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Full-Text Articles in Rehabilitation and Therapy

Trunk-Pelvis Coordination During Turning: A Cross Sectional Study Of Young Adults With And Without A History Of Low Back Pain, Jo Armour Smith, Kornelia Kulig May 2016

Trunk-Pelvis Coordination During Turning: A Cross Sectional Study Of Young Adults With And Without A History Of Low Back Pain, Jo Armour Smith, Kornelia Kulig

Physical Therapy Faculty Articles and Research

Background

During steady-state locomotion, symptomatic individuals with low back pain demonstrate reduced ability to modulate coordination between the trunk and the pelvis in the axial plane. It is unclear if this is also true during functional locomotor perturbations such as changing direction, or if this change in coordination adaptability persists between symptomatic episodes. The purpose of this study was to compare trunk-pelvis coordination during walking turns in healthy individuals and asymptomatic individuals with a history of low back pain.

Methods

Participants performed multiple ipsilateral turns. Axial plane inter-segmental coordination and stride-to-stride coordination variability were quantified using the vector coding technique. …


Mobility Of Individuals With Multiple Sclerosis And The Influence Of Physical Therapy, Brenda L. Davies May 2016

Mobility Of Individuals With Multiple Sclerosis And The Influence Of Physical Therapy, Brenda L. Davies

Theses & Dissertations

One main purpose was to explore the compensatory gait strategies of individuals with multiple sclerosis (MS). To address this purpose, we quantified the mechanical work generated by the lower extremity joints during walking. The outcomes from this investi­gation suggested that individuals with MS redistribute positive mechanical work during walking to the hip in order to compensate for a reduced ability of the ankle to generate positive mechanical work. Additionally, we also explored the motor control of the ankle as a potential contributing factor to the mobility limitations of individuals with MS. The outcomes from this investigation indicated that individuals with …


Measurement Of Daily Energy Expenditure In Individuals With Chronic Heart Failure, Yanlong Li May 2016

Measurement Of Daily Energy Expenditure In Individuals With Chronic Heart Failure, Yanlong Li

Theses & Dissertations

Being able to accurately monitor and quantify the amount of physical activity an individual with chronic heart failure (CHF) performs can be of assistance in developing appropriate interventions. This thesis attempted to evaluate the validity of the RT3 accelerometer (RT3) and 7-day Physical Activity Recall Questionnaire (7 day PAR) in measuring the daily activity levels of community dwelling individuals with CHF. Fifty-four individuals with CHF participated in a 7 day session to estimate their daily physical activity by using the RT3 accelerometer and 7-day PAR questionnaire. In addition, 15 of the 54 individuals participated in a second study in with …


Ua61/16 White Coat Ceremony Program, Wku Physical Therapy May 2016

Ua61/16 White Coat Ceremony Program, Wku Physical Therapy

WKU Administration Documents

White coat ceremony program for WKU Physical Therapy class of 2016.


The Effects Of Locomotion-Induced Shock Loading On Tibiofemoral Bone Stress Response, Alexa Standerfer, Suzenna Ngo, Karen Daun May 2016

The Effects Of Locomotion-Induced Shock Loading On Tibiofemoral Bone Stress Response, Alexa Standerfer, Suzenna Ngo, Karen Daun

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Hypothesis: Knee osteoarthritis (Coats, Zioupos, & Aspden) is a degenerative joint disease that negatively impacts the quality of life. About 9.3 million people in the U.S. population are affected. It has been suggested via magnetic resonance imaging (MRI) studies that bone marrow edema (i.e., indicative of bone stress response) and joint structure changes may be the main contributing factors of pain in OA. Frontal plane lower extremity (LE) alignment has been a topic of much interest regarding development of OA in the knee joint. It is hypothesized that varus alignment increases forces through the medial compartment of the knee, thereby …


Alcohol Consumption As A Risk Factor For Sarcopenia - A Meta-Analysis, M. Steffl, R. W. Bohannon, M. Petr, E. Kohlikova, I. Holmerova May 2016

Alcohol Consumption As A Risk Factor For Sarcopenia - A Meta-Analysis, M. Steffl, R. W. Bohannon, M. Petr, E. Kohlikova, I. Holmerova

Physical Therapy

No abstract provided.


A Prediction Model For Acute Core And Lower Extremity Injuries In Division 1 Collegiate Football Players, Alexandra Aline Mcdonald May 2016

A Prediction Model For Acute Core And Lower Extremity Injuries In Division 1 Collegiate Football Players, Alexandra Aline Mcdonald

Graduate Theses and Dissertations

Context: Various intrinsic factors such as high exposure, poor endurance of core muscles, previous injury, strength deficits, suboptimal neurocognitive function, and orthopedic abnormalities have been found as predictors for sprains and strains among collegiate football players. Objective: Assess the applicability of pre-participation assessments as predictors of core or lower extremity injury. Design: Cohort Study. Setting: National Collegiate Athletic Association Division I football program. Patients or Other Participants: Athletes who underwent mandatory pre-participation examinations before preseason football training over two consecutive seasons (n=225). Main Outcome Measure(s): Associations between preseason protocols and injury incidence for core and lower extremity injuries were established …


Rapid Step Test Based On Leg Length As A Novel Dynamic Standing Balance Test In The Geriatric Population: A Pilot Study, Harold L. Merriman, Kurt Jackson, E. Conkel, D Mcintyre, Q Rizvi, P Sharkey May 2016

Rapid Step Test Based On Leg Length As A Novel Dynamic Standing Balance Test In The Geriatric Population: A Pilot Study, Harold L. Merriman, Kurt Jackson, E. Conkel, D Mcintyre, Q Rizvi, P Sharkey

University of Dayton Doctor of Physical Therapy Annual Research Symposium

Each year, 1 out of 3 adults over age 65 experience a fall resulting in a traumatic injury or even mortality. Falls are the leading cause of death in the elderly population and cause the greatest number of hospital admissions from trauma. The Balance Evaluation Systems Test (BEST), Berg Balance Scale, and Tinetti are frequently used tests to determine fall risk. However, they can be complicated, time consuming, and exhibit a ceiling effect. This study employed the Rapid Step Test (RST) to examine the use and practicality of a new, portable and easy to administer test that may differentiate between …


Scapular Performance In Women With Breast Cancer Compared To Healthy Controls, Carlie S. Henzler, Mary I. Fisher, Lucinda A. Pfalzer, Ellen Levy, Shana E. Harrington, Naomi L. Gerber, Nicole L. Stout May 2016

Scapular Performance In Women With Breast Cancer Compared To Healthy Controls, Carlie S. Henzler, Mary I. Fisher, Lucinda A. Pfalzer, Ellen Levy, Shana E. Harrington, Naomi L. Gerber, Nicole L. Stout

University of Dayton Doctor of Physical Therapy Annual Research Symposium

The Scapular Flip Test is designed to recognize abnormal scapular position defined by winging/tipping of the scapula on resisted external rotation. Originally created to detect scapular dysfunction with spinal accessory nerve damage, the Scapular Flip Test may be a simple screening tool for any scapular dysfunction that results from breast cancer surgery and treatment to the shoulder and axillary region.


The Use Of The Four Square Step Test And The Y Balance Test To Assess Balance In Typical Children Ages 6-10 Years, Sarah Collier, Kendra Lucas, Leah Meyer, Amanda Watamaniuk, Kelsey Waterman, Ashely Zappia May 2016

The Use Of The Four Square Step Test And The Y Balance Test To Assess Balance In Typical Children Ages 6-10 Years, Sarah Collier, Kendra Lucas, Leah Meyer, Amanda Watamaniuk, Kelsey Waterman, Ashely Zappia

University of Dayton Doctor of Physical Therapy Annual Research Symposium

The Bruininks-Oseretsky Test of Motor Proficiency, 2nd edition (BOT-2) is a widely used standardized tool to assess gross motor function, including balance, in children ages 4-21.The Four Square Step Test (FSST) was developed as a reliable assessment tool to assess fall risk in the geriatric population, however there is limited research on its use in the pediatric population. The Y-Balance Test (YBT) was developed to detect functional deficits in the athletic population, it is unknown if this is a reliable test in the pediatric population.


Inter-Rater Reliability Of Weight Bearing Knee Joint Space Measurements Obtained With Diagnostic Ultrasound, Colton Adkins, Patrick Hart, Jacob Hinton, Alicia Nelson May 2016

Inter-Rater Reliability Of Weight Bearing Knee Joint Space Measurements Obtained With Diagnostic Ultrasound, Colton Adkins, Patrick Hart, Jacob Hinton, Alicia Nelson

University of Dayton Doctor of Physical Therapy Annual Research Symposium

Historically, joint space has been determined via x-ray; ultrasound has been suggested as a better choice since it involves no radiation. Documenting joint space is clinically important to determine the degree of degenerative progression associated with osteoarthritis and aging. Reliability of the use diagnostic ultrasound to measure weight-bearing knee joint space has not been investigated.


The Utility Of Functional Movement Assessment And Select Clinical Measures In Predicting Injury In Nba Players, Collin Brown, Elizabeth Depalma, Zach Gerber, Matthew Linstedt, Kevin Royce, James Swanson May 2016

The Utility Of Functional Movement Assessment And Select Clinical Measures In Predicting Injury In Nba Players, Collin Brown, Elizabeth Depalma, Zach Gerber, Matthew Linstedt, Kevin Royce, James Swanson

University of Dayton Doctor of Physical Therapy Annual Research Symposium

Professional basketball has evolved into a contact sport that imparts an incredible physical demand on an athlete’s body. Despite medical advancements and the progression of coaching and training techniques, rate of injury has not declined. Tools such as the Functional Movement Screen (FMS) and Y-Balance Test (YBT) have been used to assist in predicting injury, but recent literature has stated that they are better for identifying functional deficits than potential for injury. Certain clinical tests and measures may be helpful in determining which players may be at risk.


The Effect Of Dry Needling To The Multifidus Muscle On Resting And Contracted Thickness Of Transversus Abdominis In Subjects With Low Back Pain, Shane Collins, Abbay Dow, Daniel Rincon May 2016

The Effect Of Dry Needling To The Multifidus Muscle On Resting And Contracted Thickness Of Transversus Abdominis In Subjects With Low Back Pain, Shane Collins, Abbay Dow, Daniel Rincon

UNLV Theses, Dissertations, Professional Papers, and Capstones

Study Design: Randomized, double-blinded, controlled clinical trial. Objective: To measure the effects of dry needling to the lumbar multifidus (MF) muscle for any change in resting and contracted thickness of the transversus abdominis (TrA) muscle as well as symptoms and disability in individuals with low back pain (LBP). Background: Recent studies have demonstrated that individuals with LBP have diminished co-activation of the lumbar MF and TrA muscles, which when working appropriately in healthy individuals, contributes to spinal stability and function. A significant change in the resting and contracted thickness of TrA has been found with dry needling to the lumbar …


Preventing Non-Contact Acl Injuries In Female Athletes: What Can We Learn From The Dancers?, Sarah Crow, Thomas Crowther, Trenton Saupan May 2016

Preventing Non-Contact Acl Injuries In Female Athletes: What Can We Learn From The Dancers?, Sarah Crow, Thomas Crowther, Trenton Saupan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Study design: Cross-sectional case control.
 Objectives: The purpose of this study was to investigate the effects of dance experience and movement instruction on lower extremity kinematics and muscle activation during landing tasks Background/Aim: Current research demonstrates that dancers exhibit a much lower incidence of ACL injuries when compared to athletes of other sports despite the fact that dancers jump and land frequently in their training and performance. The mechanism that underlies this disparity is unclear.
 Methods: We analyzed lower extremity biomechanics during landing in 27 subjects (age 18-25 years, 12 dancers and 15 non-dancers). In the non-instructed (NI) conditions, participants …


The Effects Of Patellofemoral Taping On Patellofemoral Joint Alignment And Contact Area, Ryan Epstein, Ron Garcia, Nicole Riley May 2016

The Effects Of Patellofemoral Taping On Patellofemoral Joint Alignment And Contact Area, Ryan Epstein, Ron Garcia, Nicole Riley

UNLV Theses, Dissertations, Professional Papers, and Capstones

Purpose/Hypothesis: It is widely accepted that patellofemoral pain (PFP) is the result of excessive stress between the retro-patellar surface and the femoral trochlea. Elevated patellofemoral joint (PFJ) stress may be associated with a reduction in PFJ contact area resulting from patellar malalignment (e.g., lateral displacement, lateral tilt, or patellar alta and/or quadriceps imbalance). McConnell and Kinesio taping techniques are commonly used to address PFP and improve PFJ alignment. It has been theorized that PFJ taping can alter the PFJ alignment which may increase the patella’s contact area within the femoral trochlea, thereby resulting in a reduction in PFP. To date, …


Influences Of Body Composition, Multimorbidity And Polypharmacy On Physical Mobility Of Older Adults, Chieh Chen, Linna Sestini, Rachel Wilde May 2016

Influences Of Body Composition, Multimorbidity And Polypharmacy On Physical Mobility Of Older Adults, Chieh Chen, Linna Sestini, Rachel Wilde

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: The prevalence of falls, and the resulting injuries and complications reflect a key concern in the older adult population. An increased risk of falls is highly correlated with decreases in physical mobility and related functions. The Timed Up-and-Go test (TUG) has an established reliability and validity in assessing physical function and the risk of falling in the older adult population. With age, a person typically has an increased number of health morbidities, which may be reflected in changing body composition and the number of medications associated with diseases. However, the influence of these factors on physical mobility …


Thrust Joint Manipulation Utilization By Us Physical Therapists, Sean Reilly, Rebecca Slaughter, Erwin Ventura May 2016

Thrust Joint Manipulation Utilization By Us Physical Therapists, Sean Reilly, Rebecca Slaughter, Erwin Ventura

UNLV Theses, Dissertations, Professional Papers, and Capstones

Study Design: Online survey study. Objective: To determine physical therapists’ utilization of thrust joint manipulation (TJM) and their comfort level in using TJM between the cervical, thoracic, and lumbar regions of the spine. We hypothesized that physical therapists who use TJM would report regular use and comfort providing it to the thoracic and lumbar spines, but not so much for the cervical spine. Background: Recent surveys of first professional physical therapy degree programs have found that TJM to the cervical spine is not taught to the same degree as to the thoracic and lumbar spines. Methods: We developed a survey …


The Effect Of Balance Training On Disruptive Behaviors In Children With Autism Spectrum Disorders, Claire A. Scates May 2016

The Effect Of Balance Training On Disruptive Behaviors In Children With Autism Spectrum Disorders, Claire A. Scates

Honors Theses

Objective

The purpose of this study is to evaluate the effect of balance training on disruptive behaviors in children with Autism Spectrum Disorders (ASD).

Methods

Fourteen parents of children with ASD participated in this study. Data was collected using the Aberrant Behavior Checklist (ABC) distributed to various therapy centers around the Hattiesburg and Jackson areas. A secondary survey was included that collected demographic data and basic data on what therapies the children have been involved in. The ABC provided a measure of the incidence of disruptive behaviors exhibited by the children with ASD as evaluated by their parents. Three of …


Effects Of Simple Postural Instructions On Running Form Modification In Recreational Runners – Preliminary Findings, Elizabeth Billington, Scott Devries, Kenshin Scoggin May 2016

Effects Of Simple Postural Instructions On Running Form Modification In Recreational Runners – Preliminary Findings, Elizabeth Billington, Scott Devries, Kenshin Scoggin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and purpose: Running is one of the most popular exercises but it is also an activity with a high incidence of injury. Running form modification involving a forward lean of the trunk and forefoot strike pattern has been shown to be effective in attenuating the impact forces of the lower extremity. However, it is currently unknown how these changes can be most effectively instructed and learned by the runners. Previous studies have shown that practicing a motor task with an external focus can facilitate learning and retention when compared to the more common internal focus instructions. The purpose of …


Use Of A Mobile Application To Increase Patient Compliance To A Prescribed Home Exercise Program And Improve Outcomes, Ellie Cobb, Jed Hurst, Ethan Konshuk May 2016

Use Of A Mobile Application To Increase Patient Compliance To A Prescribed Home Exercise Program And Improve Outcomes, Ellie Cobb, Jed Hurst, Ethan Konshuk

UNLV Theses, Dissertations, Professional Papers, and Capstones

Methods: The creator of the app offered free use of their app to a physical therapy clinic. As the app is only compatible with Apple products, the clinic used the app with any patient that had an iPhone. Retrospective review was conducted to determine if differences in patient outcomes were observed. Patients who had access to an iPad or iPhone were considered part of the “app group” and used the mobile app to reference and report PT HEP compliance. Patients without access to an iPad or iPhone were considered part of the “non-app group” and received traditional PT HEP prescription …


Balance Confidence And Fear Of Falling Avoidance Behavior Are Most Predictive Of Falling In Older Adults: A Prospective Analysis, Sarrie Oscar, Jessica Sasaoka, Kyle Vaughn May 2016

Balance Confidence And Fear Of Falling Avoidance Behavior Are Most Predictive Of Falling In Older Adults: A Prospective Analysis, Sarrie Oscar, Jessica Sasaoka, Kyle Vaughn

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background: Evidence suggests that there are several fall predictors in the elderly population, including previous fall history and balance impairment. To date, however, the role of psychological factors has not yet been thoroughly vetted in conjunction with physical factors as predictors of future falls. Objective: The purpose of this study was to determine which measures, physical and psychological, are most predictive of falling in older adults. Design: This was a prospective cohort study. Methods: Sixty-four participants (mean age=72.2 years, SD=7.2; 40 women, 24 men) with and without pathology (25 healthy, 17 with Parkinson disease, 11 with cerebrovascular accident, 6 with …


Heel-Raised Foot Posture And Weightlifting Shoes Do Not Affect Trunk And Lowerextremity Biomechanics During A Barbell Back Squat, Javier Ibarra, Derek Oldroyd, Ryan Zane May 2016

Heel-Raised Foot Posture And Weightlifting Shoes Do Not Affect Trunk And Lowerextremity Biomechanics During A Barbell Back Squat, Javier Ibarra, Derek Oldroyd, Ryan Zane

UNLV Theses, Dissertations, Professional Papers, and Capstones

Background and Purpose: It is claimed that wearing weightlifting shoes with a raised-heel can improve posture and leg muscle activation, and reduce the risk of back injuries during a barbell back squat. However, these proclaimed biomechanical effects have not been thoroughly investigated. The purpose of this study was to compare the thoracic, lumbar, and lower extremity biomechanics during barbell back squat in 3 foot posture conditions. Subjects: 14 healthy recreational weightlifters (7 male and 7 female) between the ages of 18-50 participated in the study. A minimum of 2 years weightlifting experience and regular training with the barbell back squat …


Assessing Student Self-Perception Of Confidence In The Evaluation And Treatment Of The Neurologically Involved Across The Lifespan, Kristen Barta, Megan Flores Apr 2016

Assessing Student Self-Perception Of Confidence In The Evaluation And Treatment Of The Neurologically Involved Across The Lifespan, Kristen Barta, Megan Flores

Physical Therapy Collection

PURPOSE AND HYPOTHESIS: The purpose of this study was to investigate student confidence in the evaluation and treatment of a person with a neurological condition through the use of Patient Oriented Integrated Neurological Treatment (POINT) labs. We hypothesized that POINT labs would significantly improve students' confidence in evaluation and treatment this population.

METHODS AND MATERIALS: As part of their curriculum, physical therapy students at the University of St. Augustine are required to participate in POINT labs during their Neuromuscular III and Pediatric PT classes. The POINT labs are divided into an adult and pediatric section, in which the students evaluate …


Validation Of A Pressure Pain Threshold Scale In Patients Diagnosed With Myofascial Pain Syndrome And Fibromyalgia, Scott William Cheatham Apr 2016

Validation Of A Pressure Pain Threshold Scale In Patients Diagnosed With Myofascial Pain Syndrome And Fibromyalgia, Scott William Cheatham

Department of Physical Therapy Student Theses, Dissertations and Capstones

Background: Palpation is an examination technique used to diagnose and treat myofascial pain syndrome (MPS) and fibromyalgia (FM). Currently, there is no validated technique for classifying the results. A valid and reliable pressure pain threshold scale (PPTS) may provide a means for clinicians to grade, document, and report findings. The purpose of this dissertation was to validate a PPTS in patients diagnosed with MPS and FM. Design and Methods: An observational study. Participants who met the inclusion criteria were placed into three equal groups: MPS, FM, and control. All participants underwent one, two-part testing sessions using the American College of …


Spine Biomechanics Associated With The Shortened, Modern One-Plane Golf Swing, R. Barry Dale, Jason Brumitt Apr 2016

Spine Biomechanics Associated With The Shortened, Modern One-Plane Golf Swing, R. Barry Dale, Jason Brumitt

Faculty Publications - College of Physical Therapy

The purpose of this study was to compare kinetic, kinematic, and performance variables associated with full and shortened modern backswings in a skilled group of modern swing (one-plane) golfers. Shortening the modern golf backswing is proposed to reduce vertebral spine stress, but supporting evidence is lacking and performance implications are unknown. Thirteen male golfers performed ten swings of each swing type using their own 7-iron club. Biomechanical-dependent variables included the X-Factor kinematic data and spine kinetics. Performance-related dependent variables included club head velocity (CHV), shot distance, and accuracy (distance from the target line). Data were analysed with repeated measures …


Effects Of Body Weight Loading On Arch Height, Anastasia Bjelopetrovich Apr 2016

Effects Of Body Weight Loading On Arch Height, Anastasia Bjelopetrovich

Honors Theses

Deformation of the medial longitudinal arch under body weight loading is often assessed using the Arch Height Index Measurement System. This system assesses change in arch height between sitting and standing, estimated to be 10 and 50% of body weight, respectively. However, body weight forces during ambulation exceed these loads, therefore limiting our understanding of arch deformation under ambulatory load ranges. Thus, the study aims were 1) to assess if sitting and standing arch height differed from that seen under 10 and 50% body weight using a force target-matching procedure, and 2) to characterize the relationship between arch deformation and …


Fall Risk Assessment Of Older Adults With Dementia Attending Goodwill Easter Seals Adult Day Services Programs, Jamie Wynk Apr 2016

Fall Risk Assessment Of Older Adults With Dementia Attending Goodwill Easter Seals Adult Day Services Programs, Jamie Wynk

Honors Theses

Background and Purpose: Elderly individuals, especially those with dementia, are at an increased risk for falls. These falls can result in extremely serious injuries. However, little is known as to what factors put an Alzheimer’s patient most at risk for falls. This study seeks to determine which known fall risk factors are experienced by adults with dementia who attend adult day services. By understanding what risk factors put an individual at an increased likelihood for falls, a specific intervention can be designed to prevent falls in this population.

Participants: To be included in this study, participants had to …


Vestibular Rehabilitation For Peripheral Vestibular Hypofunction: An Evidence-Based Clinical Practice Guideline, Courtney D. Hall, Susan J. Herdman, Susan L. Whitney, Stephen P. Cass, Richard A. Clendaniel, Terry D. Fife Apr 2016

Vestibular Rehabilitation For Peripheral Vestibular Hypofunction: An Evidence-Based Clinical Practice Guideline, Courtney D. Hall, Susan J. Herdman, Susan L. Whitney, Stephen P. Cass, Richard A. Clendaniel, Terry D. Fife

ETSU Faculty Works

Background: Uncompensated vestibular hypofunction results in postural instability, visual blurring with head movement, and subjective complaints of dizziness and/or imbalance. We sought to answer the question, “Is vestibular exercise effective at enhancing recovery of function in people with peripheral (unilateral or bilateral) vestibular hypofunction?” Methods: A systematic review of the literature was performed in 5 databases published after 1985 and 5 additional sources for relevant publications were searched. Article types included meta-analyses, systematic reviews, randomized controlled trials, cohort studies, case control series, and case series for human subjects, published in English. One hundred thirty-five articles were identified as relevant to …


Treatment For Vestibular Disorders: How Does Your Physical Therapist Treat Dizziness Related To Vestibular Problems?, Courtney D. Hall, Susan J. Herdman, Susan L. Whitney, Stephen P. Cass, Richard A. Clendaniel, Terry D. Fife Apr 2016

Treatment For Vestibular Disorders: How Does Your Physical Therapist Treat Dizziness Related To Vestibular Problems?, Courtney D. Hall, Susan J. Herdman, Susan L. Whitney, Stephen P. Cass, Richard A. Clendaniel, Terry D. Fife

ETSU Faculty Works

Dizziness is very common, but it is never normal. Dizziness can make performing daily activities, work, and walking difficult. Many people get dizzy when they turn their head, which can cause problems with walking and makes people more likely to fall. Most of the time dizziness is not from a life-threatening disease. Often dizziness is because of a disorder of the vestibular (or inner ear balance) system. People can get vestibular disorders from infections in the ear, problems with the immune system, medications that harm the inner ear, and rarely from diabetes or stroke because of a lack of blood …


The Effects Of Instrument Handle Design On Forearm Muscle Activity During Scaling By Dental Hygienists, Jessica Rae Suedbeck Apr 2016

The Effects Of Instrument Handle Design On Forearm Muscle Activity During Scaling By Dental Hygienists, Jessica Rae Suedbeck

Dental Hygiene Theses & Dissertations

Purpose: The purpose of this study was to determine the effects of 4 different commercially available instrument handle designs (A. 16 grams and 12.7 mm diameter; B. 23 grams and 11.1 mm diameter; C. 21 grams and 7.9 mm diameter; D. 18 grams and 6.35 mm diameter) on the muscle activity of four forearm muscles during a simulated scaling experience. Methods: A convenience sample of 27 dental hygienists used a Columbia 13/14 curet with four different instrument handles to scale artificial calculus. While scaling, each participant’s muscle activity was measured using surface electromyography (sEMG). Participants completed an end user opinion …