Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Western Kentucky University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1891 - 1920 of 43085

Full-Text Articles in Entire DC Network

The Effect Of Lower Extremity Bilateral Asymmetries On Performance In Division I Soccer Players, Shelby Gerner, Raquel J. Cavazos, Chaehyun Byun, Ernesto Balderrama, Austin Riffe, Marshall Tousant, Cheyenne Martinez, Francesca Aquilino, Vipa Bernhardt, Michael D. Oldham, Sarah Mitchell Feb 2024

The Effect Of Lower Extremity Bilateral Asymmetries On Performance In Division I Soccer Players, Shelby Gerner, Raquel J. Cavazos, Chaehyun Byun, Ernesto Balderrama, Austin Riffe, Marshall Tousant, Cheyenne Martinez, Francesca Aquilino, Vipa Bernhardt, Michael D. Oldham, Sarah Mitchell

International Journal of Exercise Science: Conference Proceedings

BACKGROUND: Most soccer players have a preferred leg with which they kick the ball. Depending on the volume of exposure to repeated unilateral movements in training, practice, and games, this could lead to lower extremity bilateral asymmetry (Maloney, 2019). Asymmetries could jeopardize performance (Bell, 2014; Yanci, 2016). PURPOSE: This study examines the relationship between lower muscle mass asymmetries, in collegiate soccer players, and unilateral and bilateral jump performance. METHODS: Participants were 23 NCAA Division 1 female soccer players (19.2 ± 1.1 years, 166.2 ± 6.7 cm, 65.4 ± 8.0 kg). Participants underwent whole body dual exergy X-ray absorptiometry (DEXA, Hologic …

Go to article

Exploring The Language Barrier In Healthcare For Individuals Of Latino Heritage, Heriberto Torres, Michael W. Olson Feb 2024

Exploring The Language Barrier In Healthcare For Individuals Of Latino Heritage, Heriberto Torres, Michael W. Olson

International Journal of Exercise Science: Conference Proceedings

Latinos are the largest minority group in the United States; despite this, they are the least likely ethnic and racial group to visit a healthcare provider. PURPOSE: The purpose of this research is to explore the barriers of individuals of Latino descent seeking healthcare services. The motivation for this research is to bring awareness to the most prevalent barriers and identify possible solutions to the healthcare community to increase the presence of the Latino community in healthcare services.. METHODS: The experimental design is a survey comprising two major types of questions. The first type of questions are aimed …

Go to article

Measures Of Center Of Pressure And Lower Leg Muscle Electromyography During Landing Before And After Plantar Flexor Stretch, Connor Hill, Brittany Coltrain, Michael Olson Feb 2024

Measures Of Center Of Pressure And Lower Leg Muscle Electromyography During Landing Before And After Plantar Flexor Stretch, Connor Hill, Brittany Coltrain, Michael Olson

International Journal of Exercise Science: Conference Proceedings

Static stretching of the plantar flexor muscles is reported to modify neuromuscular responses to external stimuli. However, it is not known how these muscles respond to external loading in an applied task, such as single-leg drops. Further, if mechanical laxity in the plantar flexor muscles is present after stretching of it is unclear how this laxity will influence the muscle activation and movement patterns of the lower extremities. PURPOSE: This study is intended to further explore the response of the lower extremities to plantar flexor muscle stretch in an effort to understand its impact on potential injury. METHODS: …

Go to article

Modified Torque Output And Lower Leg Muscle Electromyography After Passive Stretching, Brittany Coltrain, Connor Hill, Michael W. Olson Feb 2024

Modified Torque Output And Lower Leg Muscle Electromyography After Passive Stretching, Brittany Coltrain, Connor Hill, Michael W. Olson

International Journal of Exercise Science: Conference Proceedings

Increased stretch of the plantar flexor muscles is reported to increase tissue laxity of the tendons and reduces force output, but in other studies the tendon biomechanical properties are not affected and force output is not changed after stretch. PURPOSE: To examine the force output and muscle electromyography activity of lower leg muscles to a prolonged passive stretch. METHODS: Five participants (20.6 ± 1.1 yrs: 1.78 ± 0.1 m:, 80.6 ± 9.9 kg) performed maximal plantar and dorsi flexion isometrically while secured to an isokinetic dynamometer. They were seated upright with ~90 deg hip flexion. The knee was …

Go to article

Biomechanical Assessment Of Footwear And Foot Landing Types In Collegiate Female Runners At Preferred Running Speed, Shivaniba Gohil, Michael W. Olson Feb 2024

Biomechanical Assessment Of Footwear And Foot Landing Types In Collegiate Female Runners At Preferred Running Speed, Shivaniba Gohil, Michael W. Olson

International Journal of Exercise Science: Conference Proceedings

Barefoot and shod running with conditions at heel landing and forefoot landing has implications on running biomechanics. PURPOSE: To investigate the impact of two footwear and two foot landing type conditions on lower limb and lumbar acceleration and kinematics. METHODS: Six collegiate female runners (20.6 ± 1.5 yrs, 58.6 ± 4.7 kg, 1.63 ± 0.05 m) performed running trials on a motorized treadmill. Their averaging running volume was 49.6 ± 31.5 km/wk (range: 16.1 – 80.5 km/wk). Inertial measuring units (IMUs) (370 Hz), containing triaxial accelerometers (1g = 9.81 m/s/s) and gyroscopes (deg/s), were secured on the foot/shoe …

Go to article

Within-Day Reliability Of A Laboratory Metabolic Cart: Implications For Running Economy And Footwear Testing, Jordan Sanders, Dustin P. Joubert Feb 2024

Within-Day Reliability Of A Laboratory Metabolic Cart: Implications For Running Economy And Footwear Testing, Jordan Sanders, Dustin P. Joubert

International Journal of Exercise Science: Conference Proceedings

A metabolic cart measures respiratory gas exchange during exercise. Running economy, a measure of a runner’s oxygen consumption (VO2) at a fixed speed, is an important performance determinant. Economy can be manipulated by changes in footwear, but the ability to detect changes depends on the metabolic cart’s reliability. PURPOSE: Determine the within-day reliability of VO2 measures on a metabolic cart when assessed as single or duplicate trials. METHODS: Four subjects completed 4 x 5-minute running trials in their standard shoes on a treadmill while VO2 was measured with a calibrated metabolic cart (VacuMed Vista …

Go to article

Quantifying The Chronic Thermoregulatory Adaptations In Hot Repair Work Team Members At Vitro Architectural Glass, Breanna Leary Feb 2024

Quantifying The Chronic Thermoregulatory Adaptations In Hot Repair Work Team Members At Vitro Architectural Glass, Breanna Leary

International Journal of Exercise Science: Conference Proceedings

Extended exposure to elevated temperatures and thermal conditions or environments can lead to extreme elevations in the body’s core temperature, heart rate, heat perception, and sweat loss. Subsequently, this leads to a decrease in physical mobility, cognitive function, and alertness, therefore, negatively impacting work efficiency and safety. Due to the demands of their job, members of the hot repair team at Vitro Architectural glass are exposed to high (140 to 160°F) ambient temperatures and physically demanding work on a regular basis. These conditions make normal working activities incredibly challenging, and have resulted in heat related illnesses (HRI) in the past. …

Go to article

Self-Reported Dietary Habits And Barriers Among Rotc Cadets, Sarah E. Johnson, Adriana Gil, Broderick Dickerson, James L. Lilly, Ryan J. Sowinski, Steven E. Martin, Drew E. Gonzalez Feb 2024

Self-Reported Dietary Habits And Barriers Among Rotc Cadets, Sarah E. Johnson, Adriana Gil, Broderick Dickerson, James L. Lilly, Ryan J. Sowinski, Steven E. Martin, Drew E. Gonzalez

International Journal of Exercise Science: Conference Proceedings

Reserve Officer Training Corps (ROTC) cadets' highly demanding lifestyle may negatively impact health and performance. Reports also suggest they are at risk for poor nutrition, i.e., low energy availability or not meeting Military Dietary Reference Intakes. Still, there are limited data on the barriers to proper nutrition and eating habits among ROTC cadets. PURPOSE: This study aimed to investigate the dietary habits of ROTC cadets and the factors or barriers influencing them. METHODS: Cross-sectional data were obtained from 173 ROTC cadets about nutritional habits, factors, and barriers via validated paper-based questionnaires including; the Perceived Barriers to Healthy Eating, …

Go to article

Changes In Cardiovascular Disease Risk Factors Over 2 Years Among Law Enforcement Officers, Lauryn Hawkins, David Torres Jr., Broderick Dickerson, Ryan J. Sowinski, Drew E. Gonzalez, Steven E. Martin Feb 2024

Changes In Cardiovascular Disease Risk Factors Over 2 Years Among Law Enforcement Officers, Lauryn Hawkins, David Torres Jr., Broderick Dickerson, Ryan J. Sowinski, Drew E. Gonzalez, Steven E. Martin

International Journal of Exercise Science: Conference Proceedings

Law enforcement officers (LEOs) have heightened cardiovascular disease (CVD) risk due to the nature of their occupations. Data suggests CVD is 1.7 times more prevalent when compared to the general public. Considering the numerous stressors that LEOs face, which exacerbate their CVD risk, it is important to consider annual monitoring of the risk factors (i.e., obesity, hyperlipidemia, hypertension, etc.). PURPOSE: To examine cardiovascular health parameters in male and female LEOs over two years. METHODS: Twenty-one LEOs (entry demographics: age = 43.5±10.0 yrs; weight = 92.9±15.4 kg; height = 176.8±9.1 cm), from a local police department, were studied from annual clinical …

Go to article

Relationship Between Body Composition, Body Fat Distribution, And Blood Lipids Among Law Enforcement Officers: Part 2, Megan Leonard, Adriana Gil, Broderick Dickerson, Ryan Sowinski, Matthew J. Mcallister, Drew E. Gonzalez, Steven E. Martin Feb 2024

Relationship Between Body Composition, Body Fat Distribution, And Blood Lipids Among Law Enforcement Officers: Part 2, Megan Leonard, Adriana Gil, Broderick Dickerson, Ryan Sowinski, Matthew J. Mcallister, Drew E. Gonzalez, Steven E. Martin

International Journal of Exercise Science: Conference Proceedings

Law enforcement officers (LEOs) have a high-stress occupation, which is prone to cardiovascular disease (CVD). Data suggest a 1.7-fold higher CVD prevalence versus the general public, in addition to 40.5% of LEOs being classified as obese. Emerging evidence suggests that lipid-related atherosclerotic risk may be better captured by including advanced blood lipid panels (i.e., cholesterol particle type and size). However, there needs to be more research regarding the relationship between body composition, body fat distribution, and advanced blood lipid panels concerning CVD risk in LEOs. PURPOSE: To determine if body composition and fat distribution measures correlate with predictive advanced …

Go to article

Knee Joint Degeneration In 22-Year-Old Collegiate Soccer Player, Abigail Nemec, Nathalie Caldwell Feb 2024

Knee Joint Degeneration In 22-Year-Old Collegiate Soccer Player, Abigail Nemec, Nathalie Caldwell

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY: Patient was a 22-year-old DIII soccer player in the left back position. She has experienced chronic bilateral knee pain since her junior year of high school with an insidious onset of injury. She began training to return to play in the summer of 2022 and received multiple types of therapy to alleviate pain including cupping of hamstrings and quadriceps, TFL release, patellar tendon treatment, dry needling, ultrasound, combo, and KT taping for patellar tracking. At the first fall scrimmage, she began experiencing severe pain rated at a 9/10. The patient was referred to an orthopedic physician when …

Go to article

Effect Of Running Surface On 40-Yard Dash Times In High School Football Players, Francis B. Sanchez, John D. Smith Feb 2024

Effect Of Running Surface On 40-Yard Dash Times In High School Football Players, Francis B. Sanchez, John D. Smith

International Journal of Exercise Science: Conference Proceedings

PURPOSE: To allow further examination in how different running surfaces affect sprinting times of 40-yard dashes for high school football players. This can add to the literature due to there being a limited amount of research available for this age group compared to their collegiate and professional counterparts. METHODS: Fifteen participants (ages 17-18 years, 68.9±3.0 inches, 176.4±56.1 lbs) were randomly ordered for grass, turf, and track trials. 40 yards were measured using the Measure app (iPhone) on each surface. The Jawku timing system was stationed at the finish, participants were positioned in a staggered 2-pt stance, and started …

Go to article

Self-Reported Dietary Habits And Barriers Among First Responders, Adriana Gil, Ryan J. Sowinski, Kristen Mackenzie-Shalders, Steven E. Martin, Robin (Rob) Marc Orr, Drew E. Gonzalez Feb 2024

Self-Reported Dietary Habits And Barriers Among First Responders, Adriana Gil, Ryan J. Sowinski, Kristen Mackenzie-Shalders, Steven E. Martin, Robin (Rob) Marc Orr, Drew E. Gonzalez

International Journal of Exercise Science: Conference Proceedings

Firefighters (FFs) and law enforcement officers (LEOs) have a high, lifestyle-related, risk for health conditions such as cardiovascular disease (CVD). Nutritional intervention has been identified as a critical area to improve these risk factors. However, there are limited data regarding the dietary habits and barriers of FFs and LEOs. PURPOSE: This study aimed to investigate the dietary habits of first responders and the factors or barriers influencing them. METHODS: Cross-sectional data were obtained from 21 first responders regarding nutritional habits, factors, and barriers via validated paper-based questionnaires which include; the Perceived Barriers to Healthy Eating, Food Choice Questionnaire, …

Go to article

Impact Of Menstrual Cycle On Submaximal Exercise Vo2 And Critical Power In Active Eumenorrheic Females, Emma W. Ware, Adelle Kanaan, Erika R. Zoellner, Catherine Mbango, Deltra Muoki, Wayne Brewer, Mindy Patterson, Derek Miketinas, Siddhartha Angadi Facsm, Brandon J. Sawyer, Glenn A. Gaesser Facsm, Wesley J. Tucker Feb 2024

Impact Of Menstrual Cycle On Submaximal Exercise Vo2 And Critical Power In Active Eumenorrheic Females, Emma W. Ware, Adelle Kanaan, Erika R. Zoellner, Catherine Mbango, Deltra Muoki, Wayne Brewer, Mindy Patterson, Derek Miketinas, Siddhartha Angadi Facsm, Brandon J. Sawyer, Glenn A. Gaesser Facsm, Wesley J. Tucker

International Journal of Exercise Science: Conference Proceedings

The effects of the menstrual cycle (MC) on exercise metabolism and performance are equivocal. PURPOSE: To investigate whether the MC impacted submaximal exercise oxygen consumption (VO2) and Critical Power (CP) in recreationally active, eumenorrheic females. METHODS: Eight eumenorrheic females (Age: 33±8 y, VO2max: 36.9±3.8 ml/kg/min) completed fasted exercise testing in 3 distinct phases of the MC (early follicular, late follicular, and mid luteal). MC phase was determined using calendar-based counting, ovulation test strips, and confirmed via serum hormones (estrogen and progesterone). For submaximal exercise, participants cycled for 20 min at 50% VO2max while VO2 …

Go to article

Investigating The Protective Role Of Blood Flow Restriction On Delayed Onset Muscle Soreness, Emelee J. Duarte, Edward Merritt Feb 2024

Investigating The Protective Role Of Blood Flow Restriction On Delayed Onset Muscle Soreness, Emelee J. Duarte, Edward Merritt

International Journal of Exercise Science: Conference Proceedings

Delayed onset muscle soreness (DOMS) is frequently experienced 24-48 hours after novel exercise and can prevent people from further engaging in exercise. Minimizing DOMS might provide benefits in this case. Blood flow restriction (BFR) prior to ischemia has been shown to lessen tissue damage experienced, but it is unknown if BFR could decrease DOMS. PURPOSE: To examine if there is BFR before eccentric exercise affects DOMS in normal, healthy adults. METHODS: Eleven healthy adults, ages 18-65, participated in the study. Twenty-four hours prior to an exercise session designed to induce DOMS in the biceps brachii muscles, each participant was subjected …

Go to article

Patient Perceptions Of Pain Before And After Cupping, Adam Woodward, Melissa D. Long Feb 2024

Patient Perceptions Of Pain Before And After Cupping, Adam Woodward, Melissa D. Long

International Journal of Exercise Science: Conference Proceedings

Cupping is an ancient modality that has many benefits. Benefits include improving blood flow, decreasing pain, and increasing function to the applied (Cage et. al., 2020). Research has shown that cupping and its effectiveness can be manipulated by perceptiveness and perceived thoughts about the modality itself, by the clinician and patient (Cage et. al., 2020, Silva et. al. 2019). PURPOSE: The purpose of this study was to collect data that will assist in making clinical decisions regarding cupping as a therapy. The research question that this study aims to answer is: Does cupping therapy decrease patient-reported pain due to …

Go to article

Effect Of Unweighting Using The Lightspeed Lift On Energy Expenditure During Treadmill Walking And Jogging, Faith R. Ramirez, Danyel Valdez, Araceli Martinez, John D. Smith Feb 2024

Effect Of Unweighting Using The Lightspeed Lift On Energy Expenditure During Treadmill Walking And Jogging, Faith R. Ramirez, Danyel Valdez, Araceli Martinez, John D. Smith

International Journal of Exercise Science: Conference Proceedings

Support and unweighting systems, such as AlterG, are often used in rehabilitation and alternative training, which provide an exercise effect that can minimize fitness- or performance-related loss. PURPOSE: The purpose of this study is to explore the effect of using a treadmill bungee support system (Lightspeed lift) on oxygen consumption (energy expenditure), heart rate, and rating of perceived exertion. METHODS: Twenty-four participants (age (yrs)=22.1±2.9, ht (cm)=169.8±10.1, wt (kg)=76.6±13) completed two trials of walking (3mph) and two trials of jogging (5 mph) with and without support. Data was analyzed with IBM SPSS v27 (Chicago IL). Repeated Measures ANOVA were …

Go to article

Traditional Football Training Groups Assessed By Sprint Performance, Kelly Hines, Drew E. Gonzalez, Steven E. Martin, J Bryan Mann Feb 2024

Traditional Football Training Groups Assessed By Sprint Performance, Kelly Hines, Drew E. Gonzalez, Steven E. Martin, J Bryan Mann

International Journal of Exercise Science: Conference Proceedings

Linear speed has historically and continues to be used to predict success in both collegiate and professional football. During a training session to improve on linear speed, players are split into traditional position groups of bigs, big skills, and skills. PURPOSE: Determine if traditional position groups are effective groupings based on 40-yard dash times. METHODS: Subjects (n=495) were members of an institution’s American football team. The subjects completed two trials of a 40-yard sprint assessment starting from a three-point stance with a recovery period of five minutes in between. RESULTS: There were statistical differences between the traditional …

Go to article

Bilateral Acromioclavicular Sprains, Elizabeth Moreno, Melissa D. Long Feb 2024

Bilateral Acromioclavicular Sprains, Elizabeth Moreno, Melissa D. Long

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY: The patient is a 20-year-old linebacker who sustained two AC sprains in the span of nine days. The patient sustained his right AC sprain by tackling with a lowered shoulder. After he was cleared to play from his first injury, he sustained his second AC sprain nine days after. Interestingly, the second shoulder injury occurred by tackling the same opponent with a lowered shoulder. PHYSICAL EXAM: The athletic training staff assessed the right shoulder immediately after injury and tested his shoulder strength. After examination the athletic training staff came to the conclusion that it was an AC sprain, …

Go to article

The Relationship Between Cerebral Pulsatility Index And Indices Of Cerebral Vascular Autoregulation, Ken Perry, Alison Ortiz, John Kolade, Prarthi Shah, R Matthew Brothers Feb 2024

The Relationship Between Cerebral Pulsatility Index And Indices Of Cerebral Vascular Autoregulation, Ken Perry, Alison Ortiz, John Kolade, Prarthi Shah, R Matthew Brothers

International Journal of Exercise Science: Conference Proceedings

Reduced cerebral vascular function/health is a precursor to various cerebral vascular diseases and neurocognitive conditions including stroke, cognitive decline, and Alzheimer’s disease and related dementias. Cerebral vascular pulsatility index (PI) is a measure of cerebral vascular stiffness and is positively correlated with many of the aforementioned conditions. In addition, cerebral autoregulation, the ability to maintain cerebral blood flow relatively constant in the face of changes in arterial blood pressure, is also impaired in many of the aforementioned conditions. However, to the best of our knowledge the relationship between these two commonly assessed parameters of cerebral vascular function/health remains unknown. PURPOSE …

Go to article

Acute Effects Of Different Volumes Of High-Intensity Interval Training And Continuous Aerobic Exercise In Vascular Reactivity, Josue Reyes, Manuel Gomez, Bailey Ramirez, Jorge De Castro, Esther Afangideh, Daniel Conde, Alvaro N. Gurovich Feb 2024

Acute Effects Of Different Volumes Of High-Intensity Interval Training And Continuous Aerobic Exercise In Vascular Reactivity, Josue Reyes, Manuel Gomez, Bailey Ramirez, Jorge De Castro, Esther Afangideh, Daniel Conde, Alvaro N. Gurovich

International Journal of Exercise Science: Conference Proceedings

Endothelial dysfunction is characterized by the unbalance between vasodilatory and vasoconstrictor mechanisms. Furthermore, this is recognized as the initial step to developing cardiovascular disease. Exercise plays an important role in both cardiac rehabilitation and cardiovascular risk prevention. However, some new exercise modalities, such as high-intensity interval training (HIIT), are becoming more popular, and limited information about their effect on the endothelium is available. PURPOSE: to determine what volume of HIIT will improve endothelial function than continuous moderate exercise intensity. METHODS: Six young apparently healthy subjects were recruited for seven laboratory visits. The first visit included a graded exercise test, in …

Go to article

Impact Of Menstrual Cycle On Resting And Postprandial Metabolism In Recreationally Active, Eumenorrheic Females, Adelle Kanaan, Emma Ware, Erika Zoellner, Catherine Mbango, Deltra Muoki, Wayne Brewer, Mindy Patterson, Derek Miketinas, Siddhartha Angadi, Glenn A. Gaesser, Wesley Tucker Feb 2024

Impact Of Menstrual Cycle On Resting And Postprandial Metabolism In Recreationally Active, Eumenorrheic Females, Adelle Kanaan, Emma Ware, Erika Zoellner, Catherine Mbango, Deltra Muoki, Wayne Brewer, Mindy Patterson, Derek Miketinas, Siddhartha Angadi, Glenn A. Gaesser, Wesley Tucker

International Journal of Exercise Science: Conference Proceedings

Changes in estrogen and progesterone across the menstrual cycle impact many biological systems including resting and postprandial metabolism. PURPOSE: To investigate whether menstrual cycle phase impacted resting and postprandial energy expenditure (EE) and substrate utilization in recreationally active, eumenorrheic females. METHODS: In this study, 8 eumenorrheic females (mean±SD age: 33±8 years, BMI: 22.5±2.2 kg/m2; VO2max: 36.9±3.8 ml/kg/min) had resting energy expenditure (REE) and substrate utilization continuously measured with indirect calorimetry for 45 min at rest after an overnight fast, and for 3 h after a mixed meal (490 kcal, 53% carbohydrate, 31% fat, 20% …

Go to article

Responses Of Inflammatory Biomarkers In Circulation And Peripheral Blood Mononuclear Cell To Maximal Exercise With Nasal Breathing, Vineet K. Paidisetty, Jose M. Moris, Yunsuk Koh Feb 2024

Responses Of Inflammatory Biomarkers In Circulation And Peripheral Blood Mononuclear Cell To Maximal Exercise With Nasal Breathing, Vineet K. Paidisetty, Jose M. Moris, Yunsuk Koh

International Journal of Exercise Science: Conference Proceedings

There is growing interest in utilizing nasal breathing (NB) in exercise routines to improve performance. However, there is uncertainty on the impact of such exercise on inflammatory biomarkers in circulation and peripheral blood mononuclear cells (PBMCs), which play a significant role in immune response. PBMCs can undergo functional changes from interactions with exercise-related cytokines, potentially inducing a more efficient immune response. PURPOSE: This study examined the acute responses of pro- and anti-inflammatory cytokines in circulation and PBMCs following a maximal exercise with NB. METHODS: Eleven physically healthy, sedentary men (age = 20.63 ± 1.36, BMI = 26.03 ± 3.16 kg/m …

Go to article

'Super' Shoes Do Not Affect Jump Performance, Marshall Tousant, Francesca Aquilino, Ernesto Balderrama, Chaehyun Byun, Raquel J. Cavazos, Shelby Gerner, Cheyenne Martinez, Austin Riffe, Michael D. Oldham, Vipa Bernhardt Feb 2024

'Super' Shoes Do Not Affect Jump Performance, Marshall Tousant, Francesca Aquilino, Ernesto Balderrama, Chaehyun Byun, Raquel J. Cavazos, Shelby Gerner, Cheyenne Martinez, Austin Riffe, Michael D. Oldham, Vipa Bernhardt

International Journal of Exercise Science: Conference Proceedings

Marathon run times have been dropping rapidly in recent years and many believe that ‘super’ shoes are the reason. ‘Super’ shoes are made with light-weight, highly compliant and resilient midsole foam and a rigid carbon fiber plate. The material used for the foam can store mechanical energy, i.e., compliance, and return the energy, i.e., resilience (Worobets et al, 2014). The carbon fiber plates increase bending stiffness and changes the leverage of the ankle and metatarsophalangeal point, such that the body is propelled upward and forward (Roy & Stefanyshyn, 2006). Indeed, there is evidence that ‘super’ shoes can improve running economy …

Go to article

Driving Entrainment Of Locomotor And Respiratory Systems To Determine Metabolic Efficiency, Michael T. Young, Jennifer M. Yentes, Kuanting Chen Feb 2024

Driving Entrainment Of Locomotor And Respiratory Systems To Determine Metabolic Efficiency, Michael T. Young, Jennifer M. Yentes, Kuanting Chen

International Journal of Exercise Science: Conference Proceedings

Many biological rhythms, including breathing and locomotor rhythms, are interconnected through a phenomenon known as coupling. Locomotor respiratory coupling (LRC) is quantified using a ratio of stride cycles to breaths. For example, an entrained LRC ratio of two strides to one breathing cycle, is a typical ratio humans use while walking. While various ratios have been recorded, previous research has suggested that not deviating from a particular ratio is associated with low energy expenditure. However, recent research challenges the assumption that stronger LRC correlates with lower energy expenditure, but rather, LRC variability is associated with lower energy expenditure. In addition, …

Go to article

Effects Of Endurance Training On Skeletal Muscle Mass And Inflammation In A Rat Model Of Heart Failure, Aaron Garcia, Dillon Harris, Quinten Pigg, Daniela Sayuri Inoue, Mariana Janini Gomes Feb 2024

Effects Of Endurance Training On Skeletal Muscle Mass And Inflammation In A Rat Model Of Heart Failure, Aaron Garcia, Dillon Harris, Quinten Pigg, Daniela Sayuri Inoue, Mariana Janini Gomes

International Journal of Exercise Science: Conference Proceedings

Chronic disease states including heart failure (HF) often lead to reduced physical activity, resulting in disuse and low-level systemic inflammation, which contribute to the decline in muscle mass and function. An important goal of therapy in HF patients is to counteract or prevent the development of skeletal muscle alterations in order to restore a normal functional capacity. Exercise is an established means of improving exercise capacity and quality of life in patients with HF. Therefore, we aimed to evaluate the impact of an endurance program on skeletal muscle mass and inflammation in a rat model of pulmonary arterial hypertension (PAH)-induced …

Go to article

Creatinine Is A Sensitive Blood Biomarker For Muscular Strength And Power In College Students, Ronaldo Garza, Jane Sequeira, Matthew P. Gonzalez, Enrique Rios, Giles J. Andrews Iii, Emily Getreu, Sandor Dorgo, Kelly Cheever, Tianou Zhang Feb 2024

Creatinine Is A Sensitive Blood Biomarker For Muscular Strength And Power In College Students, Ronaldo Garza, Jane Sequeira, Matthew P. Gonzalez, Enrique Rios, Giles J. Andrews Iii, Emily Getreu, Sandor Dorgo, Kelly Cheever, Tianou Zhang

International Journal of Exercise Science: Conference Proceedings

Creatinine is a chemical metabolic product of creatine phosphate from skeletal muscle metabolism, and it is an indicator of muscular functions in athletic and physically active population. However, creatinine’s association with human performance remains yet to be explored. Understanding this correlation may help to identify a sensitive biomarker predicting muscular strength and powers in college students. PURPOSE: To explore the correlations between plasma creatinine and muscle strength and power tests, including broad jump (BJ), vertical jump (VJ), isometric mid-thigh pulls (IMTP) and hand grip strength (HGS). METHODS: 18 college students were recruited (Male=10, Female=8) and blood samples were collected to …

Go to article

Greater Macrovascular But Not Microvascular Function In Hispanic Adults, Justo Perez Iii, Randy Liu, Ruby A. Nyarko, Ethan Joergensen, Jasdeep Kaur Feb 2024

Greater Macrovascular But Not Microvascular Function In Hispanic Adults, Justo Perez Iii, Randy Liu, Ruby A. Nyarko, Ethan Joergensen, Jasdeep Kaur

International Journal of Exercise Science: Conference Proceedings

According to the 2023 AHA Heart Disease and Stroke Statistics update, Hispanics exhibit the highest prevalence of type II diabetes (men: 14.5%, women 12.3%) compared to non-Hispanic White (NHW men: 11.5%, women 7.7%) and Non-Hispanic Black (men: 11.8%, women 13.3%). Endothelial dysfunction is a precursor to cardiovascular diseases including type II diabetes; however, it remains unknown whether healthy asymptomatic Hispanic adults present a reduced endothelial function before the onset of cardiovascular symptoms. Although two previous studies have compared the endothelial function in Hispanic and Non-Hispanic White individuals, these studies included smokers and obese individuals. PURPOSE: To date, no study …

Go to article

Authenticity Of The Ratio Of Inorganic Phosphate To Phosphocreatine As A Marker For Respiratory Stress During A Maximal Aerobic Exercise, Christian J. Chang, Jose M. Moris, Ryan Curtis, Kylie Allen, Vineet K. Paidisetty, Yunsuk Koh Feb 2024

Authenticity Of The Ratio Of Inorganic Phosphate To Phosphocreatine As A Marker For Respiratory Stress During A Maximal Aerobic Exercise, Christian J. Chang, Jose M. Moris, Ryan Curtis, Kylie Allen, Vineet K. Paidisetty, Yunsuk Koh

International Journal of Exercise Science: Conference Proceedings

Under the context of assessing the effects of mitochondrial stress on skeletal muscles, consideration for the ratio of inorganic phosphate to phosphocreatine (Pi:PCr) may be used as a surrogate marker. Furthermore, assessing the systemic Pi:PCr, under states of high metabolic and respiratory demands with reduced oxygen supply (VO2), such as strenuous exercise while only using nasal breathing (NB), might provide valuable information regarding respiratory strain to a given exercise bout. PURPOSE: To determine if the systemic assessment of the Pi:PCr ratio can serve as an indicator of respiratory stress. METHODS: Fourteen young males (age = 20.57 ± 1.22 …

Go to article

The Effect Of Capsaicin On Peak Force And Rate Of Force Developement In Resistance-Trained Men - A Pilot Study, Jalyn Dunlap, Nigel Jiwan, Casey Appell, Andrew Schindel, Jon Berrios, Savannah Adjetey, Mia Uriegas, Hui-Ying Luk Feb 2024

The Effect Of Capsaicin On Peak Force And Rate Of Force Developement In Resistance-Trained Men - A Pilot Study, Jalyn Dunlap, Nigel Jiwan, Casey Appell, Andrew Schindel, Jon Berrios, Savannah Adjetey, Mia Uriegas, Hui-Ying Luk

International Journal of Exercise Science: Conference Proceedings

Capsaicin (CAP) is a robust stimulator of transient receptor potential vanilloid 1 (TRPV1), which promotes calcium (Ca2+) efflux from the sarcoplasmic reticulum and can potentiate cross-bridge formation that has the potential to affect peak force and rate of force development (RFD). However, its effect on overall lower body strength is limited. PURPOSE: To determine the effect of acute CAP consumption on peak force and RFD in resistance-trained men. METHODS: Resistance-trained men (n=5; age: 22±2years, mass: 80.9±11.9kg; height: 177.3±6.6cm) were supplemented either with 2.4mg of CAP or placebo (PL; microcrystalline cellulose). Prior to (PRE) and 45 minutes …

Go to article

First Prev Next Last