Medicine and Health Sciences Commons^™

An Electromyographic And Video Motion Analysis Study Of The Drawback And Hold Phases Of Compound Bow Versus A Traditional Bow In Experienced Archers, Jason Brodina

Physical Therapy Scholarly Projects

Background/Purpose: Archery is quickly becoming an increasingly popular sport, with limited research in the training and rehabilitation of archers. The purpose of this study is to identify the major muscles and timing of recruitment during the drawback and hold of a bow, and to determine the presence of differences in this recruitment between a compound and traditional bow.

Subjects/Methods: Seven males between the ages of 36 to 51 years of age completed 6 drawbacks each with a compound bow and a traditional bow. Surface electrodes on the subjects and reflective markers on the bow were used to analyze electromyographic activity …

An Electromyographic And Video Motion Analysis Study Of Sprinters At Varying Speeds And Inclines, Christine Ann Rygh

Physical Therapy Scholarly Projects

Athletes desire to succeed in their respective sport. Several training programs claim to enhance athletic performance by loading specific muscles and joints needed for increased speed, power, and strength in a sport specific manner. One such training regimen is the Frappier Acceleration® program, in which the core element involves sprinting on a treadmill at varying speeds and inclines. The purpose of this study is to describe muscle activity and joint motion while running on a treadmill at different speeds and inclines.

Eleven males between the ages of eighteen and twenty-two years of age ran on a treadmill at five different …

An Electromyographic And Video Motion Analysis Study Of The Drawback And Hold Phases Of A Compound Bow Versus A Traditional Bow In Experienced Archers, Andrea L. Vagle

Physical Therapy Scholarly Projects

Background/Purpose: Archery is quickly becoming an increasingly popular sport, with limited research in the training and rehabilitation of archers. The purpose of this study is to identify the major muscles and timing of recruitment during the drawback and hold of a bow, and to determine the presence of differences in this recruitment between a compound and traditional bow.

Subjects/Methods: Seven males between the ages of 36 to 51 years of age completed 6 drawbacks each with a compound bow and a traditional bow. Surface electrodes on the subjects and reflective markers on the bow were used to analyze electromyographic activity …

An Electromyographic And Video Motion Analysis Study Of Sprinters At Varying Speeds And Inclines, Marc Sondreal

Physical Therapy Scholarly Projects

Athletes desire to succeed in their respective sport. Several training programs claim to enhance athletic performance by loading specific muscles and joints needed for increased speed, power, and strength in a sport specific manner. One such training regimen is the Frappier Acceleration® program, in which the core element involves sprinting on a treadmill at varying speeds and inclines. The purpose of this study is to describe muscle activity and joint motion while running on a treadmill at different speeds and inclines.

Eleven males between the ages of eighteen and twenty-two years of age ran on a treadmill at five different …

An Electromyographic And Video Motion Analysis Study Of Sprinters At Varying Speeds And Inclines, Jeremy Zimney

Physical Therapy Scholarly Projects

Athletes desire to succeed in their respective sport. Several training programs claim to enhance athletic performance by loading specific muscles and joints needed for increased speed, power, and strength in a sport specific manner. One such training regimen is the Frappier Acceleration® program, in which the core element involves sprinting on a treadmill at varying speeds and inclines. The purpose of this study is to describe muscle activity and joint motion while running on a treadmill at different speeds and inclines.

Eleven males between the ages of eighteen and twenty-two years of age ran on a treadmill at five different …

An Electromyographic Study Of Lower Trapezius Muscle Activity During Exercise In Traditional And Modified Positions, Erika Engelstad

Physical Therapy Scholarly Projects

Shoulder rehabilitation commonly overlooks the influence of scapular muscles in providing the stability necessary for the shoulder to function properly. When considering muscles acting on the scapulothoracic articulation, literature suggests that the lower trapezius is a key stabilizer of this articulation. Traditionally, the lower trapezius is exercised while the patient is in a prone position with the humerus abducted 1450 while performing forward elevation. Unfortunately, repeated overhead activity has been proven to increase the incidence of shoulder impingement. In an effort to avoid exercising the lower trapezius in a position that would compromise the shoulder complex, a modified position of …

An Electromyographic Study Of Lower Trapezius Muscle Activity During Exercise In Traditional And Modified Positions, Rebecca Lee. Johnson

Physical Therapy Scholarly Projects

Shoulder rehabilitation commonly overlooks the influence of scapular muscles in providing the stability necessary for the shoulder to function properly. When considering muscles acting on the scapulothoracic articulation, literature suggests that the lower trapezius is a key stabilizer of this articulation. Traditionally, the lower trapezius is exercised while the patient is in a prone position with the humerus abducted 1450 while performing forward elevation. Unfortunately, repeated overhead activity has been proven to increase the incidence of shoulder impingement. In an effort to avoid exercising the lower trapezius in a position that would compromise the shoulder complex, a modified position of …

An Electromyographic Study Of Associated Musculature While Computer Keyboarding At Different Positions, David E. Nelson

Physical Therapy Scholarly Projects

Purpose: The purpose of this study is to monitor the level of muscle activity in upper trapezius and forearm musculature of subjects while typing at different keyboarding positions through the use of surface electromyography (EMG).

Methods: Thirteen female and fourteen males took part in this study ranging from 22 to 43 years of age. Subjects were asked to type at four different keyboarding positions (90 degree, 110 degree, Powerboard 1, Powerboard 2). A device called a Powerboard was used for two of the positions tested. Repeated-measures Analysis of Varience statistics were calculated with significance established at p< .05.

Conclusion: The Powerboard …

Comparison Of The Emg Activity Of The Supraspinatus And Infraspinatus Muscles During Various Closed Chain Exercises, I-Chen Lin

Rehabilitation Sciences Theses & Dissertations

Advantages of closed chain exercises used in the lower extremity have been well documented. However, the effects of closed chain exercises on the upper extremities have not been studied very much. Thus, the purpose of this research is to analyze the EMG activity of the supraspinatus and infraspinatus muscles and compare the relative amounts of activities by performing different isotonic closed chain exercises and an open chain exercise in normal subjects. The supraspinatus and infraspinatus muscles in 1 o healthy subjects were studied with fine wire, intramuscular, electromyographic electrodes while performing 5 closed chain exercises and a D2. open chain …

Electromyographic And Kinematic Analysis Of Hockey Skating, Michelle M. Fox

Physical Therapy Scholarly Projects

A limited amount of research has been done on the hockey treadmill and on the response of hockey players to individualized exercise programs.

PURPOSE: To evaluate muscle activity and joint motion of the trunk and knee of hockey players skating on a hockey treadmill.

METHODS: Seven male subjects, ages 18 to 25 years, were tested skating at 8 Mph on 0 percent and 30 percent grades on the treadmill. Electromyographical (EMG) data was collected from the following muscles: Rectus femoris, biceps femoris, adductor longus, gluteus maximus, rectus abdominus, and erector spinae. Motion analysis equipment was used simultaneously.

RESULTS: There was …

Electromyographic And Kinematic Analysis Of Hockey Skating, Kari Jo Guttormson

Physical Therapy Scholarly Projects

A limited amount of research has been done on the hockey treadmill and on the response of hockey players to individualized exercise programs.

PURPOSE: To evaluate muscle activity and joint motion of the trunk and knee of hockey players skating on a hockey treadmill.

METHODS: Seven male subjects, ages 18 to 25 years, were tested skating at 8 Mph on 0 percent and 30 percent grades on the treadmill. Electromyographical (EMG) data was collected from the following muscles: Rectus femoris, biceps femoris, adductor longus, gluteus maximus, rectus abdominus, and erector spinae. Motion analysis equipment was used simultaneously.

RESULTS: There was …

An Electromyographic Study Of The Shoulder Musculature During Codman's Exercises, Myndi L. Frey

Physical Therapy Scholarly Projects

Codman's exercises are commonly used in physical therapy as a supposed passive shoulder activity to help increase range of motion without causing detrimental damage to the injured tissue or surgical graft. These mild shoulder exercises are often the first exercises used post- operatively. Some clinicians often add a weight to the hand or wrist with the assumption that the distraction will decrease the impingement between the acromion and the shoulder musculature while performing these exercises. The purpose of this study is to determine the level of muscle activity within the shoulder musculature during Codman's exercises with and without the addition …

An Electromyographic Study Of The Forearm And Upper Trapezius Musculature While Typing At Different Keyboard Heights, Karianne M. Sekiya

Physical Therapy Scholarly Projects

Purpose: Ergonomics involves adapting the job and work environment to fit the worker and maximize safety and efficiency in the workplace. To mimimize the stresses on the musculoskeletal system, ergonomic guidelines have been established for visual display terminal workstations. The 90 degree angle position of the elbow is considered an industry standard, however available literature has not adequately established that this angle represents the optimal elbow position. The purpose of this study is to add to the current knowledge of ergonomics and reduce the risk of upper extremity cumulative trauma disorders in the workplace by determining the optimal elbow position …

An Electromyographic And Video Motion Analysis Study Of Elite Sprinters At Varying Speeds And Inclines, Erica Fretland

Physical Therapy Scholarly Projects

Background and Purpose: The purpose of this study is twofold 1) to describe muscle activity and joint motion while running on a treadmill at different speeds and inclines and 2) to examine whether or not running on a treadmill at high speeds and on an inline causes particular muscles to work harder or the sprinter to change their running technique to accommodate the increased workload.

Subjects and Methods: EMG and motion analysis data was collected from six subjects while they were running on a treadmill, first at twenty miles per hour at zero percent grade and then at thirteen miles …

An Electromyographic Study Of Back And Lower Extremity Muscle Activity During A Traditional Squat And The Plyo Press Leg Press, Heidi C. Ivesdal

Physical Therapy Scholarly Projects

Strength training is a primary factor in athletics and rehabilitation. Lower extremity strength training has traditionally consisted of free weights, biomechanically designed weight machines, or plyometrics. The Plyo Press is a new machine that is currently being utilized in the Frappier Acceleration Program for athletes. It is specifically designed for lower extremity strength training in combination with plyometrics. The principle behind its design is to build strength in the most effective way to enhance speed and dynamic activity without the stress to the low back or legs that is present with the use of free weights.

Because the Plyo Press …

An Electromyographic Study Of Trunk Muscle Activity During Exercise On The Fitness Plus Low Back Unit, Joel Anderson

Physical Therapy Scholarly Projects

Purpose: Fitness Plus, Inc. has developed a series of exercise machines for strengthening of the trunk musculature. Their Low Back Unit is claimed to target the rectus abdominus (RA), gluteus maximus (GM), biceps femoris (BF), and erector spinae (ES) muscles, but there is no research to solidify these claims. The purpose of this study was to describe the electromyographic (EMG) activity during the use of the Fitness Plus, Inc. Low Back Unit.

Methods: Fifteen healthy, males (ages 20-30) volunteered to participate in this study. Surface EMG was used to assess the muscle activity in four trunk and hip muscles. The …

An Electromyographic Study Of Back And Lower Extremity Muscle Activity During Plyopress Exercises, A Squat Lift, And A Vertical Jump, Melissa K. James

Physical Therapy Scholarly Projects

The ongoing research in the evolution of athlete training continues to reveal new principles and training designs which strive to heighten athletic performance and maximize athletic ability. One example of the application of such research is the Plyo Press machine, a patented device used in the Frappier Acceleration Program for athletes. This device was specifically designed to combine strength training with plyometrics to enhance speed and dynamic muscle activity without the excessive low back stress of traditional training methods.

As the Plyo Press has been recently designed and incorporated into training programs, no research has yet been conducted on the …

A Review Of The Utilization Of Emg Biofeedback, Jeanine Lee Forsgren

Physical Therapy Scholarly Projects

Electromyographic (EMG) biofeedback is gaining popularity as a treatment modality in physical therapy. It is used in the areas of neurological and orthopedic rehabilitation as well as injury prevention and performance improvement. The use of this modality can aid in the rehabilitation process by identifying weak muscles which need to be strengthened. Physical therapy also utilizes EMG biofeedback to identify and change movement patterns which may contribute to injury through the overuse or incorrect use of various muscles. EMG biofeedback is used to assist the patient in learning how to control muscular movement to correct the problems which are identified. …

Electromyographic Biofeedback Training For Patients With Patellofemoral Pain Syndrome: A Literature Review, Kayla K. Johnson

Physical Therapy Scholarly Projects

The purpose of this literature review is to investigate the clinical effectiveness of electromyographic biofeedback training of the vastus medialis oblique and the vastus lateralis for the treatment of patellofemoral pain syndrome, and to evaluate the symptoms and etiology of patellofemoral pain syndrome. The literature review will also identify the advantages of closed chain knee exercise in comparison to open chan knee exercise specifically in relation to the patellofemoral joint. A treatment hierarchy of closed chain knee exercise used in combination with electromyographic biofeedback is presented within the research proposal. The research proposal compares open chain biofeedback assisted exercise to …