Medicine and Health Sciences Commons^™

An Examination Of Kinanthropometric And Physical Injury Risk Factors In Elite Australian Football, Callum J. Mccaskie

Theses: Doctorates and Masters

Kinanthropometric assessment is an integral part of understanding an athlete’s physical profile and readiness for competition. This typically includes a variety of different assessments which serve to quantify body shape, proportion, and composition in a bid to understand human physiology. Common assessments include stature, body mass, limb ratios, body circumferences, body mass index, skinfold testing, body composition testing, and musculoskeletal morphological evaluations. Specifically, kinanthropometric evaluations have involved the characterisation of athletes according to sport, sex, competition level and playing position. While this has provided researchers and practitioners with greater insight into athletic phenotypes, more purposeful kinanthropometric assessments which focus on …

Long-Term Disability Following A Hamstring Injury, Savannah Mclain

Electronic Theses and Dissertations

PURPOSE: Injuries to the hamstring complex are one of the most commonly seen lower extremity injuries in athletic populations. It is currently unknown how psychological or sociological factors affect an athlete after the recovery process has ended and if these factors play a role in re-injury rates relating to the hamstring. It is also unknown if athlete confidence level changes while in a fatigued state after an athlete returns to play from a hamstring injury. METHODS: Twenty-six physically active adults with and without a previous hamstring injury were recruited for this study. Participants completed a Qualtrics survey that …

Psychological Predictors Of Injury In Collegiate Cheerleaders, Alexander Marchand

Electronic Thesis and Dissertation Repository

According to the revised stress-injury model (Williams & Andersen, 1998), greater life stress predicts greater vulnerability to athletic injury, with this relationship being strongest among athletes exhibiting competitive anxiety, less social support, and non-adaptive coping skills. This study tested the validity of this model among collegiate cheerleaders, an injury-prone athlete group. Ninety-two collegiate cheerleaders recorded instances of injury over 12 weeks. Measures of life stress, competitive anxiety, coping style, social support, and previous injury were obtained. Heightened negative life stress did not coincide with greater injury. A positive stress-injury relationship was observed among cheerleaders reporting high avoidance coping. A negative …

Examination And Validation Of The Fundamental Lower Extremity Mobile Testing System, And Identification Of Best Practice To Mount Synthetic Turf To A Force Platform, Sean Quisenberry

Doctoral Dissertations

Annually, over 4 million high school and college athletes participate in competitive sports played on turf surfaces. Since the introduction of synthetic turf in the 1970s, it has become a common alternative to natural grass playing surfaces. However, athletes playing on synthetic turf has been found to have an increased incidence of lower extremity injury compared to natural grass.

Mechanical surface testing has found that synthetic turf exhibits significantly higher rotational and translational tractions compared to natural grass. The cleat-turf interface is often examined using a force platform, an instrument commonly used in a biomechanical laboratory. Mobile surface testing instruments …

Analysis Of Injuries And Costs Of Public Safety Occupations: A Systematic Review, Jade Witmer

Graduate Theses

Public safety occupations, such as firefighters and law enforcement, perform physically demanding tasks in unpredictable environments with additional external loads putting them at risk for sustaining a musculoskeletal injury while on duty. The goal of this systematic review was to address the incidence of musculoskeletal injuries and costs related to those in the public safety occupations of firefighting and law enforcement.

Examining Injury Trends In Wildland Firefighters To Develop An Injury Screening Assessment Pilot Project, Isabella Grace Callis

Graduate Student Theses, Dissertations, & Professional Papers

Fire suppression is an arduous profession that poses many work hazards and risks for wildland firefighters (WLFF) on a daily basis. One of the major threats to WLFF health on the line is musculoskeletal injury. Injury on the fire line and during personal training inhibits WLFF from performing their job to their full capacity. Currently there are no prevention strategies utilized to reduce the number of injuries this tactical population is experiencing. By accurately tracking injuries in WLFF, development of prevention strategies could assist in reducing the cost of injuries, maintain overall health in WLFF, and decrease work-related disability.

A …

Isolation, Athletic Identity, And Social Support: An Exploration Among Injured Collegiate Student-Athletes, Ally W. Claytor

Electronic Theses and Dissertations

Season ending and career ending injuries make up a large portion of all injuries (Tirabassi et al., 2016). Among psychological consequences to these types of injuries, isolation is a social consequence that has been identified as occurring after injury (Gould et al., 1997). Isolation is related to loss of identity for an athlete (Mankand et al., 2009). Additionally, low levels of support have been shown to increase feelings of isolation in injured athletes (Mitchell et al., 2014). The purpose of the present study was to explore the experience of isolation as a psychological response to injury among athletes with career …

The Influence Of Patellofemoral Pain On Muscle Coordination, Segment Coordination, And Segment Coordination Variability In Runners, Carl Jewell

Doctoral Dissertations

Management of patellofemoral pain syndrome (PFPS) remains a significant challenge in clinical practice and there is a need to understand the mechanisms for altered gait and muscular function which may lead to poor patient outcomes. The overall aim of the three studies in this dissertation was to determine if runners with current PFPS adapt their gait and muscle activation as a result of long-term, daily pain and/or in response to an acute pain flare and exertion during a moderate intensity 21-minute treadmill run compared to healthy controls. In addition, a resolved, asymptomatic PFPS group was included to investigate potential mechanisms …

The Effect Of Foot Strike In Female Runners, Courtney Dockry

Williams Honors College, Honors Research Projects

Abstract

PURPOSE: The purpose of this study is to determine if heel and forefoot striking influence on the amount and type of injuries in recreational female distance runners between the ages of 18 and 25. In addition, shoe type and training intensity were analyzed in relation to injury. METHODS: A quantitative, cross-sectional study was conducted anonymously utilizing The University of Akron’s Qualtrics survey tool. The survey was adopted based on Goss and Gross (2012). The survey was sent via email to members of the Zips Running Club, as well as other runners who fit the criteria to participate …

The Effects Of Self-Adherent Taping On Peak Inversion Angle And Eversion Moment Upon Landing During A Maximal Vertical Jump And A Depth Drop, Christopher M. Gregoire

Cal Poly Humboldt theses and projects

Ankle injuries are the most common injury in physically active adults with roughly 15% to 30% of all physical activity injuries being ankle injuries. The purpose of this study is to evaluate the effectiveness of a self-adherent ankle taping in reducing peak ankle inversion angle and peak ankle eversion moment upon landing during a max vertical jump and depth drop compared to jumping without a prophylactic ankle stabilizer.

Twelve volunteers participated in testing procedure on two separate days. Day one consisted of orientation while day two consisted of experimental data collection. The participant’s peak inversion angle and eversion moment were …

Bone Fracture Incidence, Measurement And Adaptation: An Exploration Through The Continuum From Incidence To Measurement And Adaptation, Mark Jenkins

Theses: Doctorates and Masters

This research encompasses four studies exploring bone adaptation, fracture incidence, and preventative measures to decrease fracture risk and increase bone health. Study one was a clinical audit exploring incidence rates for appendicular fractures in children in Western Australia over ten years. Diagnostic and remedial approaches were explored in studies two, three and four by examining the between-day reliability of upper limb scans; reliability of the osteogenic index (OI) for upper-body strength and power exercises; and the diagnostic value or utility of using pQCT in disease profiling, respectively. Fracture rates in the limbs of children were found to be increasing each …

Serum Ferritin's Relationship To Training Reduction Among College Distance Runners, Taylor John Thompson

Boise State University Theses and Dissertations

Introduction: Iron deficiency (ID), measured as serum ferritin (SF), has been found in 31% and 57% of elite male and female athletes respectively. In distance runners, ID has been found to affect up to 41% of men and 82% of women. There are significant health consequences of ID such as decreased bone mineral density, altered thyroid function, immune suppression, and fatigue. Purpose: To determine if there is a relationship between ID and training reductions due to injury, illness, and fatigue in collegiate distance runners. Hypothesis: Because ID affects bone health, fatigue, thyroid, and immune function, it is …

An Epidemiological Look At Injuries Among High School Athletes Participating In A Variety Of Sports For Both Sexes, Emily H. Wills

Undergraduate Honors Theses

Physical activity is part of a healthy lifestyle, but participating in athletic activities like team sports can lead to injury. This study was designed to find the differences in types of high school sports injuries and how frequently these injuries occur among different sports and between males and females. A survey was given to members of the football, boys’ basketball, girls’ basketball, baseball, softball, and volleyball teams of a central Appalachian high school. The highest rate of injury was found in girls’ basketball at 86.7%, followed by football at 85.2%, boys’ basketball at 70.6%, softball and volleyball each at 69.2%, …

Differences In Running Mechanics Between Overweight/Obese And Healthy Weight Children, Kristen Roles

Electronic Theses and Dissertations

Background/Purpose: Physical activity is commonly prescribed to reduce childhood obesity. However, due to differences in mechanics during low-impact activities, such as walking, obese children may be more prone to negative physical complications during high-impact activities, such as running. Therefore, this study analyzed the mechanical differences in running mechanics between healthy weight (HW) and overweight/obese (OV/OB) children. We hypothesized that when compared to HW children, OV/OB children would display higher vertical loading, greater joint moments and greater joint angular impulses during running. We also expect decreased sagittal plane range of motion and increased frontal plane range of motion of the hip, …

Identity Adaptation And The Potential For Psychological Growth Following Adversity For Injured Athletes, Alanna M. Riordan, Jill Tracey

Theses and Dissertations (Comprehensive)

The study was undertaken to gain a deeper understanding of the transition process out of competitive athletics experienced by competitive athletes after a career-limiting injury by examining three research questions: 1) What is the identity adaptation process of injured athletes? 2) To what extent, if any, do injured athletes experience growth following adversity? 3) What, if any, psychological skills are used in the injury/career transition processes? Nine former elite ath- letes were recruited through key informant sampling. There were three males and six females, with a mean age of 24.6 years. All participants sustained, at minimum, a season-ending injury and …

Lower Limb Fatigue Asymmetry Of Preferred And Non-Preferred Legs After A Repeated-Sprint Test In Football Players With Previous Hamstring Injury, Cameron Lord

Theses: Doctorates and Masters

Football is the most widely played sport in the world and is thus associated with the highest total number of injuries of all sports. 12% of all football injuries are to the hamstrings, as this muscle group is subjected to constant stress during training and match play performance (Ekstrand, Hägglund, Waldén, 2011; Woods, Hawkins, Maltby, Hulse, Thomas & Hodson, 2004). While the influence of limb dominance has been extensively examined as a risk factor for injury in upper limb-dominant sports (e.g. badminton, tennis and baseball), little research has focussed on the dominance in the lower limbs. Since almost all footballers …

Assessment Of Balance In Collegiate Cheerleaders: Is Implementing A Balance Training Program A Good Idea?, Caitlin Carroll

Honors Theses

Cheerleading has evolved immensely over the years. Gone are the days of simply shaking pom poms and yelling "GO TEAM!" Flips, twists, and prime athletic ability are what can be seen on the sidelines of any collegiate football or basketball game. Cheerleaders in general are assumed to have an above average level of balance, due to the nature of their training and sport. However, with these new skills comes the increasing risk for injury, and this risk may differ according to a cheerleader's position. As with any sport, cheerleading has specific positions. The cheerleaders that are put into the air …

Biomechanical Differences Of Two Common Football Movement Tasks In Studded And Non-Studded Shoe Conditions On Infilled Synthetic Turf, Elizabeth Anne Brock

Masters Theses

The purpose of this study was to examine kinematic and kinetic differences in three shoe conditions (traditional football shoes with natural and synthetic turf studs and a neutral running shoe) during two common football movements (a 180° cut and a land-cut movement) on infilled synthetic turf. Fourteen recreational male football players performed five trials in all three shoe conditions for a 180° cut as well as a land-cut maneuver. The kinematic and kinetic variables were analyzed with a 3 x 2 (shoe x movement) repeated measures analysis of variance (ANOVA, p<0.05). Peak free moment was significantly greater for the land-cut trials (p<0.001). Vertical GRFs were significantly greater for the land-cut trials (p<0.001). A cleat x movement interaction was seen for time to vertical impact GRF (p=0.048). A cleat main effect was found for time to vertical impact between natural turf cleat and synthetic turf cleat (p=0.019). Vertical loading rate was significantly greater in land-cut trials. Peak medial GRFs showed a significant cleat x movement interaction (p=0.002). The results from this study suggest that land-cut movement elicit greater vertical GRF and vertical impact loadings rates. The running shoe had significantly less dorsiflexion range of motion (ROM) than the synthetic turf studs. A significant cleat main effect was found for peak eversion velocity (p=0.005). Post hoc comparisons showed that it was significantly smaller in shoe than that natural turf stud (p=0.016) and synthetic turf stud (p=0.002). In general, there was a lack of differences between the shoe conditions for GRFs and kinematic variables. For the 180° cut movement, natural turf studs produced lowest peak medial GRF compared to the synthetic turf studs and the shoe. The results from this study suggest that land-cut movement elicit greater vertical GRF and vertical impact loadings rates. In general, there was a lack of differences of GRFs and kinematic variables between the shoe conditions. For the 180° cut movement, natural turf studs produced lowest peak medial GRF compared to the synthetic turf studs and the shoe. Overall, increased GRFs, especially in combination with rapid change of direction and deceleration may increase the chance of injury.

The Capability Of The Functional Movement Screen To Predict Injury In Division I Male And Female Track And Field Athletes, Brent Matthew Appel

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Track and field, formally know as athletics, formed part of the first Olympics in 776 BC and was included in the first modern Olympic Games in 1896 (Quercetany, 2000). Ever since the creation of this sport, sport related injury has followed. The inevitability of musculoskeletal injury associated with sports in general is well known amongst its participants, and the people who research it. According to the NCAA Injury Surveillance System, a sixteen year sampling period (1988 through 2004), recorded 182,000 injuries (Hootman, Dick, & Agel, 2007). Despite the risk for injury, people continue to participate in track and field. During …

An Evaluation Of The Motivations And Implications Of Participating In High School Athletics While Injured, Trevor M. Bateson

Recreation, Parks, and Tourism Administration

No abstract provided.