Medicine and Health Sciences Commons^™

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 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 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 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 …