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Full-Text Articles in Medicine and Health Sciences
Comparing The Effect Of N-95 Vs Surgical Mask Use On Resting Metabolic Data Changes, Robert Steinberg, Alexander Rothstein, Amerigo Rossi, Alyssa Hillian, Joanne Difrancisco-Donoghue
Comparing The Effect Of N-95 Vs Surgical Mask Use On Resting Metabolic Data Changes, Robert Steinberg, Alexander Rothstein, Amerigo Rossi, Alyssa Hillian, Joanne Difrancisco-Donoghue
International Journal of Exercise Science: Conference Proceedings
Face masks reduce the spread of viral respiratory particles, however, their impact on respiratory physiology requires further research. Previous studies reported negative changes in gas exchange data when wearing a surgical mask, however, breath-by-breath data has not been analyzed. PURPOSE: To compare physiological changes when wearing an N95 mask and surgical mask at rest. Variables measured include oxygen consumption (VO2), carbon dioxide ventilation (VC02), respiratory exchange ratio (RER), heart rate (HR), respiratory rate (RR), minute ventilation (MV), and discomfort. METHODS: 42 subjects ages 18-55 (19 men; age 22.98±3.83) were recruited. Exclusion criteria was a history of metabolic disease/claustrophobia. Respiratory and …
The Caloric Cost Of Self-Paced Exercise In Full Body Tabata, Treadmill Running Tabata, And Continuous Running, Austin Dunn, James R. Rowe
The Caloric Cost Of Self-Paced Exercise In Full Body Tabata, Treadmill Running Tabata, And Continuous Running, Austin Dunn, James R. Rowe
International Journal of Exercise Science: Conference Proceedings
Weight management via exercise is critical in both athletic and general populations. It is unclear what modality of exercise elicits the greatest caloric efficiency. PURPOSE: To compare the energy expenditure of three different exercise regimens when performed at a self-selected pace. METHODS: Recreationally active men (n=3) and women (n=4) performed 3 separate exercise bouts at a self-selected pace: total body Tabata (TBT), treadmill running Tabata (TRT), and continuous running (CONT) in a counterbalanced manner with at least 48h between bouts. Trials consisted of a 10-minute rest period, 5-minute warmup, 25-minute exercise bout, and a 25-minute recovery period. TBT consisted …
Effect Of The Physical Inactivity Duration On Postprandial Lipid Metabolism The Morning After Exercise, Jieting Wang, Chelsea Merseal, Hadi Fareed, Remzi Satiroglu, Edward Coyle
Effect Of The Physical Inactivity Duration On Postprandial Lipid Metabolism The Morning After Exercise, Jieting Wang, Chelsea Merseal, Hadi Fareed, Remzi Satiroglu, Edward Coyle
International Journal of Exercise Science: Conference Proceedings
In physically active people (e.g., ~8,000 steps/d), an acute bout of exercise improves postprandial fat metabolism when measured the morning after exercise. However, in people who have been inactive for more than two days, the acute bout of exercise does not improve postprandial fat metabolism as reflected by a greater increase in plasma triglyceride concentration and a reduced whole body fat oxidation. This phenomenon whereby fat metabolism is suppressed by prior inactivity is termed ‘exercise resistance’. PURPOSE: The purpose was to determine if shorter periods (i.e., less than two days) of inactivity (i.e., 12, 24, 36 h) induce ‘exercise …
Assessing The Differences Between Chewing And Swallowing Arugula Extract Capsules On The Concentrations Of Nitric Oxide Metabolites In Metabolically Healthy Males, Tomas J. Chapman-Lopez, Leroy Bolden, Dylan T. Wilburn, Jeffery L. Heileson, Rodney Sturdivant, Andrew R. Gallucci, Leslee K. Funderburk, Jeffrey S. Forsse
Assessing The Differences Between Chewing And Swallowing Arugula Extract Capsules On The Concentrations Of Nitric Oxide Metabolites In Metabolically Healthy Males, Tomas J. Chapman-Lopez, Leroy Bolden, Dylan T. Wilburn, Jeffery L. Heileson, Rodney Sturdivant, Andrew R. Gallucci, Leslee K. Funderburk, Jeffrey S. Forsse
International Journal of Exercise Science: Conference Proceedings
Previous literature has examined the benefits of consuming nitrate (NO3)-rich crops (e.g., beetroot, spinach, watercress, arugula) on endothelial function due to their positive influence on nitric oxide (NO) production from the utilization of nitrate-reducing bacteria in the oral microbiome. However, there has yet to be a study addressing how the method of consumption may influence the role the oral microbiome plays in the degradation of NO3 to NO from consuming an encapsulated NO3-rich crop. PURPOSE: To determine the differences in NO metabolite concentrations following two different methods (e.g., chewing, swallowing) of consuming the encapsulated arugula extract. METHODS: Eight, …
Short-Term Cd8+ T Cell Depletion Results In Blunted Liver Inflammation In Old Mice, Konner J. Terrebonne, David J. Buckley, Blessy Joseph, Sunita Sharma, Daniel W. Trott
Short-Term Cd8+ T Cell Depletion Results In Blunted Liver Inflammation In Old Mice, Konner J. Terrebonne, David J. Buckley, Blessy Joseph, Sunita Sharma, Daniel W. Trott
International Journal of Exercise Science: Conference Proceedings
Advanced age is associated with an increase in basal inflammation of the organs. Previously we have found that T cells accumulate in the liver of old mice. A large proportion of these cells are CD8+ and produce inflammatory cytokines. We have previously demonstrated that CD8+ T cell depletion results in improved glucose tolerance in old mice. However, the mechanisms by which CD8+ depletion improves glucose tolerance is unclear. Therefore, we sought to determine whether pharmacologic CD8+ depletion would result in decreased liver specific inflammation in old mice compared to their old CD8+ intact counterparts. PURPOSE: To test the hypothesis …
Nutrition Able: A Lecture-Based Intervention To Promote Nutritional Literacy About Protein Intake In Women, Jeffery Bolte, Alejandra Garcia, Jacob Abalos, Jakson Johnson, Alex Joyce, Christopher Hinds, Jared Tuttle, Jeff Svec
Nutrition Able: A Lecture-Based Intervention To Promote Nutritional Literacy About Protein Intake In Women, Jeffery Bolte, Alejandra Garcia, Jacob Abalos, Jakson Johnson, Alex Joyce, Christopher Hinds, Jared Tuttle, Jeff Svec
International Journal of Exercise Science: Conference Proceedings
Sport performance is influenced by sport-specific requirements for body composition. One major predictor of body composition is protein intake. Higher protein intake tends to cause leaner body composition relative to lower protein intake, especially during caloric deficit. In Bexar County, ~72% of the adult population is overweight/obese and 15.5% are diabetic. This suggests that high protein diet could be a high leverage option in the San Antonio population for optimizing body composition for sport performance. Furthermore, late life sporting activity and protein intake is a primary method for mitigating sarcopenia, osteoporosis, fractures, and accidental death in post-menopausal women. PURPOSE: …
Habitual Fluid Intake Does Not Affect Sleep Parameters In Young Women., Ruben E. Moya, Hui-Ying Luk, Casey Appell, Alan Ky, Kelly B. Elliott, Cherish Dunlap, Nigel Jiwan, Yasuki Sekiguchi
Habitual Fluid Intake Does Not Affect Sleep Parameters In Young Women., Ruben E. Moya, Hui-Ying Luk, Casey Appell, Alan Ky, Kelly B. Elliott, Cherish Dunlap, Nigel Jiwan, Yasuki Sekiguchi
International Journal of Exercise Science: Conference Proceedings
Sleep is essential for optimal physical performance, cognitive function, recovery, and overall health. Similarly, hydration status has been shown to influence physical and cognitive functions. Dehydration can lead to impaired cognition and possibly impaired sleep. However, the effect of habitual total water intake (TWI) on sleep and recovery measures have not been examined. PURPOSE: To examine the effect of TWI on sleep and recovery measures in young women. METHODS: Twenty-two young women (age: 22.8±4.6 yrs; body mass: 60.0±9.5 kg; height: 164.6±6.1 cm) collected fluid intake and food consumption information across a 5 day period, and average TWI was calculated based …
Vitamin D3 Supplementation Alters Gut Microbiome Composition And Increases Stability In Healthy Individuals, Madhur Wyatt, Ankan Choudhury, Gabriella Von Dohlen, Jeffery L. Heileson, Jeff S. Forsse, Leigh Greathouse
Vitamin D3 Supplementation Alters Gut Microbiome Composition And Increases Stability In Healthy Individuals, Madhur Wyatt, Ankan Choudhury, Gabriella Von Dohlen, Jeffery L. Heileson, Jeff S. Forsse, Leigh Greathouse
International Journal of Exercise Science: Conference Proceedings
Early onset colorectal cancer incidence has increased significantly. Evidence links serum 25(OH)D levels and the gut microbiome to colon carcinogenesis, with vitamin D pivotal in modulating the immune system and intestinal epithelial function. The effect of supplemental vitamin D3 on the gut microbiome in healthy adults is unclear. PURPOSE: Investigate the effect of a 12-week oral dose of 4000 IU vitamin D3 on acute and long-term gut microbiome changes in healthy adults. METHODS: Forty-three participants, aged 18-53, were randomized based on baseline serum 25(OH)D levels into treatment (n=21) and placebo groups (n=22). Fecal samples …
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 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 …
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 …
The Effects Of Initiating A Fast With A High Fat Or A High Carbohydrate Shake On Mcp-1, Tnf-Alpha, And Il-6 Levels, Gage Jensen, Bruce Bailey
The Effects Of Initiating A Fast With A High Fat Or A High Carbohydrate Shake On Mcp-1, Tnf-Alpha, And Il-6 Levels, Gage Jensen, Bruce Bailey
International Journal of Exercise Science: Conference Proceedings
Alzheimer’s disease, stroke, heart disease, and diabetes all rank among the leading causes of death in the United States, particularly among the elderly. While many behavioral and pharmacological strategies have been employed to reduce the incidence of these conditions, increasing evidence indicates that entering a mild to moderate state of ketosis through fasting or a very low carbohydrate diet can improve the prognosis for these conditions. PURPOSE: The purpose of this study was to evaluate the extent to which a high carbohydrate low fat (HC/LF) pre-fast meal altered MCP-1, TNF-alpha and IL-6 compared to a low carbohydrate high-fat pre-fast …
Impacts Of Creatine Supplementation On Running Anaerobic Sprint Performance Test (Rast) Power And Velocity In Youth Soccer Players, Nia Howard, Citlaly Jauregui, Heitor P N Amorim, Sullen B. Sant'ana, Juan Mielgo Ayuso, Dailson Paulucio, Marco Machado, Steven B. Machek
Impacts Of Creatine Supplementation On Running Anaerobic Sprint Performance Test (Rast) Power And Velocity In Youth Soccer Players, Nia Howard, Citlaly Jauregui, Heitor P N Amorim, Sullen B. Sant'ana, Juan Mielgo Ayuso, Dailson Paulucio, Marco Machado, Steven B. Machek
International Journal of Exercise Science: Conference Proceedings
Creatine supplementation commonly enhances short-term, high-intensity effort performance such the soccer-specific ability to perform repeated sprints. Research in this regard is both generally sparse but specifically more so in youth athletes. PURPOSE: to determine the effect of 28 days of creatine monohydrate supplementation on running anaerobic sprint performance (RAST) power and velocity in youth soccer players. METHODS: Sixteen male youth soccer players were randomized in double-blinded, parallel-group fashion to either 28 days of creatine supplementation (CRE; 15.9±0.35y) or an equivalently-dosed dextrose (PLA; 15.5±0.54y; 0.3g/kg/d loading dose for the first seven days, followed by 0.03g/kg/d for the remaining period), whereby they …
The Effects Of A High-Carbohydrate Versus A High-Fat Shake On Biomarkers Of Metabolism And Glycemic Control When Used To Interrupt A 38-Hour Fast: A Randomized Crossover Study, Cameron Jacobsen, Landon Deru, Bruce W. Bailey
The Effects Of A High-Carbohydrate Versus A High-Fat Shake On Biomarkers Of Metabolism And Glycemic Control When Used To Interrupt A 38-Hour Fast: A Randomized Crossover Study, Cameron Jacobsen, Landon Deru, Bruce W. Bailey
International Journal of Exercise Science: Conference Proceedings
As the link between metabolic health and chronic diseases have come into focus, it has highlighted the need to establish methods for improving metabolic flexibility. The ability to efficiently switch metabolic fuels from glucose to fatty acid-derived ketones is an indication of good metabolic health. Regular fasting allows the body to make the metabolic switch to ketones more often, which is commonly identified through the measurement of the ketone beta-hydroxybutyrate (BHB). Measuring both BHB and glucose levels can provide information about the body’s response to various foods, fasting regimens, or other metabolic stressors, and give valuable insights to measuring a …
Food And Mood: Investigating The Correlation Between Vitamin B12 Intake And Depression, Jana Soucar, Hawley Almstedt
Food And Mood: Investigating The Correlation Between Vitamin B12 Intake And Depression, Jana Soucar, Hawley Almstedt
International Journal of Exercise Science: Conference Proceedings
Vitamin B12 is an essential nutrient that metabolizes homocysteine, which is a potentially neurotoxic molecule when in excess. Studies show that a deficiency in vitamin B12, as well as folate, may be associated with mental health conditions. Additionally, the prevalence of depression is higher in college students than other demographic populations. PURPOSE: The purpose of this study was to investigate a correlation between vitamin B12 and folate intake with signs and symptoms of depression in college students. METHODS: This study was conducted by first providing participants with the Beck Depression Inventory (BDI) to measure signs and symptoms of …
Impacts Of Creatine Supplementation On Body Weight And Running Anaerobic Sprint Performance Test (Rast) Time Performance In Youth Soccer Players, Citlaly Jauregui, Heitor Pn Amorim, Suellen B. Sant'ana, Juan Mielgo Ayuso, Dailson Paulucio, Steven B. Machek, Marco Machado
Impacts Of Creatine Supplementation On Body Weight And Running Anaerobic Sprint Performance Test (Rast) Time Performance In Youth Soccer Players, Citlaly Jauregui, Heitor Pn Amorim, Suellen B. Sant'ana, Juan Mielgo Ayuso, Dailson Paulucio, Steven B. Machek, Marco Machado
International Journal of Exercise Science: Conference Proceedings
Creatine supplementation commonly increases intracellular water and/or lean mass-associated weight gain and concomitantly improved short-term, high-intensity effort performance such as repeated sprint ability. Research in this regard is both generally sparse but specifically more so in younger soccer athletes. PURPOSE: to determine the effect of 28 days of creatine monohydrate supplementation on body weight and running anaerobic sprint performance (RAST) time in youth soccer players. METHODS: Sixteen male youth soccer players were randomized in double-blinded fashion to either 28 days of creatine supplementation (CRE; 15.9±0.35y) or an equivalently-dosed dextrose (PLA; 15.5±0.54y; 0.3g/kg/d for the first 7 days, followed by 0.03g/kg/d …
Influence Of Acute Turkesterone Dosing On Serum Insulin-Like Growth Factor 1 (Igf-1) And Subjective Digestibility Scores In Recreationally-Active Males, Stephanie E. Scagliotti, Dillon Harris, Steven B. Machek, Nicolle Leon, Jeff S. Forsse, Leslee Funderburk, Tracey Sulak
Influence Of Acute Turkesterone Dosing On Serum Insulin-Like Growth Factor 1 (Igf-1) And Subjective Digestibility Scores In Recreationally-Active Males, Stephanie E. Scagliotti, Dillon Harris, Steven B. Machek, Nicolle Leon, Jeff S. Forsse, Leslee Funderburk, Tracey Sulak
International Journal of Exercise Science: Conference Proceedings
Turkesterone is a relatively novel phytoecdysteroid compound that has become increasingly popular amongst recreationally active demographics. Despite prior in vitro data suggesting that this compound may support enhanced body composition via both insulin-like growth factor 1 (IGF-1)-mediated protein synthesis, no human evidence exists in this regard nor how well its digestibility is tolerated. PURPOSE: To determine the effect of multiple turkesterone doses on serum IGF-1 and to report any gastrointestinal (GI) distress symptoms in a healthy human sample. METHODS: Eleven recreationally active males (23.3±2.2y) visited the laboratory on three occasions separated by at least seven days and were randomized in …
The Effects Of A High Carbohydrate Vs. High Fat Pre-Fast Meal On Incretin Hormone Secretion: A Randomized Crossover Study, Parker Graves, Landon Deru, Bruce Bailey
The Effects Of A High Carbohydrate Vs. High Fat Pre-Fast Meal On Incretin Hormone Secretion: A Randomized Crossover Study, Parker Graves, Landon Deru, Bruce Bailey
International Journal of Exercise Science: Conference Proceedings
Chronic illness such as strokes, heart disease and diabetes all rank among the leading causes of death in the United States. Recently, fasting has gained popularity as a means of preventing and treating chronic illness. PURPOSE: Fasting produces multiple beneficial physiological responses that have been shown to aid in chronic disease prevention, one of which is observed in relation to incretin hormones such as glucose-dependent insulin tropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1). These incretin hormones are released by the gut to augment the secretion of insulin to regulate postprandial glucose levels. During a fast, the decrease in incretin …
Fluid Intake And Hydration Responses To Mass Participation Gravel Cycling, Brandon Raik, Francis Salmon, Grace Handler, Matthew M. Schubert
Fluid Intake And Hydration Responses To Mass Participation Gravel Cycling, Brandon Raik, Francis Salmon, Grace Handler, Matthew M. Schubert
International Journal of Exercise Science: Conference Proceedings
Gravel cycling is a relatively new cycling discipline, with the Union Cycliste Internationale (UCI) hosting their first UCI Gravel World Championships in 2022. Gravel races combine features of road racing, cyclocross, and mountain biking, including various terrain of varying technical difficulty (paved roads, dirt roads, fire roads, single- and double-track trails), long distances, substantial vertical elevation gain, obstacles, and limited opportunities to stop for in-race nutrition. PURPOSE: To date, gravel racing has not been scientifically examined to determine the demands of the sport. Data from cycling road races indicate substantial fluid loss, which may impair exercise performance. This study assessed …
Food Sensitives In Athletes: Whey More Common Than You May Expect?, Eve M. Clarkson Miss, Brittanie L. Lockard, Ben Garza, Julianne Damico, Terah Ege
Food Sensitives In Athletes: Whey More Common Than You May Expect?, Eve M. Clarkson Miss, Brittanie L. Lockard, Ben Garza, Julianne Damico, Terah Ege
International Journal of Exercise Science: Conference Proceedings
Food sensitives, which differ from food allergies, are caused by digestive problems to foods that may lead to symptoms such as bloating, diarrhea, constipation, fatigue, headache, joint pain, and sleep disturbances, among other issues. It is estimated that food sensitivities affect 15-20% of the US population. These are IgG antibody-mediated responses that may develop from a variety of causes such as enzymatic defects in the digestive system. Research suggests that IgG-based tests produce clinically meaningful results that aid in the development of a targeted elimination diet. In a non-athletic sample with food sensitivities, our lab previously reported that 70% of …
Vitamin D Association With Renal Health And Filtration In Healthy Individuals Free Of Cardiometabolic Diseases: A Pilot Study, Meena K. Meiyyappan, Ricardo Torres, Tomas Chapman-Lopez, Keri Collins, Bayley Humphrey, Andrew Gallucci, Brent Dragoo, Leslee Funderburk, Panagiotis Koutakis, Jeff S. Forsse
Vitamin D Association With Renal Health And Filtration In Healthy Individuals Free Of Cardiometabolic Diseases: A Pilot Study, Meena K. Meiyyappan, Ricardo Torres, Tomas Chapman-Lopez, Keri Collins, Bayley Humphrey, Andrew Gallucci, Brent Dragoo, Leslee Funderburk, Panagiotis Koutakis, Jeff S. Forsse
International Journal of Exercise Science: Conference Proceedings
The effect of vitamin D (VITD) on bone, muscle, and over health is well know in renal failure and chronic kidney disease (CKD). However, the influence of VITD on renal health and filtration (RHF) in healthy individuals is unclear. Currently, only serum creatinine concentration (sCr) methods are used to assess renal status in health individuals. However, newer biomarkers like serum Cystatin C (CyC) and urine epidermal growth factor (uEGF) show promise in evaluating baseline RHF. The impact of Vitamin D on filtration in healthy individuals of various ages is still unknown. PURPOSE: To determine the impact of VITD on RHF …
Macronutrients For High And Low Injury Risk Collegiate Rodeo Athletes Compared To Recommended Dietary Allowances, Jessie Ramirez, Andy Wolfe, Bailee Cooper, Ruth Caddell
Macronutrients For High And Low Injury Risk Collegiate Rodeo Athletes Compared To Recommended Dietary Allowances, Jessie Ramirez, Andy Wolfe, Bailee Cooper, Ruth Caddell
International Journal of Exercise Science: Conference Proceedings
Rodeo is a high-intensity, intermittent sport in nature unlike popular American sports. The production of empirical research outlining the physical demands and ideal training methods connected to rodeo and improving performance has not matched the rate of growth the sport of rodeo has experienced. Particularly regarding nutritional recommendations, limited research explains nutrition and its role in injury prevention and the process of recovery in rodeo athletes. PURPOSE: The purpose was to investigate the differences of macronutrients between high risk and low risk of injury in rodeo athletes compared to recommended daily allowances (RDA). METHODS: College rodeo athletes from …
The Effect Of Heat Acclimatization And Heat Acclimation On Endurance Trained Athlete Substrate Utilization, Jacob T. Richardson, Yasuki Sekiguchi, Courteney L. Benjamin, Alan T. Ky, Douglas Casa
The Effect Of Heat Acclimatization And Heat Acclimation On Endurance Trained Athlete Substrate Utilization, Jacob T. Richardson, Yasuki Sekiguchi, Courteney L. Benjamin, Alan T. Ky, Douglas Casa
International Journal of Exercise Science: Conference Proceedings
Heat acclimatization (HAz) and Heat Acclimation (HA) are important strategies to induce thermoregulatory adaptations to mitigate negative impact of heat stress. However, despite improving endurance performance, few studies explore their impact on substrate utilization. PURPOSE: To investigate the effect of HAz and HA on endurance athlete substrate utilization during submaximal exercise in the heat. METHODS: Fourteen endurance-trained male athletes (mean ± SD; age, 33 ± 9 years; body mass, 70.9 ± 10.1 kg; height, 177.7 ± 6.4 cm; VO2max, 59.3 ± 7.4 ml·kg−1·min−1; % body fat, 8.5% ± 3.9%) participated in this …
Effects Of Neuromuscular Electrical Stimulation On Energy Expenditure And Oxygen Consumption, Victoria M. Rocha, Jehu Apaflo, Gabriel Narvaez, Ali Mossayebi, Joshua Labadah, Sudip Bajpeyi
Effects Of Neuromuscular Electrical Stimulation On Energy Expenditure And Oxygen Consumption, Victoria M. Rocha, Jehu Apaflo, Gabriel Narvaez, Ali Mossayebi, Joshua Labadah, Sudip Bajpeyi
International Journal of Exercise Science: Conference Proceedings
Exercise is beneficial to improve metabolic diseases such as obesity and type 2 diabetes. Physical activity results in an increase in energy expenditure (EE) and oxygen consumption due to increased energy demand. Neuromuscular electrical stimulation (NMES) is an alternative strategy to induce muscle contraction. Our previous work have shown that NMES induced muscle contraction can improve metabolic health in an overweight and obese population. However, it is not known whether NMES induced muscle contraction leads to greater energy expenditure. PUPROSE: To determine the effect of NMES induced muscle contraction on energy expenditure and oxygen consumption. METHODS: Eighteen sedentary overweight/obese men …
The Influence Of Tabata And Energy Replenishment On Post-Exercise Metabolic Recovery: A Pilot Analysis, Tiffani Neuville, James Rowe Dr, Vivyan Gonzalez
The Influence Of Tabata And Energy Replenishment On Post-Exercise Metabolic Recovery: A Pilot Analysis, Tiffani Neuville, James Rowe Dr, Vivyan Gonzalez
International Journal of Exercise Science: Conference Proceedings
PURPOSE: Compare post-exercise metabolic recovery of individuals who, to recover from Tabata, drink 1) water (W), 2) 100% carbohydrate (CHO), or 3) 65% - 35% protein-carbohydrate (PRO-CHO). METHODS: Participants were recreationally active individuals (n = 21) who performed Tabata (TB) in the form of 1) full body calisthenics (FB) and 2) treadmill running (TR). Participants were randomly assigned to complete TB either with W (n=7), CHO (n=7), or PRO-CHO (n=7). Participants completed each of the three bouts in randomized order on three separate days. One bout involved sitting with no energy replenishment (rest). A second bout had the participants …
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
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). …
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
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+ …
Age-Related Changes In Skeletal Muscle Oxygen Utilization: A Review, Maxwell T. Aiken, Sabrina S. Salvatore, Kyle N. Zelenski, Ryan K. Perkins
Age-Related Changes In Skeletal Muscle Oxygen Utilization: A Review, Maxwell T. Aiken, Sabrina S. Salvatore, Kyle N. Zelenski, Ryan K. Perkins
International Journal of Exercise Science: Conference Proceedings
The cardiovascular and skeletal muscle systems are intrinsically interconnected, sharing the goal of delivering oxygen to metabolically active tissue. Deficiencies within those systems that affect oxygen delivery to working tissues are a hallmark of advancing age. Oxygen delivery and utilization are reflected as muscle oxygen saturation (SmO2) and may be assessed using near-infrared resonance spectroscopy (NIRS). PURPOSE: This review is intended to provide an update on the current state of literature regarding age-related effects on SmO2. Furthermore, we attempt to bridge the gap between SmO2 and associated underlying mechanisms affected by aging. FINDINGS: SmO …
Effects Of Acute Aerobic Exercise On Circulating Stlr And Srage Profiles In Normoglycemic And Insulin-Resistant Individuals, Ryan K. Perkins
Effects Of Acute Aerobic Exercise On Circulating Stlr And Srage Profiles In Normoglycemic And Insulin-Resistant Individuals, Ryan K. Perkins
International Journal of Exercise Science: Conference Proceedings
Impaired blood glucose regulation as a consequence of insulin resistance is linked to development of many clinical conditions, including cardiovascular disease, Alzheimer’s, and skeletal muscle wasting via inflammatory processes. Recent evidence suggests circulating solubilized Toll-Like Receptor (sTLR) and Receptor for Advanced Glycation Endproducts (sRAGE) originate from skeletal muscle and are related to glucose management and inflammation. PURPOSE: The purpose of this investigation was to explore 1) relationships among sTLR and sRAGE profiles and indices of metabolic health and 2) sTLR and sRAGE responses to an acute bout of aerobic exercise (AE) in normoglycemic (NG) and insulin-resistant (IR) individuals. We hypothesized …
Impact Of Load Carriage On Metabolic Efficiency, Tyson Ngatikaura, Shane Draper, Lily Poulton, Ally Sipple, Tyler Standifird, Andrew Creer
Impact Of Load Carriage On Metabolic Efficiency, Tyson Ngatikaura, Shane Draper, Lily Poulton, Ally Sipple, Tyler Standifird, Andrew Creer
International Journal of Exercise Science: Conference Proceedings
Load carriage is a crucial detail of long-distance running, especially when it comes to ultra-marathon distances (>26.2 miles). Longer distances require larger loads to carry fluids and nutrition to maintain performance during these events. Running packs fitted close to the torso are the most popular methods for carrying 1-3 L of fluid, additional food, and gear; however, little is known to what extent load mass may impact running performance. PURPOSE: To identify at which point relative load mass (% of body mass) begins to negatively impact submaximal metabolic efficiency. METHODS: To date, 7 active runners (≥3 days/week, ≥16.09 km/week …