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Full-Text Articles in Sports Sciences
Validity And Reliability Of The Garmin Instinct In Measuring Heart Rate During Pickleball, Setareh Zarei, Samantha Cruz, Tashari A. Carballo, Bryson Carrier, Dustin W. Davis, Jae Bovell, Thea Sweder, Matahn Blank, Elias M. Malek, James W. Navalta
Validity And Reliability Of The Garmin Instinct In Measuring Heart Rate During Pickleball, Setareh Zarei, Samantha Cruz, Tashari A. Carballo, Bryson Carrier, Dustin W. Davis, Jae Bovell, Thea Sweder, Matahn Blank, Elias M. Malek, James W. Navalta
International Journal of Exercise Science: Conference Proceedings
Playing a racquet sport called pickleball is increasing in popularity every day in the United States. Garmin is a popular brand that manufactures wearable fitness trackers capable of measuring heart rate (HR). Because HR is a common way to determe exercise intensity, the validity and reliability of wearables to provide accurate HR during pickleball is important. PURPOSE: This study aimed to analyze and assess the validity and reliability of HR from the Garmin Instinct vs. Polar H10 (criterion) during pickleball. METHODS: Eleven adults (2 female, 8 male, 1 prefer not to disclose; age = 28.1 ± 9.2 years; …
Stress And Eating Behaviors Pre- And Post Covid-19 Pandemic Declaration In A Sample Of College-Aged Adults, Megan Bratetic, Michelle Nguyen, Makenna Peterson, Anthony Acevedo, Zachary Zeigler
Stress And Eating Behaviors Pre- And Post Covid-19 Pandemic Declaration In A Sample Of College-Aged Adults, Megan Bratetic, Michelle Nguyen, Makenna Peterson, Anthony Acevedo, Zachary Zeigler
International Journal of Exercise Science: Conference Proceedings
Purpose: This study compared stress and eating behaviors pre- and post-COVID-19 pandemic in college students. METHODS: This was a non-experimental comparative study. Participants were invited to the laboratory for a single visit to measure eating behaviors and stress indicators. Four instruments were used in this study: The Weight and Lifestyle Inventory questionnaire, the Mindfulness Eating Questionnaire, the Three-Factor Eating Questionnaire, and the Perceived Stress Scale. Independent t-test and a two-way ANOVA were used to compare participants who were tested before the COVID-19 pandemic declaration and after. RESULTS: N=151 (n=81 male, n=70 female) participants completed pre-covid testing, and a separate group, …
Assessing The Reliability Of Stryd 27 For Variable Speed Running, Kathryn A. Lavin, Dustin W. Davis, Matahn Blank, Tashari A. Carballo, Elias M. Malek, Thea Sweder, Eric Lambert, Nicole Argueta, Marcus M. Lawrence, Jeffrey Cowley, James W. Navalta
Assessing The Reliability Of Stryd 27 For Variable Speed Running, Kathryn A. Lavin, Dustin W. Davis, Matahn Blank, Tashari A. Carballo, Elias M. Malek, Thea Sweder, Eric Lambert, Nicole Argueta, Marcus M. Lawrence, Jeffrey Cowley, James W. Navalta
International Journal of Exercise Science: Conference Proceedings
Wearable technology is beneficial when it comes to tracking and optimizing performance. The Stryd 27 is a wearable footpod marketed as being more responsive in measuring power during running than the previous version (Stryd 25). However, the reliability of this newer device to return consistent values has not been determined. PURPOSE: This study aimed to observe whether Stryd 27 gives reliable metrics during variable speed running. METHODS: Sixteen participants (N = 16; 50% female; height = 174.1 ± 8.1 cm; mass = 73.0 ± 12.4 kg) were recruited, each equipped with two Stryd 27 footpods (updated to the same …
The Effect Of Aicar-Induced Ampk Activation On Gene Expression In Sarcopenic Muscle, Daniel M. Rasch, Steven D. Dray, Jouber Dos Santos, Shalene E. Wilcox, David M. Thomson
The Effect Of Aicar-Induced Ampk Activation On Gene Expression In Sarcopenic Muscle, Daniel M. Rasch, Steven D. Dray, Jouber Dos Santos, Shalene E. Wilcox, David M. Thomson
International Journal of Exercise Science: Conference Proceedings
The loss of muscle mass and function (sarcopenia) afflicts 11-74% of all aging adults, with prevalence increasing with age. Exercise training is clearly effective in preventing or attenuating sarcopenia. The cellular mechanisms of exercise’s protective effects are not entirely clear, but AMP-activated protein kinase (AMPK) is thought to play an important role, in part by regulating gene expression. PURPOSE: To determine the effect of chronic pharmacological AMPK activation on skeletal muscle gene expression in sarcopenic muscle. METHODS: 24-month-old C57Bl/6J mice received either one acute injection or chronic daily saline injections of the AMPK-activating drug AICAR for 31 days. …
Multiple Stress Fractures And Low Energy Availability In Female Recreational Runners, Malorie Wilwand, Marissa Miles, Kelly Pritchett, Robert Pritchett, Abigail Larson
Multiple Stress Fractures And Low Energy Availability In Female Recreational Runners, Malorie Wilwand, Marissa Miles, Kelly Pritchett, Robert Pritchett, Abigail Larson
International Journal of Exercise Science: Conference Proceedings
Low energy availability (LEA) is the underlying factor for Relative Energy Deficiency in Sport which includes a facet of bone health. Stress fractures (SF) are common injuries among runners. The prevalence of coexisting LEA and multiple SF in recreational runners is unknown. PURPOSE: The purpose is 1) to assess the prevalence of multiple SF and risk of LEA among recreational female runners 2) to compare current eating disorders, body weight dissatisfaction, and restrictive eating behaviors between females with a history of SF and those with ≤ 1 SF. METHODS: Female noncompetitive, recreational runners (running > 10 miles/week, 18-25 years …
Trends In Weightlifting Injuries In Pediatric And Adult Populations: 2013 – 2022, Tolulope Popoola, Daniel Novak
Trends In Weightlifting Injuries In Pediatric And Adult Populations: 2013 – 2022, Tolulope Popoola, Daniel Novak
International Journal of Exercise Science: Conference Proceedings
Weightlifting can serve as a valuable exercise method for managing obesity and preparing young individuals for sports, provided it is carried out under the guidance of qualified experts and with proper safety measures in mind. Nevertheless, the persistent worry about the potential for injuries remains a significant factor behind the hesitancy of medical professionals in endorsing weightlifting for pediatric populations. PURPOSE: To determine whether there are differences in rates and types of injury associated to weightlifting across different age groups. METHODS: Information regarding weight training injuries was collected from the National Electronic Injury Surveillance System of the US …
Effects Of Acute Late Sleep Restriction On Strength, Power, And Running Speed In Recreationally Active Females, Karolina Iznerowicz, Jared W. Coburn, Sydney Leisz, Trevor Gillum, Michael Robinson, William Boyer
Effects Of Acute Late Sleep Restriction On Strength, Power, And Running Speed In Recreationally Active Females, Karolina Iznerowicz, Jared W. Coburn, Sydney Leisz, Trevor Gillum, Michael Robinson, William Boyer
International Journal of Exercise Science: Conference Proceedings
Previous research suggests that late sleep restriction (SR) paired with exercise in the morning does not have a significant impact on sport performance measures. However, this evidence is based on research conducted primarily in males. PURPOSE: To examine the effects of late sleep restriction on measures of strength, speed, and power among recreationally active females. METHODS: Twenty-three (23) recreationally active (aerobic physical activity and resistance exercise at least three times a week for six months) females participated in this study (mean age 21.5 years, BMI 23 kg/m2). A randomized, cross-over design was used under two conditions, recommended sleep …
Intra- And Inter-Day Variability In Recess Physical Activity Over One Week In Young Children, Katherine L. Mckee, Kimberly A. Clevenger
Intra- And Inter-Day Variability In Recess Physical Activity Over One Week In Young Children, Katherine L. Mckee, Kimberly A. Clevenger
International Journal of Exercise Science: Conference Proceedings
Researchers interested in outdoor free play (i.e., recess) may collect data on total (light-to-vigorous) physical activity (TPA) during a single recess period or over several days, yet little is known about intra- and inter-day variability or whether individual recess periods or days are representative of “typical” recess TPA. PURPOSE: The purpose of the current study was to explore variability in TPA across a week of recess periods with the overarching goal of identifying how many recess periods may be needed to represent weekly recess TPA. METHODS: Children (n=29; age=2-6 y) from two on-campus early childhood education programs which shared a …
N-95 Masks Have No Effect On Spontaneous Physical Activity, Dalton Lesser, Jake Laufenberg, Zachary Zeigler
N-95 Masks Have No Effect On Spontaneous Physical Activity, Dalton Lesser, Jake Laufenberg, Zachary Zeigler
International Journal of Exercise Science: Conference Proceedings
In recent years, the use of facemasks has greatly increased, especially due to the onset of the COVID-19 pandemic. Many individuals were required to wear a face mask for long durations. The impact of mask wearing on spontaneous physical activity (PA) is unknown. PURPOSE: This study seeks to determine if wearing an N-95 mask for extended duration would have any impact on spontaneous physical activity. METHODS: 12 total participants aged 18-21 yr. were recruited for this experimental cross-over study. Subjects reported to the lab twice, separated by one week, to receive a wrist-worn accelerometer. One condition was control …
Validity Of Ultrasound Imaging Of Abductor Hallucis Volume Demonstrated By Strong Agreement With Mri, Emma Robinson, Jacob Willes, Derek Swanson, Dallin Swanson, Joshua Sponbeck, Wayne Johnson
Validity Of Ultrasound Imaging Of Abductor Hallucis Volume Demonstrated By Strong Agreement With Mri, Emma Robinson, Jacob Willes, Derek Swanson, Dallin Swanson, Joshua Sponbeck, Wayne Johnson
International Journal of Exercise Science: Conference Proceedings
Intrinsic foot muscles such as abductor hallucis (ABDH) are crucial for function and mobility while influencing quality of life. Thus, being able to accurately measure foot muscle volume is important. While magnetic resonance imaging (MRI) is often considered to be the reference standard of medical imaging, ultrasound (US) provides a cost effective, rapid and dynamic way of assessing muscle size and function. PURPOSE: To investigate the validity and intratester reliability of US imaging in assessing ABDH volume compared to MRI. METHODS: US and MRI were employed to measure the right and left ABDH muscle volume involving 9 participants (females = …
Reporting On Pilot Experiences In A Multi-Phased Fidelity Study Of An Equipment-Based Resistance Program For Older Adults, Rodolfo Mejia, Nasim Eyvazlou, Cody Antonio, Marlene Villa, Alexandra Auslander, Zakkoyya H. Lewis, Lara Killick
Reporting On Pilot Experiences In A Multi-Phased Fidelity Study Of An Equipment-Based Resistance Program For Older Adults, Rodolfo Mejia, Nasim Eyvazlou, Cody Antonio, Marlene Villa, Alexandra Auslander, Zakkoyya H. Lewis, Lara Killick
International Journal of Exercise Science: Conference Proceedings
Within the US, people are experiencing longer life expectancy, yet these extended lifespans have not necessarily translated into years living in good health. Research shows that regular resistance exercise carries distinct preventive health benefits for older adults. A growing body of literature explores interventions designed to engage older adults in resistance exercise. PURPOSE: The purpose of this study was to pilot the proposed assessment strategy for a multi-phased fidelity study of an equipment-based resistance training program designed specifically for older adults. METHODS: A three-phased study has been designed. Phase 1 consisted of a systematic literature review to identify salient measures …
Neck Flexors Bilateral Symmetry In Baseball Pitchers: A Unilateral Perspective, Ceren Acik, Stefan Keslacy, Christine Dy, Leila Rahnama
Neck Flexors Bilateral Symmetry In Baseball Pitchers: A Unilateral Perspective, Ceren Acik, Stefan Keslacy, Christine Dy, Leila Rahnama
International Journal of Exercise Science: Conference Proceedings
This study examines the potential asymmetry in flexor neck muscle characteristics, including thickness, size, strength, and neck flexion range of motion (ROM), in baseball players. Baseball involves repetitive unilateral actions, which may subject players to one-sided stress and strain due to the sport's explosive and high-speed movements. Specifically, pitchers and catchers, who perform frequent arm activities, are at higher risk of upper extremity injuries. PURPOSE: The study aimed to investigate if repeated throwing movements in baseball induce trophic changes in the neck muscles, particularly on the dominant side used for throwing. METHODS: Thirteen college baseball players and fifteen healthy controls …
Effects Of Gelatin Supplementation On Skeletal Muscle Recovery Following Eccentric Exercise, Rebecca R. Graham, Ana P. Carrasco, Brian E. Salgado, Andrew C. D'Lugos
Effects Of Gelatin Supplementation On Skeletal Muscle Recovery Following Eccentric Exercise, Rebecca R. Graham, Ana P. Carrasco, Brian E. Salgado, Andrew C. D'Lugos
International Journal of Exercise Science: Conference Proceedings
Exercise is a potent stimulus for skeletal muscle health. Strenuous exercise can result in exercise-induced muscle damage, characterized by soreness, inflammation, and impaired muscle function. Collagen supplementation has garnered attention as a means to improve muscle recovery and musculoskeletal health. Gelatin is a cost-effective and commercially available form of collagen supplementation. The impact of collagen supplementation, via gelatin, on muscle recovery following strenuous exercise is unknown. PURPOSE: To test the efficacy of collagen supplementation, via gelatin, on indices of skeletal muscle recovery following eccentric exercise. METHODS: Healthy, recreationally-active adults (28.4 ± 4.7 yrs; 5 M, 6 F; BMI: …
Engagement And A Sense Of Belonging In Kinesiology Undergraduate Students, Gema Arreguin, Evelyn Castellon, Sarah Dunn
Engagement And A Sense Of Belonging In Kinesiology Undergraduate Students, Gema Arreguin, Evelyn Castellon, Sarah Dunn
International Journal of Exercise Science: Conference Proceedings
A student's sense of belonging may promote success and retention during their undergraduate experience and could be influenced by co-curricular engagement (participation in community events organized by the home department). Even more important, an institution with a satellite “branch” campus offering less co-curricular events may see less sense of belonging in those particular students. PURPOSE: To assess undergraduate student sense of belonging based on co-curricular engagement and college campus and to investigate the findings in Kinesiology (KINE) students. METHODS: Public university students (18+ years) in California were recruited for an IRB approved Qualtrics survey in Spring 2023. Participants were asked …
Applied Learning Experiences, Belonging & Preparedness For Career In Undergraduate Kinesiology Students, Alejandro Campos, Juliana Perez Durazo, Sarah L. Dunn Ph.D
Applied Learning Experiences, Belonging & Preparedness For Career In Undergraduate Kinesiology Students, Alejandro Campos, Juliana Perez Durazo, Sarah L. Dunn Ph.D
International Journal of Exercise Science: Conference Proceedings
Applied “hands-on'' student learning experiences may help prepare them for future career success. Gaining knowledge on professional tasks, proficiency in job skills, or understanding workplace satisfaction are all factors to be explored prior to embarking on a career in the field/industry. In addition, a student's sense of belonging to their home “major” department when completing their bachelor's degree may be related to positive outcomes and the job market. Whether hands-on learning experiences are related to workforce/graduate school preparedness or a student's sense of belonging are yet to be determined (in all majors or specific to Kinesiology, KINE). PURPOSE: To assess …
Effects Of Percussive Massage Treatments On Symptoms Associated With Eccentric Exercise-Induced Muscle Damage, Trevor D. Roberts, Pablo B. Costa, Scott K. Lynn, Jared W. Coburn
Effects Of Percussive Massage Treatments On Symptoms Associated With Eccentric Exercise-Induced Muscle Damage, Trevor D. Roberts, Pablo B. Costa, Scott K. Lynn, Jared W. Coburn
International Journal of Exercise Science: Conference Proceedings
Percussive massage (PM) is an emerging recovery treatment, but the research on its effects post-eccentric exercise (post-EE) is limited. PURPOSE: To investigate the effects of PM on maximal isometric torque (MIT), range of motion (ROM), and an 11-point numerical rating scale (NRS) of soreness from 24-72 h post-EE. METHODS: Seventeen untrained, college-aged subjects (14 women and 3 men) performed 60 eccentric elbow flexion actions with their nondominant arms. Nine subjects received 1 minute of PM on their nondominant arm’s biceps brachii immediately, 24, 48, and 72 h post-EE, versus eight rested quietly (control [CON]). In order, the NRS, …
Undergraduate Kinesiology Student Involvement In The Department And Sense Of Belonging By Employment Status, Ruby Delgado, Maria Sanchez-Perez, Sarah Dunn
Undergraduate Kinesiology Student Involvement In The Department And Sense Of Belonging By Employment Status, Ruby Delgado, Maria Sanchez-Perez, Sarah Dunn
International Journal of Exercise Science: Conference Proceedings
Many undergraduate college students find the need to work either on or off campus in order to pay for their tuition and expenses. It is unknown whether or not employment impacts a students ability to be involved in the department or feel like they belong and not typically reported for Kinesiology programs. PURPOSE: To assess the impact employment had on college students in relation to their sense of belonging and involvement with their home department and to investigate belonging and involvement in Kinesiology students. METHODS: Undergraduate college/university students (18+ years) at a public institution in Southern California were …
Stress Response To Winter Warfare Training: Potential Impact Of Location, Lauren M. Visconti, Andrea C. Givens, Lorraine P. Turcotte, Laura Arrington, Karen R. Kelly
Stress Response To Winter Warfare Training: Potential Impact Of Location, Lauren M. Visconti, Andrea C. Givens, Lorraine P. Turcotte, Laura Arrington, Karen R. Kelly
International Journal of Exercise Science: Conference Proceedings
Winter Warfare Training (WWT) is a critical component of military training to prepare individuals to move effectively in harsh conditions. Moving through snow and heavy terrain increases overall stress to the entire human system. PURPOSE: The purpose of this effort was to quantify the stress response during WWT to determine the level of physiological adaptation to extreme environments. METHODS: Mountain and mobility operators (age: 31.5±1.4 years; height: 71.1±0.5 inches; weight: 192.5±6.6 lbs.; body fat percentage: 18.0±5.0%) were recruited for this effort. Participants engaged in baseline laboratory metrics at their home station located in Colorado (CO) prior to WWT for one …
Effects Of Biodensity Training On Bone Adaptations In Young Women: A Pilot Study, Carolina M. Garcia, Auguste Torres, Braulio Cazarez, Rosalinda Escobar-Prado, Maurice Cruz, Zhaojing Chen
Effects Of Biodensity Training On Bone Adaptations In Young Women: A Pilot Study, Carolina M. Garcia, Auguste Torres, Braulio Cazarez, Rosalinda Escobar-Prado, Maurice Cruz, Zhaojing Chen
International Journal of Exercise Science: Conference Proceedings
Osteopenia and osteoporosis are a major public health issue in the United States, and current research suggests that moderate to high intensity resistance training is the most effective type of exercise for maintaining bone mineral density (BMD). Sclerostin is a protein secreted by osteocytes which potently inhibits bone formation by binding to the LRP4 in Wnt/β-catenin signaling. BioDensity is a novel resistance training machine that consists of four exercises performed for five seconds each, which applies mechanical loading to the bone and provides a quicker alternative to traditional resistance training. PURPOSE: To examine the effects of 12 weeks of …
Ectopic Bone In The Lungs And Spleen Of Male Fisher-344 Rats, Amanda Salas Sanchez, Teresa Le, Danyah Nashawi, Hannah Mitchell, Tara Dawn Kortlever, Rhonda Prisby
Ectopic Bone In The Lungs And Spleen Of Male Fisher-344 Rats, Amanda Salas Sanchez, Teresa Le, Danyah Nashawi, Hannah Mitchell, Tara Dawn Kortlever, Rhonda Prisby
International Journal of Exercise Science: Conference Proceedings
Previous experimental data demonstrated ossified particles (OSP, i.e., bone-like particles) in the circulation of rodents as well as human subjects. Their ability to circulate could ultimately permit access to vital tissues, potentially leading to ectopic bone formation. Although the fate of OSP is yet unclear, their entry into soft tissues and organs may initiate pathological processes. PURPOSE: We sought to determine the presence of bone in the soft organs. METHODS: Young (6-mon; n=10) and old (24-mon; n=10) male Fisher-344 rats were anesthetized (3% isoflurane to oxygen balance) and euthanized by removal of the heart. Body mass (g) was …
Ectopic Bone In The Kidneys And Visceral Fat Of Male Fischer-344 Rats, Teresa N. Le, Amanda Salas Sanchez, Danyah Nashawi, Hannah Mitchell, Tara Kortlever, Rhonda Prisby
Ectopic Bone In The Kidneys And Visceral Fat Of Male Fischer-344 Rats, Teresa N. Le, Amanda Salas Sanchez, Danyah Nashawi, Hannah Mitchell, Tara Kortlever, Rhonda Prisby
International Journal of Exercise Science: Conference Proceedings
Ossified particles (OSP) are microscopic, bone-like fragments found in the circulatory system of rodents and humans. Although theorized to develop in the bone marrow, their origin and impact on physiological processes are unknown. Further, the fate of OSP has not been determined and may exit the circulatory system and enter organs and tissues. PURPOSE: We sought to detect the presence of ectopic bone in the kidneys and visceral fat of rodents. METHODS: Young (6-mon; n=10) and old (24-mon; n=10) male Fischer-344 rats were anesthetized with isoflurane (3% to oxygen balance) and euthanized by excising the heart. The right and …
Pityriasis Rosea In A Female Runner, Melissa D. Long
Pityriasis Rosea In A Female Runner, Melissa D. Long
International Journal of Exercise Science: Conference Proceedings
CASE HISTORY: The patient was a 40-year-old, physically active, mother and teacher. She had no previous history of autoimmune disease, Shingles, or other skin disorder. She reported having Herpes Zoster (Chicken Pox) at about six years old. In this case, she reported having a bug bite superior to the right iliac crest. After two days of itching the bite appeared normal and the pruritis stopped. After 10 days, the patient reported that the bite was not resolving but was not causing any symptoms. The athlete reported that the area had become scaly. PHYSICAL EXAM: Physical exam revealed a …
A Single 10-Minute Vape Exposure Alters Ventilation In Adult Rats, Mila Fisher, Jennifer A. Stokes
A Single 10-Minute Vape Exposure Alters Ventilation In Adult Rats, Mila Fisher, Jennifer A. Stokes
International Journal of Exercise Science: Conference Proceedings
E-cigarettes, also known as electronic nicotine delivery systems (ENDS), are an alternative to the traditional cigarette. ENDS function using a heating device (e.g. “vape pen”, such as JUUL) to heat liquids containing nicotine and other chemicals. Recent research in humans and animal models suggests that acute exposure (5 to 60 minutes) to e-cigarette vapor increases airway resistance and proinflammatory cytokine presence in lung tissue. These acute effects may lead to long term functional changes in the lung and tissue changes at the respiratory membrane. PURPOSE: The purpose of this study was to investigate the effects of an acute 10-minute …
Difference Between Wrist And Chest-Worn Heart Rate Monitors, Vania Gonzalez, John D. Smith
Difference Between Wrist And Chest-Worn Heart Rate Monitors, Vania Gonzalez, John D. Smith
International Journal of Exercise Science: Conference Proceedings
Wrist-worn heart rate measurement on fitness trackers, activity watches, and smartwatches are relatively new and accuracy verification of these monitors is needed. Polar chest strap monitors, which have been validated for accuracy (Gillinov et al., 2017; Pasadyn et al., 2019), were used as the criterion to establish the validity of the wrist-worn device. PURPOSE: The purpose of this study was to determine the difference between a Garmin wrist-worn heart rate monitor and a Polar chest-worn heart rate monitor. METHODS: The session included measurement of age, height, body weight, and four 5-minute exercise sessions, one each while walking on a treadmill, …
The Effects Of Resistance Deception On Upper Body Muscular Strength, Muscular Endurance, And Perceived Exertion, Ashley Mcmasters
The Effects Of Resistance Deception On Upper Body Muscular Strength, Muscular Endurance, And Perceived Exertion, Ashley Mcmasters
International Journal of Exercise Science: Conference Proceedings
Resistance deception during training is lightly researched and is seen as a modification that can potentially act on central control during exercise. Studies that have observed the effects of deception while training has yielded mixed results and the effects of deception on strength, muscular endurance, and perceived exertion are still unclear. PURPOSE: The purpose of this study was to determine the effects of resistance deception on upper-body maximal muscular strength, muscular endurance, and perceived exertion in a strength-trained population. METHODS: Eight males (n = 5) and females (n = 3) between the ages of 18 and 26 that had at …
No Differences Were Found Between Partial And Full Range Of Motion Bench Press Resistance Exercises On Markers Of Work, Blood Lactate, And Muscle Oxygen And Hemoglobin Concentrations: A Pilot Study, Katherine Colburn, Daniel Newmire
No Differences Were Found Between Partial And Full Range Of Motion Bench Press Resistance Exercises On Markers Of Work, Blood Lactate, And Muscle Oxygen And Hemoglobin Concentrations: A Pilot Study, Katherine Colburn, Daniel Newmire
International Journal of Exercise Science: Conference Proceedings
During resistance training (RT) exercises, full range of motion (fROM) is traditionally promoted by exercise training professionals. Based on recent publications, it is reported that partial range of motion (pROM) during RT may have similar muscle growth responses as fROM. There are limited investigations examining the acute effects of ROM during a RT bout on blood lactate (BLa), muscle oxygen saturation (SmO2), and total hemoglobin content (tHb) that may help drive mechanistic investigations. PURPOSE: This study aims to investigate the effects of different ROMs during flat (FB) and incline (IB) barbell bench press exercises on BLa, SmO …
Comparison Of Ultrastructural Alterations In Peripheral Artery Disease Skeletal Muscle, Dylan T. Wilburn, Emma Fletcher, Dimitrios Miserlis, Bernd Zechmann, Panagiotis Koutakis
Comparison Of Ultrastructural Alterations In Peripheral Artery Disease Skeletal Muscle, Dylan T. Wilburn, Emma Fletcher, Dimitrios Miserlis, Bernd Zechmann, Panagiotis Koutakis
International Journal of Exercise Science: Conference Proceedings
Peripheral artery disease (PAD) is characterized by obstructed hemodynamics and claudication reducing quality of life and muscle function. A myopathy has been shown to develop in PAD patients and characterization of changes in skeletal muscle needs further elucidation. PURPOSE: To assess myofibrillar ultrastructural changes between control and stage IV PAD patients. METHODS: Twenty-six participants (13 control:13 stage IV) were recruited to take part in this cross-sectional study. The mean(±SD) age, mass, height, and BMI were 53(±11) years, 81(±22) kg, 165(±15) cm, and 30(±1.5) kg/m2. Muscle samples were collected from the gastrocnemius and prepared for transmission electron microscopy. Relative …
The Effects Of Mindful Meditation On Body Image In Female Collegiate Athletes During The Luteal And Early Follicular Phase Of The Menstrual Cycle, Victoria Bowden
The Effects Of Mindful Meditation On Body Image In Female Collegiate Athletes During The Luteal And Early Follicular Phase Of The Menstrual Cycle, Victoria Bowden
International Journal of Exercise Science: Conference Proceedings
Body image has been studied in previous research but there is a gap in research with the consideration of body image changes during the phases of the menstrual cycle. PURPOSE: The purpose of this study was to examine the effects of a mindful meditation intervention on body image during the late luteal and early follicular phases of the menstrual cycle in collegiate female athletes. METHODS: This study included 8 female collegiate athletes (20.5 ± 1.8 years, 1.7 ± 0.1 m, 62.4 ± 8.9 kg, 26.4 ± 6.9%) participating in both the control and mindful meditation intervention with each taking 3 …
Selective Inhibition Of Ribosomal Biogenesis Over Cap-Dependent Translation By Rapamycin In L6 Myotubes, Selina Uranga, James D. Fluckey
Selective Inhibition Of Ribosomal Biogenesis Over Cap-Dependent Translation By Rapamycin In L6 Myotubes, Selina Uranga, James D. Fluckey
International Journal of Exercise Science: Conference Proceedings
The mechanistic target of rapamycin, or mTOR, lies at the center of skeletal muscle anabolic regulation. The mTOR kinase has at least two complexes that aide in carrying out responses to anabolic signals. Complex 1 (mTORC1) activation leads to cap-dependent translation and ribosomal biogenesis via phosphorylation of its two downstream targets 4EBP1 and P70S6K respectively. mTORC1 is inhibited by rapamycin while mTORC2 is not; however, cap-dependent translation via mTORC1 may still occur under rapamycin inhibition. PURPOSE: To identify timing and mechanistic pathway by which selective skeletal muscle anabolism continues in the presence of rapamycin inhibition. METHODS: Murine L6 …
The Impacts Of Wrist Wrap Type And Sex On Bench Press Muscular Strength And Power, Dillon R. Harris, Dakota R. Harris, Thomas D. Cardaci, Harry P. Cintineo, Leslee K. Funderburk, Steven B. Machek
The Impacts Of Wrist Wrap Type And Sex On Bench Press Muscular Strength And Power, Dillon R. Harris, Dakota R. Harris, Thomas D. Cardaci, Harry P. Cintineo, Leslee K. Funderburk, Steven B. Machek
International Journal of Exercise Science: Conference Proceedings
While wrist wraps have become increasingly prevalent in both competitive and recreational demographics, their posited ability to augment bench press performance by enhanced wrist stability still remains unclear. PURPOSE: To determine the effect of varying wrap styles on bench-specific muscular strength and associated power, as well as quantitative and subjective differences between sexes. METHODS: Eighteen resistance trained males and females (9M/9F; 24±4y; 176±33cm; 80±15kg) visited the laboratory on three separate occasions in randomized, crossover, and counterbalanced design to sport either a flexible wrist wrap (FW), stiff wrap (SW), or a no wrap control (NW) condition. All participants underwent a bench …