Influence Of Social Identity And Industry Role On Implicit Biases In Fitness Professional,
2024
California State University, Long Beach
Influence Of Social Identity And Industry Role On Implicit Biases In Fitness Professional, Shayna J. Guerra, Katie Mcpherrin, Kellie Amanda Walters, Leilani Madrigal, Alison Ede, Amber Johnson
International Journal of Exercise Science: Conference Proceedings
Implicit biases are unconscious, internally held beliefs shaped by cultural norms, societal structures, and personal experiences and are often related to societal constructs such as race, gender, age, body shape, and ability. Although evidence has demonstrated that fitness professionals possess both explicit and implicit weight biases, biases based on age, gender, skin color, and ability level have not been studied. PURPOSE: The aim of this study is to explore the influence of social identity (e.g., age, skin-tone, weight, disability) and industry role on implicit biases in fitness professionals. METHODS: Participants (n=296) were randomly assigned two implicit association tests …
Pilot Study Of Neuromuscular Fatigue After Doubles Pickleball Tournament,
2024
Cal State Monterey Bay
Pilot Study Of Neuromuscular Fatigue After Doubles Pickleball Tournament, Matthew Ritchey, Margaret Falknor, George Beckham, Eric Martin
International Journal of Exercise Science: Conference Proceedings
The number of people playing pickleball has grown exponentially for several years in a row, and likewise, the absolute number of injuries due to pickleball have increased. Examining fatigue effects of playing may be a first step to determining injury prevention and game or tournament management strategies. However, in our previous work, we could not detect fatigue after playing multiple recreational games of doubles pickleball. PURPOSE: The purpose of this pilot study was to examine fatigue effects from playing a doubles pickleball tournament. METHODS: Five young men (ages 22-45) tested their force production, as measured by performing a …
Sex Differences In Cardiac Decompensation Under Moderate Hypovolemic Stress During Exercise,
2024
San Jose State University
Sex Differences In Cardiac Decompensation Under Moderate Hypovolemic Stress During Exercise, Yusuf I. Rizk, Daisy Hernandez Valadez, Jacob B. Sievers, Youanaa A. Gendy, Areum K. Jensen
International Journal of Exercise Science: Conference Proceedings
Due to higher metabolic demands to the contracting muscles there are significant increases in cardiac output (CO) and peripheral vascular adjustments, thus resulting in an increased arterial blood pressure (BP) during exercise. In general women have higher heart rate (HR), lower stroke volume (SV) and CO compared to men even though they change in a similar fashion during exercise. In response to central hypovolemia, triggered by lower body negative pressure (LBNP), women appeared to have lower tolerance compared to men. However, how women exhibit cardiac alterations to sustained LBNP and exercise differently is unclear. PURPOSE: To investigate sex differences in …
Does Lower Body Negative Pressure Have A Differential Effect On Blood Pressure And Blood Flow During Exercise In Women?,
2024
San Jose State University
Does Lower Body Negative Pressure Have A Differential Effect On Blood Pressure And Blood Flow During Exercise In Women?, Jacob B. Sievers, Youanaa A. Gendy, Yusuf I. Rizk, Daisy Hernandez Valadez, Areum K. Jensen
International Journal of Exercise Science: Conference Proceedings
In response to central hypovolemia, triggered by lower body negative pressure (LBNP), women appeared to have lower tolerance compared to men. In addition, women exhibit blunted pressor responses to exercise compared to men, while cardiac output is increased in a similar fashion. Nonetheless, redistribution of blood flow from central to contracting muscles is required to meet higher metabolic demands during exercise in both men and women. Thus, we thought to investigate the differential effect of LBNP during exercise in men and women. PURPOSE: To determine the role of LBNP on redistributing blood flow from central to contracting muscles during moderate …
Case Study: Can Quadriceps Muscle Growth Be Achieved In Aclr Patient With Neuromuscular Inhibition?,
2024
Brigham Young University
Case Study: Can Quadriceps Muscle Growth Be Achieved In Aclr Patient With Neuromuscular Inhibition?, Melody F. Anderson, Lee J Hinkle, Steven P. Allen, Aaron W. Johnson
International Journal of Exercise Science: Conference Proceedings
Despite extensive research of ACL reconstruction surgery (ACLR) and rehabilitation, mobility and functional issues often persist, leading to complications beyond the initial injury. This case study presents exercises employed to overcome negative consequences following ACLR. Participant (23yo, F, 163cm, 52kg) underwent ACLR in 2019 after a complete left ACL tear. After 7 months of PT following surgery, the participant was cleared to return to sport and continued consistent activity until 4 years post ACLR. At this time, the participant presented with knee pain, edema exacerbated by activity, 20% loss of range of motion (ROM), and extensive atrophy of the quadriceps …
Reduced Exertion High Intensity Interval Training (Rehit) On The Rowing Ergometer Elicits Lower Blood Lactate Accumulation And Higher Enjoyment And Affective Valence Versus Cycle Ergometry,
2024
California State University-- San Marcos
Reduced Exertion High Intensity Interval Training (Rehit) On The Rowing Ergometer Elicits Lower Blood Lactate Accumulation And Higher Enjoyment And Affective Valence Versus Cycle Ergometry, Todd Anthony Astorino Ph.D, Rasmus Dahl Clausen
International Journal of Exercise Science: Conference Proceedings
Reduced exertion high intensity interval training (REHIT) is an extremely time-efficient version of sprint interval training requiring two to three 20 s “all-out” sprints within a 10 min exercise session. Findings from laboratories in the UK (Metcalfe et al. 2012) and Canada (Gillen et al. 2016) show significant increases in VO2max, glycemic control, and body composition in inactive adults completing 6 - 12 wk of cycling based REHIT. A prior study (Astorino et al. 2020) in 85 adults having diverse VO2max values shows positive affective valence despite substantial blood lactate (BLa) accumulation. Whether REHIT can be …
Differences In Muscle Activation In Individuals With Bilateral And Unilateral Chronic Ankle Instability Ankle Instability,
2024
Brigham Young University
Differences In Muscle Activation In Individuals With Bilateral And Unilateral Chronic Ankle Instability Ankle Instability, Tanner Lee, Hyunwook Lee, Seunguk Han, Minsub Oh, Jon Tyson Hopkins
International Journal of Exercise Science: Conference Proceedings
Individuals with chronic ankle instability (CAI) have altered muscle activation. However, little is known about the differences in muscle activation of the lower extremity in individuals with bilateral and unilateral CAI. PURPOSE: To investigate differences in muscle activations during single-leg stance in individuals with bilateral and unilateral CAI. METHODS: Sixty participants were divided into 3 groups: 20 individuals with bilateral CAI (bilateral), 20 individuals with unilateral CAI (unilateral), and 20 healthy controls (control). Participants performed 3 trials of single-leg stance while muscle activations were recorded for 10 seconds. During the stance, participants stood with hands crossed on their …
Differences In Postural Control In Individuals With Bilateral And Unilateral Chronic Ankle Instability,
2024
Brigham Young University
Differences In Postural Control In Individuals With Bilateral And Unilateral Chronic Ankle Instability, Ethan Wood, Hyunwook Lee, Seunguk Han, Minsub Oh, Jon Tyson Hopkins
International Journal of Exercise Science: Conference Proceedings
Individuals with chronic ankle instability (CAI) have deficits in postural control and muscle activation. However, little is known about the differences in postural control in individuals with bilateral and unilateral CAI. PURPOSE: To compare postural control difference in individuals with bilateral and unilateral CAI. METHODS: Sixty participants were divided into three groups: 20 individuals with bilateral CAI (bilateral), 20 individuals with unilateral CAI (unilateral), and 20 healthy controls (control). Participants performed 3 trials of single-leg stance tasks for 10 seconds simultaneously. During the single-leg stances, participants were instructed to stand as still as possible on a force plate …
Effects Of Ankle Swelling On Dynamic Postural Control In Individuals With Chronic Ankle Instability,
2024
Brigham Young University
Effects Of Ankle Swelling On Dynamic Postural Control In Individuals With Chronic Ankle Instability, Isaiah K. Githuka, Hyunwook Lee, Seunguk Han, Minsub Oh, Jon Tyson Hopkins
International Journal of Exercise Science: Conference Proceedings
Chronic ankle instability (CAI) individuals have ankle swelling as a residual symptom. Joint swelling following musculoskeletal injuries inhibits full neural activation of muscles, known as arthrogenic muscle inhibition. However, little is known about the effects of ankle swelling on dynamic postural control in CAI individuals. PURPOSE: To investigate the effects of ankle swelling on dynamic postural control in CAI individuals. METHODS: A total of 45 participants were recruited from a university population: 15 CAI individuals with swelling (swelling), 15 CAI individuals without swelling (non-swelling), and 15 healthy controls (control). All participants were measured ankle swelling using a figure …
Effects Of Ankle Swelling On Static Postural Control And Patient-Reported Outcomes In Individuals With Chronic Ankle Instability,
2024
Brigham Young University
Effects Of Ankle Swelling On Static Postural Control And Patient-Reported Outcomes In Individuals With Chronic Ankle Instability, Ashton Earl, Hyunwook Lee, Seunguk Han, Minsub Oh, Jon Tyson Hopkins
International Journal of Exercise Science: Conference Proceedings
Chronic ankle instability (CAI) individuals have ankle swelling as a residual symptom. Joint swelling frequently occurs and inhibits full neural activation of muscles, known as arthrogenic muscle inhibition. However, little is known about the effects of ankle swelling on static postural control and patient-reported outcomes about ankle function and instability in CAI individuals. PURPOSE: To investigate the effects of ankle swelling on static postural control in individuals with CAI. METHODS: A total of 45 participants were recruited from a university population: 15 CAI individuals with swelling (swelling), 15 CAI individuals without swelling (non-swelling), and 15 healthy controls (control). …
Virtual Reality-Based Assessment On Static Postural Control Among Individuals With Chronic Ankle Instability, Copers, And Controls.,
2024
Brigham Young University
Virtual Reality-Based Assessment On Static Postural Control Among Individuals With Chronic Ankle Instability, Copers, And Controls., Minsub Oh, Hyunwook Lee, Seunguk Han, Jon Tyson Hopkins
International Journal of Exercise Science: Conference Proceedings
Individuals with chronic ankle instability (CAI) have deficits in postural control. Previous studies assessing postural control have been limited by minimal environmental perturbation. Little is known about adding dynamic environments using virtual reality (VR) during static postural control in individuals with CAI. PURPOSE: To identify the effects of VR-based assessment on static postural control among individuals with CAI, copers, and healthy controls. METHODS: A total of 60 participants, including 20 individuals with CAI, 20 copers, and 20 healthy controls, performed 3 trials of a single-leg stance for 10 seconds with eyes open (EO), closed (EC), and VR. During the …
The Effect Of Gripping Handles On Knee Flexors And Extensors Force Production During The Isokinetic Strength Test,
2024
Sonoma State University
The Effect Of Gripping Handles On Knee Flexors And Extensors Force Production During The Isokinetic Strength Test, Christopher Hernandez, Mikayla Rudis, Lukas Krumpl, Nickolai Martonick, Youngmin Chun
International Journal of Exercise Science: Conference Proceedings
Understanding how gripping handles influence force production of knee extensors and flexors during different types of muscle contractions is crucial to obtain consistent isokinetic strength testing results. While it has been investigated the effect of gripping handles in the isometric and concentric contractions of the knee joint at various velocities, there is a lack of evidence of how gripping handles affectknee extensors and flexors in eccentric contraction. PURPOSE: This research was conducted to investigate the effect of gripping handles on the force production of the knee extensors and flexors during concentric, eccentric, and isometric contractions at various velocities. METHODS …
Identifying Predictors Of Fat Oxidation In Response To Exercise Prescribed According To Relative And Metabolic Intensities,
2024
California State University San Marcos
Identifying Predictors Of Fat Oxidation In Response To Exercise Prescribed According To Relative And Metabolic Intensities, Athrva Deshpande, Todd Astorino Ph.D
International Journal of Exercise Science: Conference Proceedings
Capacity for fat oxidation (FOx) is related to endurance performance and metabolic health. Chrzanowksi-Smith et al. (2021) revealed that maximal O2 consumption (VO2max), resting FOx, and physical activity level significantly predict maximal fat oxidation. PURPOSE: To identify predictors of the metabolic response to endurance exercise. METHODS: Active, non-obese men and women (N = 36, age and VO2max = 24 ± 4 yr and 2.8 ± 0.8 L/min) underwent 3 sessions of cycling separated by 3 – 7 days. All bouts were performed at the same time of day within participants. Initially, body fat and fat-free …
Comparing Body Composition Measures In Us Army Soldiers,
2024
San Francisco State University
Comparing Body Composition Measures In Us Army Soldiers, Kishani Kirubaharan-Smith, James R. Bagley, Kent A. Lorenz, Maria J. Veri
International Journal of Exercise Science: Conference Proceedings
The United States (US) Army currently uses circumference measurements (with body mass index, BMI) to estimate body fat (BF) composition in soldiers. While this current system is easy to administer, it has been shown to have poor validity compared to other modern body composition assessment techniques, such as air displacement plethysmography (BodPod). Specifically, circumference/BMI measures do not account for different body types, especially among female soldiers. PURPOSE: This study aimed to compare 1) body composition measures in US Army Soldiers (BF% via circumferences vs BodPod) and 2) differences in BF% between males and females. We hypothesized there would be significant …
Is There A Limit To Muscle Swelling After An Acute Resistance Training Session With Multiple Sets?,
2024
California State University, Northridge
Is There A Limit To Muscle Swelling After An Acute Resistance Training Session With Multiple Sets?, Rex Ruswick, Paulo H. Marchetti
International Journal of Exercise Science: Conference Proceedings
The number of sets per session and muscle group is an important RT variable responsible for the acute influence of cell swelling and chronic gains in muscle mass and strength. PURPOSE: The primary purpose of this study was to evaluate the acute effects of multiple sets on muscle thickness after an RT session in recreationally trained subjects. METHODS: Twenty-one resistance-trained subjects were recruited to this study (16 males and 5 females; age 24 ± 2.5 years, total body mass 75.1 ± 11.4 kg, height 171.7 ± 8.8 cm). During the first session, a ten repetitions maximum (10RM) test was applied …
Mobile-Health In Cardiac Rehabilitation: A Scoping Review Of Randomized Controlled Trials In Patients With Coronary Artery Disease,
2024
Arizona College of Osteopathic Medicine; Midwestern University; Glendale, AZ
Mobile-Health In Cardiac Rehabilitation: A Scoping Review Of Randomized Controlled Trials In Patients With Coronary Artery Disease, Theodore I. Nania, Rigdon C. Waite, Robert Scales
International Journal of Exercise Science: Conference Proceedings
Participation rates in cardiac rehabilitation (CR) remain low within the United States, which challenges practitioners to consider alternative models of healthcare delivery. A mobile-Health (m-Health) communication platform has the potential to augment traditional modes of CR delivery. PURPOSE: This investigation conducted a scoping review of randomized controlled trials (RCTs) that evaluated the effectiveness of m-Health delivered CR interventions in patients with coronary artery disease (CAD). METHODS: PubMed and Embase were searched using a custom search string, including keywords such as “coronary artery disease”, “cardiac rehabilitation”, “mobile application” and “digital health”. The author, title and abstract of all identified …
Relationship Among Bmi, Body Surface Area, Fluid Intake, And Sweat Rate On Elite Marching Arts Performers: A Pilot Study,
2024
California State University, San Bernardino
Relationship Among Bmi, Body Surface Area, Fluid Intake, And Sweat Rate On Elite Marching Arts Performers: A Pilot Study, Haydin C. Pazdur, Angela Haven A. Barandino, Miracle M. Busby, Daniela E. Ferreras, Theodore M. Locey, Michael M. Rodriguez, Christopher R. Hill, April Karlinsky, Jason Ng
International Journal of Exercise Science: Conference Proceedings
Elite groups of marching arts performers train at various intensities for long durations. They travel the country through a variety of climates, making hydration an important consideration. PURPOSE: The purpose of our pilot study was to evaluate the relationships between body mass index (BMI), body surface area (BSA), fluid intake, and sweat rate in elite marching arts performers. METHODS: We sampled 6 male and 1 female elite marching arts performers (mean ± SD; age: 20 ± 1 y, height: 177.0 ± 6.0 cm, body mass: 72.3 ± 9.1 kg). BMI was calculated by collecting height on a stadiometer and nude …
Anti-Cachexia Effect Of Polymorphonuclear Myeloid-Derived Suppressor Cell Depletion Therapy Is Not Present In Tumor-Bearing Mice Lacking T And B Cells,
2024
University of New Mexico
Anti-Cachexia Effect Of Polymorphonuclear Myeloid-Derived Suppressor Cell Depletion Therapy Is Not Present In Tumor-Bearing Mice Lacking T And B Cells, Hailey K. Gorman, Jonathan Specht, Michael Deyhle
International Journal of Exercise Science: Conference Proceedings
Polymorphonuclear (PMN) Myeloid-derived suppressor cells (MDSCs), are associated with poor cancer prognosis, partly due to their immunosuppressive effects on anti-cancer immunity. Cancer cachexia, characterized by debilitating skeletal muscle wasting, further reduces patient survival. Previously, antibody-mediated (anti-Ly6G) depletion of PMN-MDSCs attenuated skeletal muscle loss in mouse model of cancer cachexia. The mechanism by which PMN-MDSCs contribute to cachexia is unclear. Given the role that PMN-MDSCs play in supporting cancer disease progression depends on inhibiting anti-cancer adaptive immunity, we tested if the beneficial effects of PMN-MDSCs depletion on cachexia depend on the presence of adaptive immune cells. PURPOSE: We hypothesize that the …
The Effect Of Beetroot Juice Supplementation Dose On Neuromuscular Performance During Resistance Exercise,
2024
Pepperdine University
The Effect Of Beetroot Juice Supplementation Dose On Neuromuscular Performance During Resistance Exercise, Raymond T. Gerardo, Isabella G. Lincoln, Keonabelle P. Paniagua, Justin M. Foster, Lauren E. Wideen, Nathan J. Ornelas, Isaac Tchaprazian, Jeffrey Li, Michael Egiazarian, Adam Pennell, Rachel Tan
International Journal of Exercise Science: Conference Proceedings
Nitrate-rich beetroot juice may have more pronounced ergogenic effects on exercise that requires high-power and high-velocity muscle contraction; however, the efficacy of, and the optimal dosing for nitrate to enhance resistance exercise performance is unknown. PURPOSE: To assess whether nitrate elicits dose-dependent ergogenic effects during a battery of resistance exercises in resistance-trained men. METHODS: Eighteen resistance-trained men were assigned in a randomized, double-blind, crossover design to consume 280 ml nitrate-depleted beetroot juice (PL; negligible nitrate), 70 ml nitrate-rich beetroot juice and 210 ml nitrate-depleted beetroot juice (BR-LOW; ~6.5 mmol nitrate), 140 ml nitrate-rich beetroot juice and 140ml nitrate-depleted …
No Sex Differences In Metabolic Responses To Submaximal Exercise,
2024
California State University, San Marcos
No Sex Differences In Metabolic Responses To Submaximal Exercise, Alexander J. Macdonald, Alexander M. Anderson, Hanna Lauritzen, Ryan Pinter, Madison Mower, Todd Astorino Ph.D Facsm
International Journal of Exercise Science: Conference Proceedings
Tarnopolsky et al. (1990) showed significantly higher fat oxidation (FOx) in women versus men during endurance exercise, likely due to their higher concentrations of estrogen and type I muscle fibers. Prior studies support this stance (Venables et al. 2000), yet Wallis et al. (2006) showed no effect of sex on the metabolic response to exercise. PURPOSE: To compare substrate metabolism between men and women during submaximal exercise prescribed using metabolic (percent ventilatory threshold, %VT) and relative (percent maximal heart rate, %HRmax) intensities. METHODS: Healthy, non-obese men (n = 23) and women (n = 13) (age, % fat, and VO2 …
