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Articles 31 - 60 of 476
Full-Text Articles in Education
Assessing The Reliability Of Stryd 27 For Variable Speed Running, Kathryn A. Lavin, Dustin W. Davis, Matahn Blank, Tashari A. Carballo, Elias M. Malek, Thea Sweder, Eric Lambert, Nicole Argueta, Marcus M. Lawrence, Jeffrey Cowley, James W. Navalta
Assessing The Reliability Of Stryd 27 For Variable Speed Running, Kathryn A. Lavin, Dustin W. Davis, Matahn Blank, Tashari A. Carballo, Elias M. Malek, Thea Sweder, Eric Lambert, Nicole Argueta, Marcus M. Lawrence, Jeffrey Cowley, James W. Navalta
International Journal of Exercise Science: Conference Proceedings
Wearable technology is beneficial when it comes to tracking and optimizing performance. The Stryd 27 is a wearable footpod marketed as being more responsive in measuring power during running than the previous version (Stryd 25). However, the reliability of this newer device to return consistent values has not been determined. PURPOSE: This study aimed to observe whether Stryd 27 gives reliable metrics during variable speed running. METHODS: Sixteen participants (N = 16; 50% female; height = 174.1 ± 8.1 cm; mass = 73.0 ± 12.4 kg) were recruited, each equipped with two Stryd 27 footpods (updated to the same …
The Impact Of Acute Sauna On Young And Middle-Aged Populations, Ari Young, Olivia Leach, Jayson Gifford
The Impact Of Acute Sauna On Young And Middle-Aged Populations, Ari Young, Olivia Leach, Jayson Gifford
International Journal of Exercise Science: Conference Proceedings
Sauna exposure is a common form of whole-body heating therapy. Previous studies done on the older population, suggest a positive correlation between time spent in sauna and cardiovascular health. Heat stress induces changes in the vascular response, but the effects on middle-aged and young populations are unknown. PURPOSE: To determine effects of whole-body heating on vascular resistance and blood pressure in young and middle-aged populations. METHODS: We recruited 18 individuals (10 young; 4 female, male, age= ~24.9yrs and 8 middle-aged; 4 female, 4 male, age= ~55.75yrs). Two T-type thermocouples were placed in the esophagus and vastus lateralis to …
The Effects Of Initiating A 24-Hour Fast With A Low Versus A High Carbohydrate Shake On Pancreatic Hormones In The Elderly: A Randomized Crossover Study, Mckay Knowlton, Landon Deru, Bruce W. Bailey
The Effects Of Initiating A 24-Hour Fast With A Low Versus A High Carbohydrate Shake On Pancreatic Hormones In The Elderly: A Randomized Crossover Study, Mckay Knowlton, Landon Deru, Bruce W. Bailey
International Journal of Exercise Science: Conference Proceedings
Begin PURPOSE: The aim of this study is to understand how the macronutrient composition of the fast-initiating meal influences glucose regulating hormones during, and 24-hours after a 24-hour fast in older, sedentary, and abdominally obese adults. Understanding these outcomes will inform fasting protocols such as time restricted eating and alternate day fasting, which offer potential long-term health benefits. METHODS: We had 16 participants (7 male, 9 female). Each participant completed two 24-hour fasts (water only). In random order, one fast began with a high carb/low fat (HC/LF) shake and the other with a low carbohydrate/high fat shake (LC/HF) (equal calorie, …
Acute Heat Stress On Blood Composition & Body Fluid In Young And Middle-Aged Individuals, Kaitlyn Strong, Olivia Leach, Jayson Gifford
Acute Heat Stress On Blood Composition & Body Fluid In Young And Middle-Aged Individuals, Kaitlyn Strong, Olivia Leach, Jayson Gifford
International Journal of Exercise Science: Conference Proceedings
Sauna therapy has been shown to have benefits to cardiovascular health. Changes in hematocrit, hemoglobin, and plasma volume in response to sauna heating are not well defined in the middle-aged population. This population is of significant interest because of an increased rate of decline in cardiovascular health starting at middle age. PURPOSE: The purpose of this study was to examine the effect of acute sauna exposure on blood composition, specifically the change in plasma volume in young and middle-aged adults. METHODS: 10 young (24.9 ± 4.2 years, 6 male and 4 female) and 8 middle-aged adults (55.6 ± 3.9 …
Co-Ingestion Of Dietary Nitrate And Ascorbic Acid On Nitric Oxide Biomarkers And The Oral Microbiome In Sedentary Hispanic Women, Jeffrey Li, Keonabelle K. Paniagua, Joanna P. Powell, Sean T. Karl, Isabella G. Lincoln, Noelle G. Seekamp-Hicks, Leah T. Stiemsma, Rachel Tan
Co-Ingestion Of Dietary Nitrate And Ascorbic Acid On Nitric Oxide Biomarkers And The Oral Microbiome In Sedentary Hispanic Women, Jeffrey Li, Keonabelle K. Paniagua, Joanna P. Powell, Sean T. Karl, Isabella G. Lincoln, Noelle G. Seekamp-Hicks, Leah T. Stiemsma, Rachel Tan
International Journal of Exercise Science: Conference Proceedings
Nitric oxide bioavailability increases following nitrate supplementation wherein oral microbiota facilitate the metabolism and absorption of nitrate. However, few studies have examined if co-ingestion of nitrate with antioxidants can further elevate nitric oxide bioavailability. Moreover, our understanding on how the oral microbiome responds to nitrate supplementation is limited, especially in women. PURPOSE: To examine the effects of ingesting dietary nitrate and ascorbic acid independently and concurrently on markers of nitric oxide bioavailability and oral microbiota species. METHODS: Twelve sedentary women of Hispanic descent (mean ± SD: age 20 ± 1 years; body mass 74 ± 15 kg; height …
Acute Beetroot Juice Ingestion Increases Nitric Oxide Bioavailability Without Changing Oral Microbial Composition In Healthy Young Women, Alexandra C. Zink, Courtney Merrill, Jeffrey Li, Luka K. Sharabidze, Leah T. Stiemsma, Rachel Tan
Acute Beetroot Juice Ingestion Increases Nitric Oxide Bioavailability Without Changing Oral Microbial Composition In Healthy Young Women, Alexandra C. Zink, Courtney Merrill, Jeffrey Li, Luka K. Sharabidze, Leah T. Stiemsma, Rachel Tan
International Journal of Exercise Science: Conference Proceedings
Dietary nitrate supplementation can elicit beneficial health and exercise performance effects. Oral microbiota are critical for the metabolism of exogenously consumed nitrate; however, limited data are available on the influence of dietary nitrate ingestion on bacterial taxa and in women. PURPOSE: To investigate if acute dietary nitrate ingestion alters the oral microbiota in young healthy women compared to a nitrate-depleted placebo. METHODS: In a randomized double-blinded crossover design, fifteen recreationally active women (mean ± SD: age 20 ± 1 years; body mass 63 ± 10 kg; height 1.68 ± 0.1 m) participated in two conditions to ingest nitrate-rich …
The Effect Of Menstruation Duration On The Achilles Tendon Cross-Sectional Area In Female Ballet Dancers, Kaitong Li, Wayne Johnson, Steven Allen, Shayla Bott, Chris Dillon, Joshua Sponbeck, Camille Nguyen Jones, Annie Smedley
The Effect Of Menstruation Duration On The Achilles Tendon Cross-Sectional Area In Female Ballet Dancers, Kaitong Li, Wayne Johnson, Steven Allen, Shayla Bott, Chris Dillon, Joshua Sponbeck, Camille Nguyen Jones, Annie Smedley
International Journal of Exercise Science: Conference Proceedings
Females are more likely to suffer Achilles tendon injury that consequently leads to more complications including pain or tendon rupture, and experiencing fewer benefits from therapeutic interventions. There is a lack of knowledge on how estrogen, which may limit collagen synthesis, can affect tendon health and growth. PURPOSE: The objective of this study is to examine the relationship between menstruation duration and cross-sectional area (CSA) of the Achilles tendon over a 5-month period of intensive dance training. We hypothesize the female dancers who reported a menstruation duration of 1-3 days will have the smallest average tendon CSA in comparison …
Does Hand Use Affect Metabolic Measures During Pickleball, Tashari A. Carballo, Matahn Blank, Bryson Carrier, Samantha Cruz, Jae Bovell, Dustin W. Davis, Thea Sweder, Elias M. Malek, Setareh Zarei, James W. Navalta
Does Hand Use Affect Metabolic Measures During Pickleball, Tashari A. Carballo, Matahn Blank, Bryson Carrier, Samantha Cruz, Jae Bovell, Dustin W. Davis, Thea Sweder, Elias M. Malek, Setareh Zarei, James W. Navalta
International Journal of Exercise Science: Conference Proceedings
Pickleball is one of the fastest up and coming sports in the United States today. This low impact sport has the combined elements of Ping-Pong, tennis, and badminton. Pickleball can be played with the dominant hand (DH) or non-dominant (NDH). Though many people enjoy the sport, it is under-researched. The metabolic demands of pickleball are not clear, nor is whether the demands differ by the hand used. PURPOSE: The aim of this study was to determine the differences in metabolic measures while playing pickleball with the DH and NDH. METHODS: Eleven people were recruited via convenience sampling and participated (2 …
Stryd 25 Vs. Stryd 27: Comparing Running Metrics Between A Predecessor And “The Next Gen Stryd”, Dustin W. Davis, Matahn A. Blank, Tashari A. Carballo, Elias M. Malek, Kathryn A. Lavin, Thea S. Sweder, Eric A. Lambert, Nicole Argueta, Marcus M. Lawrence, Jeffrey Cowley, James W. Navalta
Stryd 25 Vs. Stryd 27: Comparing Running Metrics Between A Predecessor And “The Next Gen Stryd”, Dustin W. Davis, Matahn A. Blank, Tashari A. Carballo, Elias M. Malek, Kathryn A. Lavin, Thea S. Sweder, Eric A. Lambert, Nicole Argueta, Marcus M. Lawrence, Jeffrey Cowley, James W. Navalta
International Journal of Exercise Science: Conference Proceedings
Wearable technology has claimed the top spot in the Worldwide Survey of Fitness Trends in all but two years since 2016. A popular wearable among runners is the Stryd power meter. The company markets its latest model, the Stryd 27, as 5x more responsive in measuring running power. Yet, it is unclear whether the new model performs differently than its predecessor. PURPOSE: This study aimed to compare running metrics of the Stryd 25 and Stryd 27 in self-paced and interval runs. METHODS: Participants consented (N = 16; 50% female; height = 174.1 ± 8.1 centimeters [cm]; mass …
Greater Motor Evoked Torque In Aclr Patients During Force Reproduction Task Compared To Health Controls, Anisha A. Patel, Christine E. Phelps, Haley Huntington, Lana J. Kayali, Caitlyn E. Olshausen, Anika Khurana, Tina Boluordi, Yong Woo An
Greater Motor Evoked Torque In Aclr Patients During Force Reproduction Task Compared To Health Controls, Anisha A. Patel, Christine E. Phelps, Haley Huntington, Lana J. Kayali, Caitlyn E. Olshausen, Anika Khurana, Tina Boluordi, Yong Woo An
International Journal of Exercise Science: Conference Proceedings
Persistent quadriceps dysfunction following anterior cruciate ligament reconstruction (ACLR) may lead to further pathological complication. Quadriceps weakness has been linked to corticospinal excitability. However, it remains unclear how this altered corticospinal excitability contributes to ACLR patients during knee strength tasks when compared to healthy controls. PURPOSE: The purpose of this study was to examine force reproduction strategies during isometric knee extension between ACLR patients and healthy controls. METHODS: Five ACLR (20.40±1.67yrs, 72.12±12.87kg, 171.07±7.40cm) participants and five matched healthy controls (21.00±1.73yrs, 65.77±13.61kg, 166.62±11.99cm) performed an isometric force reproduction task. They were instructed to maintain 10% of maximal voluntary isometric contraction (MVIC) …
Social Jetlag Inhibits Exercise-Induced Adaptations In The Heart And Alters Markers Of Mitochondrial Dynamics, Graham R. Mcginnis, Michael B. Dial, Elias M. Malek, Greco Neblina, Austin Cooper, Nikoleta Vasileva, Tanner Erwin
Social Jetlag Inhibits Exercise-Induced Adaptations In The Heart And Alters Markers Of Mitochondrial Dynamics, Graham R. Mcginnis, Michael B. Dial, Elias M. Malek, Greco Neblina, Austin Cooper, Nikoleta Vasileva, Tanner Erwin
International Journal of Exercise Science: Conference Proceedings
Social jetlag (SJL), or the shifting of behavior and sleep times between weekdays and weekends, is a pervasive form of circadian rhythm disruption that affects nearly 70% of the population to some extent. The magnitude of SJL can be determined by the difference in the mid-sleep phase between weekends and weekdays. Higher levels of SJL have been associated with lower levels of cardiorespiratory fitness, and increased incidence of cardiometabolic disease, which may be due, in part, to mitochondrial dysfunction. However, no studies to date have evaluated the effects of long term SJL on cardiac mitochondrial dynamics. PURPOSE: To determine …
Effects Of Partial Hot Water Immersion On Postprandial Blood Glucose And Heart Rate Variability, Jeff Moore, Michael Buono
Effects Of Partial Hot Water Immersion On Postprandial Blood Glucose And Heart Rate Variability, Jeff Moore, Michael Buono
International Journal of Exercise Science: Conference Proceedings
The acute effects of heat therapy on glycemic markers oppose those of the chronic effects. While the postprandial glucose response is exaggerated during whole body heat exposure, chronic heat exposure lowers HbA1c. Additionally, the acute effects of heat therapy differ depending on the amount of body exposed to heat. Heating a single hand does not increase fasting glucose and lowers postprandial glucose. The opposing effects of partial and whole body heat exposure could be mediated in part from increased sympathetic nervous system (SNS) activity following heat stress. While heating the body increases muscular blood flow and glucose uptake, SNS activation …
Evaluation Of Caloric Expenditure Metrics Of Garmin Instinct Wearable Technology Devices During Pickleball, Matahn A. Blank, Dustin W. Davis, Bryson Carrier, Tashari A. Carballo, Jae K. Bovell, Thea Sweder, Samantha Cruz, Zhihao Yu, Setareh Zarei, James W. Navalta
Evaluation Of Caloric Expenditure Metrics Of Garmin Instinct Wearable Technology Devices During Pickleball, Matahn A. Blank, Dustin W. Davis, Bryson Carrier, Tashari A. Carballo, Jae K. Bovell, Thea Sweder, Samantha Cruz, Zhihao Yu, Setareh Zarei, James W. Navalta
International Journal of Exercise Science: Conference Proceedings
While tennis and badminton may present a moderate learning curve for beginners, pickleball, a similar racquet sport that has become increasingly popular in recent years, offers a notably simpler play-style that can be more easily adapted for new players. This sport has emerged during a time when wearable technology devices, such as the Garmin Instinct, have become commonly used to estimate physiological measures among individuals engaging in physical activity. Yet, there is little research that examines the validity and reliability of this technology during pickleball. PURPOSE: The purpose of this study was to assess the reliability and validity of …
Validation Of Vertical Force Measures During Hop Tasks Using Pressure Insoles, Andrew Cho, Erin Cagle, Sylwia Lipior, Susan Sigward
Validation Of Vertical Force Measures During Hop Tasks Using Pressure Insoles, Andrew Cho, Erin Cagle, Sylwia Lipior, Susan Sigward
International Journal of Exercise Science: Conference Proceedings
Assessment of vertical ground reaction forces (vGRF) during jumping and landing tasks is commonly used as a tool to quantify limb loading following injury. While embedded force plates are the current gold standard, cost and poor ecological validity limit their feasibility for assessment of loading during sport agility tasks. Wearable pressure insoles can measure plantar pressure wirelessly and may provide an alternative for on-field assessments. Previous studies have assessed the validity of insoles with varying results. Few studies have considered tasks that require both vertical and horizontal forces similar to those required for agility tasks. This may have important implications …
Differential Contribution Of Cardiac And Peripheral Blood Flow To Metaboreceptor-Mediated Pressor Responses In Autism Spectrum Disorder, Matthew Pizano Gomez, Gabriel B. Carlota, Stephanie S. Wang, Areum K. Jensen
Differential Contribution Of Cardiac And Peripheral Blood Flow To Metaboreceptor-Mediated Pressor Responses In Autism Spectrum Disorder, Matthew Pizano Gomez, Gabriel B. Carlota, Stephanie S. Wang, Areum K. Jensen
International Journal of Exercise Science: Conference Proceedings
Young adults with Autism Spectrum Disorder (ASD) experience a higher prevalence of hypertension than the general population. Abnormal blood pressure (BP) response to acute exercise is seen in hypertension. BP response evoked during exercise is the outcome of a central interaction between neural inputs such as the exercise pressor reflex. However, it is unclear if this neurocardiovascular interaction is altered differently to regulate BP during exercise in ASD. PURPOSE: To determine whether contributions of cardiac and peripheral blood flow to metaboreceptor-mediated pressor responses are different during exercise in ASD. METHODS: 21 young adults with and without ASD completed the study. …
Does Neuromuscular Fatigue Occur From One Doubles Pickleball Match?, Matthew Ritchey, Margaret Falknor, George Beckham, Eric Martin
Does Neuromuscular Fatigue Occur From One Doubles Pickleball Match?, Matthew Ritchey, Margaret Falknor, George Beckham, Eric Martin
International Journal of Exercise Science: Conference Proceedings
Pickleball is an emerging sport that is continuing to gain popularity among people of all ages. Little research has been completed on the performance aspects of the game. PURPOSE: Lower body force production is an important aspect of any sport. A countermovement jump is a useful way to test that characteristic. Acute decreases in force production are an indicator of fatigue. No previous research of force production and fatigue has been completed on pickleball. Therefore the purpose of this study was to test countermovement jump performance before and after a match of doubles pickleball to determine if neuromuscular fatigue …
Teaching Current And Future Professionals Techniques For Lay Communication: Validation Study Of Published Training Material, Jafra Thomas, Jasmine C. Wong, Solana R. Martin, Yi Sheng Wu
Teaching Current And Future Professionals Techniques For Lay Communication: Validation Study Of Published Training Material, Jafra Thomas, Jasmine C. Wong, Solana R. Martin, Yi Sheng Wu
International Journal of Exercise Science: Conference Proceedings
Thomas et al. (2023), developed two mock physical activity promotion (PAP) material, which university students (and others) could practice critiquing and revising using the suitability assessment of materials (SAM) protocol. Their objective, however, was to produce mock material at two reading grade levels (11th & 8th RGL), meaning they did not compute suitability scores for other sub/main areas (eg, font size, literacy demand, respectively). PURPOSE: The purpose of the present study was to (1) establish trustworthy baseline data in other SAM sub/main areas for students to compare their own scores to (2) compare mock material SAM scores to one …
Walking With Blood Flow Restriction Elicits Postexercise Hypotension In Prehypertensive Individuals, Dae Sik Song, Geoffrey Dorsett, Justine Wills, Iridian Valdivia, Isaac Sumaran, Jong-Kyung Kim
Walking With Blood Flow Restriction Elicits Postexercise Hypotension In Prehypertensive Individuals, Dae Sik Song, Geoffrey Dorsett, Justine Wills, Iridian Valdivia, Isaac Sumaran, Jong-Kyung Kim
International Journal of Exercise Science: Conference Proceedings
It is well documented that prehypertension is associated with increased risk of developing into the future hypertension and cardiovascular events. Exercise is well known as one of the best nonpharmacological treatments for prehypertension to prevent future hypertension development. Blood flow restriction (BFR) training have been known to improve health-related components of physical fitness such as body composition, muscular strength and endurance, and aerobic capacity. However, there is still paucity of research that BFR exercise induces postexercise hypotension. PURPOSE: accordingly, the goal of this study was to assess that BFR exercise is more effective in reducing blood pressure (BP) compared to …
Handgrip Strength, Pinch Grip Strength, And Screen Time In College-Age Adults And Older Adults, Zarmina Amin, Galilea Gutierrez, Larissa True
Handgrip Strength, Pinch Grip Strength, And Screen Time In College-Age Adults And Older Adults, Zarmina Amin, Galilea Gutierrez, Larissa True
International Journal of Exercise Science: Conference Proceedings
Smartphones have become an essential part of daily life for people of all ages, serving as a vital tool for communication, information, and entertainment. However, excessive smartphone use can lead to addiction-like behavior and musculoskeletal issues, with the extent and characteristics of problematic usage varying by age. PURPOSE: The purpose was two-fold: (1) Investigate the differences in handgrip strength (HGS), pinch grip strength (PGS), and total screen time between college-age individuals (18-to-25 years old; n = 50) and older adults (50+ years old; n = 50); (2) Explore correlations between HGS, PGS, and total screen time in college-age individuals …
Investigation Into Lower Extremity Accommodation During Lbppt Submaximal Running, Ciya Clyde, Miles Mercer, Julia Freedman Silvernail
Investigation Into Lower Extremity Accommodation During Lbppt Submaximal Running, Ciya Clyde, Miles Mercer, Julia Freedman Silvernail
International Journal of Exercise Science: Conference Proceedings
Running is a popular sport but often leads to overuse injuries due to repetitive ground reaction forces (GRF) impacting the lower extremities. Lower Body Positive Pressure Treadmills (LBPPT) have gained popularity in clinical and research environments for their ability to reduce the runners’ bodyweight, consequently lowering the GRFs. PURPOSE: To investigate whether there is an accommodation period present during LBPPT submaximal running for lower body GRFs. METHODS: Participants (n =3; 1 male, 2 females; age: 26 ± 1.63 years; mass: 63.73 ± 7.77kg; height: 1.64 ± 0.11m) were recruited to complete three 15-minute bodyweight support (BWS) conditions at …
A Novel Waveform To Extract Exercise Gas Exchange Response Dynamics: The Chirp Waveform, Michele Girardi, Michael A. Roman, Janos Porszasz, William W. Stringer, Carrie Ferguson, Harry B. Rossiter, Richard Casaburi
A Novel Waveform To Extract Exercise Gas Exchange Response Dynamics: The Chirp Waveform, Michele Girardi, Michael A. Roman, Janos Porszasz, William W. Stringer, Carrie Ferguson, Harry B. Rossiter, Richard Casaburi
International Journal of Exercise Science: Conference Proceedings
Characterizing exercise gas exchange response dynamics reveals important information about physiological control processes and cardiopulmonary dysfunction. However, current methods for extracting exercise response dynamics typically use multiple step-wise transitions, limiting applicability of this technique. PURPOSE: We designed a new protocol (chirp waveform) to extract exercise gas exchange response dynamics in a single visit. We tested the hypothesis that gas exchange response dynamics extracted from chirp forcing would be similar to those extracted from step-wise transitions. METHODS: Thirty-one participants (14 young healthy, 7 older healthy, and 10 patients with chronic obstructive pulmonary disease) visited the laboratory on three occasions. …
Low Back Demand Of Equipment Carriage Tasks In Golf, Guanrong Cai, Jacob Cho, Yunsheng Zou, Jordan Cannon, George Salem
Low Back Demand Of Equipment Carriage Tasks In Golf, Guanrong Cai, Jacob Cho, Yunsheng Zou, Jordan Cannon, George Salem
International Journal of Exercise Science: Conference Proceedings
Low back injury is a common concern in golfers and caddies. The literature often points to the biomechanics of the golf swing as the major contributing factor; however, golfers and caddies can regularly walk upward of 10,000 steps on uneven terrain while carrying equipment, which can contribute to the cumulative load on the low back. PURPOSE: To examine the low back biomechanical demands during golf equipment carriage and pick-up tasks. METHODS: Sixteen golfers (11M/5F, 27.4±3.5yrs) participated in 3D motion capture of a golf bag pick-up task and 3 walking tasks (1. unloaded walking [UW], 2. unilateral carrying on …
The Effect Of Aicar-Induced Ampk Activation On Gene Expression In Sarcopenic Muscle, Daniel M. Rasch, Steven D. Dray, Jouber Dos Santos, Shalene E. Wilcox, David M. Thomson
The Effect Of Aicar-Induced Ampk Activation On Gene Expression In Sarcopenic Muscle, Daniel M. Rasch, Steven D. Dray, Jouber Dos Santos, Shalene E. Wilcox, David M. Thomson
International Journal of Exercise Science: Conference Proceedings
The loss of muscle mass and function (sarcopenia) afflicts 11-74% of all aging adults, with prevalence increasing with age. Exercise training is clearly effective in preventing or attenuating sarcopenia. The cellular mechanisms of exercise’s protective effects are not entirely clear, but AMP-activated protein kinase (AMPK) is thought to play an important role, in part by regulating gene expression. PURPOSE: To determine the effect of chronic pharmacological AMPK activation on skeletal muscle gene expression in sarcopenic muscle. METHODS: 24-month-old C57Bl/6J mice received either one acute injection or chronic daily saline injections of the AMPK-activating drug AICAR for 31 days. …
Effects Of Chronic Grape Seed Extract Supplementation On Muscle Metaboreflex In Young Prehypertensive Individuals, Dongnyeuck Seo, Carmen Wardwell, Dae Sik Song, Joslyn Leage, Isaac Sumaran, Jong-Kyung Kim
Effects Of Chronic Grape Seed Extract Supplementation On Muscle Metaboreflex In Young Prehypertensive Individuals, Dongnyeuck Seo, Carmen Wardwell, Dae Sik Song, Joslyn Leage, Isaac Sumaran, Jong-Kyung Kim
International Journal of Exercise Science: Conference Proceedings
Previously, our laboratory demonstrated that acute grape seed extract (GSE) substantially reduced mean arterial pressure (MAP) in response to static exercise (SE) and post exercise muscular ischemia (PEMI) in normotensive young adults. However, limited evidence has reported regarding the potential beneficial effects of this extract on blood pressure (BP) induced by the muscle metaboreflex (MMR) activation in prehypertensive individuals. PURPOSE: The aim of this study was to compare effects of 7 days of GSE supplementation and placebo (PL) on hemodynamic response to SE and PEMI. METHODS: Subjects were randomly assigned via a double-blind, cross-over design to receive either GSE (600 …
Comparing Knee Kinetics And Muscular Activity Between The Barbell Squat And Flywheel Squat In Recreationally Trained Females, Justin Lam, Janice Ko, Sean Yonemori, Jenny Nguyen, Kevin Valenzuela, Kurt A. Escobar, Joshua A. Cotter
Comparing Knee Kinetics And Muscular Activity Between The Barbell Squat And Flywheel Squat In Recreationally Trained Females, Justin Lam, Janice Ko, Sean Yonemori, Jenny Nguyen, Kevin Valenzuela, Kurt A. Escobar, Joshua A. Cotter
International Journal of Exercise Science: Conference Proceedings
Previous literature has supported flywheel (FW) training with inducing muscular size and strength comparable to resistance training with free weights. However, it remains unclear how the biomechanical demands of these two training methods differ regarding reducing the risk of load-dependent injuries. PURPOSE: With the growing population of female astronauts, this study aimed to compare knee joint kinetics and muscle activation when squatting to full depth on the barbell back (BB) squat and a gravity-independent FW device utilizing technology to be deployed in future long-term space missions. METHODS: Twenty recreationally trained females (22.3 ± 2.7 yrs, 1.6 ± 0.1 m, 59.8 …
Effects Of 7 Days Of Grape Seed Extract Supplementation On Heart Rate Recovery In Young Prehypertensive Individuals, Isaac Sumaran, Dongnyeuck Seo, Carmen Wardwell, Dae Sik Song, Joslyn Leage, Jong-Kyung Kim
Effects Of 7 Days Of Grape Seed Extract Supplementation On Heart Rate Recovery In Young Prehypertensive Individuals, Isaac Sumaran, Dongnyeuck Seo, Carmen Wardwell, Dae Sik Song, Joslyn Leage, Jong-Kyung Kim
International Journal of Exercise Science: Conference Proceedings
Evidence suggested heart rate recovery (HRR) is a useful maker to evaluate cardiac sympathetic function. Prehypertension is characterized by overactive sympathetic output and dysfunction of cardiac parasympathetic activity and associated with delayed HRR. Even though dietary supplementation with grape seed extract (GSE) elicits the production of nitric oxide, limited evidence has reported regarding the potential beneficial effects of this extract on HRR. Purpose: The aim of this study was to compare effects of 7 days of GSE supplementation and placebo (PL) on HRR for 5 min after graded exercise. Methods: Subjects were randomly assigned via a double-blind, cross-over design to …
Frontal Plane Range Of Motion Differences In Unilateral And Bilateral Battle Rope Sets: A Pilot Study, Janice Ko, Sean Yonemori, Kevin Valenzuela
Frontal Plane Range Of Motion Differences In Unilateral And Bilateral Battle Rope Sets: A Pilot Study, Janice Ko, Sean Yonemori, Kevin Valenzuela
International Journal of Exercise Science: Conference Proceedings
Battle rope exercises are commonly used among cross-fitters to build overall muscular strength and cardiorespiratory endurance. Although this training method is physically demanding, no studies have examined the frontal plane movements in the lower extremities when performing battle ropes exercises in their different variations. PURPOSE: The objective of this research was to compare the frontal plane range of motion (ROM) along with the peak joint angles of the ankle, knee, and hip when performing bilateral and unilateral battle ropes exercises. METHODS: Participants with at least six months of resistance training experience performed four sets of bilateral and unilateral battle ropes …
Multiple Stress Fractures And Low Energy Availability In Female Recreational Runners, Malorie Wilwand, Marissa Miles, Kelly Pritchett, Robert Pritchett, Abigail Larson
Multiple Stress Fractures And Low Energy Availability In Female Recreational Runners, Malorie Wilwand, Marissa Miles, Kelly Pritchett, Robert Pritchett, Abigail Larson
International Journal of Exercise Science: Conference Proceedings
Low energy availability (LEA) is the underlying factor for Relative Energy Deficiency in Sport which includes a facet of bone health. Stress fractures (SF) are common injuries among runners. The prevalence of coexisting LEA and multiple SF in recreational runners is unknown. PURPOSE: The purpose is 1) to assess the prevalence of multiple SF and risk of LEA among recreational female runners 2) to compare current eating disorders, body weight dissatisfaction, and restrictive eating behaviors between females with a history of SF and those with ≤ 1 SF. METHODS: Female noncompetitive, recreational runners (running > 10 miles/week, 18-25 years …
The Effects Of Unilateral And Bilateral Battle Rope Exercise On The Lower Extremity Joint Force: A Pilot Study, Sean A. Yonemori, Janice Ko, Kevin Valenzuela
The Effects Of Unilateral And Bilateral Battle Rope Exercise On The Lower Extremity Joint Force: A Pilot Study, Sean A. Yonemori, Janice Ko, Kevin Valenzuela
International Journal of Exercise Science: Conference Proceedings
The battle rope exercise recently has increased its popularity due to cross fit gyms implementing it into the workout programs. Individuals use this workout to strengthen their upper body, however it is unknown how different modalities of using the battle ropes affects the lower extremity joint force required to stabilize the body. PURPOSE: To examine the effects of unilateral and bilateral battle ropes exercises on lower extremity joint force. METHODS: Subjects performed four bilateral battle rope trials and four unilateral battle rope trials. The trials consisted of twenty seconds of continuous activity with three minutes of rest in between …
The Effects Of Fatigue On Center Of Pressure Measures During Front Lunges, Logan C. Randall, Michele Leblanc
The Effects Of Fatigue On Center Of Pressure Measures During Front Lunges, Logan C. Randall, Michele Leblanc
International Journal of Exercise Science: Conference Proceedings
Front lunges are a common exercise in strength and conditioning programs. Extensive research on front lunge biomechanical movement exists previously, however, the existing research lacks information regarding fatigue or center of pressure (COP). PURPOSE: The aim of this study was to determine the effect of fatigue on COP behavior in front lunges. METHODS: Participants were ages 18 to 30 and recreationally active. Participants were guided through sufficient warm up and practiced the lunge movement, barefoot, at the cadence of 15 repetitions/minute. Step length was assigned as the length from their greater trochanter to lateral malleolus. Participants completed front lunges …