Rehabilitation and Therapy Commons^™

Sex Differences In The Effects Of Cortisol On Muscle Characteristics: A Meta-Analysis, Natalie Bitetti

CMC Senior Theses

Background: Cortisol plays a central role in both muscle breakdown and growth. These effects are highly dependent on dose and interactions with other hormones. It is known that men and women show considerable differences in their muscle structure and physiology, which are largely driven by hormonal differences. Cortisol release patterns may also vary between the sexes, with current research showing considerable disagreement. The interplay between cortisol and muscle, two highly variable and sexually dimorphic factors, may prove to have different effects in males versus females.

Objective: This meta-analysis integrates existing research on sex differences in cortisol-muscle physiology with existing research …

Physical And Psychosocial Factors Related To Firefighter Musculoskeletal Disorders, Jennifer Ellen Tinsley Kubala

Theses and Dissertations--Rehabilitation Sciences

Career firefighters must perform physically and psychologically challenging duties in unpredictable and dangerous conditions. Previous investigations have found that firefighters suffer nearly 4 times the recorded musculoskeletal disorders (MSD) and workplace injuries compared to private and public sector workers, and take approximately 1.5 days longer to return to normal work. Thus, the burden of firefighter MSD experiences has been a growing area of exploration. The few investigations that have concurrently examined physical and psychosocial consequences experienced by firefighters have found a positive relationship between increased occupational stress reports and MSD experiences. However, these investigations, as well as those that individually …

The Effects Of Static Versus Dynamic Stretching On Lower Extremity Power Output And Flexibility In Dancers, Meloney George

Williams Honors College, Honors Research Projects

Collegiate dancers require a large range of motion throughout all joints for performance success. Previous research has shown static (STA) stretching to be most effective at improving flexibility (Chaabene et al. 2019), due to this factor, warmups for dance are primarily based on STA stretching to allow dancers to reach their maximum flexibility. Previous research has also shown that STA stretching before activity can have negative effects on an athlete’s power output, and a large amount of power is essential for dance. PURPOSE: Determine the effect of STA and dynamic (DYN) stretching on lower extremity power and flexibility in collegiate …

The Relationship Between Sleep, Physical Activity, And Musculoskeletal Injury, In Us And Saudi College Students, Abdulaziz Hasan Alameer

Theses and Dissertations--Rehabilitation Sciences

According to the National Sleep Foundation, individuals should sleep 7-9 hours every night. Recently, insufficient or poor sleep has been linked to diabetes, cardiovascular illness, stroke, obesity, and Alzheimer's disease. Insufficient sleep for college students can negatively impact academic performance and mental health. In addition, especially for collegiate athletes, there is evidence that insufficient sleep is associated with an increased risk of musculoskeletal injury. However, it is uncertain if the link between sleep and injury varies between populations, types of individuals (athletes vs non-athletes), sports or types of exercise, or training volume. Despite the health risks of inadequate sleep, up …

Midlife Health Crisis Of Former Competitive Athletes: Dissecting Their Experiences Via Qualitative Study, Jacob J. Capin, Taylor Wolf, Jena Heck Street, Carolyn S. Smith, Shannon L. Lennon, William B. Farquhar, Sandra K. Hunter, Linda B. Piacentine

Physical Therapy Faculty Research and Publications

Sports participation confers many health benefits yet greatly increases injury risk. Long-term health outcomes in former athletes and transition to life after competitive sports are understudied. Ending a sport may pose physical and psychosocial challenges. The purpose was to determine the lived experiences of former competitive athletes and how their sports participation impacted their long-term health and well-being. Former college varsity athletes participated in semistructured interviews focusing on their experiences, including past and current health, the impact of injuries, activity, exercise, diet and transition to life after competitive sport. Thematic analysis was completed using a collaborative, iterative process. Thirty-one (16 …

Does The Size-Weight Illusion Exist During Deadlift?, Dakota Kerbow, Luke Mallory, Robin Dorociak, Peter Jang, Andrew Meszaros

Student-Faculty Research - College of Physical Therapy

Purpose:

to assess whether the SWI exists during deadlift (whole body loading), and identify the mechanical factors that explain or overcome the illusion

Fatigue Changes Biomechanical Variables In Drop Vertical Jump Performance In Competitive Basketball Players, Isabella Bruno, Caroline Linardos, Michala Rennels, Kristina Williams, Robin Dorociak, Jaydee Romick, Jason Brumitt

Student-Faculty Research - College of Physical Therapy

The drop vertical jump (DVJ) has been used as a tool to identify athletes at risk for injury. Initial studies have suggested an association between biomechanical variables and injury (1); however, subsequent research has demonstrated no relationship (2-4). Evaluating variables in fatigued athletes may help clinicians identify athletes at risk. Advances in motion capture technology now allow for assessment of variables after a fatigue protocol.

Prediction Of Recurrent Lateral Ankle Sprain And Ankle Pain Using Applied Care Strategies And Patient-Reported Outcomes, Ryan S. Mccann, Elisabeth Ohrnberger, Kyle B. Kosik, Phillip A. Gribble

Rehabilitation Sciences Faculty Publications

Context

Patients with lateral ankle sprains (LASs) often have deficient patient-reported outcomes (PROs) at return to activity (RTA), potentially increasing risk for recurrent LAS and ankle pain. Additionally, applied care strategies are known to correct impairments, but their ability to mitigate risk for long-term consequences remains unknown.

Objective

To determine if applied care strategies and PRO scores at RTA and 6 months after RTA predict recurrent LAS and ankle pain 12 months after an acute LAS. DESIGN: Prospective cohort study.

Setting

Online survey.

Patients or Other Participants

We enrolled 63 individuals within 1 week of sustaining an acute LAS.

Main …

Retention And Transfer Of Fractal Gait Training, Logan J. Frame, Nikita A. Kuznetsov, Louisa D. Raisbeck, Christopher K. Rhea

Rehabilitation Sciences Faculty Publications

Background/Purpose: Fractal gait patterns have been shown to be modifiable, but the extent to which they are retained and transferred to new contexts is relatively unknown. This study aimed to close those gaps by enrolling participants (N = 23) in a seven-day fractal gait training program. Methods: Building on related work, the fractal gait training occurred on a treadmill over a 10-min period. Before and after the treadmill training, each participant walked for 10 min overground without the fractal stimulus used during training. The daily post-test was used to examine immediate retention and transfer of the fractal gait patterns from …

A Comparison Of Concurrent Training And Moderate Intensity Continuous Training In Patients With Coronary Artery Disease, Amanda Alfaro-Chaverri, John Quindry, Charles Dumke, Brian Loyd

Graduate Student Theses, Dissertations, & Professional Papers

Moderate intensity continuous training (MICT) is the most studied method in cardiac rehabilitation (CR) for patients with coronary artery disease (CAD). Traditionally, resistance training has been utilized as a secondary role in CR. Recent interest in the topic suggests that MICT and resistance training should be applied collectively, an approach termed concurrent training (CT). The collective understanding of the potential of CT in CR patients is currently lacking.

Purpose: The aim of this professional paper is to analyze scientific evidence regarding the efficacy and safety of CT versus MICT. The analysis will focus on five primary measurements: exercise capacity, cardiovascular …

How Hormonal Contraceptives Influence Injury In Female Athletes: A Systematic Review, Ashley V. Malvita

Honors Undergraduate Theses

Research indicates that female athletes have a higher risk of musculoskeletal injuries. Hormone fluctuations throughout the different periods of the menstruation cycle impacts the risk of injuries for women. Contraceptive use, most used in the form of an oral contraceptive pill, directly effects hormones and menstrual cycle related symptoms, with evidence of ameliorating some symptoms. Oral contraceptive use is suggested to influence musculoskeletal injuries in female athletes. However, there is little research and data that explores the direct relationship between oral contraceptive use and the injury rates of female athletes. Within this systematic review, five articles investigating this relationship fulfilled …

Deconstruction Of Body Representation Of The Back In Healthy Back Pain-Free Individuals And People With Chronic Low Back Pain, Simon Pratt

Theses

Changes in various body representations have been increasingly investigated and subsequently posited to be potentially important factors in the development and maintenance of chronic low back pain. Three main domains of body representation are considered here: body model, body schema (comprising superficial and postural schema), and body image. Most studies informing our contemporary understanding of these body representations have been undertaken in areas such as the hand and forearm, with a comparative dearth of studies performed on the low back. Consequently, this thesis consists of a comprehensive investigation of body representation initially in healthy back pain-free individuals and then in …

Effect Of Covid-19 On Performance And Recovery Of Division I Women’S Basketball Players: A Case Study, Julie K. Nolan, Christopher Taber, Samah Senbel, Mehul S. Raval, N.S. Artan, Tolga Kaya

Athletic Training Faculty Publications

This report aimed to examine the effects of COVID-19 on athletic performance and recovery in women’s basketball players. Twelve participants were included in this case report, with four serving as the test group and eight serving as the control group. All participants wore a Polar GPS unit and a Whoop Strap. The Polar unit was worn during games and practices and used to collect metrics of physical workload. The Whoop strap was worn during daily activities, including periods of sleep, to collect metrics of sleep and recovery. Data were analyzed via descriptive statistics (mean difference ± standard deviations), and T-tests …

The Effect Of Interval Time On Time To Exhaustion During High Intensity Interval Training Running In Recreational Male Runners, Abraham Castrejon

Cal Poly Humboldt theses and projects

High Intensity interval Training (HIIT) in running prescription can be applied in a variety of different ways, but HIIT prescription lacks specificity and efficiency in determining what duration of interval is optimal for improved aerobic performance. The purpose of this study was to test different HIIT protocols with a 1:1 ratio active: recovery intervals of 2:2 minute (Protocol 1), 4:4 minute (Protocol 2) and a continuous run trial (CRT). Seven recreational male runners (Age= 23.1 ± 3.4 yr, Height= 1.80 ± 0.1, Weight= 75.8 ± 9.6) performed a maximal oxygen consumption test (60.5 ± 4.9 ml/kg/min) with a graded exercise …

Middle-Range Scores From The Patient Determined Disease Steps Scale Reflect Varying Levels Of Walking Dysfunction In Multiple Sclerosis, Robert W. Motl, Whitney Neal, Deborah Backus, Jeffrey Hebert, Kevin K. Mccully, Francois Bethoux, Prudence Plummer, Alexander V. Ng, John Lowman, Hollie Schmidt, Robert Mcburney, Gary R. Cutter

Exercise Science Faculty Research and Publications

Background

Multiple sclerosis (MS) is a leading cause of neurological disability among young and middle-aged adults worldwide, and disability is measured using a variety of approaches, including patient reported outcome measures (PROMs) such as the Patient Determined Disease Steps (PDDS) scale. There is limited evidence for the validity of inferences from the middle-range of scores on the PDDS (i.e., 3 “gait disability” – 6 “bilateral support”), but that range of scores seemingly represents moderate disability characterized by varying levels of walking dysfunction.

Purpose

The current study examined whether the middle-range of scores from the PDDS reflect varying levels of walking …

How Hormonal Contraceptives Influence Injury In Female Athletes: A Systematic Review, Ashley V. Malvita

Honors Undergraduate Theses

Research indicates that female athletes have a higher risk of musculoskeletal injuries. Hormone fluctuations throughout the different periods of the menstruation cycle impacts the risk of injuries for women. Contraceptive use, most used in the form of an oral contraceptive pill, directly effects hormones and menstrual cycle related symptoms, with evidence of ameliorating some symptoms. Oral contraceptive use is suggested to influence musculoskeletal injuries in female athletes. However, there is little research and data that explores the direct relationship between oral contraceptive use and the injury rates of female athletes. Within this systematic review, five articles investigating this relationship fulfilled …

Anatomy Of The Ankle And Ankle Injuries In Athletes, Isabelle G. West

Honors Capstones

The purpose of this project was to learn about the anatomy of the ankle joint, explore common ankle injuries in athletes, and research how they are treated overall and in a physical therapy setting. To do so, a dissection of the ankle joint was completed with Mrs. Kara Coffman-Rea in the cadaver lab as well as an exploration of plastinated models. Additionally, a literature review of current research on the ankle was completed. Though many structures of the ankle joint were identified through dissection, the focus of the literature review is on the structures of the lateral ankle and the …

Accessing Outdoor Recreation For Persons With Physical Disabilities (Pwpd), Molly Lindquist, Mary Smith, Emily Brent

Fall 2023 Virtual OTD Capstone Symposium

To contribute to a website that would be a one-stop location for PWPD who wish to engage in sports and outdoor recreational activities.

Using Noninvasive Calibrated Cuff Plethysmography To Observe The Effects Of Cold-Water Immersion On Arterial Compliance, Rita M. Grigorian

Biomedical Engineering: Graduate Reports and Projects

As the prevalence of cardiovascular diseases continues to exponentially grow in populations across the globe, the necessity of determining underlying factors, effective methods of diagnoses, and universally available preventive measures also grows. Early detection of endothelial dysfunction, a proven precursor of cardiovascular diseases, can be extremely impactful in encouraging preventative measures and early intervention before medical conditions become chronic. In recent years, ice plunging, a form of cryotherapy involving full body immersion in cold water, has gained popularity within circles of fitness and health practitioners, gaining the interest of people of all backgrounds. Certain parallels observed between the human physiological …

Sex Differences In Fatigability And Recovery Following A 5 Km Running Time Trial In Recreationally Active Adults, Maria Solleiro Pons, Sandra K. Hunter, Paul Ansdell

Exercise Science Faculty Research and Publications

Females demonstrate greater fatigue resistance compared to males in tasks ranging from single-limb contractions to whole-body exercise, including running. Many of the studies investigating sex differences in fatigability following running, however, occur after long duration, low-intensity tasks and it is unknown whether there is a sex difference in fatigability following high-intensity running. This study compared fatigability and recovery following a 5 km running time trial in young males and females. Sixteen recreationally active participants (8 males, 8 females, age: 23 ± 4 years) completed a familiarisation and experimental trial. Knee-extensor maximal voluntary contractions (MVCs) were performed before and up to …

Covid‑19‑Related Risk, Resilience, And Mental Health Among Mexican American Mothers Across The First Year Of The Pandemic, Amy L. Non, Elizabeth S. Clausing, Sandraluz Lara‑Cinisomo, Kimberly L. D’Anna Hernandez

Center for Brain, Biology, and Behavior: Faculty Publications

Background Latina mothers have been especially affected by the pandemic and historically exhibit high rates of depression and anxiety. However, few longitudinal studies have assessed the effect of the pandemic on this vulnerable population. We hypothesized that COVID-19-related stressors would associate with psychological distress among Latina mothers across the first year of the pandemic.

Methods We investigated COVID-19-related impact, stigma, and fears across two critical time points and changes in these measures in relation to changes in maternal anxiety and depression among mothers of Mexican descent living in Southern California (n=152). Surveys were administered within 5–16 weeks of …

Reduced Grey Matter Volume In Adolescents With Conduct Disorder: A Region‑Of‑Interest Analysis Using Multivariate Generalized Linear Modeling, Ru Zhang, Robert James R. Blair, Karina S. Blair, Matthew Dobbertin, Jaimie Elowsky, Johannah Bashford‑Largo, Ahria J. Dominguez, Melissa Hatch, Sahil Bajaj

Center for Brain, Biology, and Behavior: Faculty Publications

Background

Conduct disorder (CD) involves a group of behavioral and emotional problems that usually begins during childhood or adolescence. Structural brain alterations have been observed in CD, including the amygdala, insula, ventrolateral and medial prefrontal cortex, anterior cingulate cortex, and fusiform gyrus. The current study developed a multivariate generalized linear model (GLM) to differentiate adolescents with CD from typically developing (TD) adolescents in terms of grey matter volume (GMV).

Methods

The whole‐brain structural MRI data were collected from 96 adolescents with CD (mean age = 16.188 ± 1.259 years; mean IQ = 104.292 ± 8.107 ; 63 males) and 90 …

Integrating Glenohumeral Range Of Motion With Dynamic Postural Control For Early Detection Of Elbow Injury Risk In Collegiate Baseball Pitchers: A Preliminary Prospective Case Series, Brent A. Harper, Luke J. Bailey, Mikayla N. Jones, Joseph Bradley

Physical Therapy Faculty Articles and Research

Introduction: Medial elbow ulnar collateral ligament (UCL) injuries are common in baseball with increased surgical incidence in pitchers. There is no consensus on which modifiable injury risk metrics or performance screening tools to use to identify at risk collegiate baseball pitchers. Current literature on UCL injury risk has focused on local passive glenohumeral rotational motion with limited forays into more global movement patterns. The aim of this study was to assess possible relationships involving UCL injuries and modifiable local and global motor control performance risk factors. Material and Methods: An observational single cohort case series involving 15 collegiate …

Specialized Late Cingulo-Opercular Network Activation Elucidates The Mechanisms Underlying Decisions About Ambiguity, Jordan E. Pierce, Nathan M. Petro, Elizabeth Clancy, Caterina Gratton, Steven E. Petersen, Maital Neta

Center for Brain, Biology, and Behavior: Faculty Publications

Cortical task control networks, including the cingulo-opercular (CO) network play a key role in decision-making across a variety of functional domains. In particular, the CO network functions in a performance reporting capacity that supports successful task performance, especially in response to errors and ambiguity. In two studies testing the contribution of the CO network to ambiguity processing, we presented a valence bias task in which masked clearly and ambiguously valenced emotional expressions were slowly revealed over several seconds. This slow reveal task design provides a window into the decision-making mechanisms as they unfold over the course of a trial. In …

The Biological Basis Of Sex Differences In Athletic Performance: Consensus Statement For The American College Of Sports Medicine, Sandra K. Hunter, Siddhartha S. Angadi, Aditi Bhargava, Joanna Harper, Angelica Lindén Hirschberg, Benjamin D. Levine, Kerrie L. Moreau, Natalie J. Nokoff, Nina S. Stachenfeld, Stéphane Bermon

Exercise Science Faculty Research and Publications

Biological sex is a primary determinant of athletic performance because of fundamental sex differences in anatomy and physiology dictated by sex chromosomes and sex hormones. Adult men are typically stronger, more powerful, and faster than women of similar age and training status. Thus, for athletic events and sports relying on endurance, muscle strength, speed, and power, males typically outperform females by 10%–30% depending on the requirements of the event. These sex differences in performance emerge with the onset of puberty and coincide with the increase in endogenous sex steroid hormones, in particular testosterone in males, which increases 30-fold by adulthood, …

Force Plate Methodologies Applied To Injury Profiling And Rehabilitation In Sport: A Scoping Review Protocol, Francisco J. Robles-Palazón, Paul Comfort, Nicholas J. Ripley, Lee Herrington, Christopher Bramah, John J. Mcmahon

Research outputs 2022 to 2026

Musculoskeletal injuries are a common health problem among sporting populations. Such injuries come with a high financial burden to the involved organisations and can have a detrimental impact on the career attainment of injured individuals. Force plates are now a common tool available to sport and exercise science and medicine professionals to enable them to profile injury risk predisposition and modulate the rehabilitation process within sporting environments. This is because contemporary force plate technology is portable and affordable and often comes with software that enables the automatic and immediate feedback of test variables to key stakeholders. However, to our knowledge, …

Successful Closed Reduction And Tooth-To-Tooth Wire-Fixation Of A Mandibular Singular Parasymphysis Fracture In A Male Collegiate Lacrosse Player, Steven Ross Murray, Coryann L. Leadford, Nathaniel Snyder, Robert W. Pettitt, Jeremy R. Hawkins

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

A 19-year-old male collegiate lacrosse player suffered an acute singular parasymphysis fracture of the mandible when he was struck in the facemask of his helmet by a lacrosse ball during practice. The fracture was confirmed via panoramic radiography and treated with a closed reduction under local anesthetic by looping a 26-gauge wire around the two right incisors and the right cuspid. This approach to managing the fracture was taken instead of an open reduction and plate application to be less invasive with the hope of a faster recovery and fewer complications. The fracture healed and aligned properly, and after six …

Reliability And Construct Validity Of The Single-Leg Landing Error Scoring System (Sl-Less) In Physically Active Females, Jennifer E. Earl-Boehm, Madison Mach, Erin Lally, Maegan O'Connor, Hayley Ericksen

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

PURPOSE Single-leg landings are common in sport and often result in injury, however a rubric to evaluate biomechanics during single-leg jump landing (SLL) does not exist. The Single-Leg Landing Error Scoring System (SL-LESS) is a rubric developed to evaluate movement during SLL. The purpose of this study was to 1) determine inter- and intra-rater reliability of the SL-LESS, 2) and determine the content and construct validity of the SL-LESS when evaluating SLL

METHOD 28 healthy females completed SLL on two days while 2D and 3D data were recorded. 3D angles were trunk flexion/lateral-flexion, pelvic tilt/contralateral drop, hip flexion/adduction, and knee …

Leadership And Management Curricula Trends In Athletic Training Education, Stephanie Wise, Matthew R. Kutz

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: Leadership and management skills both are needed by athletic trainers. However, most professional education emphasizes management-related behaviors. The purpose of this study was to differentiate between leadership and management behaviors taught in athletic training programs and explore the pedagogical strategies used in teaching those behaviors. Method: A cross-sectional exploratory design was used to survey Athletic Training Program Directors (PDs). The Leadership and Management Education Assessment Instrument (LMEAI) was developed for this investigation. The LMEAI collected standard demographic characteristics of respondents and used a 5-point Likert scale (1 = extremely important to 5 = not at all important) to assess …

Quality Of Cardiopulmonary Resuscitation Performed Over Hockey Shoulder Pads: A Simulation Study, Jennifer Longo, Katie J. Lyman, Thomas A. Hanson, Adam G. Estabrooks

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Purpose: Athletic trainers (ATs) must be prepared to manage cardiac arrest events in all athletes, including those participating in equipment-intensive sports. The goal of this study was to determine if first responders, specifically ATs, were able to perform high-quality cardiopulmonary resuscitation (CPR) over hockey shoulder pads. Methods: A sample of 50 ATs completed a one-minute, compression-only CPR proficiency test on a medium-fidelity manikin (Resusci Anne QCPR). Once deemed proficient, each participant completed CPR according to 2020 AHA guidelines on the manikin fitted with hockey shoulder pads for 8 minutes and 59 seconds. The primary measures of interest were the percentage …