Sports Sciences Commons^™

Models Of Video Feedback For Youth Athletes Performing An American Football Tackle, Eric Schussler, Richard J. Jagacinski, Ajit Chaudhari, John A. Buford, James A. Onate

Rehabilitation Sciences Faculty Publications

Context: Video feedback is an expeditious method for improving athlete safety when performing activities with an inherent risk of injury. Providing appropriate and validated feedback during tackling training in American football may be a mechanism for athletes to learn safe tackling performance.

Objective: To determine the effect of video feedback in the instruction of tackling form.

Design: Controlled laboratory study.

Setting: Laboratory.

Patients or Other Participants: A total of 32 youth football athletes (28 boys, 4 girls; age ¼ 11.8 6 0.8 years) participated in 1 day of training. Of those, 14 participants completed 2 additional days of training and …

Muslim Collegiate Student-Athletes' Experience With Fasting During Ramadan While Participating In Sport, Mishaal Amjad, Julie M. Cavallario, Nicolette A. Harris, Cailee E. Welch Bacon

Rehabilitation Sciences Faculty Publications

Context: As colleges and universities continue to focus on creating diverse, equitable, and inclusive environments, it is important to gain more knowledge on the experiences that Muslim student-athletes have while fasting during the month of Ramadan. While previous researchers have investigated the physical effects of fasting on the body, little is known about the challenges or support Muslim student athletes experience while fasting and participating in sport during Ramadan.

Objective: To explore the experiences of Muslim collegiate student-athletes regarding fasting during Ramadan while participating in sports.

Design: Consensual qualitative research.

Setting: Individual video interviews.

Participants: 12 Muslim collegiate student-athletes (4 …

Characteristics Of Patient Encounters For Athletic Training Students During Clinical Education: A Report From The Aate Research Network, Cailee E. Welch Bacon, Julie M. Cavallario, Stacy E. Walker, R.Curtis Bay, Bonnie L. Van Lunen

Rehabilitation Sciences Faculty Publications

Context: To enhance the quality of patient care, athletic training students (ATSs) should experience a wide variety of clinical practice settings, interact with diverse patient populations, and engage with patients that have a wide variety of conditions. It is unclear in what ways, if any, ATSs have diverse opportunities during clinical experiences.

Objective: To describe the characteristics of patient encounters (PEs) ATSs engage in during clinical experiences. Design: Multi-site, panel design.

Setting: 12 professional athletic training programs (ATPs; 5 Bachelor, 7 Master's).

Patients or Other Participants: 363 ATSs from the ATPs that used E*Value software to document PEs during clinical …

Content Validation Of The Athletic Training Milestones: A Report From The Association For Athletic Training Education Research Network, Cailee E. Welch Bacon, Barton E. Anderson, Julie M. Cavallario, Bonnie Van Lunen, Lindsey E. Eberman

Rehabilitation Sciences Faculty Publications

The Athletic Training Milestones were developed as a comprehensive framework to assess athletic trainers' knowledge, skill, and behavior acquisition across the continuum of athletic training practice. However, without established content validity, it is unclear whether the Athletic Training Milestones can be used effectively as a clinical evaluation and research tool to evaluate competence and performance across multiple users and sites. We conducted a highly conservative content validity index (CVI) with data from 12 content experts. Our findings revealed an extremely high overall scale CVI of 0.99, and CVI scores of the 28 individual subcompetency items assessed ranged from 0.83 to …

A Systematic Review Of Center Of Mass As A Measure Of Dynamic Postural Control Following Concussion, Sarah Patejak, Joshua Forrest, Emily Harting, Mable Sisk, Eric Schussler

Rehabilitation Sciences Faculty Publications

BACKGROUND: The incidence of sports-related concussion in the US is between 1.6-3.8 million annually. Identification of ongoing impairment post-concussion continues to be challenging, as research indicates many patients are cleared for return to activity while still suffering subclinical impairment of function. Purpose: To identify and review the current literature on the use of center of mass (COM) during gait as a potential indicator variable after concussive injury. Study Design: Systematic Review.

METHODS: A Pubmed search was undertaken utilizing search terms involving gait performance and concussion. Study inclusion criteria included: (1) COM used as a variable in data analysis, (2) study …

Celebrating Women Scholars In Athletic Training, Julie M. Cavallario, Cailee E. Welch Bacon, Lindsey E. Eberman, Stacy E. Walker

Rehabilitation Sciences Faculty Publications

No abstract provided.

Normative Functional Performance Values In High School Athletes: The Functional Pre-Participation Evaluation Project, James A. Onate, Cambrie Starkel, Daniel R. Clifton, Thomas M. Best, James Borchers, Ajit Chaudhari, Eric Schussler, Bonnie L. Van Lunen

Rehabilitation Sciences Faculty Publications

Context: The fourth edition of the Preparticipation Physical Evaluation recommends functional testing for the musculoskeletal portion of the examination; however, normative data across sex and grade level are limited. Establishing normative data can provide clinicians reference points with which to compare their patients, potentially aiding in the development of future injury-risk assessments and injury-mitigation programs.

Objective: To establish normative functional performance and limb-symmetry data for high school-aged male and female athletes in the United States.

Design: Cross-sectional study.

Setting: Athletic training facilities and gymnasiums across the United States.

Patients or Other Participants: A total of 3951 male and female athletes …

Inter-Rater Agreement And Validity Of A Tackling Performance Assessment Scale In Youth American Football, Eric Schussler, Richard J. Jagacinski, Susan E. White, Ajit M. Chaudhari, John A. Buford, James A. Onate

Rehabilitation Sciences Faculty Publications

Background: Long term neurologic injury and concussion have been identified as risks from participation in American football. Altering tackling form has been recommended to reduce the risk of neurologic injury caused by head accelerations when tackling. The purpose of this research is to determine the inter-rater agreement and validity of the Qualitative Youth Tackling System (QYTS), a six-item feedback scale to correct tackling form, when utilized by novice and expert raters.

Hypothesis: Experienced raters will have higher levels of agreement with each other and with motion capture when compared to novice raters. Methods: Both novice and experienced raters viewed video …

Epidemiology Of Knee Sprains In Youth, High School, And Collegiate American Football Players, Daniel R. Clifton, James A. Onate, Eric Schussler, Aristarque Djoko, Thomas P. Dompier, Zachary Y. Kerr

Rehabilitation Sciences Faculty Publications

Context: Assessment of health-related quality of life (HRQOL) after injury is important. Differences in HRQOL between nonathletes and athletes and between injured and uninjured athletes have been demonstrated; however, the evidence has not been synthesized.

Objective: To answer the following questions: (1) Does HRQOL differ among adolescent and collegiate athletes and nonathletes? (2) Does HRQOL differ between injured adolescent and collegiate athletes or between athletes with a history of injury and uninjured athletes or those without a history of injury?

Data Sources: We systematically searched CINAHL, MEDLINE, SPORTDiscus, and PubMed. A hand search of references was also conducted. Study Selection: …

Comparison Of A Head Mounted Impact Measurement Device To The Hybrid Iii Anthropomorphic Testing Device In A Controlled Laboratory Setting, Eric Schussler, David Stark, John H. Bolte, Yun Seok Kang, James A. Onate

Rehabilitation Sciences Faculty Publications

Background: Reports estimate that 1.6 to 3.8 million cases of concussion occur in sports and recreation each year in the United States. Despite continued efforts to reduce the occurrence of concussion, the rate of diagnosis continues to increase. The mechanisms of concussion are thought to involve linear and rotational head accelerations and velocities. One method of quantifying the kinematics experienced during sport participation is to place measurement devices into the athlete’s helmet or directly on the athlete’s head.

Purpose: The purpose of this research to determine the accuracy of a head mounted device for measuring the head accelerations experienced by …

Physical Activity And Situational Interest In Mobile Technology Integrated Physical Education: A Preliminary Study, Xihe Zhu, Loren A. Dragon

Human Movement Sciences & Special Education Faculty Publications

Background: Mobile technology permeates every aspect of student lives. The question is whether mobile technology integration can produce desirable effects in the gymnasium.

Objective: This preliminary study aimed to investigate the effects of mobile technology integration on student situational interest and physical activity fluctuation in physical education lessons.

Methods: Sixth grade students (N = 53) were randomly placed into either an experiment group by class that utilized mobile technology-integrated resources (iPad and applications), or a comparison group that did not utilize technology. Both groups received five identical physical education lessons. Student physical activity was tracked with accelerometers, and they completed …

Health-Related Quality Of Life In Athletes: A Systematic Review With Meta-Analysis, Megan N. Houston, Matthew C. Hoch, Johanna M. Hoch

Rehabilitation Sciences Faculty Publications

Context: Assessment of health-related quality of life (HRQOL) after injury is important. Differences in HRQOL between nonathletes and athletes and between injured and uninjured athletes have been demonstrated; however, the evidence has not been synthesized.

Objective: To answer the following questions: (1) Does HRQOL differ among adolescent and collegiate athletes and nonathletes? (2) Does HRQOL differ between injured adolescent and collegiate athletes or between athletes with a history of injury and uninjured athletes or those without a history of injury?

Data Sources: We systematically searched CINAHL, MEDLINE, SPORTDiscus, and PubMed. A hand search of references was also conducted.

Study Selection: …

Patient-Reported Outcomes In Male And Female Collegiate Soccer Players During An Athletic Season, Johanna M. Hoch, Beth Druvenga, Brittany A. Ferguson, Megan N. Houston, Matthew C. Hoch

Rehabilitation Sciences Faculty Publications

Context: Clinicians are urged to document patient-based outcomes during rehabilitation to measure health-related quality of life (HRQOL) from the patient's perspective. It is unclear how scores on patient-reported outcome instruments (PROs) vary over the course of an athletic season because of normal athletic participation.

Objective: Our primary purpose was to evaluate the effect of administration time point on HRQOL during an athletic season. Secondary purposes were to determine test-retest reliability and minimal detectable change scores of 3 PROs commonly used in clinical practice and if a relationship exists between generic and region-specific outcome instruments.

Design: Cross-sectional study.

Setting: Athletic facility. …

Patient-Reported Outcome Measures In Individuals With Chronic Ankle Instability: A Systematic Review, Megan N. Houston, Johanna M. Hoch, Matthew C. Hoch

Rehabilitation Sciences Faculty Publications

Context: A comprehensive systematic literature review of the health-related quality-of-life (HRQOL) differences among individuals with chronic ankle instability (CAI), ankle-sprain copers, and healthy control participants has not been conducted. It could provide a better indication of the self-reported deficits that may be present in individuals with CAI.

Objective: To systematically summarize the extent to which HRQOL deficits are present in individuals with CAI.

Data Sources: We searched for articles in the electronic databases of EBSCO Host and PubMed Central using key words chronic, functional, mechanical, coper, instability, sprains, and patient-assessed. We also performed a hand search of reference lists, authors, …

Weight-Bearing Dorsiflexion Range Of Motion And Landing Biomechanics In Individuals With Chronic Ankle Instablity, Matthew C. Hoch, Kelley E. Farwell, Stacey L. Gaven, Joshua T. Weinhandl

Rehabilitation Sciences Faculty Publications

Context: People with chronic ankle instability (CAI) exhibit less weight-bearing dorsiflexion range of motion (ROM) and less knee flexion during landing than people with stable ankles. Examining the relationship between dorsiflexion ROM and landing biomechanics may identify a modifiable factor associated with altered kinematics and kinetics during landing tasks.

Objective: To examine the relationship between weight-bearing dorsiflexion ROM and single-legged landing biomechanics in persons with CAI.

Design: Cross-sectional study.

Setting: Laboratory.

Patients or Other Participants: Fifteen physically active persons with CAI (5 men, 10 women; age = 21.9 ± 2.1 years, height = 168.7 ± 9.0 cm, mass = 69.4 …

Perceptions Of Support Networks During The Graduate Assistant Athletic Trainer Experience, Stephanie M. Mazerolle, Stephanie Clines, Christianne M. Eason, William A. Pitney

Rehabilitation Sciences Faculty Publications

Context: The graduate-assistant position can be a highly influential experience because it is often the first time novice athletic trainers (ATs) are practicing autonomously.

Objective: To gain an understanding of how graduate-assistant ATs (GAATs) perceive professional socialization and mentorship during their assistantships.

Design: Semistructured phone interviews. Setting: Graduate-assistant ATs in various clinical settings.

Patients or Other Participants: Twenty-five GAATs (20 women, 5 men) studying in 1 of 3 academic tracks (postprofessional athletic training = 8, athletic training-based curriculum = 11, non-athletic training-based curriculum = 6). Median age was 24 years.

Data Collection and Analysis: Phone interviews were digitally recorded and …

A Feedback Inclusive Neuromuscular Training Program Alters Frontal Plane Kinematics, Eric K. Greska, Nelson Cortes, Bonnie L. Van Lunen, James A. Oñate

Rehabilitation Sciences Faculty Publications

-Anterior cruciate ligament (ACL) neuromuscular training programs have demonstrated beneficial effects in reducing ACL injuries, yet further evaluation of their effects on biomechanical measures across a sports team season is required to elucidate the specific factors that are modifiable. The purpose of this study was to evaluate the effects of a 10-week off-season neuromuscular training program on lower extremity kinematics. Twelve Division I female soccer players (age: 19.2 ± 0.8 years, height: 1.67 ± 0.1 m, weight: 60.2 ± 6.5 kg) performed unanticipated dynamic trials of a running stop-jump task pretraining and posttraining. Data collection was performed using an 8-camera …

Developing A Pricing Strategy For The Los Angeles Dodgers, Denise Linda Parris, Joris Drayer, Stephen L. Shapiro

Human Movement Sciences & Special Education Faculty Publications

In 2011, the Los Angeles Dodgers Stadium averaged 36,236 fans per game, dropping from 43,979 in 2010 and 46,440 in 2009, an overall loss of about 10,000 fans per game in just two years. In 2011, The Dodgers' attendance ranking fell from first to eleventh in Major League Baseball (MLB), which amounted to a loss of over 800,000 tickets sold per year, as well as the resulting revenue from concessions and parking. Despite the Dodgers' long and storied history, ticket demand had been negatively influenced by inconsistent performance, mounting bad publicity surrounding owner Frank McCourt's divorce, the beating of a …

Dynamic Ticket Pricing In Sport: An Agenda For Research And Practice, Joris Drayer, Stephen L. Shapiro, Seoki Lee

Human Movement Sciences & Special Education Faculty Publications

For decades, the airline and hotel industries have regularly changed prices to keep pace with fluctuating levels of consumer demand. This demand-based approach to pricing is referred to as revenue management. Meanwhile, the sport industry has traditionally underpriced tickets using a cost-based approach in order to maximize attendance and promote fan satisfaction. However, as operating costs have grown, sport organizations are now forced to reconsider these conservative pricing practices. Subsequently, in 2009, the San Francisco Giants were the first team to utilize dynamic pricing, which is a strategy that mirrors the revenue management approach. While data supporting or refuting the …

A Functional Agility Short-Term Fatigue Protocol Changes Lower Extremity Mechanics, Nelson Cortes, David Quammen, Shawn Lucci, Eric Greska, James Onate

Human Movement Sciences & Special Education Faculty Publications

The purpose of this study was to evaluate the effects of a functional agility fatigue protocol on lower extremity biomechanics between two unanticipated tasks (stop-jump and sidestep). The subjects consisted of fifteen female collegiate soccer athletes (19 ± 0.7 years, 1.67 ± 0.1 m, 61.7± 8 kg) free of lower extremity injury. Participants performed five trials of stop-jump and sidestep tasks. A functional short-term agility protocol was performed, and immediately following participants repeated the unanticipated running tasks. Lower extremity kinematic and kinetic values were obtained pre and post fatigue. Repeated measures analyses of variance were conducted for each dependent variable …

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 …

Looking At Gender Differences Through The Lens Of Sport Spectators, Lynn Ridinger, Daniel C. Funk

Human Movement Sciences & Special Education Faculty Publications

This paper explores common assumptions about the intrinsic differences between male and female consumers within a subset of leisure consumption - sport spectating. This research utilized the Sports Interest Inventory (SII) (Funk, Mahony & Ridinger, 2002) to examine differences between spectators (N = 959) attending men's and women's basketball games at a NCAA Division I institution. MANOVA results revealed nine differences for Team-Gender, seven differences for Spectator-Gender, and three interaction effects. Multiple linear regression analyses revealed that three core interest factors (university pride, team interest, and vicarious achievement) explained a significant proportion of variance in commitment and attendance behavior for …

Characterizing Consumer Motivation As Individual Difference Factors: Augmenting The Sports Interest Inventory (Sii) To Explain Level Of Spectator Support, Daniel C. Funk, Daniel F. Mahony, Lynn L. Ridinger

Human Movement Sciences & Special Education Faculty Publications

The central focus of this study was to examine how individual difference factors could be used to explain various levels of consumer support for a specific sport property. The present study extends the Sport Interest Inventory (SII) in order to enhance current understanding of consumer motives in relation to sport in general and women's competitive sport in particular. Confirmatory factor analysis confirmed the 12-item Sport Interest Inventory, measuring 14 individual difference factors related to spectator interest in soccer. Multiple Linear regression analysis revealed that five motivational characteristic--(a) sport interest, (b) team interest, (c) vicarious achievement, (d) role modeling, and (e) …