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

Digital Commons Network™

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

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 568981 - 569010 of 5157249

Full-Text Articles in Entire DC Network

The Influence Of Different Modes Of Tabata On Post-Exercise Metabolic Recovery, Leroy K. Bolden, Vivyan Gonzalez, Tiffani Neuville, James Rowe Feb 2023

The Influence Of Different Modes Of Tabata On Post-Exercise Metabolic Recovery, Leroy K. Bolden, Vivyan Gonzalez, Tiffani Neuville, James Rowe

International Journal of Exercise Science: Conference Proceedings

PURPOSE: Evaluate post-exercise metabolic recovery of individuals who perform Tabata as 1) full body calisthenics (FB) and 2) treadmill running (TR) and compare those responses to when no exercise is performed (rest). METHODS: Recreationally active men (M) (n=9) and women (W) (n=16) (age=22.1±1.8yrs; body mass=70.2± 14.0 kg; body fat%=28.9±6.9; BMI=24.2±3.8) performed each of 3 bouts on separate days with at least 7 days in between each bout. Rest consisted of sitting quietly for 25 minutes. FB was performing 25 minutes of repeated cycles of body calisthenics at vigorous effort for 20 seconds followed with 10 seconds of rest. TR involved …

Go to article

No Differences In Strength Improvements Following Low- Or High-Volume Resistance Training, Katie G. Kennedy, Neil A. Schwarz, Jacob A. Mota, Ryan J. Colquhoun Feb 2023

No Differences In Strength Improvements Following Low- Or High-Volume Resistance Training, Katie G. Kennedy, Neil A. Schwarz, Jacob A. Mota, Ryan J. Colquhoun

International Journal of Exercise Science: Conference Proceedings

Resistance training is a widely used modality for improving muscular strength and reducing risks of injury, which is vital to counteracting physical declines associated with aging and poor health. Despite this, the minimal effective training dose for improving muscular strength has yet to be fully elucidated. PURPOSE: The purpose of this study was to examine the role of training volume (number of sets per session) on muscular strength changes following 8 weeks of progressive resistance training. METHODS: Fourteen and 12 trained males (Mean±SD; Age: 23±3y) and females (Age: 20±1y) participated in 8 weeks of supervised 3x/week progressive resistance …

Go to article

Reliability Of Differing Muscle Size And Quality Analysis Techniques, Mckenzie M. Hare, Kealey J. Wohlgemuth, Malia N.M. Blue, Jacob A. Mota Feb 2023

Reliability Of Differing Muscle Size And Quality Analysis Techniques, Mckenzie M. Hare, Kealey J. Wohlgemuth, Malia N.M. Blue, Jacob A. Mota

International Journal of Exercise Science: Conference Proceedings

Brightness-mode (B-mode) ultrasonography is a popular tool to examine anatomical cross-sectional area (ACSA) and echo intensity (EI). Muscle ACSA and EI provide valuable insight into muscle function due to their unique mechanisms which influence performance. Manually analyzing ultrasound images potentially increases variability which may increase error, thus decreasing the reliability of manual image analysis. Recently an automated program was created to improve reliability and reduce the time of ultrasound image analysis. PURPOSE: The purpose of this study was to investigate the reliability of manual compared to automatic ultrasound analyses of muscle cross-sectional area and echo intensity. METHODS: Twenty-two …

Go to article

Obesity Contributes To An Attenuated Spontaneous Baroreflex Sensitivity In Ucd-Type 2 Diabetic Rats, Milena Samora, Yu Huo, Richard K. Mcculler, Suchit Chidurala, James Graham, Kimber L. Stanhope, Peter J. Havel D.V.M., Ph.D., Audrey J. Stone, Michelle L. Harrison Feb 2023

Obesity Contributes To An Attenuated Spontaneous Baroreflex Sensitivity In Ucd-Type 2 Diabetic Rats, Milena Samora, Yu Huo, Richard K. Mcculler, Suchit Chidurala, James Graham, Kimber L. Stanhope, Peter J. Havel D.V.M., Ph.D., Audrey J. Stone, Michelle L. Harrison

International Journal of Exercise Science: Conference Proceedings

Previous studies suggest impaired baroreflex function in individuals with type 2 diabetes (T2D), which is critically important since it leads to an increased risk for adverse cardiovascular events. Currently, the underlying mechanisms remain poorly understood. The baroreflex, essential for maintaining blood pressure homeostasis, can also be influenced by several risk factors, one of which is obesity. Obesity has been shown to markedly decrease baroreflex sensitivity (BRS) in non-diabetic individuals, and given that the majority of T2D patients are obese, it is likely that impairment in baroreflex function in T2D is mainly driven by obesity. PURPOSE: To investigate the effects …

Go to article

Sex Differences In The Accuracy Of Wut (Weight, Urine Color, Thirst) Diagrams Assessing Hydration Status, Jan-Joseph Rolloque, Marcos Keefe, Nigel Jiwan, Casey Appell, Madison Pomroy, Huiying Luk, Yasuki Sekiguchi Feb 2023

Sex Differences In The Accuracy Of Wut (Weight, Urine Color, Thirst) Diagrams Assessing Hydration Status, Jan-Joseph Rolloque, Marcos Keefe, Nigel Jiwan, Casey Appell, Madison Pomroy, Huiying Luk, Yasuki Sekiguchi

International Journal of Exercise Science: Conference Proceedings

The WUT (Weight, Urine Color, Thirst) Venn diagram is a practical method to assess hydration status using percent body mass loss (%BML), urine color (UCOL), and thirst perception (TP). However, sex differences and the accuracy of WUT diagrams between males and females has not yet been investigated. PURPOSE: To observe sex differences in the accuracy of WUT diagrams assessing hydration status. METHODS: 8 males [M] (age: 21 ± 3; mass: 76.3 ± 15.6 kg) and 5 females [F] (age: 22 ± 2; mass: 60.5 ± 13.6) visited the laboratory twice a day (morning (7:00am-9:00am) and afternoon …

Go to article

Impact Of Habitual Water Intake On Muscle Quality And Total Body Water-A Pilot Study, Kelly B. Elliott, Alan T. Ky, Casey Appell, Ryan Dunn, Nigel Jiwan, Cherish Dunlap, Ganesh C. Tallam, Hui-Ying Luk, Yasuki Sekiguchi Feb 2023

Impact Of Habitual Water Intake On Muscle Quality And Total Body Water-A Pilot Study, Kelly B. Elliott, Alan T. Ky, Casey Appell, Ryan Dunn, Nigel Jiwan, Cherish Dunlap, Ganesh C. Tallam, Hui-Ying Luk, Yasuki Sekiguchi

International Journal of Exercise Science: Conference Proceedings

Proper hydration is essential for critical health and performance functions, such as muscle function and body fluid balance. The effect of acute hydration status has been studied on health and muscle performance; however, the effect of habitual water intake on muscle quality and total body water between high and low consumption has not been examined. PURPOSE: To determine the impact of habitual water intake on muscle quality and total body water. METHODS: Eleven women (age: 27.6±7.9 years; mass: 60.3±10.8 kg) provided a five-day dietary food log to categorize them into HIGH or LOW daily total water intake (TWI). …

Go to article

Agreement Between Body Mass Index And Percent Body Fat In Resistance Trained Men And Women, Christine Harrison, Grant Tinsley, Ariane Hollub Secrest, Colin Wilborn, Lem Taylor Feb 2023

Agreement Between Body Mass Index And Percent Body Fat In Resistance Trained Men And Women, Christine Harrison, Grant Tinsley, Ariane Hollub Secrest, Colin Wilborn, Lem Taylor

International Journal of Exercise Science: Conference Proceedings

National health organizations report on the prevalence of obesity utilizing statistics based upon Body Mass Index (BMI), a noninvasive, anthropometric measurement used for weight classification. Though the limitations of the BMI formula are well known, it is still commonly used in clinical settings due to the ease of calculation using only weight and height (kg/m2). Dual-Energy X-Ray Absorptiometry (DXA) is a criterion method for body composition estimation. PURPOSE: The purpose of this analysis was to assess the agreement between BMI classification and measured percent body fat (PBF) via DXA in a resistance-trained (RT) population. METHODS: DXA …

Go to article

Age-Related Differences In Handgrip Strength Characteristics And Vertical Jump Performance, Kayla P. Sisneros, Pratibha S. Maurya, Evan Johnson, Ty B. Palmer Feb 2023

Age-Related Differences In Handgrip Strength Characteristics And Vertical Jump Performance, Kayla P. Sisneros, Pratibha S. Maurya, Evan Johnson, Ty B. Palmer

International Journal of Exercise Science: Conference Proceedings

Handgrip strength characteristics, such as peak force and rate of force development (RFD), have been shown to be significantly associated with the performance capacities of the lower-body musculature. Declines in lower-body performance are commonly reported as a consequence of aging. However, few studies have investigated the influence of age on handgrip peak force and RFD. PURPOSE: The purpose of this study was to examine age-related differences in handgrip peak force and RFD between young and older women and the relationships of these characteristics with lower-body performance during a vertical jump (VJ) test. METHODS: Twenty young (age = 21 ± 3 …

Go to article

Understanding Self-Talk On A Mirror Tracing Task: A Qualitative Inquiry, Carissa M. Palacios, David Cutton Ph.D., Amber M. Shipherd Feb 2023

Understanding Self-Talk On A Mirror Tracing Task: A Qualitative Inquiry, Carissa M. Palacios, David Cutton Ph.D., Amber M. Shipherd

International Journal of Exercise Science: Conference Proceedings

Gaining a better understanding of self-talk (ST) or interior dialogue while performing a novel psychomotor task (mirror tracing task) was explored using a phenomenological approach in which recorded results were compared to the ST data of diverse research disciplines. PURPOSE: The purpose of this study was to more fully understand ST (what) and its reported functions (why) while performing a fine motor task. METHODS: Participants, asked to complete three trials of the task, were presented with two open-ended questions regarding their inherent ST before, during and after each trial of the task: (1) self-reported ST, “What specific ST are …

Go to article

Handgrip Peak Force And Rate Of Force Development Measurements: Are They Reliable And Do They Correlate With Vertical Jump Power?, Pratibha S. Maurya, Kayla P. Sisneros, Evan Johnson, Ty B. Palmer Feb 2023

Handgrip Peak Force And Rate Of Force Development Measurements: Are They Reliable And Do They Correlate With Vertical Jump Power?, Pratibha S. Maurya, Kayla P. Sisneros, Evan Johnson, Ty B. Palmer

International Journal of Exercise Science: Conference Proceedings

Handgrip peak force and rate of force development (RFD) measurements have been shown to be effective parameters at characterizing the strength capacities of numerous muscle groups, including those of the lower extremities. However, the reliability of these measurements and their relationship with vertical jump (VJ) peak power remains uncertain. PURPOSE: The purpose of this study was to examine the reliability of handgrip peak force and RFD measurements. A secondary aim was to determine if these measurements are correlated with the peak power produced during a VJ test. METHODS: Twenty young, healthy women (age = 21 ± 3 years) …

Go to article

Vascular Insulin Resistance May Contribute To Health Disparities In People From The Rio Grande Valley, Philippe J. Dentino, Ryan P. Bialaszewski, Yu Lun Tai, Ryan D. Russell Feb 2023

Vascular Insulin Resistance May Contribute To Health Disparities In People From The Rio Grande Valley, Philippe J. Dentino, Ryan P. Bialaszewski, Yu Lun Tai, Ryan D. Russell

International Journal of Exercise Science: Conference Proceedings

Microvascular blood flow (MBF) increases postprandially in skeletal muscle in response to insulin to aid in myocyte glucose delivery. This MBF response is considered a measure of vascular insulin resistance and can be impaired with altered meal composition, obesity, type 2 diabetes mellitus (T2DM), and insulin resistance. Current studies indicate this MBF response to a mixed meal challenge (MMC) may identify vascular insulin resistance before typically-presenting serum biomarkers of insulin resistance, as it displays more sensitivity than when using an oral glucose challenge (OGC). However, it is unknown if healthy adults residing in the Rio Grande Valley (RGV), an area …

Go to article

Postprandial And Fasting Lipopolysaccharide Levels In Healthy Hispanic Residents Of Southeast Texas With Positive Family History Of Type 2 Diabetes, Amanda J. Wheeler, Yu Lun Tai, Smaran Marupudi, Ryan D. Russell Feb 2023

Postprandial And Fasting Lipopolysaccharide Levels In Healthy Hispanic Residents Of Southeast Texas With Positive Family History Of Type 2 Diabetes, Amanda J. Wheeler, Yu Lun Tai, Smaran Marupudi, Ryan D. Russell

International Journal of Exercise Science: Conference Proceedings

PURPOSE: Healthy people with a family history (FH+) of type 2 diabetes (T2D) display impaired metabolic and microvascular function prior to glucose intolerance, and are at greater risk for developing T2D. While mechanisms to explain this disparity are lacking, it is possible that intestinal permeability plays a role, as it is also linked with insulin resistance, glucose intolerance, and chronic inflammation. Lipopolysaccharides (LPS) act as an outer membrane component of gram-negative bacteria in intestines and play a role in inflammation and chronic disease when in circulation, thus serving as a surrogate measure of intestinal permeability. However, the link between FH+ …

Go to article

The Effects Of Music On Muscle Fatigue And Strength In Individuals With Previous Knee Injuries, Bryan J. Pizarro, Amber M. Shipherd, Robert Kowalsky Feb 2023

The Effects Of Music On Muscle Fatigue And Strength In Individuals With Previous Knee Injuries, Bryan J. Pizarro, Amber M. Shipherd, Robert Kowalsky

International Journal of Exercise Science: Conference Proceedings

Music can be used during physical activity for a variety of ergogenic, psychological, and psychophysical benefits. Listening to one’s preferred genre of music has been found to optimize arousal and increase motivation during an exercise bout that can lead to performance improvements. Rehabilitation patients often struggle to adhere to their rehabilitation for a variety of reasons, including lack of enjoyment, lack of progress, or even increased pain or fatigue. Therefore, incorporating music into a rehabilitation setting could help patients improve their strength and reduce fatigue, thus improving rehabilitation adherence. PURPOSE: To examine the effects of music preference on muscle fatigue …

Go to article

Comparison Of Walking Mechanics Between Manual And Automated Iv Poles, Katie N. Harris, John Krzyszkowski, Luke Chowning, James Yang, Lamidi Kolawole, Debajyoti Pati, Seyedehnastaran Hashemi, John R. Harry Feb 2023

Comparison Of Walking Mechanics Between Manual And Automated Iv Poles, Katie N. Harris, John Krzyszkowski, Luke Chowning, James Yang, Lamidi Kolawole, Debajyoti Pati, Seyedehnastaran Hashemi, John R. Harry

International Journal of Exercise Science: Conference Proceedings

Many older adults fall while admitted in the hospital. The increased incidence of hospital falls is associated with intravenous (IV) pole manipulation when maneuvering through the room. PURPOSE: To determine whether an automated IV pole can decrease fall risk in older adults. METHODS: Twelve healthy older adults (> 65 years) performed three walking trials for each of three walking conditions (normal walking [no IV pole], walking with a manual IV pole, and walking with an automated IV pole [robot]). Each walking trial consisted of three phases: walking up to a door (entry), opening the door (door), and walking …

Go to article

The Effect Of Geranylgeraniol On Satellite Cells Myogenic State In Type 2 Diabetic Rats, Nigel C. Jiwan, Casey R. Appell, Raoul Sterling, Chwan-Li Shen, Hui-Ying Luk Feb 2023

The Effect Of Geranylgeraniol On Satellite Cells Myogenic State In Type 2 Diabetic Rats, Nigel C. Jiwan, Casey R. Appell, Raoul Sterling, Chwan-Li Shen, Hui-Ying Luk

International Journal of Exercise Science: Conference Proceedings

Type 2 Diabetes (T2D) is associated with chronic inflammation, which can contribute to impaired satellite cells (SC) myogenic state that may result in muscle atrophy. Geranylgeraniol (GGOH) has shown to prevent muscle atrophy, reduce inflammatory markers, and increase SC content; however, the effect of GGOH on SC myogenic state in T2D rats is not known. PURPOSE: To examine the effects of GGOH on SC myogenic state and muscle cross-sectional area (CSA) in T2D rats. METHODS: 21 Sprague-Dawley rats were fed a control diet (CON; n=7), a high-fat diet with 35 mg/kg of streptozotocin (HFD; n=7), and HFD with 800mg/kg …

Go to article

Randomized Pilot Study Examining The Impact Of An Online, Non-Restrictive Diet Among Working Adults, Diana Kolb, Stephanie Silveira Dr., Ec Synkowski Feb 2023

Randomized Pilot Study Examining The Impact Of An Online, Non-Restrictive Diet Among Working Adults, Diana Kolb, Stephanie Silveira Dr., Ec Synkowski

International Journal of Exercise Science: Conference Proceedings

There is a growing interest in health promotion emphasizing diet quality, specifically increased intake of fruits and vegetables, as a more effective approach for improving health outcomes. Recent studies examined ways to decrease fatigue in the workplace, some showing improved diet quality helps performance in the work environment. PURPOSE: This randomized pilot study aimed to test an online, non-restrictive diet among a sample of full-time employees at the University of North Texas. The primary research question asked if the diet program improved general health indicators: body fat percentage(BF%), body weight, and waist circumference(WC). METHODS: Twenty-three participants were randomized …

Go to article

Morning Versus Afternoon Body Mass In Free-Living Or Controlled Euhydration, Madi M. Pomroy, Marcos Keefe, Nigel Jiwan, Jan-Joseph S. Rolloque, Casey Appell, Courteney L. Benjamin, Hui-Ying Luk, Yasuki Sekiguchi Feb 2023

Morning Versus Afternoon Body Mass In Free-Living Or Controlled Euhydration, Madi M. Pomroy, Marcos Keefe, Nigel Jiwan, Jan-Joseph S. Rolloque, Casey Appell, Courteney L. Benjamin, Hui-Ying Luk, Yasuki Sekiguchi

International Journal of Exercise Science: Conference Proceedings

The standard protocol to assess hydration status is by measuring body mass in the early morning without controlling fluid intake. However, obtaining first-morning body mass is not necessarily feasible for many situations, for example, most physical activities take place in the afternoon. Thus, first-morning body mass might not be practical to assess hydration status. PURPOSE: To investigate first-morning body mass versus afternoon body mass in free- living and controlled euhydration. METHODS: 9 males (age: 21 ± 2; mass: 79.7 ± 17.8 kg) and 5 females (age: 22 ± 2; mass: 60.5 ± 13.6 kg) visited the laboratory in …

Go to article

The Impact Of A Mindfulness Application (App) On The Mental Health Of Injured College Athletes Experiencing Chronic Pain, Sophia Ramirez, Amber M. Shipherd Feb 2023

The Impact Of A Mindfulness Application (App) On The Mental Health Of Injured College Athletes Experiencing Chronic Pain, Sophia Ramirez, Amber M. Shipherd

International Journal of Exercise Science: Conference Proceedings

Experiencing an injury can cause negative effects on an athlete’s mental health, including depression and anxiety, decreased self-esteem, isolation, loss of identity, and fear. Some athletes may experience chronic pain after an injury, defined as pain that lasts beyond the normal timespan of healing over three months, not including tissue damage. Most research on the psychological effects of sport injuries have focused on acute injuries rather than chronic injuries. Mindfulness, the ability of being fully present in a moment in time in one’s body, paying attention to physical sensations and feelings, has been found to improve mental health outcomes in …

Go to article

Differences In Load Response Of Rotator Cuff And Deltoid Muscles In Younger And Older Adults, Huiying Zhu, Christian Corral, Xin Yu, Lisa Griffin Feb 2023

Differences In Load Response Of Rotator Cuff And Deltoid Muscles In Younger And Older Adults, Huiying Zhu, Christian Corral, Xin Yu, Lisa Griffin

International Journal of Exercise Science: Conference Proceedings

Shoulder health is essential for the independence of older adults. Many older adults suffer from impairment of shoulder mobility, yet it is unknown how neuromuscular activation patterns in the shoulder change with age. PURPOSE: To analyze electromyographic (EMG) coherence in the delta band (2-5 Hz) - a measure of common drive from the central nervous system related to force output - to the rotator cuff and deltoid muscles in younger and older adults during low, med and high force levels. METHODS: Eighteen younger adults (YA) (11 males, 25 ± 5 years) and 6 older adults (OA) (3 males, 72.7 ± …

Go to article

Bioimpedance Spectroscopy Compared To Ultrasound-Derived Measures Of Quadriceps Muscle Quality, Kealey J. Wohlgemuth, Todd J. Freeborn, Mckenzie M. Hare, Kathryn E. Southall, Jacob A. Mota Feb 2023

Bioimpedance Spectroscopy Compared To Ultrasound-Derived Measures Of Quadriceps Muscle Quality, Kealey J. Wohlgemuth, Todd J. Freeborn, Mckenzie M. Hare, Kathryn E. Southall, Jacob A. Mota

International Journal of Exercise Science: Conference Proceedings

Muscle quality is often measured using ultrasound-derived echo intensity (EI). Recent works have shown tissue frequency-dependent electrical impedance from bioimpedance spectroscopy may be a modality for assessing tissue quality. PURPOSE: The purpose of the project was to examine the association between ultrasound-derived EI of the quadriceps muscles (i.e., vastus lateralis [VL], vastus medialis [VM], vastus intermedius [VI], rectus femoris [RF]) and measures of thigh tissue frequency-dependent electrical impedance (i.e., R0, R1, C, a, fp). METHODS: Twenty-four participants (13 women; mean ± SD; age: 22 ± 4 years; BMI: 25.47 ± 3.26 kg/m2) were recruited. Participants completed …

Go to article

The Effect Of Hydration On Readiness And Recovery Before And After Resistance Exercise- A Pilot Study, Cherish A. Dunlap, Nigel Jiwan, Casey Appell, Ryanoneil Ellis, Isabell R. Trevino, Carson Lewis, Raoul Sterling, Marcos Keefe, Ryan Dunn, Alan T. Ky, Jan-Joseph S. Rolloque, Kelly B. Elliot, Hui-Ying Luk, Yasuki Sekiguchi Feb 2023

The Effect Of Hydration On Readiness And Recovery Before And After Resistance Exercise- A Pilot Study, Cherish A. Dunlap, Nigel Jiwan, Casey Appell, Ryanoneil Ellis, Isabell R. Trevino, Carson Lewis, Raoul Sterling, Marcos Keefe, Ryan Dunn, Alan T. Ky, Jan-Joseph S. Rolloque, Kelly B. Elliot, Hui-Ying Luk, Yasuki Sekiguchi

International Journal of Exercise Science: Conference Proceedings

Dehydration can disturb sleep which is essential for the readiness and recovery process. However, the role of hydration on readiness and recovery indicated by low resting heart rate (RHR) and high heart rate variability (HRV) before and after resistance exercise (RE) is not known. PURPOSE: The purpose of this study was to examine the effect of hydration status on readiness and recovery before and after RE. METHODS: Seven resistance-trained men (age: 21±1 years; weight: 77.8±11.0 kg; height: 177.4±5.3 cm) performed a series of RE that included bilateral leg press and knee extensions (5 sets of 10 repetitions at …

Go to article

High-Intensity Interval Training Versus Moderate-Intensity Interval Training: Anthropometrics, Inflammation, Stress Markers And Exercise Enjoyment, Serena Morales, Joseph Stewart, Shelly Weise Feb 2023

High-Intensity Interval Training Versus Moderate-Intensity Interval Training: Anthropometrics, Inflammation, Stress Markers And Exercise Enjoyment, Serena Morales, Joseph Stewart, Shelly Weise

International Journal of Exercise Science: Conference Proceedings

Exercise as a key component of healthy living can be done at variable intensities with different types of training. Knowledge of specific benefits is useful to an individual in selection of an exercise routine. PURPOSE: This study aimed to compare the effects of high-intensity interval training (HIIT) versus moderate-intensity interval training (MIIT) in a college-aged population on inflammation, cortisol markers, anthropometric measurements and exercise enjoyment. METHODS: Participants (n=28) were randomized into two groups: HIIT (20 mins at ≥ 90% of HRR, 4x/wk) or MIIT (40 mins at 40-59% HRR, 4x/wk). C-reactive protein (CRP) and cortisol levels were analyzed via enzyme-linked …

Go to article

The Effect Of Hydration Status On Sleep Quality: A Pilot Study, Ryanoneil T. Ellis, Nigel C. Jiwan, Isabell R. Trevino, Casey R. Appell, Carson Lewis, Raoul Sterling, Alan T. Ky, Jan-Joseph S. Rolloque, Marcos S. Keefe, Ryan A. Dunn, Yasuki Sekiguchi, Hui-Ying Luk Feb 2023

The Effect Of Hydration Status On Sleep Quality: A Pilot Study, Ryanoneil T. Ellis, Nigel C. Jiwan, Isabell R. Trevino, Casey R. Appell, Carson Lewis, Raoul Sterling, Alan T. Ky, Jan-Joseph S. Rolloque, Marcos S. Keefe, Ryan A. Dunn, Yasuki Sekiguchi, Hui-Ying Luk

International Journal of Exercise Science: Conference Proceedings

Sleep improves muscle recovery and cognitive health and can be impaired by physiological and mental stress. Dehydration can induce stress which leads to sleep impairment and thus could affect the readiness for and recovery from exercise. However, no study has examined the effect of hydration on sleep before and after resistance exercise (RE). PURPOSE: To examine the effect of hydration status on sleep before and after RE. METHODS: 7 resistance-trained men completed two identical RE consisting of bilateral leg press and knee extensions (5 sets of 10 repetitions at 80% of 1 repetition maximum) in a euhydrated state …

Go to article

Gendered Dietary Supplements: Does The Marketing Reflect Different Formulations?, Alexandra P. Brojanac, Grant M. Tinsley, Madelin R. Siedler Feb 2023

Gendered Dietary Supplements: Does The Marketing Reflect Different Formulations?, Alexandra P. Brojanac, Grant M. Tinsley, Madelin R. Siedler

International Journal of Exercise Science: Conference Proceedings

Many dietary supplements are marketed with gendered terms, such as “for her” and “for him.” However, whether these statements reflect different nutrient contents of products and a biological basis has not been systematically examined. PURPOSE: The purpose of this analysis was to compare the micronutrient content of dietary supplements that are sold in separate forms based on gendered marketing. METHODS: The National Institutes of Health Dietary Supplements Label Database (DSLD) was searched using gendered terms, such as “hers,” “her,” “women,” “his,” “him,” and “men.” Eighty-nine pairs of micronutrient-containing products that were commercially available as a women’s version and a men’s …

Go to article

Effect Of Acute Exercise Mode On Test Anxiety: Aerobic Vs. Resistance, Natalie N. Trevino, Amber M. Shipherd, Christopher M. Hearon Feb 2023

Effect Of Acute Exercise Mode On Test Anxiety: Aerobic Vs. Resistance, Natalie N. Trevino, Amber M. Shipherd, Christopher M. Hearon

International Journal of Exercise Science: Conference Proceedings

Test anxiety is a specific type of state anxiety when a person experiences perceived pressure to excel on a test. Test anxiety not only hinders test performance, but the person's long term psychophysiological health. Many students struggle with test anxiety, but females have a higher incidence of test anxiety than males. Bouts of aerobic exercise have been shown to decrease state anxiety, but no work has been done examining the effects of resistant training on state anxiety. PURPOSE: the purpose of this study was to compare the effects of acute aerobic and resistance exercise bouts on test anxiety among …

Go to article

Skeletal Muscle Desaturation During Moderate And Severe Intensity Cycling Exercise Is Related To Half-Time From The Reactive Hyperemia Response, Jacob R. Dellinger, Joaquin Gonzales Feb 2023

Skeletal Muscle Desaturation During Moderate And Severe Intensity Cycling Exercise Is Related To Half-Time From The Reactive Hyperemia Response, Jacob R. Dellinger, Joaquin Gonzales

International Journal of Exercise Science: Conference Proceedings

Reactive hyperemia responses are a common method for assessing peripheral microvascular function, and the half-time reperfusion response, in particular, has been shown to be highly reproducible and sensitive to vascular dysfunction associated with disease. It is unclear, however, whether this parameter also provides information about microvascular responses during exercise. PURPOSE: The aim of this study was to determine the relationship between reactive hyperemia half-time response and the change in skeletal muscle oxygenation during cycling exercise. METHODS: Thirty young adults (20 men, 10 women; Age: 23 ± 5 y; peak VO2: 35.4 ± 4.4 ml/kg/min) completed a …

Go to article

The Effects Of Heat Acclimatization, Heat Acclimation, And Intermittent Heat Training On Maximal Oxygen Uptake, Ryan A. Dunn, Lauren A. Fry, Yasuki Sekiguchi, Courteney L. Benjamin, Ciara N. Manning, Robert A. Huggins, Rebecca L. Stearns, Douglas J. Casa Feb 2023

The Effects Of Heat Acclimatization, Heat Acclimation, And Intermittent Heat Training On Maximal Oxygen Uptake, Ryan A. Dunn, Lauren A. Fry, Yasuki Sekiguchi, Courteney L. Benjamin, Ciara N. Manning, Robert A. Huggins, Rebecca L. Stearns, Douglas J. Casa

International Journal of Exercise Science: Conference Proceedings

Maximal oxygen uptake (VO2max) is an important determinant of endurance performance. Heat acclimation/acclimatization (HA/HAz) strategies elicit improvements in endurance performance. When heat exposure is reduced, intermittent heat training (IHT) is potentially beneficial to alleviate HA/HAz adaptation decay, however corresponding VO2max responses are unknown. PURPOSE: To determine the effects of HA/HAz and IHT on VO2max in endurance runners and identify how long VO2max adaptations remain following removal of repeated heat exposure. METHODS: Twenty-seven male endurance runners (mean ± SD; age, 36 ± 12 years; body mass, 73.03 ± 8.97 kg; height, 178.81 ± 6.39 cm; VO …

Go to article

Alpha-Cyclodextrin-Containing Beverages For Hydration Enhancement In Humans, Ethan G. Tinoco, Madelin Siedler, Christian Rodriguez, Sarah White, Gabrielle Dehaven, Alexandra Brojanac, Patrick Harty, Matthew Stratton, Jacob Green, Jake Boykin, Abegale Williams, Grant M. Tinsley, Dale Keith Feb 2023

Alpha-Cyclodextrin-Containing Beverages For Hydration Enhancement In Humans, Ethan G. Tinoco, Madelin Siedler, Christian Rodriguez, Sarah White, Gabrielle Dehaven, Alexandra Brojanac, Patrick Harty, Matthew Stratton, Jacob Green, Jake Boykin, Abegale Williams, Grant M. Tinsley, Dale Keith

International Journal of Exercise Science: Conference Proceedings

A substantial portion of the world’s population may be inadequately hydrated, and dehydration is associated with several disease states and acute impairments in exercise performance. As such, there is continued interest in novel strategies to promote adequate hydration. The carbohydrate alpha-cyclodextrin has recently been shown to enhance water uptake through human aquaporins expressed in a single-cell model and promote longevity in model multicellular organisms. However, there is no relevant human research examining the potential hydrating effects of alpha-cyclodextrin-containing beverages. PURPOSE: To determine if novel beverage formulations containing alpha-cyclodextrin improve a bioimpedance-based hydration marker in humans. METHODS: In a …

Go to article

Body Fat Percentage And Hormonal Intrauterine Device Use Are Independently Associated With Self-Reported Menstrual Regularity In Young Adult Females, Gabrielle Dehaven, Madelin R. Siedler, Christian Rodriguez, Sarah White, Alex Brojanac, Ethan Tinoco, Grant M. Tinsley Feb 2023

Body Fat Percentage And Hormonal Intrauterine Device Use Are Independently Associated With Self-Reported Menstrual Regularity In Young Adult Females, Gabrielle Dehaven, Madelin R. Siedler, Christian Rodriguez, Sarah White, Alex Brojanac, Ethan Tinoco, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Menstrual regularity is a key indicator of energy availability, long-term bone density, and other important health information in females. The occurrence of a regular menstrual cycle indicates that an individual’s level of estrogen is supportive of strong bones and that they are achieving the caloric intake required to support their activity level. In contrast, an irregular menstrual cycle can be indicative of insufficient energy availability which may, over time, result in low bone mineral density and thus a higher risk of bone stress injuries. However, hormonal contraceptive use, including the rising use of intrauterine devices (IUDs), may mask these changes …

Go to article

Relationships Between Morning And Afternoon Wut (Weight, Urine Color, And Thirst) Criteria And Hydration Markers, Marcos S. Keefe, Jan-Joseph S. Rolloque, Nigel C. Jiwan, Casey R. Appell, Tyler Mccollum, Hui-Ying Luk, Yasuki Sekiguchi Feb 2023

Relationships Between Morning And Afternoon Wut (Weight, Urine Color, And Thirst) Criteria And Hydration Markers, Marcos S. Keefe, Jan-Joseph S. Rolloque, Nigel C. Jiwan, Casey R. Appell, Tyler Mccollum, Hui-Ying Luk, Yasuki Sekiguchi

International Journal of Exercise Science: Conference Proceedings

A Venn diagram decision tool consisting of weight, urine color, and thirst (WUT) is suggested to measure hydration status. The WUT Venn diagram has been used as a practical hydration status assessment tool; however, this relationship has only been investigated using a first-morning urine sample. PURPOSE: To investigate relationships between morning and afternoon WUT criteria, blood and urine markers. METHODS: Eight men (age: 21 ± 3; mass: 76.3 ± 15.6 kg) and five women (age: 22 ± 2; mass: 60.5 ± 13.6 kg) completed the study. Body mass, urine color, urine specific gravity (USG), urine osmolality (UOSM …

Go to article

First Prev Next Last