH-HF untrained (HFU), and PAH-HF trained (HFT). …
Glutathione Peroxidase Enzymatic Activity In Response To Transient Hypercapnic Aerobic Exercise, Ryan Curtis, Jose M. Moris, Christian J. Chang, Kylie Allen, Brandon Arnold, Yunsuk Koh
Glutathione Peroxidase Enzymatic Activity In Response To Transient Hypercapnic Aerobic Exercise, Ryan Curtis, Jose M. Moris, Christian J. Chang, Kylie Allen, Brandon Arnold, Yunsuk Koh
International Journal of Exercise Science: Conference Proceedings
Nasal breathing (NB) during aerobic exercise has gained attention due to its potential benefits to physical performance and health adaptations. However, it is unclear how an NB-induced increase in the partial pressure of CO2 (PetCO2) affects the enzymatic activity of glutathione peroxidase (GPX). PURPOSE: To determine the activity of GPX after 1-month of transient hypercapnic training induced by NB. METHODS: Fourteen males (age = 20.57 ± 1.22 yrs) were randomized to either the NB (n = 8) or combined breathing (CB, n = 6) group. Participants performed supervised aerobic training 4 times per week at ~70% …
Resistance Training Status And Detection Of Sarcopenia-Related Risk In Older Adults, Khizra Khan, Ashlyn Fisher, Quinten Pigg, Holly Kendall, Lindsay E. Kipp, Joni A. Mettler
Resistance Training Status And Detection Of Sarcopenia-Related Risk In Older Adults, Khizra Khan, Ashlyn Fisher, Quinten Pigg, Holly Kendall, Lindsay E. Kipp, Joni A. Mettler
International Journal of Exercise Science: Conference Proceedings
Sarcopenia is a disease that causes adverse muscular changes with aging, and early screening may be critical in prevention and treatment. Past studies have not investigated early detection of sarcopenia risk using questionnaires with older adults who do and do not resistance train. PURPOSE: To examine the sensitivity of two sarcopenia-related risk questionnaires (SarQoL and SARC-F) in detecting group differences between resistance-trained and non-resistance-trained older adults. METHODS: Thirty-eight healthy participants completed a survey assessing sarcopenia-related quality of life (SarQoL) and sarcopenia-related risk factors (SARC-F), after being categorized into two groups based on resistance training status: Old Not Resistance …
Micronized Biocompatible Ceramic Promotes Muscle Derived Il-6 Release In Disuse, Jacob Kendra, Shadi Golpasandi, Alexandra Naman, Mariam Othman, Joo Kim, Rachel Rauth, Khaled Moustafa, John Lawler, Aaron Morton
Micronized Biocompatible Ceramic Promotes Muscle Derived Il-6 Release In Disuse, Jacob Kendra, Shadi Golpasandi, Alexandra Naman, Mariam Othman, Joo Kim, Rachel Rauth, Khaled Moustafa, John Lawler, Aaron Morton
International Journal of Exercise Science: Conference Proceedings
Skeletal muscle is remarkably plastic and undergoes significant muscle wasting in response to mechanical unloading. Chronic bedrest and microgravity conditions promote disuse-induced muscle atrophy and dysfunctional myogenesis. While these pathological effects have been well documented, there are currently no effective therapies to remedy this muscle loss. Time-release ion matrices (TRIM) are amorphous non-crystalline biomaterials that promote regenerative gene transcription when injected in soft tissue. However, the detailed pathways involved in TRIM activated regeneration of skeletal muscle are unexplored. Degenerative and regenerative inflammation are key processes in regeneration. PURPOSE: The purpose of this study was to investigate muscle inflammation in response …
Maximal Isometric Contraction In Skeletal Muscle Of Endurance Trained Rats With Heart Failure, Dillon Harris, Jacob Kendra, Quinten Pigg, Shadi Golpasandi, Aaron Garcia, Daniela Inoue Yoshimura, Aaron Morton, Mariana Janini Gomes
Maximal Isometric Contraction In Skeletal Muscle Of Endurance Trained Rats With Heart Failure, Dillon Harris, Jacob Kendra, Quinten Pigg, Shadi Golpasandi, Aaron Garcia, Daniela Inoue Yoshimura, Aaron Morton, Mariana Janini Gomes
International Journal of Exercise Science: Conference Proceedings
Heart failure (HF) leads to debilitating skeletal muscle dysfunction and atrophy, with exercise tolerance (ET) remaining a crucial indicator of clinical, practical, and mortality-based outcomes. To simulate these comorbidities, monocrotaline (MCT) is a pharmacological agent typically used to aid in replicating experimental models of right ventricle HF. PURPOSE: To investigate the viability of moderate-intensity aerobic training to preserve skeletal muscle function and ameliorate muscle atrophy in MCT-induced HF. METHODS: Thirty 8-week-old male Wistar rats were randomly divided into sedentary (SED) or trained groups (EX; 30min/day treadmill running sessions, 5 days/wk, for 4 weeks) at 60% intensity determined by a maximal …
Cisplatin Blunts Muscle Hypertrophy In Exercise Trained Mice, Jaden Wells, Jainil Daredia, Michael P. Wiggs, Cory Dungan
Cisplatin Blunts Muscle Hypertrophy In Exercise Trained Mice, Jaden Wells, Jainil Daredia, Michael P. Wiggs, Cory Dungan
International Journal of Exercise Science: Conference Proceedings
Cisplatin is a chemotherapeutic agent known to cause skeletal muscle atrophy and cachexia; however, the long-term effect of cisplatin on skeletal muscle adaptations to exercise remains unclear. PURPOSE: The purpose of this study was to assess if prior administration of a clinically relevant cycle of cisplatin blunts exercise adaptations in response to 8 weeks of exercise training. METHODS: Female CD2F1 mice, n = 7-8/group, were treated with 5 mg/kg of cisplatin, or vehicle, once per week for 4 weeks, then given a 4-week washout. Afterwards, mice were singly housed and subjected to either progressive weighted wheel running (PoWeR) …
Quantification Of Mitochondrial Morphology In Whole Muscle, Shadi Golpasandi, Jacob Kendra, Alexandra Naman, Aaron Morton
Quantification Of Mitochondrial Morphology In Whole Muscle, Shadi Golpasandi, Jacob Kendra, Alexandra Naman, Aaron Morton
International Journal of Exercise Science: Conference Proceedings
Mitochondrial dysfunction is well described in many chronic illnesses including musculoskeletal, neurodegenerative, and cardiovascular diseases. In this regard, mitochondrial network morphology has been implicated as a biomarker of disease correlating increased mitochondrial fragmentation to impaired cellular function. While advancements in imaging techniques have furthered our understanding of mitochondrial dynamics in live cells, easily accessible approaches for accurate quantification of in situ, whole muscle mitochondria are lacking. PURPOSE: The purpose of this study was to validate a proof-of-concept method capable of quantifying 3D mitochondrial network morphology in whole mount skeletal muscle and then applying it to mitochondrial morphology analysis in multiple …
Time Course Change Of Muscle Thickness Of The Tibialis Anterior Following Blood Flow Restricted Training, Renee Gebert, Kase J. Pennartz, Sierra M. Washington, Calvin D. Smith, Joshua L. Keller, Amber L. Harris Bozer, Micheal J. Luera
Time Course Change Of Muscle Thickness Of The Tibialis Anterior Following Blood Flow Restricted Training, Renee Gebert, Kase J. Pennartz, Sierra M. Washington, Calvin D. Smith, Joshua L. Keller, Amber L. Harris Bozer, Micheal J. Luera
International Journal of Exercise Science: Conference Proceedings
Traditional resistance training programs recommend training loads of at least 60% 1-repetition maximum (1RM) to stimulate muscle hypertrophy within 3 weeks. Low-load blood flow restricted (BFR) resistance training (RT) has implications in rehabilitation since this modality has shown comparable muscle hypertrophy to high-load RT at intensities as low as 30% 1RM. However, the recommended effects of BFR on muscle size in various musculature throughout an intervention has not been thoroughly examined. PURPOSE: Therefore, the purpose of this investigation is to measure temporal changes in muscle thickness (MT) on the tibialis anterior (TA) throughout 4 weeks of BFR training. METHODS: Thirteen …
Exercise Training With Nasal Breathing Increased Forced Expiratory Volume, Brandon W. Arnold, Jose M. Moris, Christian J. Chang, Ryan Curtis, Kylie Allen, Yunsuk Koh
Exercise Training With Nasal Breathing Increased Forced Expiratory Volume, Brandon W. Arnold, Jose M. Moris, Christian J. Chang, Ryan Curtis, Kylie Allen, Yunsuk Koh
International Journal of Exercise Science: Conference Proceedings
Forced vital capacity (FVC) and its two components [forced expiratory volume during the first second (FEV1.0) and peak expiratory flow (PEF)] denote lung function and can be affected by respiratory compliance. Performing an aerobic exercise with nasal breathing (NB) could be beneficial to elicit more significant FVC improvements compared to combined breathing (CB). PURPOSE: To determine if four weeks of aerobic training with NB could improve FVC more than CB. METHODS: Fourteen young males (age = 20.57 ± 1.22 yrs and BMI = 26.03 ± 3.16 kg/m2) participated in the 4-week supervised exercise intervention, consisting of …
The Effects Of Summer Training On Neuromuscular Performance In Semi-Professional Soccer Players, Jan-Joseph S. Rolloque, Kathryn E. Southall, Ruben Moya, Travis Anderson, Kelly B. Elliott, Kealey J. Wohlgemuth, Mckenzie M. Hare, William M. Adams, Jacob A. Mota, Yasuki Sekiguchi
The Effects Of Summer Training On Neuromuscular Performance In Semi-Professional Soccer Players, Jan-Joseph S. Rolloque, Kathryn E. Southall, Ruben Moya, Travis Anderson, Kelly B. Elliott, Kealey J. Wohlgemuth, Mckenzie M. Hare, William M. Adams, Jacob A. Mota, Yasuki Sekiguchi
International Journal of Exercise Science: Conference Proceedings
While training load (TL) and heat exposure have been shown to independently influence neuromuscular performance, these combined effects have not been fully explored. PURPOSE: To investigate the effects of summer soccer training on neuromuscular performance in semi-professional male soccer players. METHODS: 21 semi-professional male soccer players (age: 21.4 ± 1.9 years; mass: 77.3 ± 7.0 kg; height: 179.2 ± 6.4 cm) visited the laboratory on two occasions separated by three weeks of training. During each visit, ultrasound imaging was collected to determine muscle cross-sectional area (CSA) of the dominant rectus femoris (RF) and vastus lateralis (VL). Maximal voluntary …
The Effects Of Visuospatial Environment On Endurance Treadmill Running Performance, Rpe, And Heart Rate, Barrett M. Knapp, Matthew L. Bierwirth, Edward Merritt
The Effects Of Visuospatial Environment On Endurance Treadmill Running Performance, Rpe, And Heart Rate, Barrett M. Knapp, Matthew L. Bierwirth, Edward Merritt
International Journal of Exercise Science: Conference Proceedings
The psychobiological model of endurance exercise suggests that endurance exercise performance is determined primarily by perception of effort. Previous research has shown that inducing mental and physical fatigue affects rating of perceived exertion (RPE), ultimately affecting endurance performance. However, there is limited literature describing the effect of visual stimuli on RPE. In particular, effects of visuospatial environment, one that elicits thought processes involving visual and spatial awareness, have not been investigated. PURPOSE: The purpose of this study was to investigate the effect of visuospatial environment on endurance exercise performance, RPE, and heart rate (HR). METHODS: 22 participants completed …
Sleep Quality, Mental Health, And Academic Performance Among College Students In South Texas, Sukho Lee, Soyoung Kwon, Shannon Shen, Soojin Yoo, Boram Lim, Vicky Elias
Sleep Quality, Mental Health, And Academic Performance Among College Students In South Texas, Sukho Lee, Soyoung Kwon, Shannon Shen, Soojin Yoo, Boram Lim, Vicky Elias
International Journal of Exercise Science: Conference Proceedings
College life is shaped by a confluence of factors, encompassing heightened academic demands, complex social transitions, and pervasive stress. Amid this dynamic environment, understanding the interplay between sleep quality, mental health, and academic achievement is crucial. PURPOSE: We aimed to evaluate sleep quality and mental health among college students and to examine whether sleep quality was associated with their mental health and academic performance. METHODS: We analyzed data from 343 college students attending universities in South Texas, with information collected in 2022. To assess the participants’ sleep, mental health, and academic performance, we utilized the Pittsburg Sleep Quality Index …
Impact Of Intermittent Hypoxia On Glucose Tolerance In Type 2 Diabetes, Jiahui Zhao, Sten Stray-Gundersen, Sophie Lalande
Impact Of Intermittent Hypoxia On Glucose Tolerance In Type 2 Diabetes, Jiahui Zhao, Sten Stray-Gundersen, Sophie Lalande
International Journal of Exercise Science: Conference Proceedings
Hypoxia increases glucose uptake in skeletal muscle through an insulin-independent pathway. PURPOSE: To assess the impact of intermittent hypoxia on glucose and insulin concentrations during an oral glucose tolerance test in adults with type 2 diabetes. METHODS: Six adults with type 2 diabetes (5 men, age: 51±15 years, HbA1c: 7.3±1.5%) performed a 2-hour oral glucose tolerance test on two separate occasions. On both visits, venous blood samples were collected before and 30, 60, 90, and 120 min after the ingestion of a high-glucose drink. After ingestion of the drink, participants were exposed to either an intermittent hypoxia (IH) protocol, consisting …