Sports Sciences Commons^™

The Stroke-Related Effects Of Hip Flexion Fatigue On Over Ground Walking, Megan M. Rybar, Eric R. Walker, Henry Kuhnen, Daniel R. Ouellette, Reivian Berrios, Sandra K. Hunter, Allison S. Hyngstrom

Exercise Science Faculty Research and Publications

Individuals post stroke often rely more on hip flexors for limb advancement during walking due to distal weakness but the effects of muscle fatigue in this group is not known. The purpose of this study was to quantify how stroke affects the influence of hip flexor fatigue on over ground walking kinematics and performance and muscle activation. Ten individuals with chronic stroke and 10 without stroke (controls) participated in the study. Maximal walking speed, walking distance, muscle electromyograms (EMG), and lower extremity joint kinematics were compared before and after dynamic, submaximal fatiguing contractions of the hip flexors (30% maximal load) …

Correspondence: Arthroscopic Partial Meniscectomy For Degenerative Meniscal Tear, Aaron J. Krych, Michael J. Stuart, Bruce A. Levy, David S. Jevsevar, Adolph J. Yates Jr., James O. Sanders, Christian Lattermann, Andreas H. Gomoll, Brian J. Cole, Teppo L.N. Järvinen, Raine Sihvonen, Antti Malmivaara

Orthopaedic Surgery and Sports Medicine Faculty Publications

No abstract provided.

The Effect Of Shear Stress, Potassium, And Adenosine On Α-1 Adrenergic Vasoconstriction Of Rat Soleus Feed Arteries, Tanner J. Heckle

Seaver College Research And Scholarly Achievement Symposium

During exercise, sympathetic nerve activity increases, augmenting the release of the neurotransmitter norepinephrine (NE) at the arterial wall and into the blood. NE binds to arterial adrenergic receptors to cause vasoconstriction, yet arteries in contracting skeletal muscle dilate during exercise. Previous evidence from Ives et al. suggests that heat and acidosis may partially inhibit constriction resulting from α-1 adrenergic receptors (termed sympatholysis). Our lab has previously demonstrated that rat soleus feed arteries respond to sympathetic signaling solely by α-1 adrenoceptors. We hypothesized that increased levels of arterial wall shear stress, potassium, or adenosine also contribute to sympatholysis, thereby reducing sympathetic …

Influence Of Athlete Heart Rate, Rate Of Perceived Exertion, And Anxiety In Rowing Practice And Competition, Katherine Skrlj Krengel

Master's Theses and Doctoral Dissertations

The purpose of this study was to investigate whether there is a significant correlation between heart rate (HR) and rate of perceived exertion (RPE) in rowing, how athlete perception of pre-race anxiety relates to HR and RPE, and how these variables change between practice and competition. Four subjects were tested over the course of their rowing season for somatic and cognitive anxiety, self-confidence, HR, and RPE in three different 2000 meter racing conditions: indoor ergometer, on-water racing, and on-water practice. There was no correlation between HR and RPE, and only maximum HR showed a difference between trial types. Studying more …

Impact Testing Of Youth-Level Helmets Versus College-Level Helmets, Nicole Hermann

Industrial Technology and Packaging

With so many studies being conducted on professional football players regarding concussions and other related brain injuries, it’s amazing that such an important demographic has been missed. While NFL players are just as subjected to serious injuries as anyone else or even more so, it is important to remember that these players are outfitted, in most cases, with top-of-the-line equipment -- especially their helmets. If the focus is shifted to a younger demographic, youth football players in middle school and high school, the equipment is far less advanced and in a vast majority of cases, has been previously used by …

Stress Sonography Of The Ulnar Collateral Ligament Of The Elbow In Professional Baseball Pitchers: A 10-Year Study., Michael G Ciccotti, Alfred Atanda, Levon N. Nazarian, Christopher C Dodson, Laurens Holmes, Steven B. Cohen

Department of Orthopaedic Surgery Faculty Papers

BACKGROUND: An injury to the ulnar collateral ligament (UCL) of the elbow is potentially career threatening for elite baseball pitchers. Stress ultrasound (US) of the elbow allows for evaluation of both the UCL and the ulnohumeral joint space at rest and with stress.

HYPOTHESIS: Stress US can identify morphological and functional UCL changes and may predict the risk of a UCL injury in elite pitchers.

STUDY DESIGN: Cross-sectional study; Level of evidence, 3.

METHODS: A total of 368 asymptomatic professional baseball pitchers underwent preseason stress US of their dominant and nondominant elbows over a 10-year period (2002-2012). Stress US examinations …

University Scholar Series: Ted Butryn And Matthew Masucci, Theodore Butryn, Matthew Masucci

University Scholar Series

Examining Female Triathletes' Awareness of Doping and the Anti-doping Movement

On February 26, 2014, Dr. Ted Butryn and Dr. Matthew Masucci spoke in the University Scholar Series hosted by Interim Provost Andy Feinstein at the Dr. Martin Luther King, Jr. Library. SJSU professors Ted Butryn and Matthew Masucci co-investigated on a two-year World Anti-Doping Agency grant, which examined female triathletes and their awareness of doping and the anti-doping movement. Dr. Butryn is a 2012 Salzburg Fellow and Professor of Sport Sociology and Sport Psychology in the Department of Kinesiology. Dr. Masucci is an Associate Professor of Interdisciplinary Sport Studies in …

Delivery And Pitch Type Alter Ground Reaction Forces In Baseball Pitching, Garrett Kass

Featured Research

Ground reaction forces (GRFs) exerted on a pitcher in reaction to the push of their legs against the ground create torques about the center-of-mass (CM) and generate the angular momentum necessary to rotate the body, including the segments of the throwing arm. Thus examination of GRFs provides insight into the causal mechanisms responsible for segmental rotation in baseball pitching. PURPOSE: To determine the effects of delivery [wind-up (WU) vs. stretch (ST)] and pitch type [fastball (FB) vs. change-up (CU)] on GRFs in pitching. METHODS: Eight collegiate baseball pitchers (4 right-handed and 4 left-handed) provided voluntary informed consent and threw maximal …

Cardiac Rehabilitation Programmes For Low-Risk Patients And Leisure Athletes: A Potential Paradox, Wendy Bjerke, Stu Steinman, Vincent Cotto

All PTHMS Faculty Publications

Background: Athletes are enrolled in cardiac rehabilitation (CR) programmes in small numbers and require unique diagnostic testing and training considerations. Additionally, many physiotherapists, exercise physiologists, athletic trainers and physicians lack experience treating athletes in CR due to their limited exposure to these types of patients. Content: This analysis distinguishes athletes from typical CR patients within the context of diagnostic testing, assessment, exercise prescription, and management. Several case studies present unique challenges and approaches to the rehabilitation of athletes in a CR setting. Conclusions: Athletes enrolled in CR should be treated and trained according to their abilities and goals. Combining traditional …

Effects Of Body Armor And Load Carriage On Lower Limb Joint Movement, Huiju Park, Donna Branson, Adriana Petrova, Semra Peksoz, Carla Goad, Aric J. Warren, Bert Jacobson, Panagiotis Kamenidis

Journal of Human Performance in Extreme Environments

This study investigated the impact of body armor weight and load magnitude and distribution on the lower extremities during walking. Range of motion (ROM) was assessed while seven healthy, male, right-handed, military university students walked while wearing seven different garments of varying weights (0.06 kg, 9 kg, 18 kg, and 27 kg) and load distributions. Decreased pelvic rotation found with an increase in weight implies decreased mobility by restricting the leg’s swing to propel the body forward. Increased ROM for pelvic tilt found with increased weight results from increased forward inclination suggesting an increased possibility for fatigue and musculoskeletal pain …

The Athletic Profile Of Fast Bowling In Cricket: A Review, James A. Johnstone, Andrew C.S. Mitchell, Gerwyn Hughes, Tim Watson, Paul A. Ford, Andrew T. Garrett

Kinesiology (Formerly Exercise and Sport Science)

Fast bowlers have a vital position in a cricket team and there is an increasing body of scientific literature that has reviewed this role over the last decade. Previous research has tended to focus on biomechanical analysis and injury prevention in performers. However, this paper aims to critically review the emerging contribution of physiological based literature linked to fast bowling in cricket and also highlight the current evidence related to simulated and competitive in-match performance. Furthermore, the review considers limitations with past research and possible avenues for future scientific investigation. It is clear with the advent of new applied mobile …

A Review Of Recent Perspectives On Biomechanical Risk Factors Associated With Anterior Cruciate Ligament Injury, Gerwyn Hughes

Kinesiology (Formerly Exercise and Sport Science)

There is considerable evidence to support a number of biomechanical risk factors associatiated with non-contact anterior cruciate ligament (ACL) injury. This paper aimed to review these biomechanical risk factors and highlight future directions relating to them. Current perspectives investigating trunk position and relationships between strength, muscle activity and biomechanics during landing/cutting highlight the importance of increasing hamstring muscle force during dynamic movements through altering strength, muscle activity, muscle length and contraction velocity. In particular, increased trunk flexion during landing/cutting and greater hamstring strength are likely to increase hamstring muscle force during landing and cutting which have been associated with reduced …

Skin Condition Secondary To Elbow Dislocation In A Collegiate Diver, Brandi Leigh Anders

Theses, Dissertations and Capstones

Objective: The purpose of the case study is to inform athletic trainers about complications with post-surgical athletes caused from the materials used during or after the surgery.

Background: A nineteen year old female collegiate cheerleader with previous left elbow injuries developed a rash post-surgery to repair the elbow’s instability.

Differential Diagnosis: The differential diagnosis for this athlete included a medial collateral ligament tear, ulnar neuritis, elbow subluxation and cubital tunnel narrowing.

Treatment: The athlete had been placed in a posterior splint for two weeks. The athlete noticed a red, itchy patch around each of the stiches which began to itch …

Systematic Condition In A Ncaa-I Collegiate Soccer Player, Ashley D. Smith

Theses, Dissertations and Capstones

Objective: The purpose of this case study is to inform athletic trainers of a systematic disease not common in our patient population.

Background: The athlete, a twenty-one YO, 160 lb, 69 inch female NCAA-I collegiate soccer goalie presented with complaint of bilateral elbow and knee joint pain and stiffness along with tender red itchy bumps on the anterior aspect of her shins. The athlete had flu-like symptoms and a URI prior to this complaint. The athlete has a history of anemia, mononucleosis, and streptococcal.

Differential Diagnosis: Rheumatoid arthritis, lymphoma, HIV/aids, erythema nodosum, lupus, Lyme disease.

Treatment: The athlete sought out …

Examination Of Two Hydration Protocols During Simulated Forced Marching Under Acute Heat Stress, David Alan Cottrill

Theses, Dissertations and Capstones

The purpose of this study was to identify and compare the effects of ingesting either water or 6% solution of carbohydrates, electrolytes, and water on hydration status during simulated military road marching in hot environmental conditions. Five volunteer male subjects completed two 60 minute experimental trials exercising at a high intensity (RER .90-.95) in an improvised environmental chamber (29.7 ^{_{+ or -}} .18^oC, 11.3 + or - 2.13% relative humidity) in full army combat uniform carrying 18.18kg of equipment. Random assignment of either water or solution was completed prior to trial 1, and consumption of the unselected protocol …

The Importance Of Managing Psychosocial Health: A Case Study, Mary Insana Fisher, Harold L. Merriman

Physical Therapy Faculty Publications

Managing the physical aspects of lymphedema requires an individual to be committed to daily treatment of this chronic condition. Performing manual lymph drainage, using compression bandaging or compression garments, exercising, and caring for the skin all take time and a high level of dedication. This commitment to self-care can be emotionally and psychologically exhausting.

When coupled with other emotional stressors in a patient’s life, successful treatment of lymphedema is challenging. We present a case demonstrating how the physical and psychological aspects of care interplay, and, when well-managed, can positively affect the outcome.

Breast Cancer Edge Task Force Outcomes - Clinical Measures Of Strength And Muscular Endurance: A Systematic Review, Mary Insana Fisher, Claire Davies, Christine Beuthin, Genevieve Colon, Brittany Zoll, Lucinda Pfalzer

Physical Therapy Faculty Publications

Background: Muscular strength deficits are a common morbidity following treatment for breast cancer. Accurate assessment of strength and muscular endurance following breast cancer treatments is essential in identifying deficits and planning rehabilitation strategies.

Purpose: The purpose of this systematic review was to identify strength and muscular endurance outcome measures for use with women treated for breast cancer that possess strong psychometric properties and are clinically useful.

Methods: Multiple electronic databases were searched between February and June 2013. Included studies of tools used to assess strength and muscular endurance met the following criteria: reported psychometric properties, clinically feasible methods, adults (preferably …

Test Items In The Complete And Short Forms Of The Bot-2 That Contribute Substantially To Motor Performance Assessments In Typically Developing Children 6-10 Years Of Age, Kadi Carmosino, Ashley Grzeszczak, Kaylie Mcmurray, Ali Olivo, Bo Slutz, Brittany Zoll, Betsy Donahoe-Fillmore, C. Jayne Brahler

Physical Therapy Faculty Publications

Objectives: Determine the magnitude of association between individual subtest items of the Bruininks-Oseretsky Test of Motor Proficiency, second edition (BOT-2), and the respective total subtest scores and to review items on the BOT-2 Short Form.

Background: The Bruininks-Oseretsky Test of Motor Proficiency, second edition (BOT-2), is a test used to measure gross motor proficiency in both typically developing children and children with developmental disabilities between the ages of four and twenty-one. The BOT-2 Short Form consists of fourteen test items proportionally selected from the subtests of the Complete Form. It can be used as a screening tool and takes less …

Using The Integrated Behavioral Model To Predict High-Risk Drinking Among College Students, Robert E. Braun Mph, Ches, Tavis Glassman Ph.D.,Mph, Jiunn-Jye Sheu Ph.D.,Msph, Tim Jordan Med, Faith Yingling Ph.D.,Med

Health and Sport Sciences Faculty Scholarship

This study assessed the Integrated Behavioral Model’s (IBM) utility in explaining high-risk drinking among college students. A total of 356 participants completed a four-page questionnaire based on the (IBM) theory and their drinking behavior. The results from a path analysis revealed three significant constructs (p<0.05) which predicted intentions to engage in high-risk drinking: experiential attitude (0.34), injunctive norms (0.23), and self-efficacy (-0.28). The IBM explained approximately 45% and 26% of variance in intentions and high-risk drinking, respectively. Although limited in its use thus far, the IBM shows promise in its application r

Development Of An Attribution Of Racial/Ethnic Health Disparities Scale, Robert E. Braun Phd., James H. Price, Jagdish Khubchandani, Erica Payton, Prasum Bhattacharjee

Health and Sport Sciences Faculty Scholarship

The purpose of this study was to develop an Attribution of Racial/Ethnic Health Disparities (AREHD) scale. A convenience sample of undergraduate college students (n = 423) at four Midwestern universities was recruited to respond to the survey. A pilot test with undergraduate students (n = 23) found the survey had good acceptability and readability level (SMOG = 11th grade). Using exploratory factor analysis we found the two a priori subscales were confirmed: individual responsibility and social determinants. Internal reliabilities of the subscales were: individual responsibility (alpha = 0.87) and social determinants (alpha = 0.90). Test–retest stability reliabilities were: individual responsibility …