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Articles 285541 - 285570 of 5164339

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Aerobic Fitness Outperforms Body Composition In Predicting Acft Scores Among Rotc Cadets And Active Military Personnel, Megan Bratetic, Jake Laufenberg, Kaitlyn Wabakken, Anthony Acevedo, Spencer Posey Sgt, Zachary Zeigler Nov 2024

Aerobic Fitness Outperforms Body Composition In Predicting Acft Scores Among Rotc Cadets And Active Military Personnel, Megan Bratetic, Jake Laufenberg, Kaitlyn Wabakken, Anthony Acevedo, Spencer Posey Sgt, Zachary Zeigler

International Journal of Exercise Science: Conference Proceedings

The use of body composition to determine readiness for military engagement has been contentious. Body composition is just one of many variables that may impact a soldier's readiness to serve. Aerobic capacity also predicts ACFT scores. PURPOSE: The purpose of this study is to determine if high aerobic fitness is a better predictor of ACFT scores in ROTC cadets and active military than body composition. METHODS: ROTC and active military cadets completed the 6-event ACFT (3-repetition maximum trap-bar deadlift, standing power toss, hand-release pushups, sprint-drag-carry shuttle run, plank, and 2-mile run. The cadets were invited into the laboratory …

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Ribosomal Protein S6 Phosphorylation Is Elevated In Nr4a3 Knockout Muscle, Benjamin Y. Sung, Abigail E. Summers, Andrew B. Gold, Liana Leininger, Jeffery S. Tessem, David M. Thomson Nov 2024

Ribosomal Protein S6 Phosphorylation Is Elevated In Nr4a3 Knockout Muscle, Benjamin Y. Sung, Abigail E. Summers, Andrew B. Gold, Liana Leininger, Jeffery S. Tessem, David M. Thomson

International Journal of Exercise Science: Conference Proceedings

Exercise training produces many muscle and body adaptations that improve health and function. Many of these adaptations are driven by altered gene expression. Nuclear Receptor Subfamily 4 Group A Member 3 (NR4A3; AKA NOR-1) is an orphan nuclear receptor and transcription factor whose expression is among the most upregulated genes after exercise, suggesting that it plays a critical role in the adaptation to training. Recently, a knockdown study in cultured skeletal muscle cells showed that the silencing of NR4A3 led to impaired signaling through the mechanistic target of rapamycin (mTOR), a key molecular driver of muscle mass maintenance. …

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The Effect Of Percussive Massage On Skeletal Muscle Atrophy During Limb Immobilization, Austin D. Cox, Robert Hyldahl, David Kofoed, James Bartling Nov 2024

The Effect Of Percussive Massage On Skeletal Muscle Atrophy During Limb Immobilization, Austin D. Cox, Robert Hyldahl, David Kofoed, James Bartling

International Journal of Exercise Science: Conference Proceedings

Muscle disuse and subsequent muscle loss are common consequences of injury. Various forms of skeletal muscle mechanical stimulation have been found to be helpful in preserving muscle mass and function during disuse. Recently, percussive massage devices have become popular devices for the application of mechanical stimulation. PURPOSE: This study investigated the potential benefits of percussive massage to mitigate muscle loss during a period of limb immobilization. METHODS: Seventeen healthy young adults (ages 18-35) underwent a 10-day period of immoblization of the right leg. Participants were randomly assigned to either a percussive massage group (n=9), receiving twice-daily 20-minute sessions on …

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Speed Has No Correlation To Muscle Volume Of Hip Flexors And Tibialis Anterior Muscles In Division L Football Athletes, Isaiah B. Guymon, Malorie Wilwand, Steven P. Allen, B. Brett Mortensen, Aaron W. Johnson Nov 2024

Speed Has No Correlation To Muscle Volume Of Hip Flexors And Tibialis Anterior Muscles In Division L Football Athletes, Isaiah B. Guymon, Malorie Wilwand, Steven P. Allen, B. Brett Mortensen, Aaron W. Johnson

International Journal of Exercise Science: Conference Proceedings

In American football (AF) a desirable trait is sprint speed that leads to success such as increased touchdowns, yards gained, and number of sacks. Researchers suggest training programs can improve an athletes’ sprint speed. Considering the swing to stance phases, the hip flexors (HF) and tibialis anterior (TA) may impact an athletes’ speed. The HF initiates the swing phase, while the TA muscle dorsiflexes the foot allowing the toes to clear the ground. PURPOSE: To determine if there is a correlation between collegiate football athlete's speed and the muscle volume (MV) of HF and TA muscles. METHODS: This study …

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Females Who Have Undergone Acl Reconstruction Exhibit Altered Patellofemoral Joint Alignment And Reduced Contact: Implications For Early Onset Osteoarthritis, Thomas Demirjian, Olivia Tu, Gillian Northrup, Christopher Powers Nov 2024

Females Who Have Undergone Acl Reconstruction Exhibit Altered Patellofemoral Joint Alignment And Reduced Contact: Implications For Early Onset Osteoarthritis, Thomas Demirjian, Olivia Tu, Gillian Northrup, Christopher Powers

International Journal of Exercise Science: Conference Proceedings

Reconstruction is the gold standard treatment for those who have experienced a tear of the anterior cruciate ligament. Despite advancements in surgical technique and rehabilitation, a negative consequence of anterior ligament reconstruction (ACLr) is early onset osteoarthritis of the tibiofemoral joint and patellofemoral joint (PFJ). There is evidence that altered patella alignment may be contributory to early onset patellofemoral joint osteoarthritis. A negative consequence of patella malalignment is that contact between the patella and trochlea could be reduced, thereby exposing the joint to elevated stress (force per unit area). PURPOSE: The purpose of the current study was two-fold: 1) …

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Three Years Of Football Play Maintains Nordbord Eccentric Hamstring Strength In Division I Athletes, Josh Vandenakker, Malorie Wilwand, B. Brett Mortensen, A. Wayne Johnson Nov 2024

Three Years Of Football Play Maintains Nordbord Eccentric Hamstring Strength In Division I Athletes, Josh Vandenakker, Malorie Wilwand, B. Brett Mortensen, A. Wayne Johnson

International Journal of Exercise Science: Conference Proceedings

In American football, the development of strength, power, speed, and conditioning is crucial throughout a season and college career to enhance athletes’ performance and prevent injury. Eccentric knee flexor strength is important for optimal athletic performance and injury risk reduction; therefore, assessment of eccentric hamstring strength (EHS) is critical. PURPOSE: To evaluate the EHS of a Division I football team and its change or continuity across multiple years. METHODS: This was a secondary analysis of HAMIR, 95 Division I football players (Age: 20.94 ± 2.11yrs; Ht: 1.88 ± 0.06m; Wt: 102.15 ± 17.94kg) had their EHS measured using the NordBord. …

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Acute Impacts Of A Novel Proprietary Supplement Blend On Aerobically-Focused Outcomes In Trained Crossfit Athletes: A Preliminary Analysis, Ashley Holland, Evan Hedrick, Jason Michael Cholewa, Steven Machek Nov 2024

Acute Impacts Of A Novel Proprietary Supplement Blend On Aerobically-Focused Outcomes In Trained Crossfit Athletes: A Preliminary Analysis, Ashley Holland, Evan Hedrick, Jason Michael Cholewa, Steven Machek

International Journal of Exercise Science: Conference Proceedings

CrossFit is a high-intensity sport that requires high cardiovascular fitness but aerobically-focused supplements are sparsely investigated within this demographic PURPOSE: to examine the efficacy of a novel ergogenic supplement blend on various cardiovascular metrics in CrossFit athletes. METHODS: 11 trained CrossFit athletes (30±6y; 3M/8F) were recruited for this acute, placebo-controlled study, whereby participants visited the laboratory on a single day to assess baseline resting heart rate (RHR), blood pressure (BP), and fingertip lactate (LAC) immediately prior to being randomly assigned to ingest either 4ml of a proprietary supplement blend (SUP; containing Beetroot, Ashwagandha, Arjuna, Rhodiola, and Cayenne) …

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Determining Model Fit For Eccentric Hamstrings Strength: A Bayesian Approach, Lee J Hinkle, James D. Mead, Carson Bates, Aaron W. Johnson Nov 2024

Determining Model Fit For Eccentric Hamstrings Strength: A Bayesian Approach, Lee J Hinkle, James D. Mead, Carson Bates, Aaron W. Johnson

International Journal of Exercise Science: Conference Proceedings

The Bayesian paradigm holds that previous knowledge or expertise (“prior”) and data-driven measurements (“likelihoods”) can produce an outcome (“posterior”) which can, in turn, be used as the prior in a new iteration of analysis and learning. In a wider project, we are undertaking to measure hamstrings strength, physical activity level, and ultrasound (US) and MRI characteristics of more than 200 participants ages 18+. PURPOSE: Here we aim to develop a model that will predict eccentric hamstrings strength as measured by Nordbord based on variables available in both surveys (IPAQ) and US for use as a starting point for our …

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Measuring Fatigue After Singles Pickleball Tournament Play, Margaret J. Falknor, Steven Kim, James Annesi, George Beckham, Eric Martin Nov 2024

Measuring Fatigue After Singles Pickleball Tournament Play, Margaret J. Falknor, Steven Kim, James Annesi, George Beckham, Eric Martin

International Journal of Exercise Science: Conference Proceedings

Previously, we measured fatigue from one doubles pickleball match, multiple recreational doubles pickleball matches, and a nine-game doubles pickleball tournament. We found no evidence of neuromuscular fatigue in any of these scenarios. Therefore, doubles pickleball play may not be fatiguing enough to decrease jump performance. Singles pickleball matches may be more fatiguing than doubles play, because players must cover the court and return the ball without a partner. PURPOSE: Our goal was to determine if singles pickleball play would induce neuromuscular fatigue. METHODS: We included healthy adult pickleball players that had no lower body injuries within the past …

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Downhill Dilemma: Analyzing Joint Force On Variable Speed And Gradient, Ulises Hernandez, Ezrie Pace, Kaeley Loader, Nathan Ramirez, Megan Nielsen, Michael Bohne Nov 2024

Downhill Dilemma: Analyzing Joint Force On Variable Speed And Gradient, Ulises Hernandez, Ezrie Pace, Kaeley Loader, Nathan Ramirez, Megan Nielsen, Michael Bohne

International Journal of Exercise Science: Conference Proceedings

Movement on declined slopes poses unique mechanical stresses when compared to level surfaces. Both downhill (DH) running and walking have seen large amounts of load force absorption on the knee (French 2018; Abe et.al., 2011) with some forces possibly being distributed to the hip and ankle joints. Though research is limited about lower extremity joint kinematics across all three joints. PURPOSE: To better understand the joint forces placed on the hip, knee, and ankle with variable speed and decline gradient METHODS: Nine participants (5 male and 4 female; Age = 24.09 ± 2.81 yrs; Weight = 75.12 ± 13.67 kg; …

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Influence Of Region Of Interest Size On Vastus Lateralis Shear Wave Velocity In Individuals With Anterior Cruciate Ligament Reconstruction, Jonathan L. Cardon, Brian W. Noehren, Mckenzie White Nov 2024

Influence Of Region Of Interest Size On Vastus Lateralis Shear Wave Velocity In Individuals With Anterior Cruciate Ligament Reconstruction, Jonathan L. Cardon, Brian W. Noehren, Mckenzie White

International Journal of Exercise Science: Conference Proceedings

PURPOSE: Shear wave elastography (SWE) is an emerging tool for estimating passive muscle stiffness via shear wave velocity (SWV). However, the lack of standardized collection and processing methods limits its clinical utility. One key factor in SWV analyses is the region of interest (ROI), which varies in size across the literature. Individuals post-anterior cruciate ligament reconstruction (ACLR) show changes in muscle quality, making it plausible that ROI size could influence SWE measurements in this population. METHODS: Twenty individuals post-ACLR participated (11M/9F, age = 19 ± 2 years, time since surgery = 5 ± 5 months, body mass index = …

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Sprint Speed Decreased Between Two Successive Seasons In Division L Football Athletes, Colton Glissmeyer, Malorie Wilwand, Bartley B. Mortensen, Aaron W. Johnson Nov 2024

Sprint Speed Decreased Between Two Successive Seasons In Division L Football Athletes, Colton Glissmeyer, Malorie Wilwand, Bartley B. Mortensen, Aaron W. Johnson

International Journal of Exercise Science: Conference Proceedings

Achieving longitudinal improvement among Division I collegiate football players is a key goal. Research indicates that improvements are typically noted in successive years of involvement in a program. Understanding how athletes sprint speed changes across time in a program may inform how coaches, trainers and athletes design and implement effective training and conditioning strategies. PURPOSE: To investigate the longitudinal progression of sprint speeds in collegiate football players across two seasons. METHODS: As a secondary analysis from the HAMIR study, this study utilized timing gate technology to measure sprint speed, with sensors placed at the 0, 45, and 60-yard …

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Pain Education And Preparation Across Health Care Professions: A Scoping Review, Rodiel Kirby Baloy Ii Nov 2024

Pain Education And Preparation Across Health Care Professions: A Scoping Review, Rodiel Kirby Baloy Ii

International Journal of Exercise Science: Conference Proceedings

There is an ongoing evolution in the understanding of pain biology and its underlying mechanisms. Healthcare professional education and preparation must adapt to continue to provide effective management of individuals experiencing pain. PURPOSE: A review of current studies in pain education and preparation across healthcare professions was performed. This scoping review will be part of a larger study assessing the state of pain preparation in the field of physical therapy. METHODS: A scoping review of articles discussing pain education and preparation of healthcare professions, including dentistry (2), medicine (8), nursing (7), occupational safety and health (1), occupational and …

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The Effects Of Visual And Audio Secondary Cognitive Tasks On Landing Biomechanics, Amber Lyle, Hillary Nguyen, Dominic Espinoza, Kevin Tran, Gerwyn Hughes Nov 2024

The Effects Of Visual And Audio Secondary Cognitive Tasks On Landing Biomechanics, Amber Lyle, Hillary Nguyen, Dominic Espinoza, Kevin Tran, Gerwyn Hughes

International Journal of Exercise Science: Conference Proceedings

Athletes attend to various sport-related stimuli when competing in their sports. These stimuli can be either visual or auditory in nature and can arise from game strategy, time of game, movement of objects, opponents and teammates. Many lower limb injuries, especially anterior cruciate ligament (ACL) injuries, occur when completing a landing task and risk of injury can be heightened by divided attention. PURPOSE: This study aimed to investigate the effect of secondary cognitive tasks on landing biomechanics. METHODS: Seventeen recreational athletes performed single-leg drop landing on their dominant leg in three different conditions; 1) auditory basic arithmetic, 2) …

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Baseline Characteristics Of Participants Enrolled In The Golf Recreational Exercise For Enhanced Prostate Cancer Survivorship Study, Guanrong Cai, George Salem Nov 2024

Baseline Characteristics Of Participants Enrolled In The Golf Recreational Exercise For Enhanced Prostate Cancer Survivorship Study, Guanrong Cai, George Salem

International Journal of Exercise Science: Conference Proceedings

Prostate cancer survivors undergoing hormone therapy experience declines in physical function and quality of life. Exercise has been shown to be beneficial. Comparing baseline key health metrics to normative data can provide insight into the health status of prostate cancer survivors enrolled in a recreational exercise study. PURPOSE: The purpose is to descriptively compare participants’ baseline quality of life and physical function metrics with normative values. METHODS Five prostate cancer survivors (age: 76 yrs, SD=5.1) participated in the study. Baseline assessments included FACT-P (Functional Assessment of Cancer Therapy-Prostate) scores, 8ft Time-up-and-go (TUG) test times, grip strength, and gait speed. …

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Use Of Caffeine In 19,660 U.S. Adults: The Role Of Overweight And Obesity, Frank Beltran, Larry A. Tucker Nov 2024

Use Of Caffeine In 19,660 U.S. Adults: The Role Of Overweight And Obesity, Frank Beltran, Larry A. Tucker

International Journal of Exercise Science: Conference Proceedings

Caffeine is one of the most consumed drugs in the United States. PURPOSE: The present cross-sectional investigation was conducted to determine the relationships between BMI and waist circumference, and caffeine intake. The specific objective was to determine whether those with higher BMIs or larger waists consume more caffeine than other adults. METHODS: A sample of 19,960 randomly selected women and men representing the U.S. adult population was studied. Data was collected as part of the National Health and Nutrition Examination Survey (NHANES) from 2009 through 2018. A number of covariates were controlled statistically to minimize their influence on …

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Relationships Between Energy Availability, Dietary Restraint, And Body Image Concerns Among Olympic Weightlifters, Hannah Parducho, Michelle Barrack Phd, Rd, Cssd, Fascm, Joshua Cotter Phd, Facsm, Cscs, Nsca-Cpt, Eim, Virginia Gray Phd, Rd Nov 2024

Relationships Between Energy Availability, Dietary Restraint, And Body Image Concerns Among Olympic Weightlifters, Hannah Parducho, Michelle Barrack Phd, Rd, Cssd, Fascm, Joshua Cotter Phd, Facsm, Cscs, Nsca-Cpt, Eim, Virginia Gray Phd, Rd

International Journal of Exercise Science: Conference Proceedings

Athletes with low energy availability (LEA) may face reduced health and performance outcomes. Few studies have examined the energy availability (EA) of Olympic weightlifters and its relationships with nutrient adequacy, disordered eating, and body image. PURPOSE: To evaluate EA among weightlifters and to examine the relationship between LEA with dietary restraint and/or body image concerns. METHODS: Twenty-two female and 9 male adult competitive weightlifters (age 30.7 ± 9.0 years; weight 75.5 ± 16.6 kg; height 1.6 ± 0.1 m) completed an online survey. The Nutrition Screening Survey (NSS) assessed nutrient intake and EA. Athletes were classified as having …

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The Effects Of Resisted Sprinting, Motor Imagery, Or A Dynamic Warm-Up Alone On Sprinting Performance In Recreationally Active Adults, Kimberly Rogers, Suzanne L. Young, Marcus M. Lawrence Nov 2024

The Effects Of Resisted Sprinting, Motor Imagery, Or A Dynamic Warm-Up Alone On Sprinting Performance In Recreationally Active Adults, Kimberly Rogers, Suzanne L. Young, Marcus M. Lawrence

International Journal of Exercise Science: Conference Proceedings

Limited information exists on directly comparing active (e.g., involving physical movement/muscle contractions) or passive (e.g., no physical movement/muscle contractions) warm-ups to enhance sprint performance. PURPOSE: To determine the effects of an active dynamic warm-up with a resisted sprinting potentiating stimulus (DyWU+RS), a dynamic warm-up with motor imagery (DyWU+MI), or a dynamic warm-up alone (DyWU) on max velocity sprinting performance in recreational athletes. METHODS: 16 recreational adult athletes (n=8 female, n=8 male, aged 18-34 years old) randomly completed three warm-up conditions in the same session. Participants performed a standardized dynamic warm-up alone (DyWU), a DyWU followed by a resisted sprinting (10% …

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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 Nov 2024

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 …

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Pilot Study Of Neuromuscular Fatigue After Doubles Pickleball Tournament, Matthew Ritchey, Margaret Falknor, George Beckham, Eric Martin Nov 2024

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 …

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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 Nov 2024

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 …

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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 Nov 2024

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 …

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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 Nov 2024

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 …

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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 Nov 2024

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 …

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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 Nov 2024

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 …

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Differences In Postural Control In Individuals With Bilateral And Unilateral Chronic Ankle Instability, Ethan Wood, Hyunwook Lee, Seunguk Han, Minsub Oh, Jon Tyson Hopkins Nov 2024

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 …

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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 Nov 2024

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 …

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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 Nov 2024

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). …

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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 Nov 2024

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 …

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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 Nov 2024

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 …

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