Sports Sciences Commons^™

Blood Flow Restriction Training After Patellar Instability (Brains Trial), Benjamin D. Brightwell, Austin V. Stone, Xiaojuan Li, Peter A. Hardy, Katherine L. Thompson, Brian W. Noehren, Cale A. Jacobs

Orthopaedic Surgery and Sports Medicine Faculty Publications

Background

Patellar instability is a common and understudied condition that disproportionally affects athletes and military personnel. The rate of post-traumatic osteoarthritis that develops following a patellar dislocation can be up to 50% of individuals 5–15 years after injury. Conservative treatment is the standard of care for patellar instability however, there are no evidence-informed rehabilitation guidelines in the scientific literature. The purpose of this study is to assess the effectiveness of blood-flow restriction training (BFRT) for patellar instability. Our hypotheses are that this strategy will improve patient-reported outcomes and accelerate restoration of symmetric strength and knee biomechanics necessary to safely return …

A Muscle Cell-Macrophage Axis Involving Matrix Metalloproteinase 14 Facilitates Extracellular Matrix Remodeling With Mechanical Loading, Bailey D. Peck, Kevin A. Murach, R. Grace Walton, Alexander J. Simmons, Douglas E. Long, Kate Kosmac, Cory M. Dungan, Philip A. Kern, Marcas M. Bamman, Charlotte A. Peterson

Center for Muscle Biology Faculty Publications

The extracellular matrix (ECM) in skeletal muscle plays an integral role in tissue development, structural support, and force transmission. For successful adaptation to mechanical loading, remodeling processes must occur. In a large cohort of older adults, transcriptomics revealed that genes involved in ECM remodeling, including matrix metalloproteinase 14 (MMP14), were the most upregulated following 14 weeks of progressive resistance exercise training (PRT). Using single-cell RNA-seq, we identified macrophages as a source of Mmp14 in muscle following a hypertrophic exercise stimulus in mice. In vitro contractile activity in myotubes revealed that the gene encoding cytokine leukemia inhibitory factor ( …

Neurophysiological And Psychological Characteristics Of Individuals With History Of Lateral Ankle Sprain, Katherine Bain

Theses and Dissertations--Rehabilitation Sciences

Lateral ankle sprain (LAS) is among the most common lower limb musculoskeletal injuries impacting both the general and sport populations. Even more problematic is that approximately 70% of individuals who sustain an LAS develop residual deficits. Of that subgroup, roughly 40% develop chronic ankle instability (CAI). Chronic ankle instability is a clinical diagnosis defined by the presence of ongoing impairments following the initial LAS which may include perceived instability, pain, mechanical instability, and episodes of giving way during physical activity. Not all who sustain multiple ankle sprains or experience residual deficits fit the clinical diagnosis criteria for CAI; yet may …

Effect Of Blood Flow Restriction Training On Functional And Self-Reported Outcomes In Female Runners With Patellofemoral Pain, Lauren Nicole Erickson

Theses and Dissertations--Rehabilitation Sciences

Background: Patellofemoral pain (PFP) is the leading cause of lower extremity injury in female runners, significantly limiting running ability and becoming chronic in nearly 50% of the cases. This condition, which presents as pain around (peripatellar) or behind (retropatellar) the patella, is associated with significant weakness of the quadriceps and gluteal musculature, as well as altered movements mechanics. The challenge for clinicians is designing an effective treatment program to reduce pain and improve function without causing symptoms to flare. Blood flow restriction training (BFRT) is a relatively new training method within rehabilitation that involves placing a pressurized cuff to the …

Development Of A Field Expedient Screening Tool For The Coach To Identify Musculoskeletal Risk Factors In Baseball Players, Kyle Andrew Matsel

Theses and Dissertations--Rehabilitation Sciences

Identification of musculoskeletal (MSK) injury risk factors in baseball players can be challenging particularly for youth and high school coaches. Many baseball coaches lack a sports medicine and/or strength and conditioning staff to assist with injury prevention initiatives. Given the extensive responsibilities in managing the team and preparing the players for athletic competition, little time remains to focus on injury prevention and arm care programs. Furthermore, assessment, diagnosis, and management of MSK impairments is outside the scope of practice and expertise of baseball coaches. However, educating and empowering the coach to efficiently screen their players for potentially injury producing MSK …

Effects Of Load Carriage On Shoulder Neuromuscular Functions And Recovery, Muataz R. Almaddah

Theses and Dissertations--Rehabilitation Sciences

Load carriage is a primary source for injury occurrence among military personnel and recreational hikers affecting all body areas. The shoulder ranks as the second or third most common site of injuries among military personnel. Many studies report that elevations in self-reported fatigue, soreness, and discomfort in the shoulders accompany the load carriage. Almost 50% of military personnel experienced a load carriage injury during the first episode of training, and 75% of those injured suffered a second injury during their career. The goal of this research project is to investigate the components associated with load carriage shoulder symptoms to determine …

Influences Of Functional And Psychological Factors On Biomechanics Following An Anterior Cruciate Ligament (Acl) Reconstruction, Chelsey Roe

Theses and Dissertations--Rehabilitation Sciences

Objective: The aims of this research were to identify gaps in the literature related to return to sport (RTS) test batteries following primary anterior cruciate ligament reconstruction (ACLR) (Aim 1) and define recovery in athletes from 4-9 months after ACLR across three domains: 1) psychological recovery and biomechanics (Aim 2), 2) rehabilitation quantity and biomechanics (Aim 3), and 3) functional performance and biomechanics (Aim 4). Ultimately, the results of this research would quantify recovery following ACLR in athletes with a desire to RTS and identify objective criteria throughout rehabilitation prior to RTS.

Participants: Twenty-two post-ACLR athletes 17 females, 8 males, …

Volleyball Overhead Swing Volume And Injury Frequency Over The Course Of A Season, Heather Wolfe, Katherine Poole, Alejandro G. Villasante Tezanos, Robert A. English, Timothy L. Uhl

Statistics Faculty Publications

Background: Overuse injuries are common in volleyball; however, few studies exist that quantify the workload of a volleyball athlete in a season. The relationship between workload and shoulder injury has not been extensively studied in women's collegiate volleyball athletes.

Hypothesis/Purpose: This study aims to quantify shoulder workloads by counting overhead swings during practice and matches. The purpose of the current study is to provide a complete depiction of typical overhead swings, serves, and hits, which occur in both practices and matches. The primary hypothesis was that significantly more swings will occur in practices compared to matches. The secondary hypothesis was …

The Relationship Between Pitching Volume And Arm Soreness In Collegiate Baseball Pitchers, Angel L. Lazu, Shawn D. Love, Timothy A. Butterfield, Robert A. English, Timothy L. Uhl

Physical Therapy Faculty Publications

Background: Excessive baseball pitch volume has been associated with increased risk of injury in adolescents. However, many collegiate athletes report non-time loss injuries over the course of the season. It is unknown how pitch volume throughout a collegiate baseball season affects arm soreness.

Purpose: The primary purpose of this study was to determine the relationship between pitch volume and self-reported arm soreness. A secondary purpose was to determine the relationship between change in pitch volume and change in arm soreness over the course of the season for collegiate baseball pitchers.

Study Design: Prospective Cohort.

Methods: Seven collegiate baseball …

Connecting The Pieces: How Low Back Pain Alters Lower Extremity Biomechanics And Shock Attenuation In Active Individuals, Alexa Johnson

Theses and Dissertations--Rehabilitation Sciences

Low back pain in collegiate athletes has been reported at a rate of 37% from a wide array of sports including soccer, volleyball, football, swimming, and baseball. Whereas, in a military population the prevalence of low back pain is 70% higher than the general population. Compensatory movement strategies are often used as an attempt to reduce pain. Though compensatory movement strategies may effectively reduce pain, they are often associated with altered lower extremity loading patterns. Those who suffer from chronic low back pain tend to walk and run slower and with less trunk and pelvis coordination and variability. Individuals with …

Reliability And Validity Of A Biomechanically Based Analysis Method For The Tennis Serve, Natalie L. Myers, W. Ben Kibler, Leah Lamborn, Belinda J. Smith, Tony English, Cale A. Jacobs, Timothy L. Uhl

Physical Therapy Faculty Publications

Background: An observational tennis serve analysis (OTSA) tool was developed using previously established body positions from three-dimensional kinematic motion analysis studies. These positions, defined as nodes, have been associated with efficient force production and minimal joint loading. However, the tool has yet to be examined scientifically.

Purpose: The primary purpose of this investigation was to determine the inter-observer reliability for each node between two health care professionals (HCPs) that developed the OTSA, and secondarily to investigate the validity of the OTSA.

Methods: Two separate studies were performed to meet these objectives. An inter-observer reliability study preceded the …

The Effect Of One-On-One Intervention In Athletes With Multiple Risk Factors For Injury, Kathryn Schwartzkopf-Phifer

Theses and Dissertations--Rehabilitation Sciences

Background: Lower extremity (LE) musculoskeletal injuries in soccer players are extremely common. These injuries can result in many days of lost time in competition, severely impacting players and their respective teams. Implementation of group injury prevention programs has gained popularity due to time and cost-effectiveness. Though participation in group injury prevention programs has been successful at reducing injuries, programs often target a single injury and all players do not benefit from participation. Players with a greater number of risk factors are most likely to sustain an injury, and unfortunately, less likely to benefit from a group injury prevention program. …

Alterations In Visual Processing And Its Impact On Upright Postural Stability In Athletes Following Sport-Related Concussion, Andrea E. Cripps

Theses and Dissertations--Rehabilitation Sciences

Athletes are at risk of sustaining a concussion in all sports and at all competitive levels which may lead to balance impairments. Balance results from the integration of visual, vestibular, and somatosensory information. The underlying pathophysiology for balance impairments is not well understood and visuo-motor processing impairments and how these impairments contribute to balance in concussed athletes has not been reported. Objectives: (1) to investigate the influence of visual perturbation on upright postural stability and balance in athletes who have recently suffered a sports-related concussion, (2) to establish the test-retest reliability of a simple visuo-motor processing task. Design: A longitudinal, …