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Articles 1 - 30 of 321
Full-Text Articles in Medicine and Health Sciences
Perceived Fatigue And Physical Activity Enjoyment Following Indoor And Outdoor Moderately Heavy Superset Resistance Training, Korina K. Ziegler, Aaron Mckenzie, Wesley Ziegler, Spencer Maxwell, Bryson Carrier, Charli Aguilar, Alexandra Routsis, Talon Thorton, Jae Bovell, Setareh Zarei, Devin Green, Kathryn Lei A. Lavin, Amanda Hawkes, Jeffrey Cowley, Merrill Funk, James W. Navalta Facsm, Marcus M. Lawrence
Perceived Fatigue And Physical Activity Enjoyment Following Indoor And Outdoor Moderately Heavy Superset Resistance Training, Korina K. Ziegler, Aaron Mckenzie, Wesley Ziegler, Spencer Maxwell, Bryson Carrier, Charli Aguilar, Alexandra Routsis, Talon Thorton, Jae Bovell, Setareh Zarei, Devin Green, Kathryn Lei A. Lavin, Amanda Hawkes, Jeffrey Cowley, Merrill Funk, James W. Navalta Facsm, Marcus M. Lawrence
International Journal of Exercise Science: Conference Proceedings
ACSM has again determined that resistance training (RT) and outdoor activities are two of the top ten worldwide fitness trends for 2023. We previously found that RT outdoors had a significantly lower perception of effort (RPE) compared to indoor RT, despite no physiological differences in heart rate (HR) and energy expenditure (EE). However, no study has examined other feelings during RT in indoor or outdoor settings. PURPOSE: To determine how indoor or outdoor environments effect perceptions of fatigue and physical activity enjoyment following RT in recreationally resistance trained adults. METHODS: Twenty-three adult participants (n=10 female, n=13 male) completed …
Repetition Count Concurrent Validity Of Various Garmin Wrist Watches During Light Circuit Resistance Training, Wesley F. Ziegler, Bryson Carrier, Charli D. Aguilar, David Pearce, Jocelyn M Graffius, Brynlie Ellingford, Wyatt Fullmer, Jeffrey Cowley, Merrill Funk, Nathaniel Bodell, James W. Navalta Facsm, Marcus M. Lawrence
Repetition Count Concurrent Validity Of Various Garmin Wrist Watches During Light Circuit Resistance Training, Wesley F. Ziegler, Bryson Carrier, Charli D. Aguilar, David Pearce, Jocelyn M Graffius, Brynlie Ellingford, Wyatt Fullmer, Jeffrey Cowley, Merrill Funk, Nathaniel Bodell, James W. Navalta Facsm, Marcus M. Lawrence
International Journal of Exercise Science: Conference Proceedings
Wearable technology and strength training with free weights are two of the top 5 fitness trends worldwide. However, minimal physiological research has been conducted on the two together and none have measured the accuracy of devices measuring repetition counts across exercises. PURPOSE: The purpose of this study was to determine the concurrent validity of four wrist-worn Garmin devices, Instinct (x2), Fenix 6 Pro, and Vivoactive 3, to record repetition counts while performing 4 different exercises during circuit resistance training. METHODS: Twenty participants (n=10 female, n=10 male; age: 23.2 ± 7.7 years) completed this study. Participants completed 4 circuits …
Paroxysmal Atrial Fibrillation In A Life-Long Endurance Athlete: A Descriptive Case Study, Timothy Curry, Scott N. Drum
Paroxysmal Atrial Fibrillation In A Life-Long Endurance Athlete: A Descriptive Case Study, Timothy Curry, Scott N. Drum
International Journal of Exercise Science: Conference Proceedings
The diagnosis of atrial fibrillation (AF) in lifelong endurance athletes occurs at a greater incidence over a lifetime vs the undertrained, general population. In fact, the more intense an aerobic-oriented person trains or races and over a greater amount of time, the higher the diagnosis of general cardiac arrhythmias. PURPOSE: Therefore, the primary aim was to observe the cumulative effects of life-long endurance training (since the age of 10-yrs old) and the yearly occurrences of paroxysmal AF (PAF) in an otherwise healthy, 53-yr-old male. METHODS: The complete health history of a 53-yr-old male (ht: 1.83 m, wt: 72.7 kg, …
The Effectiveness Of Running Power As A Metric Of Exercise Intensity During Running Interval Training, Eric A. Lambert, Dustin W. Davis, Matahn Blank, Tashari A. Carballo, Elias M. Malek, Kathryn Lei A. Lavin, Thea Sweder, Nicole Argueta, Marcus M. Lawrence, James W. Navalta, Jeffrey Cowley
The Effectiveness Of Running Power As A Metric Of Exercise Intensity During Running Interval Training, Eric A. Lambert, Dustin W. Davis, Matahn Blank, Tashari A. Carballo, Elias M. Malek, Kathryn Lei A. Lavin, Thea Sweder, Nicole Argueta, Marcus M. Lawrence, James W. Navalta, Jeffrey Cowley
International Journal of Exercise Science: Conference Proceedings
Wearable power meters are increasingly popular among runners with Coros and Stryd offering running power as a real-time, trackable of a metric. PURPOSE: This study compared running power (RP) to physiological measures, heart rate (HR) and oxygen consumption (VO2), across high and low intensity running intervals. METHODS: Thirteen adult participants (n = 6 male; height = 174.9 ± 6.9 cm; mass = 72.5 ± 12.0 kg) were equipped with a Stryd 27 RP meter, a Polar H10 HR monitor, and a Cosmed K5 portable metabolic unit. Participants’ self-selected RP was obtained during a 10-min run on …
Lumbopelvic Stability During A Single Leg Step Down Predicts Elbow Varus Torque During Baseball Pitching, Zachary J. Dezee, Adam J. Barrack, Kayla Bucci, Ryan J. Zerega, Rachel K. Straub, Andrew R. Karduna, Lori A. Michener
Lumbopelvic Stability During A Single Leg Step Down Predicts Elbow Varus Torque During Baseball Pitching, Zachary J. Dezee, Adam J. Barrack, Kayla Bucci, Ryan J. Zerega, Rachel K. Straub, Andrew R. Karduna, Lori A. Michener
International Journal of Exercise Science: Conference Proceedings
During a baseball pitch, energy is transferred from the lower extremities through the lumbopelvic junction to produce ball velocity. Reduced lumbopelvic stability has been associated with elbow injury in pitchers, and commonly ulnar collateral ligament (UCL) tears. The primary biomechanical mechanism of UCL tears is high elbow varus torque. Understanding how decreased lumbopelvic stability influences the development of elbow varus torque could identify risk factors of UCL elbow injury. PURPOSE: Characterize the predictive ability of lumbopelvic stability on elbow varus torque during a baseball pitch. METHODS: NCAA Division 1 baseball players (N=44; 19.6+1.3yrs) participated. Pitchers threw ten fastballs from a …
Rating Of Perceived Exertion, Average Heart Rate, And Energy Expenditure Following Indoor And Outdoor Moderately Heavy Superset Resistance Training, Spencer M. Maxwell, Bryson Carrier, Charli Aguilar, Korina Ziegler, Aaron Mckenzie, Wesley Zeigler, Alexandra Routsis, Talon Thorton, Setareh (Star) Zarei, Devin Green, Jae Bovell, Kathryn A. Lavin, Amanda Hawkes, Jeffrey C. Cowley, Merrill Funk, James W. Navalta Facsm, Marcus M. Lawrence
Rating Of Perceived Exertion, Average Heart Rate, And Energy Expenditure Following Indoor And Outdoor Moderately Heavy Superset Resistance Training, Spencer M. Maxwell, Bryson Carrier, Charli Aguilar, Korina Ziegler, Aaron Mckenzie, Wesley Zeigler, Alexandra Routsis, Talon Thorton, Setareh (Star) Zarei, Devin Green, Jae Bovell, Kathryn A. Lavin, Amanda Hawkes, Jeffrey C. Cowley, Merrill Funk, James W. Navalta Facsm, Marcus M. Lawrence
International Journal of Exercise Science: Conference Proceedings
Our lab recently found that light intensity circuit resistance training outdoors had a significantly lower perception of effort (RPE) compared to indoor resistance training, despite no physiological differences in heart rate and energy expenditure. However, no study has examined other intensities or set schemes in differing environmental settings. PURPOSE: To determine how indoor or outdoor environments effect rating of perceived exertion (RPE) following light and moderately heavy intensity superset resistance training in recreationally resistance trained adults. METHODS: Twenty-three adult participants completed this study (n=10 female, n=13 male; age: 26.1±8.8 yrs; height: 172.2±9.5 cm; mass: 73.4±18.7 kg; RT experience: …
Heart Rate And Energy Expenditure Concurrent Validity Of Identical Garmin Wrist Watches During Moderately Heavy Resistance Training, Talon Thornton, Wesley Ziegler, Spencer Maxwell, Aaron Mckenzie, Alexandra Routsis, Korina Ziegler, Bryson Carrier, Charli Aguilar, Devin Green, Jae Bovell, Kathryn A. Lavin, Setareh (Star) Zarei, Jeffrey C. Cowley, Amanda Hawkes, Merrill Funk, James W. Navalta Facsm, Marcus M. Lawrence
Heart Rate And Energy Expenditure Concurrent Validity Of Identical Garmin Wrist Watches During Moderately Heavy Resistance Training, Talon Thornton, Wesley Ziegler, Spencer Maxwell, Aaron Mckenzie, Alexandra Routsis, Korina Ziegler, Bryson Carrier, Charli Aguilar, Devin Green, Jae Bovell, Kathryn A. Lavin, Setareh (Star) Zarei, Jeffrey C. Cowley, Amanda Hawkes, Merrill Funk, James W. Navalta Facsm, Marcus M. Lawrence
International Journal of Exercise Science: Conference Proceedings
Consistent with previous years, ACSM has found that wearable technology and resistance training (RT) are two of the top 5 fitness trends in 2023. Our lab recently found that wrist-worn devices, such as Garmin Instinct, are neither valid nor reliable at measuring average or maximal heart rate (HR) or estimating energy expenditure (EE) following light intensity circuit RT. We postulated that the errors may have been due to the device’s algorithms assuming higher intensity during RT. PURPOSE: The purpose of this study was to determine the concurrent validity of identical Garmin Instinct wrist-watches to record valid measures of average …
Bodyfat As A Predictor Of The Peace Office Physical Aptitude Test In Police Cadets, Angelo Mangione, Mattison Maret, Bridget Melton, Anthony Acevedo, Zachary Zeigler
Bodyfat As A Predictor Of The Peace Office Physical Aptitude Test In Police Cadets, Angelo Mangione, Mattison Maret, Bridget Melton, Anthony Acevedo, Zachary Zeigler
International Journal of Exercise Science: Conference Proceedings
Body composition is a measurement that is rarely assessed before police cadets enter the academy. The Peace Office Physical Aptitude Test (POPAT) is a required assessment for police cadets. PURPOSE: This pilot study aims to determine if body composition, upper body strength, and lower body power can predict performance on the POPAT in police cadets. METHODS: Maricopa County Sheriff’s Office (MCSO) cadets were asked to complete the handheld grip test to assess upper extremity strength, vertical jump to assess lower extremity power, and body fat percentage (%BF) using an ultrasound machine. Fat-Free Mass Index (FFMI) was used to …
Bmi Superior To Fat-Free Mass Index And Fat Mass Index For Predicting Arterial Stiffness In College Students, Amanda Callaghan, Kennedy Kerbs, Kyndal Downing, Zachary Zeigler
Bmi Superior To Fat-Free Mass Index And Fat Mass Index For Predicting Arterial Stiffness In College Students, Amanda Callaghan, Kennedy Kerbs, Kyndal Downing, Zachary Zeigler
International Journal of Exercise Science: Conference Proceedings
Arterial stiffness is a significant predictor of cardiovascular disease and mortality. Body mass index (BMI) has been used to predict cardiovascular disease outcomes but does not consider fat and lean mass. Fat mass index (FMI) and fat-free mass index (FFMI) may be superior to BMI in predicting arterial stiffness because it considers body composition. PURPOSE: This study aims to determine if FFMI and FMI are superior to BMI at predicting arterial stiffness in college students. METHODS: Participants came into the exercise physiology lab, signed consent, and then had anthropometric measurements of height and weight taken, as well as …
Is A Two-Day Cardiopulmonary Exercise Test A Valid Tool For The Diagnosis Of Post-Exertional Malaise In Long Covid?, Chiara Gattoni, Asghar Abbasi, Carrie Ferguson, Carly Heffernan, Elizabeth Dinnen, Olivia Heutlinger, Long-Co Nguyen, Charles W. Lanks, Thomas W. Decato, Richard Casaburi, Harry B. Rossiter, William W. Stringer
Is A Two-Day Cardiopulmonary Exercise Test A Valid Tool For The Diagnosis Of Post-Exertional Malaise In Long Covid?, Chiara Gattoni, Asghar Abbasi, Carrie Ferguson, Carly Heffernan, Elizabeth Dinnen, Olivia Heutlinger, Long-Co Nguyen, Charles W. Lanks, Thomas W. Decato, Richard Casaburi, Harry B. Rossiter, William W. Stringer
International Journal of Exercise Science: Conference Proceedings
A two-day cardiopulmonary exercise testing (CPET) protocol (maximal ramp-incremental cycle test repeated 24hr apart) in myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) patients has suggested that day-2 performance is decreased relative to day-1. This difference has been attributed to post-exertional malaise (PEM), suggesting the two-day CPET as a protocol to investigate PEM in Long COVID (LC) patients. PURPOSE: We aimed to investigate any effects of PEM on exercise performance and cardiorespiratory and perceptual responses to a two-day CPET in LC patients to determine whether the day-1 CPET would impair performance, cardiorespiratory responses or perceptions of exercise at day-2. METHODS: Fifteen LC patients …
Validity And Reliability Of The Garmin Instinct In Measuring Heart Rate During Pickleball, Setareh Zarei, Samantha Cruz, Tashari A. Carballo, Bryson Carrier, Dustin W. Davis, Jae Bovell, Thea Sweder, Matahn Blank, Elias M. Malek, James W. Navalta
Validity And Reliability Of The Garmin Instinct In Measuring Heart Rate During Pickleball, Setareh Zarei, Samantha Cruz, Tashari A. Carballo, Bryson Carrier, Dustin W. Davis, Jae Bovell, Thea Sweder, Matahn Blank, Elias M. Malek, James W. Navalta
International Journal of Exercise Science: Conference Proceedings
Playing a racquet sport called pickleball is increasing in popularity every day in the United States. Garmin is a popular brand that manufactures wearable fitness trackers capable of measuring heart rate (HR). Because HR is a common way to determe exercise intensity, the validity and reliability of wearables to provide accurate HR during pickleball is important. PURPOSE: This study aimed to analyze and assess the validity and reliability of HR from the Garmin Instinct vs. Polar H10 (criterion) during pickleball. METHODS: Eleven adults (2 female, 8 male, 1 prefer not to disclose; age = 28.1 ± 9.2 years; …
Stress And Eating Behaviors Pre- And Post Covid-19 Pandemic Declaration In A Sample Of College-Aged Adults, Megan Bratetic, Michelle Nguyen, Makenna Peterson, Anthony Acevedo, Zachary Zeigler
Stress And Eating Behaviors Pre- And Post Covid-19 Pandemic Declaration In A Sample Of College-Aged Adults, Megan Bratetic, Michelle Nguyen, Makenna Peterson, Anthony Acevedo, Zachary Zeigler
International Journal of Exercise Science: Conference Proceedings
Purpose: This study compared stress and eating behaviors pre- and post-COVID-19 pandemic in college students. METHODS: This was a non-experimental comparative study. Participants were invited to the laboratory for a single visit to measure eating behaviors and stress indicators. Four instruments were used in this study: The Weight and Lifestyle Inventory questionnaire, the Mindfulness Eating Questionnaire, the Three-Factor Eating Questionnaire, and the Perceived Stress Scale. Independent t-test and a two-way ANOVA were used to compare participants who were tested before the COVID-19 pandemic declaration and after. RESULTS: N=151 (n=81 male, n=70 female) participants completed pre-covid testing, and a separate group, …
Bicycle Handlebar Width Does Not Affect Spirometry, Ventilation, Or Gas Exchange, Matthew J. Fahey, Daniel T. Cannon
Bicycle Handlebar Width Does Not Affect Spirometry, Ventilation, Or Gas Exchange, Matthew J. Fahey, Daniel T. Cannon
International Journal of Exercise Science: Conference Proceedings
Bicycle fit may affect comfort, aerodynamics, efficiency, ventilation, and power generation. Handlebars determine how the rider interacts with the bicycle. A wide range of handlebar widths are commercially available, but it is unclear if the resultant position affects lung function, ventilation, gas exchange, or efficiency. PURPOSE We aimed to measure the effects of handlebar widths on ventilation, gas exchange, spirometry, and comfort during moderate constant power exercise. METHODS Twenty-four recreationally active adults completed the study (32 ± 5 yrs., 175 ± 9 cm, 74 ± 12 kg, 8 women, 16 men). Participants completed three moderate constant power bouts of exercise …
Validity And Reliability Of The Polar Oh1 Biceps-Band Heart Rate Monitor During Pickleball, Jamaal K. Bovell, Dustin W. Davis, Bryson Carrier, Setareh Zarei, Tashari A. Carballo, Matahn Blank, Thea Sweder, Samantha Cruz, Elias M. Malek, James W. Navalta
Validity And Reliability Of The Polar Oh1 Biceps-Band Heart Rate Monitor During Pickleball, Jamaal K. Bovell, Dustin W. Davis, Bryson Carrier, Setareh Zarei, Tashari A. Carballo, Matahn Blank, Thea Sweder, Samantha Cruz, Elias M. Malek, James W. Navalta
International Journal of Exercise Science: Conference Proceedings
Pickleball is making a name for itself as one of the fastest growing sports in the United States. According to the Association of Pickleball Professionals (APP), 14% of Americans 18 years and over (~36.5 million people) played pickleball at least once in 12 months. With almost half of the total players planning to play more often in the upcoming months, pickleball is certain to continue its ascension. It is unclear if paying intensity can be gauged accurately and reliably with heart rate (HR) measurements from biceps-band monitors. PURPOSE: This study aimed to determine the validity and reliability of the Polar …
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 …