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Effects Of High Concentration Vivissential Amino Acids Sports Drink Ingestion On Performance In Trained Athletes, Klaudia Szych, Ariel Gomez, Jerene Yazzie, Sarah A. Massey, Lorenzo Juarez, Andi Johnson, Shannon Jackson, Matthew A. Barlow Phd Feb 2019

Effects Of High Concentration Vivissential Amino Acids Sports Drink Ingestion On Performance In Trained Athletes, Klaudia Szych, Ariel Gomez, Jerene Yazzie, Sarah A. Massey, Lorenzo Juarez, Andi Johnson, Shannon Jackson, Matthew A. Barlow Phd

International Journal of Exercise Science: Conference Proceedings

Essential amino acids are necessary for protein nutrition and muscle sustainability. Previous studies looking at the effects of BCAAs did not result in measurable reductions in muscle damage and enhanced recovery of muscle function. PURPOSE: The Calwood Nutritionals Company manufactures a balanced nutritional formula of amino acids with the addition of a higher concentration of arginine and methionine, which during an acute 3-day study in our lab decreased muscle degradation in a young sedentary population. The purpose of this study is to examine the changes in performance following the chronic consumption of the essential amino acids in collegiate athletes …

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Changes In Visceral Adipose Tissue And Body Composition After A Short-Term Hypocaloric High-Fat Diet, Jarrett Walbolt, Yunsuk Koh Feb 2019

Changes In Visceral Adipose Tissue And Body Composition After A Short-Term Hypocaloric High-Fat Diet, Jarrett Walbolt, Yunsuk Koh

International Journal of Exercise Science: Conference Proceedings

Introduction: Elevated cardiometabolic risk is linked with excess visceral adipose tissue (VAT), and high-fat (HF) diets are often used to combat unfavorable body composition. Purpose: To investigate the connection between HF diets and body composition, more specifically VAT. Methods: 12 healthy, sedentary individuals participated in a randomized, cross-over design study. A two-week HF or high-carbohydrate (HC) diet with a 20% total reduction in total caloric intake from their typical diet was randomly assigned to each participant. The HF diet consisted of 70% fat and 30% carbohydrate and protein, with a limit of 50 grams of carbohydrate, while the HC diet …

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Predicting Resting Metabolic Rate In Healthy Adults Using Body Composition And Circumference Measurements, Kristi L. Chase, Kyle T. Patek, John L. Walker, Joni A. Mettler Ph.D Feb 2019

Predicting Resting Metabolic Rate In Healthy Adults Using Body Composition And Circumference Measurements, Kristi L. Chase, Kyle T. Patek, John L. Walker, Joni A. Mettler Ph.D

International Journal of Exercise Science: Conference Proceedings

Measurement of resting metabolic rate (RMR) is an important factor for weight management. Previous research has reported several variables to estimate RMR such as body size, percent fat (%BF), age, and sex; however, little is known regarding the effect of circumference measures in estimating RMR. PURPOSE: The purpose of this study was to develop a model to estimate RMR using waist circumference (WC), an easily obtainable measure, and cross-validate it to previously published models. METHODS:Subjects were 140 adult men and women, ages 18-65 years. RMR was measured through indirect calorimetry, %BF was measured through air displacement plethysmography, and fat …

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Impact Of Time Restricted Feeding On Markers Of Cardiometabolic Health, Liliana I. Renteria, Elias Villalobos, Hunter S. Waldman, Matthew J. Mcallister Feb 2019

Impact Of Time Restricted Feeding On Markers Of Cardiometabolic Health, Liliana I. Renteria, Elias Villalobos, Hunter S. Waldman, Matthew J. Mcallister

International Journal of Exercise Science: Conference Proceedings

Time restricted feeding (TRF) is a form of intermittent fasting in which all calories are consumed within a certain amount of time (i.e. 6-8 hrs) only water is ingested for the remainder of the day. Previous research shows improvements in body composition and some markers of cardiometabolic health, but it is not clear if these results were due to the decreased eating window, or due to a decrease in caloric intake that typically occurs with fasting protocols. PURPOSE: to assess whether a caloric deficit is necessary to achieve improvements in cardiometabolic health as well as evaluate the impact TRF has …

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The Effect Of Neuromuscular Electrical Stimulation On Metabolic Changes In A Sedentary Population: A Pilot Study, Michelle Galvan, Jasmin Jenkins, Sudip Bajpeyi Feb 2019

The Effect Of Neuromuscular Electrical Stimulation On Metabolic Changes In A Sedentary Population: A Pilot Study, Michelle Galvan, Jasmin Jenkins, Sudip Bajpeyi

International Journal of Exercise Science: Conference Proceedings

The Centers for Disease Control and Prevention (2015) declared that 80% of U.S. adults do not meet exercise recommendations by ACSM. Skeletal muscle contraction has been shown to increase mitochondrial content (energy production) and glucose uptake (decreased insulin resistance). Neuromuscular Electrical Stimulation (NMES) utilizes electrical impulses to induce muscle contractions and can be used as an alternate strategy to induce muscle contraction in sedentary adults. However, it is not clear if NMES induced muscle contraction may improve insulin sensitivity and metabolic health. PURPOSE: The purpose of this study was to investigate the effects of two weeks of NMES on …

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Potato Ingestion As An Effective Race Fuel Alternative To Improve Cycling Performance In Trained Cyclists, Amadeo F. Salvador M.S., Colleen F. Mckenna M.S.,R.D., Rafael A. Alamilla B.S., Ryan Cloud, Adriana Miltko, Alex R. Keeble, Alexander V. Ulanov Phd, Scott A. Paluska M.D., Elizabeth Broad Phd, Nicholas A. Burd Phd Feb 2019

Potato Ingestion As An Effective Race Fuel Alternative To Improve Cycling Performance In Trained Cyclists, Amadeo F. Salvador M.S., Colleen F. Mckenna M.S.,R.D., Rafael A. Alamilla B.S., Ryan Cloud, Adriana Miltko, Alex R. Keeble, Alexander V. Ulanov Phd, Scott A. Paluska M.D., Elizabeth Broad Phd, Nicholas A. Burd Phd

International Journal of Exercise Science: Conference Proceedings

Carbohydrate (CHO) ingestion is an established strategy to improve endurance performance. Race fuels should not only sustain performance, but also be readily digested and absorbed and replenish electrolytes. Potatoes are a cost-effective option that fulfills these criteria; however, their impact on endurance performance remains unexamined. PURPOSE: Compare the effects of potato purée (POT) ingestion during endurance cycling on subsequent performance versus commercial CHO gel (GEL) or a control (water, CTL). METHODS: Twelve trained cyclists (31±9y; 71±8kg; VO2max: 61±9mL/kg/min) consumed a standardized breakfast then performed a 2h cycling challenge (60-85%VO2max) followed by a time trial (6kJ/kg body mass) while …

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Effects Of Fatty Acid Composition In A High Fat Diet On Skeletal Muscle Mitochondrial Content, Isaac N. Gandara, Shaan Naughton, Lannie O'Keefe, Anna Simcocks, Deanne Hryciw, Michael Mathai, Andrew Mcainch, Sudip Bajpeyi Feb 2019

Effects Of Fatty Acid Composition In A High Fat Diet On Skeletal Muscle Mitochondrial Content, Isaac N. Gandara, Shaan Naughton, Lannie O'Keefe, Anna Simcocks, Deanne Hryciw, Michael Mathai, Andrew Mcainch, Sudip Bajpeyi

International Journal of Exercise Science: Conference Proceedings

High fat diets (HFD) have been shown to impair skeletal muscle mitochondrial content and function, resulting in impaired lipid oxidation and insulin resistance. However, it is not well understood how the type of fatty acid (mixed fats, monounsaturated fatty acids (MUFA; predominately oleic acid) and polyunsaturated fatty acids (PUFA; primarily linoleic acid)) affects mitochondrial content. PURPOSE: The purpose of this study was to determine the effects of HFD, differing in the major type of fatty acids, on skeletal muscle mitochondrial content. METHODS: Male Sprague Dawley rats were fed a Western-style (21% by weight; 41% total energy) HFD for …

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A Family History Of Type 2 Diabetes Does Not Impact Skeletal Muscle Lipid Content, Jasmin Jenkins, Sudip Bajpeyi Feb 2019

A Family History Of Type 2 Diabetes Does Not Impact Skeletal Muscle Lipid Content, Jasmin Jenkins, Sudip Bajpeyi

International Journal of Exercise Science: Conference Proceedings

A high intramyocellular lipid (IMCL) has been associated not only with insulin resistance, obesity, and type 2 diabetes; but also in insulin sensitive endurance trained athletes – known as “athlete’s paradox”. A family history of type 2 diabetes (FH+) has been shown as a risk factor for the development of insulin resistance and type 2 diabetes (T2D). However, it is unclear whether a FH+ affects IMCL content and exercise induced changes in IMCL when compared to those without a family history of type 2 diabetes (FH-). PURPOSE: The purpose of this study were 1) to compare IMCL content between …

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The Effects Of A Single Bout Of Endurance Exercise On Glucose Transporter-4 (Glut-4) Content, Manuel Gomez, Sudip Bajpeyi Feb 2019

The Effects Of A Single Bout Of Endurance Exercise On Glucose Transporter-4 (Glut-4) Content, Manuel Gomez, Sudip Bajpeyi

International Journal of Exercise Science: Conference Proceedings

Glucose Transporter protein-4 (GLUT-4) is considered the predominant glucose transporter in skeletal muscle. Exercise has been shown to increase glucose uptake and GLUT-4 protein content in skeletal muscle following muscle contraction. PURPOSE: To determine the acute effects of a single bout of moderate intensity endurance exercise on skeletal muscle GLUT-4 content. METHODS: 10 healthy male volunteers (age: 24.4 ± 1.3 years; BMI 23.16 ± 0.60 kg/m²) participated in a single bout of endurance exercise on a cycle ergometer at 65% maximal aerobic capacity (VO2max) for 1.5 – 2.0 hours (650kcal). Muscle biopsies were obtained from the vastus …

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Intra-Day Variation In Lean Body Mass And Skeletal Muscle Mass Measures: A Pilot Study, Noe Deanda, Jordan B. Wainwright, Jeb F. Struder, Daniel Newmire Feb 2019

Intra-Day Variation In Lean Body Mass And Skeletal Muscle Mass Measures: A Pilot Study, Noe Deanda, Jordan B. Wainwright, Jeb F. Struder, Daniel Newmire

International Journal of Exercise Science: Conference Proceedings

Lean body mass (LBM) and its estimated measure of skeletal muscle mass (SKMM) is ~30 to ~40 % of total body weight. Measuring SKMM is an important assessment for both exercise and nutritional research. There is biological variation in dual X-ray absorptiometry (DXA) estimates related to subject presentation, changes in tissue hydration, as well as GI tract contents. PURPOSE: The purpose of this study is to examine how normal activities (e.g. eating, sleeping, exercise) influence LBM and SKMM measures using DXA in college students. METHODS: (Mean ± SEM; n = 42; Age: 26.9 ± 0.4 y; ht: 169.2 …

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Exercise Leads To Increase In Smaller Lipid Droplet Morphology In Peripheral Region Of Muscle Fiber, Victoria Rosas Feb 2019

Exercise Leads To Increase In Smaller Lipid Droplet Morphology In Peripheral Region Of Muscle Fiber, Victoria Rosas

International Journal of Exercise Science: Conference Proceedings

In a previous study, we have shown that high fat overfeeding results in decreased smaller lipid droplet density in the peripheral region of skeletal muscle fiber. This decrease was associated with high fat overfeeding induced weight gain and insulin resistance. However, it is not clear whether an acute bout of exercise (elevated fat oxidation state) affects lipid droplet size. PURPOSE: To determine the effects of a single bout of endurance exercise on skeletal muscle lipid content and lipid droplet size. METHODS: Ten healthy male volunteers (Mean ± SEM; age: 23.11 ± 0.98; BMI: 23.27 ± 0.50 kg/m2) participated …

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Effects Of Exercise Modes To Improve Insulin Sensitivity And Fat Oxidation In Obese And Patients With Type 2 Diabetes – A Meta-Analysis., Mario Garcia, Sudip Bajpeyi Feb 2019

Effects Of Exercise Modes To Improve Insulin Sensitivity And Fat Oxidation In Obese And Patients With Type 2 Diabetes – A Meta-Analysis., Mario Garcia, Sudip Bajpeyi

International Journal of Exercise Science: Conference Proceedings

Exercise is effective in improving insulin sensitivity (IS) and resting fat oxidation in an obese and population with type 2 diabetic (T2D). However, most Americans do not adhere to the ACSM recommended exercise guidelines. The effectiveness of different exercise modes to improve IS and resting fat oxidation in obese and T2D individuals is unknown. PURPOSE: The purpose of this study was to compare the 1) effects of aerobic, resistance, and combination exercise training and 2) to determine the role of volume and intensity (aerobic) and repetitions and sets (resistance) on exercise induced improvements in IS and resting lipid oxidation …

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A Comparison Of High-Intensity Interval Exercise And Continuous Moderate-Intensity Exercise On Postprandial Metabolism: A Pilot Analysis., David J. Buckley, Broderick L. Dickerson, James R. Rowe Jr Feb 2019

A Comparison Of High-Intensity Interval Exercise And Continuous Moderate-Intensity Exercise On Postprandial Metabolism: A Pilot Analysis., David J. Buckley, Broderick L. Dickerson, James R. Rowe Jr

International Journal of Exercise Science: Conference Proceedings

Both moderate-intensity continuous exercise (MICE) (performed for ≥ 1 hour) and high-intensity interval exercise (HIIE) (performed for ≤ 30 minutes) has been reported to reduce the magnitude of postprandial lipemia and glycemia. It is unclear if low-volume MICE and HIIE performed for a similar duration and expending similar amounts of energy would have a comparable or different effect on postprandial lipemia or glycemia. PURPOSE: Examine the effects of low-volume MICE and HIIE on postprandial glucose, insulin, and triglyceride (TG) concentration following a mixed meal (MM) ingested at 0.5 hours and 15.5 hours post-exercise. METHODS: Recreationally active men (n = …

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Curcumin And Boswellia Serrata Supplementation Result In Reduced Inflammation Following Eccentric Leg Press Exercise, Asheal A. Davis, Elizabeth A. Tanner, Melody A. Gary, Brian K. Mcfarlin Feb 2019

Curcumin And Boswellia Serrata Supplementation Result In Reduced Inflammation Following Eccentric Leg Press Exercise, Asheal A. Davis, Elizabeth A. Tanner, Melody A. Gary, Brian K. Mcfarlin

International Journal of Exercise Science: Conference Proceedings

Repetitive exercise on consecutive days is a key component of many long-term training plans. This type of exercise results in muscle inflammation and soreness that limits the capacity to sustain exercise at a high effort. Several dietary polyphenols have the capacity to manage inflammation and thus supplementation may be an effective component of a long-term training plan. PURPOSE:The purpose of this study was to investigate the effect of combined oral supplementation with curcumin and boswellia serrata prior to and following three consecutive days of intense interval exercise. METHODS:All protocols were approved by the University IRB committee and participants …

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Inflammation-Associated Rna Signaling Is Reduced Following A Half-Marathon Race When Supplemented With Curcumin And A Pomegranate Extract, Elizabeth A. Tanner, Melody A. Gary, Asheal A. Davis, Brian K. Mcfarlin Feb 2019

Inflammation-Associated Rna Signaling Is Reduced Following A Half-Marathon Race When Supplemented With Curcumin And A Pomegranate Extract, Elizabeth A. Tanner, Melody A. Gary, Asheal A. Davis, Brian K. Mcfarlin

International Journal of Exercise Science: Conference Proceedings

Prolonged endurance exercise performances provide a unique model for investigating the combined effects of oxidative stress and eccentric muscle contraction on differential gene expression with nutritional interventions known to blunt inflammation. Dietary polyphenols (i.e. curcumin, pomegranate, etc.) have been shown to reduce exercise-induced inflammation associated mRNA and protein expression with fewer side effects than NSAIDs. PURPOSE: To investigate the effect of combined curcumin (500-1000 mg/d; Longvida®) and pomegranate extract (500-1000 mg/d; Pomella®) supplement for 30-days on mRNA expression following a half marathon race. METHODS: All protocols were approved by the University IRB committee and participants gave written informed consent. Participants …

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Using Dietary Polyphenols To Manage Post Exercise Inflammation, Melody A. Gary, Elizabeth A. Tanner, Brian K. Mcfarlin, Asheal A. Davis Feb 2019

Using Dietary Polyphenols To Manage Post Exercise Inflammation, Melody A. Gary, Elizabeth A. Tanner, Brian K. Mcfarlin, Asheal A. Davis

International Journal of Exercise Science: Conference Proceedings

Individuals participating in prolonged exercise sessions and associated training experience regular inflammation and muscle soreness. Natural products with known anti-inflammatory and/or oxidative stress blocking effects represent attractive options to traditional NSAID treatments. PURPOSE: To investigate the effect of combined curcumin (500-1000 mg/d; Longvida®), pomegranate extract (500-1000 mg/d; Pomella®), and Methylsulfonylmethane (500-1000 mg/d; OptiMSM®) supplement for 30-days on protein inflammatory biomarkers, inflammation-associated RNA, and oxidative. METHODS: All protocols were approved by the University IRB committee and participants gave written informed consent. Subjects were supplemented for 30-d prior to the half marathon race. Venous blood samples were collected for serum or RNA …

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Case Presentation For Supraspinatus Tendinitis And Lateral Epicondylitis, Moussa Maatouk, Vered Arbel, Mehran Sorouri, Tal Amasay Feb 2019

Case Presentation For Supraspinatus Tendinitis And Lateral Epicondylitis, Moussa Maatouk, Vered Arbel, Mehran Sorouri, Tal Amasay

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY: The patient is a 48-year-old female who is a full-time mother and enjoys horseback riding and walking her dog. She recently sought treatment for pain accompanied with limited mobility in her right shoulder. These acute conditions came about after the subject experienced an accidental fall while getting onto a horse, in which she had to suddenly fully extend her right arm behind her against a wall to catch herself from falling. Prior to the event, the subject had sought treatment for pain in her right elbow. An orthopedic surgeon diagnosed her with right lateral epicondylitis and prescribed …

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Effects Of Caffeine Dose Timing On The Time-Course Of Diuresis During Sodium-Aided Hyperhydration, Phillip D. Wickenheiser, Shelby Greene, Elizaveta Roslanova, Dave Morris Feb 2019

Effects Of Caffeine Dose Timing On The Time-Course Of Diuresis During Sodium-Aided Hyperhydration, Phillip D. Wickenheiser, Shelby Greene, Elizaveta Roslanova, Dave Morris

International Journal of Exercise Science: Conference Proceedings

When used alone, both caffeine and sodium-aided hyperhydration (SAH) can be ergogenic. Caffeine, when used with SAH, promotes diuresis, but hyperhydration can be achieved, albeit at lower levels than with SAH alone. In previous caffeine and SAH work, caffeine induced diuresis occurred only within 15 min of consumption of a bolus of caffeine, NaCl, and H2O. This suggests that caffeine-induced diuresis may occur for only 15 min after its consumption, and/or that the diuretic effect of caffeine is dependent on hydration levels. Caffeine has been shown to be ergogenic when taken as little as 5 min before exercise; …

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Effects Of Caffeine Dose Timing On Total Urine Excretion During Sodium-Aided Hyperhydration Protocols, Shelby L. Greene, David M. Morris Feb 2019

Effects Of Caffeine Dose Timing On Total Urine Excretion During Sodium-Aided Hyperhydration Protocols, Shelby L. Greene, David M. Morris

International Journal of Exercise Science: Conference Proceedings

When used alone, both caffeine and sodium-aided hyperhydration (SAH) can be ergogenic. Although caffeine use in conjunction with SAH promotes diuresis, hyperhydration can be achieved, albeit at lower levels compared to SAH alone. Previous caffeine and SAH work has suggested most of the caffeine induced diuresis occurs within 15 min of consumption of a bolus of caffeine, sodium and water. This response suggests that caffeine-induces diuresis for only 15 min following its consumption, and/or that the diuretic effects of caffeine are dependent on hydration levels. PURPOSE: To determine the effects of caffeine, consumed at different time-points, on diuresis during SAH …

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Muscle Glycogen Depletion And Replenishment: A Meta-Analytic Review, Ian Macklin, Frank Wyatt, Malaeni Ramos, Grant Ralston Feb 2019

Muscle Glycogen Depletion And Replenishment: A Meta-Analytic Review, Ian Macklin, Frank Wyatt, Malaeni Ramos, Grant Ralston

International Journal of Exercise Science: Conference Proceedings

Muscle glycogen depletion and replenishment rates have been associated with sport performance, biomechanical movement and immune system alterations. PURPOSE: the purpose of this study is to determine, through a meta-analytic review, the mechanisms of muscle glycogen depletion and replenishment. METHODS: A systematic literature review and meta-analysis research design was utilized. Inclusion-exclusion criteria were the following: Glycogen depletion- replenishment studies; subjects in studies had no pathologies; human and animal studies were accepted; Studies with diet manipulation were accepted; articles accepted for coding were peer reviewed, original publications. Coded studies were summarized and statistically analyzed. Coded variables were presented as …

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Validity And Wearability Of Consumer-Based Fitness Trackers In Free-Living Children, Keith Brazendale, Lindsay Decker, Ethan T. Hunt, Michelle W. Perry, Allison B. Brazendale, R Glenn Weaver, Michael W. Beets Feb 2019

Validity And Wearability Of Consumer-Based Fitness Trackers In Free-Living Children, Keith Brazendale, Lindsay Decker, Ethan T. Hunt, Michelle W. Perry, Allison B. Brazendale, R Glenn Weaver, Michael W. Beets

International Journal of Exercise Science

International Journal of Exercise Science 12(5): 471-482, 2019. Over the past decade wearable fitness trackers (WFTs) have grown in popularity with more recent versions able to capture the pulse rate noninvasively on the wrist of the wearer. Most of evidence on the validity of WFTs have explored adults in clinical settings. Thus, the purpose of this study is to 1) evaluate the validity of a wrist-placed WFT in determining heart rate, and 2) examine the wear compliance of a wrist-placed WFT, in children in free-living settings. In study 1, 19 children (5-12yrs) wore a Fitbit Charge HR© and a …

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Body Composition And Perceived Stress Through A Calendar Year In Ncaa I Female Volleyball Players, Hayden W. Hyatt, Andreas N. Kavazis Feb 2019

Body Composition And Perceived Stress Through A Calendar Year In Ncaa I Female Volleyball Players, Hayden W. Hyatt, Andreas N. Kavazis

International Journal of Exercise Science

International Journal of Exercise Science 12(5): 433-443, 2019. The aim of the study was to track changes of perceived stress and body composition across an entire calendar year in National Collegiate Athletic Association (NCAA) division I female volleyball players. We hypothesized that perceived stress and body composition would vary between the competitive season and off-season, with the largest changes occurring during time points prior to the onset and after the end of the competitive season. Eight female volleyball players participated in a longitudinal study. Body mass, body mass index (BMI), percent body fat, fat mass, and fat free mass were …

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Acute Effects Of L-Arginine Supplementation On Oxygen Consumption Kinetics And Muscle Oxyhemoglobin And Deoxyhemoglobin During Treadmill Running In Male Adults, Claudia M. Meirelles, Cristiane Matsuura, Roberto Silva Jr., Felipe F. Guimaraes, Paulo Sergio C. Gomes Feb 2019

Acute Effects Of L-Arginine Supplementation On Oxygen Consumption Kinetics And Muscle Oxyhemoglobin And Deoxyhemoglobin During Treadmill Running In Male Adults, Claudia M. Meirelles, Cristiane Matsuura, Roberto Silva Jr., Felipe F. Guimaraes, Paulo Sergio C. Gomes

International Journal of Exercise Science

International Journal of Exercise Science 12(2): 444-455, 2019. L-arginine is used as a nitric oxide related supplement intended to improve sports performance, and to enhance muscular recovery during exercise. However, the literature is inconclusive. The aim of this study was to determine the effects of acute oral L-arginine supplementation on O2 consumption kinetics and local muscle blood volume and oxygenation during treadmill running at two different intensities. Using a double-blind, crossover and placebo-controlled design, 11 young healthy male adults were randomly assigned to 6 g of L-arginine (ARG) or placebo (PLA) supplementation that was ingested 60 min before the exercise …

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Caffeine Alters Rpe-Based Intensity Production, Tyler Langford, Eric O'Neal, Eric M. Scudamore, Samantha Johnson, Caitlin Stevenson, Veronika Pribyslavska, Matt Green Feb 2019

Caffeine Alters Rpe-Based Intensity Production, Tyler Langford, Eric O'Neal, Eric M. Scudamore, Samantha Johnson, Caitlin Stevenson, Veronika Pribyslavska, Matt Green

International Journal of Exercise Science

International Journal of Exercise Science 12(6): 412-424, 2019. This study examined effects of caffeine (CAF) on power output (PO) selection and associated physiological responses during cycling at moderate and high intensities prescribed by RPE (0-10 scale). Participants (n = 9) (VO2peak: 55.4 ± 6.32 mL · kg-1 · min-1) cycled for 20 min at RPE4 and 20 min at RPE7 separated by 10 min recovery following caffeine (CAF) (6 mg · kg-1) and placebo (PLA) ingestion. PO, HR, serum lactate [La], VO2, VE, and RER were recorded every 5 min. Session RPE (S-RPE) was recorded following 10 min recovery. Repeated-measures …

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Evaluation Of Earbud And Wristwatch Heart Rate Monitors During Aerobic And Resistance Training, Jennifer A. Bunn, Elizabeth K. Wells, John P. Manor, Michael J. Webster Feb 2019

Evaluation Of Earbud And Wristwatch Heart Rate Monitors During Aerobic And Resistance Training, Jennifer A. Bunn, Elizabeth K. Wells, John P. Manor, Michael J. Webster

International Journal of Exercise Science

International Journal of Exercise Science 12(4): 374-384, 2019. Assessment of biometrics during exercise is evolving to create devices that are “all-inclusive", in an effort to decrease the number of devices required during exercise while providing comprehensive and accurate biometric measures. The purpose of this study was to determine the accuracy of two optical heart rate monitors, the Jabra earbud and the Mio Alpha wristwatch, during aerobic and anaerobic exercise. Twenty-two recreationally active participants (25.4 ± 6.9 years, 171 ± 11 cm, 73.9 ± 3.1 kg, and 25.2 ± 9.2% body fat) completed this study. Participants completed 30 minutes of treadmill …

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Intermittent Pneumatic Compression Boot Use Elevates Blood Lactate During Subsequent Exercise, Richard T. Marcello, Lucas Fortini, Beau Kjerulf Greer Feb 2019

Intermittent Pneumatic Compression Boot Use Elevates Blood Lactate During Subsequent Exercise, Richard T. Marcello, Lucas Fortini, Beau Kjerulf Greer

International Journal of Exercise Science

International Journal of Exercise Science 12(2): 385-392, 2019. The purpose of the present study was to investigate the influence of intermittent pneumatic compression (IPC) boot use between submaximal cycling trials on heart rate (HR) and blood lactate concentrations. Ten healthy participants (9M; 1F) performed two consecutive 60 minute rides at 60% of functional threshold power with a 30 minute rest between rides. The rest period was spent in a supine position using IPC boots (BOOT) or sitting in a similar position without boots (CON). HRs were collected every 15 minutes during cycling rides, and lactate was measured at the 30-minute …

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The Effects Of Pre-Workout Supplementation On Anaerobic Power And Maintenance Of Power In College Students, Christine T. Herbe, M. Travis Byrd, Taylor K. Dinyer, Brian J. Wallace, Haley C. Bergstrom Feb 2019

The Effects Of Pre-Workout Supplementation On Anaerobic Power And Maintenance Of Power In College Students, Christine T. Herbe, M. Travis Byrd, Taylor K. Dinyer, Brian J. Wallace, Haley C. Bergstrom

International Journal of Exercise Science

International Journal of Exercise Science 12(2): 355-365, 2019. This study examined the effects of Assault™ pre-workout supplementation on peak power output (PP), mean power output (MP), and percent decline in power output (% decline) during repeated, Wingate anaerobic tests. Thirteen healthy, physically active participants (7 male, 6 female) completed the randomized, double-blind, placebo-controlled crossover design with two conditions, supplement and placebo. The participants visited the laboratory for a total of three visits, 2-7 days apart. During visit 1, the participants completed a 4-minute familiarization warm-up on the Monark cycle ergometer and performed one baseline, 30-second Wingate cycle ergometry test. During …

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Development Of The Physical Activity Tracking Preference Questionnaire, Emily Fu, Marney A. White, Jaclyn M. W. Hughto, Bella Steiner, Erik Willis Jan 2019

Development Of The Physical Activity Tracking Preference Questionnaire, Emily Fu, Marney A. White, Jaclyn M. W. Hughto, Bella Steiner, Erik Willis

International Journal of Exercise Science

International Journal of Exercise Science 12(5): 297-309, 2019. The present study aims to develop the Physical Activity Tracking Preference Questionnaire (PATPQ), a measure of unit (distance, steps, calories, minutes) preference for tracking physical activity. The PATPQ was developed in two phases. During Phase One, the initial PATPQ was created (24 items), was assessed by an expert panel for face validity, and tested in 557 adults. Results were used to revise and modify the PATPQ. In Phase Two, the item pool was expanded and tested in 374 adults. Kuder‐Richardson Formula 20 scores for internal consistency and interclass correlations for test-retest reliability …

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Concordance Among Bioelectrical Impedance Analysis Measures Of Percent Body Fat In Athletic Young Adults, Benjamin M. Carrion, Ashley Wells, Jerry L. Mayhew, Alexander J. Koch Jan 2019

Concordance Among Bioelectrical Impedance Analysis Measures Of Percent Body Fat In Athletic Young Adults, Benjamin M. Carrion, Ashley Wells, Jerry L. Mayhew, Alexander J. Koch

International Journal of Exercise Science

International Journal of Exercise Science 12(4): 324-331, 2019. The purpose of this investigation was to determine the agreement among three bioelectrical impedance analysis devices (BIA) in athletic young adults. Fifty-one participants (26 men and 25 women) were assessed for percent body fat (PBF) using an arm-to-arm bipolar single-frequency device (ABIA), a leg-to-leg single-frequency device (LBIA), and an octopolar multi-frequency BIA device (MFBIA). PBF was measured with the three devices in a randomized, counterbalanced order. Repeated measures ANOVA revealed significant (p < 0.001) differences in PBF estimates among all devices (ABIA = 19.1 ± 7.2%, LBIA = 21.6 ±7.5%, and MFBIA = 22.9 ± 8.8%). Pearson’s Correlations revealed a strong relationship between ABIA and MFBIA in both men (r = 0.948) and women (r = 0.947) and a moderately-strong relationship between LBIA and MFBIA (r …

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Antioxidant Supplementation Impairs Changes In Body Composition Induced By Strength Training In Young Women, Maurilio T. Dutra, Savio Alex, Alyson F. Silva, Lee E. Brown, Martim Bottaro Jan 2019

Antioxidant Supplementation Impairs Changes In Body Composition Induced By Strength Training In Young Women, Maurilio T. Dutra, Savio Alex, Alyson F. Silva, Lee E. Brown, Martim Bottaro

International Journal of Exercise Science

International Journal of Exercise Science 12(2): 287-296, 2019. Strength training (ST) is known to promote muscle hypertrophy and body composition adaptations. However, only a few studies investigated the effects of ST combined with antioxidant supplementation (AS) on these adaptations. The aim of this study was to investigate chronic effects of ST combined with AS on fat mass (FM) and fat-free mass (FFM) of young women. In a double-blinded design, thirty-three subjects (22.9 ± 2.5 years, 57.7 ± 8.4 kg, 1.6 ± 0.6 m) were allocated into three groups: 1) vitamins (n=12), 2) placebo (n=11) and 3) control (n=10). Vitamins and …

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