Kinesiotherapy Commons^™

Efficacy Of Electromyography And The Dead Bug Exercise, Taylor M. Scavo, Rachel C. Cooklin, Erika N. Faria, Madeline L. Johnson, Eric Sternlicht

Student Scholar Symposium Abstracts and Posters

The Dead Bug exercise is performed in physical therapy clinics to restore lumbar spine stability and core strength in patients with lower back pain (LBP). The aim of this study was to evaluate the efficacy of using electromyography (EMG) feedback to enhance proper mechanics during the Dead Bug exercise. Sixteen healthy, college age students volunteered as subjects for the study. Subjects performed the Dead Bug (Fig. 1a.) with and without visual EMG cues and were given instructions on how to execute the exercise. Data was recorded using a BTS FREEEMG Analyzer and signal processed and data analyzed using the BTS …

The Effects Of Static Stretching On Pennation Angle And Muscle Power Production In The Triceps Surae Complex, Lacey G. Dennis

Honors College Theses

Many studies have examined how power is affected by static stretching. However, little research has been completed to examine why the muscle power production is affected by static stretching. The purpose of this study is to see the correlation of how pennation angle (PA) and muscle power production (MPP) is affected by a static stretching protocol. For the methodology, PA of the medial and lateral gastrocnemius muscle will be measured using Terason ultrasound machine. After the PA is measured participants will perform a vertical jump on a force plate while utilizing a Vertec, to determine the height of their jump …

Effects Of Ankle Weights On Metabolic Response And Muscle Activity On A Lower Body Positive Pressure Treadmill 2017, Saige Hupman

Master's Theses

Lower body positive pressure (LBPP) treadmills are growing in popularity for rehabilitative use, as the benefits of exercising at partially supported body weight may induce faster recovery. It is unknown if there are certain practices that increase exercise intensity while maintaining positive effects of LBPP. Adding ankle weights when walking or running could increase intensity of rehabilitation programs while maintaining the comfort of supported body weight. PURPOSE: To measure metabolic response (VO2, RER, HR, Caloric expenditure), RPE, and lower limb electromyography (EMG) amplitudes of LBPP treadmill walking and running with and without ankle weights. METHODS: Sixteen participants (Age: 21.94 ± …

The Effect Of Three Different Ankle Braces On Vertical Jump Performance In Female College Volleyball Players, Ashley M. Jefferson

Undergraduate Theses

Background/Purpose: Ankle braces are often used to stabilize the ankle joint of an athlete to reduce the risk of initial injury while participating in athletic activity or to protect the joint from re-injury when returning to play. The purpose of this study was to examine the effects of application of three different braces on vertical jump performance in collegiate female volleyball players. A secondary aim was to compare participant preference and satisfaction on selected characteristics of each of the three different braces.

Subjects: 31 female varsity/club college volleyball players >18 years of age.

Materials/Methods: Health History Assessment and a dynamic …

High Salt Intake Augments Excitability Of Pvn Neurons In Rats: Role Of The Endoplasmic Reticulum Ca2+ Store, Robert A. Larsen, Andrew D. Chapp, Le Gui, Michael J. Huber, Zixi Jack Cheng, Zhiying Shan, Qing-Hui Chen

Department of Kinesiology and Integrative Physiology Publications

High salt (HS) intake sensitizes central autonomic circuitry leading to sympathoexcitation. However, its underlying mechanisms are not fully understood. We hypothesized that inhibition of PVN endoplasmic reticulum (ER) Ca²⁺ store function would augment PVN neuronal excitability and sympathetic nerve activity (SNA). We further hypothesized that a 2% (NaCl) HS diet for 5 weeks would reduce ER Ca²⁺ store function and increase excitability of PVN neurons with axon projections to the rostral ventrolateral medulla (PVN-RVLM) identified by retrograde label. PVN microinjection of the ER Ca²⁺ ATPase inhibitor thapsigargin (TG) increased SNA and mean arterial pressure (MAP) in a …

P19. Head Impacts In Youth Soccer Are Comparable To American Football, Alexandra B. Harriss, Aakash Naik, Dave Walton, James P. Dickey

Western Research Forum

Head Impacts in youth soccer are comparable to American Football

Alexandra Harriss¹, Aakash Naik¹, David M. Walton², James P. Dickey¹

School of Kinesiology¹, School of Physical Therapy², Western University, London, Canada

Background: Research has unequivocally demonstrated that females and youth soccer players are at a significant high risk of concussion. Recently, concerns for “heading” have been raised due to possible adverse neurological effects. While head impact accelerations and rotations have been investigated in American football, head impacts in youth soccer have not been rigorously studied. The purpose is to …

Perceptions Of The Athletic Training Profession By A Collegiate Athlete Patient Population, Bethany Estelle Beuhring

Theses, Dissertations and Capstones

Patient satisfaction is an advancing topic amongst health care professions, but athletic training has not kept up with these advances. The purpose of this study was to assess patient satisfaction and perception of the athletic training profession as related to their exposure to athletic training services over the course of an athletic career. Four hundred one student-athletes from a single institution were sent an email containing a link to the online-questionnaire, 93 student-athletes submitted the questionnaire. Weak negative correlations were found between questions regarding patient satisfaction with athletic training care and patient perception of the athletic training profession. Results imply, …

Wellness And Multiple Sclerosis: The National Ms Society Establishes A Wellness Research Working Group And Research Priorities, Robert W. Motl, Ellen M. Mowry, Dawn M. Ehde, Nicholas G. Larocca, Kathy E. Smith, Kathleen Costello, Lynne Shinto, Alexander V. Ng, Amy B. Sullivan, Barbara Geisser, Kevin K. Mccully, Bo Fernhall, Malachy Bishop, Matthew Plow, Patrizia Casaccia, Nancy D. Chiaravalloti

Exercise Science Faculty Research and Publications

Background:

People with multiple sclerosis (MS) have identified “wellness” and associated behaviors as a high priority based on “social media listening” undertaken by the National MS Society (i.e. the Society).

Objective:

The Society recently convened a group that consisted of researchers with experience in MS and wellness-related research, Society staff members, and an individual with MS for developing recommendations regarding a wellness research agenda.

Method:

The members of the group engaged in focal reviews and discussions involving the state of science within three approaches for promoting wellness in MS, namely diet, exercise, and emotional wellness.

Results:

That process informed a …

Adaptations Of Lumbar Biomechanics After Four Weeks Of Running Training With Minimalist Footwear And Technique Guidance: Implications For Running-Related Lower Back Pain, Szu-Ping Lee, Joshua P. Bailey, Jo Armour Smith, Stephanie Barton, David Brown, Talia Joyce

Physical Therapy Faculty Articles and Research

Objectives

To investigate the changes in lumbar kinematic and paraspinal muscle activation before, during, and after a 4-week minimalist running training.

Design

Prospective cohort study.

Setting

University research laboratory.

Participants

Seventeen habitually shod recreational runners who run 10–50 km per week.

Main outcome measures

During stance phases of running, sagittal lumbar kinematics was recorded using an electrogoniometer, and activities of the lumbar paraspinal muscles were assessed by electromyography. Runners were asked to run at a prescribed speed (3.1 m/s) and a self-selected speed.

Results

For the 3.1 m/s running speed, significant differences were found in the calculated mean lumbar posture …

A Comparison Of Multipath And Conventional Neuromuscular Electrical Stimulation, Cody Brian Bremner

Dissertations

Neuromuscular electrical stimulation (NMES) is the use of an electrical current for the purpose of eliciting a muscular response, and these treatments are most often used clinically for the specific purpose of increasing quadriceps strength. It is commonly accepted that the effectiveness of NMES for this purpose is primarily determined by the NMES training intensity. However, spatially limited motor unit recruitment, fatigue and discomfort negatively impact NMES-induced torque, which subsequently reduces NMES training intensities. Due to the importance of NMES training intensity, a substantial amount of research has focused on strategies designed to increase NMES-induced torque production, as well as …

Influence Of Posture-Cuing Shirt On Tennis Serve Kinematics In Division Iii Tennis Players, Joseph Zappala, Caroline Orrego, Emily Boe, Heather Fechner, Derek Salminen, Daniel Cipriani

Physical Therapy Faculty Articles and Research

Objective: Injuries to the shoulder complex are common in overhead athletes, often related to kinematics of the shoulder complex. This study evaluated the influence of a posture-cuing shirt on internal rotation velocity of the shoulder during a tennis swing and to determine this influence on shoulder external rotation position. Methods: Nine healthy competitive college tennis players from a Division III college participated in this study. High speed motion capture allowed for 3-D analysis of shoulder kinematics during a tennis serve. Two conditions were evaluated while the athletes performed a high velocity tennis serve: standard tennis shirt and a …

Mechanical Demands Of The Hang Power Clean And Jump Shrug: A Joint-Level Perspective, Kristof Kipp, Philip Malloy, Jordan Smith, Matthew D. Giordanelli, Michael T. Kiely, Christopher Geiser, Timothy J. Suchomel

Exercise Science Faculty Research and Publications

The purpose of this study was to investigate the joint- and load-dependent changes in the mechanical demands of the lower extremity joints during the hang power clean (HPC) and the jump shrug (JS). Fifteen male lacrosse players were recruited from an NCAA DI team, and completed three sets of the HPC and JS at 30%, 50%, and 70% of their HPC 1-Repetition Maximum (1-RM HPC) in a counterbalanced and randomized order. Motion analysis and force plate technology were used to calculate the positive work, propulsive phase duration, and peak concentric power at the hip, knee, and ankle joints. Separate three-way …

Muscle-Specific Effective Mechanical Advantage And Joint Impulse In Weightlifting, Kristof Kipp, Chad Harris

Exercise Science Faculty Research and Publications

Lifting greater loads during weightlifting exercises may theoretically be achieved through increasing the magnitudes of net joint impulses or manipulating the joints’ effective mechanical advantage (EMA). The purpose of this study was to investigate muscle-specific EMA and joint impulse as well as impulse-momentum characteristics of the lifter-barbell system across a range of external loads during the execution of the clean. Collegiate-level weightlifters performed submaximal cleans at 65, 75, and 85% of their 1-repetition maximum (1-RM) while data from a motion analysis system and a force plate were used to calculate lifter-barbell system impulse and velocity, as well as net extensor …

Do Running Kinematics Change On The Alter-G Treadmill? [2016], Brittany Lavaute

Master's Theses

The Alter-G lower body positive pressure treadmill, also known as the antigravity treadmill, provides a unique means of exercising for rehabilitation patients and low-impact training in athletes. The purpose of this study was to examine the interaction effect of four different treadmill weighted conditions and three different running velocities (2.68 m.s-1, 3.13 m.s-1, and 3.58 m.s-1) on the kinematic variables of step length, step rate, contact time, and flight time on the Alter-G treadmill (AG) and on the regular treadmill (TM). Fifteen participants completed two separate days of testing. All individuals ran at four different conditions (100%, 80%, 60%, and …

The Effects Of Resistance Training Frequency On Muscle Hypertrophy And Strength In Healthy Trained Individuals: Literature Review, Alexander C. Boivin

Honors Undergraduate Theses

The purpose of this study is to determine the effects of increased resistance training frequency on strength and hypertrophy in trained individuals. Six Studies were deemed eligible based on the inclusion exclusion criteria. The inclusion criteria for this review were healthy trained individuals. “Trained” refers to over one year of resistance training experience. Exclusion Criteria were study’s that examined either untrained or obese individuals as participants. The evidence indicates a dose-response trend in frequency. Resistance training each muscle group twice a week may be superior compared to once per week. Further more, resistance training each muscle group three times a …

Prospective Assessment Of Return To Pre-Injured Levels Of Activity, Aaron D. Sciascia

Theses and Dissertations--Rehabilitation Sciences

Determining return to pre-injured levels of play following athletic injury can be challenging. The current practice of making decisions following rehabilitation as to whether or not a patient has returned to pre-injured levels of activity is potentially inaccurate because initial assessments of perceived physical capability are performed at a time of relative dysfunction or are based on patient recall. Since there is no true baseline of perceived and physical function prior to injury it is difficult to determine if an athlete has return to baseline or is simply better than they were at the time of injury. Therefore, it is …

A Randomized And Blinded Study For The Treatment Of Glenohumeral Internal Rotation Range Of Motion Restriction: The Prone-Passive Stretching Technique, Dave Hammons Edd, John W. Mcchesney Ph.,D., Michael Curtin, Md, Ronald Pfeiffer, Ed.D, Keith Thiede, Phd

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

A Randomized and Blinded Study for the Treatment of Glenohumeral Internal Rotation Range of Motion Restriction: The Prone-Passive Stretching Technique

Background: Prior research has focused on specific interventions to reduce the symptoms of glenohumeral internal rotation deficit (GIRD) and posterior glenohumeral (GH) tightness; however, clinicians often utilize a prone stretching technique instead for which a lack of evidence exists to support the use of.

Hypothesis: Improvements in GH Internal rotation (IR) range of motion (ROM) will be greater in a group of overhead athletes using a prone-passive stretching technique than for overhead athletes using a cross-body stretching technique.

Design …

Upper Body Posture And Pain In Division I Female Volleyball And Softball Athletes, Brittany M. Plunkett Castilla

Dissertations and Theses

Participation in athletics is a popular pastime and form of entertainment. Children often begin to specialize in one sport at a young age in an effort to excel, which increases physical stress and the potential for injuries. Athletes participating in overhead sports are at increased risk of upper body chronic injuries, in part because the shoulder is an unstable hypermobile joint. Posture may also be affected in these athletes because of the demands placed on the upper body. The purpose of this study was to measure the upper body posture in a sample of Division I collegiate volleyball and softball …

Direct Pro-Inflammatory Effects Of Prorenin On Microglia, Peng Shi, Justin L. Grobe, Fiona A. Desland, Guannan Zhou, Xiao Z. Shen, Zhiying Shan, Et. Al.

Department of Kinesiology and Integrative Physiology Publications

Neuroinflammation has been implicated in hypertension, and microglia have been proposed to play an important role in the progression of this disease. Here, we have studied whether microglia are activated within cardiovascular regulatory area(s) of the brain during hypertension, especially in high blood pressure that is associated with chronic activation of the renin-angiotensin-system. In addition, we determined whether prorenin, an essential component of the renin-angiotensin-system, exerts direct pro-inflammatory effects on these microglia. Our data indicate that two rodent models which display neurogenic hypertension and over activation of the renin-angiotensin-system in the brain (sRA mice and spontaneously hypertensive rats) exhibit microglial …

The Effects Of Different Warm-Up Methods On Anaerobic Power, Bradley Kendall

Masters Theses

The purpose of this study was to investigate the effects of various warm-up methods on Wingate Anaerobic Test (WAnT) performance. The goal of this study was to investigate how a general cycling warm-up, a dynamic stretching routine, a static stretching routine, and the combination of both static stretching followed by cycling and dynamic stretching followed by cycling affect WAnT performance. Ten recreationally active subjects (5 males, 5 females), completed five WAnT on a Monark Ergomedic 984E cycle separated by at least 48 hours. Subjects were randomly assigned to an order of conditions and performed a different condition prior to each …

Effects Of Jump Training On Bone Mineral Density In Young Adult Females, Battogtokh Zagdsuren

Masters Theses & Specialist Projects

Physical activity is critical to bone health. However, not all physical activity has optimum effect on bone health and metabolism. The purpose of this study was to determine the effects of a short term progressive jumping protocol on bone mineral density in college age Asian females. Sixteen participants aged18-28 years enrolled in the study. Participants were assigned to exercise (n=9) and control (n=8) groups. The exercise group completed a two-legged depth jump from an approximate 20cm stepbench followed immediately by a maximum vertical jump using arm swings for five days per week for two weeks. Each depth jump and vertical …

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 …

Injured Athletes' Preferences Regarding Source Of Emotional Support, Kristin Kutz

Honors Projects

Athletes often experience emotional distress as a result of an injury. Feelings of loss, decreased self-esteem, frustration, and anger are not uncommon. Athletic trainers (ATs) who work with injured athletes are focused on helping the progression of athletes' physical healing, but their role in helping athletes emotionally and psychologically is often unclear. There are twelve Athletic Training Education Competencies that the National Athletic Training Association requires to be taught to undergraduate AT students, one of them being psychosocial intervention and referral. However, little research has been done to define the exact role of ATs in this area, as well as …

Effectiveness Of Spinal Unloading Positions In Recovering From Spinal Shrinkage Incurred While Running, Jennifer Kumanchik

EWU Masters Thesis Collection

No abstract provided.

The Acute Effects Of Upper Extremity Stretching On Throwing Velocity In Untrained Baseball Throwers, Ashley Delobel, Lanisa Harveson, Jason Melton, Michael Williams

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose: The purpose of this study was to examine the effects of static and proprioceptive neuromuscular facilitation (PNF) stretching of shoulder internal rotators on throwing velocity as compared to a typical dynamic warm-up.

Subjects: 27 male untrained throwers (mean age = 25.1 years old, SD =2.4) with basic knowledge of throwing mechanics.

Methods:The study was conducted over a series of three sessions with at least one week between each session. During each session, subjects warmed-up, threw 10 pitches, were randomly assigned to one of three separate stretching protocols, and then threw 10 more pitches.The three protocols were static stretching, …

Test-Retest Reliability And Responsiveness Of Gaze Stability And Dynamic Visual Acuity In High School And College Football Players, Denise Kaufman, Mallory Puckett, Mitchell Smith

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objectives: The purpose of this study was to establish reliability and responsiveness of the active dynamic visual acuity test (DVAT) at speeds of 150 to 200 degrees per second (deg/sec) and the gaze stabilization test (GST) in high school and college football players.

Design: Reliability design

Setting, Participants, Main Outcome Measures: A total of 50 high school and college football athletes completed vestibulo-ocular reflex testing using the DVAT and GST in the yaw (horizontal) and pitch (vertical) planes on two separate occasions within 14 days.

Results: Test-retest reliability for the DVAT was good in yaw, Intraclass Correlation Coefficient (ICC) (3,3) …

Examining Lower Extremity Range Of Motion And Movement Variability Chages Due To Focus Of Attention During Landing, Andrew Nordin, Janet Dufek

Interdisciplinary Research Scholarship Day

Attentional focus (AF) has been explored among a variety of motor skills providing evidence that external AF promotes automaticity and enhanced performance [6]. External focus of attention is distinguished from internal focus such that external focus is directed toward movement effect rather than body movements [6]. Movement variability provides a means of assessing functional characteristics of the neuromotor system, where normal functioning is suggested to occur within optimal limits, while excessively high or low movement variability is indicative of system dysfunction [2,4,5]. Additionally, the ability of the motor system to vary, or broadly distribute, internal loads is thought to reduce …

Energy Balance And Its Relationship To Disordered Eating, Injury, And Menstrual Dysfunction In Soccer Athletes, Emily Lynn Miller

Theses, Dissertations and Capstones

Purpose of the Research: The purpose of this study is to examine the causes of negative energy balance in male and female collegiate soccer players who do not exhibit disordered eating. The study also looked at the prevalence of complications associated with disordered eating, injury and menstrual dysfunction to determine if these would be present in the participants in a negative or positive energy balance regardless of disordered eating status. A questionnaire will examine participants’ disordered eating risk, and a food and activity diary will examine energy balance. A third questionnaire regarding injury and menstrual history will determine their prevalence …

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, …

Duration Of The Effects Of Three Static Stretching Conditions With Or Without A Dynamic Warm-Up In College Age Adults, Spencer Blackwell, Andrew Blomberg, Jonathan Griffith

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose. The purpose of this study was to determine the stretching duration (15, 30, 60 seconds) with or without a dynamic warm-up that resulted in the longest lasting acute effects in hamstring flexibility.

Subjects. Forty subjects (17 male, 23 female) (age: 20-35 years) were selected to participate in this study using a sample of convenience from university graduate students.

Methods. This study contained 7 treatment conditions in which each subject completed in random order. Three groups consisted of a 5-minute treadmill warm-up at a self-selected velocity (SSV) followed by one of three stretching durations (15, 30, or 60 sec). …