Sports Sciences Commons^™

Training For “Worst-Case” Scenarios In Sidestepping: Unifying Strength And Conditioning And Perception–Action Approaches, Daniel Kadlec, Matt Miller-Dicks, Sophia Nimphius

Research outputs 2022 to 2026

Sidesteps can impose high demands on the knee joint and lead to non-contact anterior cruciate ligament (ACL) injuries. Understanding how different constraints shape an athlete’s movement strategy and the associated joint demands can help design training interventions to increase injury resilience. Motor capacities, such as muscular strength and power, act as boundaries for the safe execution of perceptual–motor skills and co-determine the emergence of unique movement strategies. Increasing single- and multi-joint strength enables a broader solution space for movement strategies and increases load tolerance. Manipulating task constraints during sidesteps can be used in the training process to systematically expose athletes …

Nutrient Supplementation For Pre- And Post Acl Operation & Rehabilitation In Female Basketball Players, Mackenzie Steele, Joshua Munoz

Department of Nutrition Student Projects

Understanding how nutrition and dietary protocols can help female athletes in the process of “returning to sport” after an anterior cruciate ligament (ACL) repair surgery should be discussed amongst interprofessional post-operational care teams. Amongst athletes, female counterparts experience ACL injuries at a higher incidence rate than males, this is due to a variety of biological factors while returning to sport at a lower rate. Due to this, it is important to analyze and evaluate the data available from sports journals on the effects diet and supplements may have on the musculoskeletal system. ACL grafts are often taken from a donating …

Return To Activity Following Acl Reconstruction With The Fertilized Acl: A Retrospective Study., Chad Lavender, Timothy Hewett, John Johnson, Richard Peluso, Tyag Patel, Shane Taylor

Marshall Journal of Medicine

Introduction

The objective of this retrospective study is to evaluate outcomes in patients who underwent the fertilized anterior cruciate ligament (ACL) reconstruction procedure. We aim to investigate the return to previous level of activity, safety, and re-rupture rates of the ACL reconstruction augmented with bone marrow concentrate, demineralized bone matrix, autograft bone, and a suture tape (the fertilized ACL).

Methods

A comprehensive review of medical records was conducted for patients treated with the fertilized ACL (FACL). Medical records of all the patients who underwent reconstruction surgery between July 2018 and January 2021 were evaluated. The inclusion criteria for the study …

Reaction Times Altered By Anterior Cruciate Ligament Tear, Bonny H. Lu, Sara A. Harper, David A.E. Bolton, Anne Z. Beethe

International Journal of Exercise Science: Conference Proceedings

The anterior cruciate ligament (ACL) tear is associated with declined performance upon return to sport, with high rates of reinjury. Despite ACL reconstruction, ACL tears induce neuroplasticity, increasing reliance on vision and preparation time in movement. This increased reliance on vision and time could lead to motor control strategy deficits under sport-specific tasks. PURPOSE: To determine if ACL injury results in slower muscle onsets in a reactive stepping task and if this is affected by preparation. METHODS: Reactive balance was assessed in ACL (N=6) and healthy control (CON; N=12) participants using a lean and release device to initiate …

Comparison Of Injuries To The Anterior Cruciate Ligament In Male Soccer And Football Athletes And The Effect Of Varying Rehabilitation On Recovery Time, Matthew Moraw

Undergraduate Honors Thesis Collection

Injuries are commonplace when a sport involves high levels of physical contact and quick movements. Athletes often strain or tear muscles and sprain ligaments when they are putting above normal levels of stress on the connection points through their explosive motions and high force collisions. Two sports where this is particularly common are soccer and football. Due to the high levels of running and cutting in both sports, lower body injuries, particularly to the knee are some of the most common injuries that occur. The purpose of this study was to take a retrospective look at ACL tears in college …

The Correlation Between Acl Injury & Concussion, Brandon Michael Phillips

Theses and Dissertations--Kinesiology and Health Promotion

Concussion (also known as mild traumatic brain injury) is a neurological injury that occurs after a blow to the head or neck area and can have affects to movement based on the severity of the injury. Mild traumatic brain injury has possible linkage to an increased risk of anterior cruciate ligament (ACL) injury. The purpose of this thesis was to assess the impact of prior concussion on lower extremity mechanics that are associated with risk of ACL injury. A total of 11 individuals with prior history of concussion and 11 healthy individuals without prior history of concussion (56.5 months since …

Acute Multiple Deep Vein Thrombosis, Tara Tralewski, Vered Arbel, Terry Nicola, Tal Amasay

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY: The patient was a 49-year-old male who presented to the clinic for further evaluation right calf swelling and pain. He reported that the pain began approximately three weeks before the visit while in physical therapy for ACL knee surgery rehab. The patient recalls performing a lateral stepping exercise when he experienced a sharp pain in his groin that radiated down his leg to his toes on the right side. The pain in his groin eventually subsided but continued experiencing aching pains and swelling in the right calf. He initially had difficulty walking on his right leg but …

Comparison Of Sport Performance Outcomes In Young Athletes Receiving Hamstring Autograft And Patellar Tendon Autograft For Anterior Cruciate Ligament (Acl) Reconstruction Surgery, Allison Kell

Capstone Showcase

Introduction: ACL rupture is an extremely common injury among athletes of various sports. There are multiple different grafts that can be used in ACL reconstruction surgery. Two forms of graft that are most often considered in the case of ACL reconstruction are the hamstring tendon (HT) autograft and patellar tendon (PT) autograft. Many orthopedic providers have conflicting views regarding which of the two is the ideal graft. There are varying findings comparing the HT and PT, with many parameters to consider when predicting overall outcome. Oftentimes athletes who experience an ACL rupture are young and desire to return to sport …

Sex Differences In Speed And Acceleration Metrics In Soccer A Case Of Ncaa, Division Iii Student-Athletes, Cas Costa, Tiffanie Alling, Mark Whitney, Grant Morgan, Andreas Stamatis

International Journal of Exercise Science: Conference Proceedings

According to American College of Sports Medicine (ACSM) reports, wearable technology is the number one fitness trend for 2020 in the US. Division III (DIII) schools are the biggest participant in the National Collegiate Athletic Association (NCAA). In terms of number of student-athletes, soccer is the second most popular sport in NCAA. Duration of high speed and number of accelerations/decelerations have been identified as correlates of injuries, such as anterior cruciate ligament (ACL) injury, especially in female athletes. PURPOSE: To examine whether there are sex difference in the relationship of speed and acceleration metrics in collegiate soccer. METHODS: …

Oral Contraceptives As Possible Acl Injury Prevention Method, Haley Schweizer

Capstone Showcase

ABSTRACT

Introduction: Anterior Cruciate Ligament (ACL) injuries are an upsetting setback for many athletes that require a long and costly recovery process. The injury rates are four times greater in women than men. Preventative measures that help to prevent ACL injuries are limited to stretching and strengthening. Therefore, this review aims to investigate if oral contraceptive [I] usage provides a possible new avenue for prevention of ACL injury [O] in young female athletes (ages 18-30) [P] compared to those that do not take oral contraceptives [C].

Methods: A literature review was performed though PubMed, Google Scholar, SCOPUS Database, and ClinicalKey …

Mild Traumatic Brain Injuries As A Possible Risk Factor For Anterior Cruciate Ligament Tears In Female High School And College Athletes, Brooke Weyand

Capstone Showcase

Introduction: Both mild traumatic brain injuries (concussions) and anterior cruciate ligament (ACL) tears are among two of the most common, and most career-ending sports medicine injuries. Concussions often result from a blow to the head that can cause headaches, difficulty concentrating, photophobia, and memory loss. Concussion recovery often involved brain rest from athletics, screen exposure, reading, lights, and if severe enough, academics. The ACL is a ligament that is detrimental in stabilization of the knee joint. It connects the femur to the tibia within the joint, and can tear suddenly if it undergoes a quick twisting motion. ACL tears often …

Education And Use Of The Lelli Test In The Clinical Setting, Nathalie De La Torre, Eduardo Escobar

International Journal of Exercise Science: Conference Proceedings

The knee ligament most susceptible to injury is the anterior cruciate.²˒⁵˒⁸ Detection of a ruptured ACL tear is pivotal in the course of injury care and management process.⁸ The gold reference standard for diagnosing an ACL tear has been arthroscopic evaluation.²˒⁵ However, a MRI may be used as an alternate because it is non-invasive, and it has a sensitivity and specificity of 98% and 94%.²˒⁵ Before the gold reference standard is used, a combination of physical examinations must be performed. The three physical examinations chosen by surgeons because of the exams’ highly researched validity are the Lachman test, Anterior Drawer …

Noncontact Anterior Cruciate Ligament Injuries In Collegiate Female Soccer Players: The Effects Of A Four-Week Prevention Program On Landing Kinematics, Tess K. Marcordes

ELAIA

Background Noncontact anterior cruciate ligament (ACL) injuries are highly prevalent in soccer as quick changes in direction, stop-start motions, as well as jumping and landing often paired with shooting or passing a ball, are occurring continuously throughout a practice or match. Exaggeration of these movements with extreme joint motions increases the likelihood of ACL injury. An ACL injury can be detrimental to an athlete’s career, as 25% of athletes with such injuries do not return to their pre-injury level of play (Padua, DiStefano, Beutler, de la Motte, DiStefano, and Marshall, 2015). Myer, Ford, McLean, and Hewitt (2006), Garcia (2011), and …

Determining The Efficacy Of Fifa 11+ In Reducing Acl Injury In Female Soccer Players, John Hallmark

Celebration of Learning

Objective-This study aims to identify the relationship between the Fifa 11+ program and the angle of valgus deformity at the knee. Background-200,000 ACL tears are reported each year. Previous studies have linked valgus motion of the knee to an increased rate of ACL injury and females exhibit a 4-6x increased risk for ACL injury. Fifa 11+ has shown promise in studies done on professional soccer teams yet remains untested in a younger population. Methods-This prospective cohort study of 300 consented female soccer players will use Noraxon as a tool for the measurement of valgus angle at the …

Noncontact Anterior Cruciate Ligament Injuries In Collegiate Female Soccer Players: The Effects Of A Four Week Prevention Program On Landing Kinematics, Tess Marcordes

Scholar Week 2016 - present

BACKGROUND: Noncontact anterior cruciate ligament (ACL) injuries are highly prevalent in soccer as quick changes in direction, stop-start motions, as well as jumping and landing often paired shooting or passing a ball are continuously occurring throughout a practice or match. Exaggeration of these movements paired with extreme joint motions increases the likelihood of ACL injury. An ACL injury can be detrimental to an athlete’s career, as 25% of athletes do not return to their previous level of play prior to injury. Research has shown that programs consisting of a combination of plyometric, balance, and strengthening exercises constitutes a greater prevention …

The Effectiveness Of Functional Movement Screening Testing In Prevention Of Anterior Cruciate Ligament Injuries In Women's Collegiate Soccer, Morgan P. Ferrara

Honors Undergraduate Theses

The Functional Movement Screen (FMS), invented in 1995, has been adopted among Division One sports programs across the country. Being a women’s soccer player at the University of Central Florida (UCF), this particular topic had been of interest for years. The FMS is a series of seven tests evaluated at the beginning and end of each season. The UCF team's preventative rehabilitation was based upon the measurements from the FMS testing. The team engaged in preventative rehabilitation three times a week. Each year of my membership, the team of 28 to 30 players had no less than two anterior cruciate …

Effects Of A Raised Surface On Lower Extremity Kinematics, Kinetics, And Muscle Activation During A Sidecut In Recreational Female Softball Players, Lauren Elizabeth Schroeder

Masters Theses

Noncontact anterior cruciate ligament (ACL) injury is a common sports-related injury. “High-risk” dynamic movements, such as a sidecut, have been associated with increasing the risk of noncontact ACL injury. Certain biomechanical abnormalities, specifically at the hip and knee, and neuromuscular abnormalities, such as unbalanced quadriceps-to-hamstrings activation ratios and certain activation patterns prior to initial contact and after initial contact, have also been associated with an increased likelihood of noncontact ACL injuries occurring. Approximately 78% of all NCAA Division I softball game-day injuries are classified as noncontact where there is no direct contact to a player. Internal derangement of the knee …

Acl Rupture In Collegiate Wrestler, Lindsay A. Palmer, Nicholas Perez

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

Objective: To educate others on unique Anterior Cruciate Ligament tears and percentage of usage of the ACL in normal daily function. Background: Patient is an eighteen year old male participating in wrestling and football at the time of the injury. Patient now only participates in wrestling. No previous knee or chronic injuries were reported prior to this injury. Patient was playing football during the time of injury. The patient stated that he planted his foot down and was tackled at the same time when the injury occurred. The patient felt his knee twist and buckle. Patient complained of clicking inside …

Predictive Value Of The Functional Movement Screen As It Relates To Anterior Cruciate Ligament Injury, Daniel A. Herring, Kyle D. Cherry, Hannah L. Stedge

The Research and Scholarship Symposium (2013-2019)

Introduction: Anterior cruciate ligament injuries occur over 200,000 times annually in the United States alone (Brophy, et al. 2009). This injury strains the healthcare system and affects the players, teams, parents, and the organization they are a part of. There have been, however, clinically researched risk factors that predispose athletes to ACL injury (Gignac, et al. 2015; Laible, et al. 2014). As a result, there is a clinical need for an effective screening tool to identify those athletes at risk for ACL injury. The Functional Movement Screen has been shown to be an effective screening tool for detecting athletes who …

Examination Of Lower Extremity Mechanics During Three Landing Tasks And Injury Prediction Ability Of Those Models As Compared To A Functional Test, Timothy G. Coffey

Theses and Dissertations

Anterior cruciate ligament (ACL) ruptures are one of the most common knee ligament injuries suffered by both male and female athletes. These injuries are severe in nature and also have long-term impacts on activities of daily living. Significant research has been conducted utilizing a drop landing task to attempt to better understand the mechanics behind the injury and to help identify at-risk athletes for targeted intervention. However, there have not been any published standards for the height of the drop landing activity, and previous researchers have also raised some concerns about the ability of a drop landing task to replicate …

Landing Technique Affects Knee Loading And Position During Athletic Tasks, Nelson Cortes, Steven Morrison, Bonnie L. Van Lunen, James A. Onate

Rehabilitation Sciences Faculty Publications

Anterior cruciate ligament (ACL) injuries have been reported to occur with the ankle in a dorsiflexed position at initial contact. Few studies have attempted to quantify the biomechanical parameters related with such landing patterns during athletic tasks.

Objectives- The purpose of this study was to evaluate the effects that two landing techniques have in lower extremity biomechanics while performing two tasks.

Design- Single-group repeated measures design.

Methods- Twenty female soccer athletes from a Division 1 institution performed two landing techniques (forefoot and rearfoot) during two unanticipated tasks (sidestep cutting and pivot). Repeated measures analyses of variance were conducted to assess …

Incidence And Prevention Of Injury Of The Anterior Cruciate Ligament In Females, Arielle E. Gillie

Senior Honors Theses

According to the American College of Sports Medicine, women are two to eight times more likely to sustain an anterior cruciate ligament injury than men at the same level of performance. This high incidence of women with an ACL injury is thought to be due to a number of gender differences. This study examines the research that has been conducted to determine the reason for the disproportionate incidence of anterior cruciate ligament in female population. The study encompasses anatomical structure of the knee joint, structural differences in the male and female knee, hormonal influences, biomechanical influences, neuromuscular influences, and strategies …