Expert speakers J. Richards, Ph.D (University of Central Lancashire) and J. DeFreitas, Ph.D. (Oklahoma State University) will present scientific data on applications of the Trigno™ IM (EMG and IMU) sensor and dEMG system in research and clinical applications, with a focus on their role in constructing intervention strategies vital to QMM.
Who should attend? Researchers that are interested in using research instruments to: 1) Look behind the traditional skeletal models, and 2) Look beyond the utility of sEMG signals to define new neuromuscular measurements in assessment and intervention strategies.
Research and Realities in the Era of Wearable Sensors
Presenter: Dr. Joshua C. Kline, Lead Research Engineer, Delsys Inc (USA)
The workshop will open with a brief introduction on research-grade instruments and factors a researcher should consider.
Trigno IM™ (EMG and IMU) Sensors: Looking at the data behind the skeletal models and their clinical/practical application
Presenter: Dr. Jim Richards, Professor of Biomechanics, Research Lead for the Allied Health Research unit, University of Central Lancashire, UK
The use of IMU sensors is now commonplace within kinesiology research, and clearly has significant potential to be used in clinical and sports practice environments. Much of the work to date has focussed on using biomechanical models, however there is still a significant amount of useful data to be obtained by considering gyroscope and accelerometer data, especially when combined with EMG data. This talk will consider the aspects of angular velocity and linear acceleration and how these can be used to determine the clinical effect of different interventions. This will include a demonstration of the level of agreement between angular velocity data obtained from camera based systems versus IMU sensors. In addition, how these can subsequently be used to determine quality of movement and changes in controldue to proprioceptive interventions for joint stability such as knee taping and bracing. This talk that changes in joint biomechanics, including improvements in coronal and transverse plane stability and neuromuscular control, are possible in normal subjects and subjects who suffer from knee pain and instability. However, to date this has been largely only investigated with 3D motion camera systems. This talk will demonstrate how clinically important changes in movement control, joint stability and muscle activity may also be assessed in clinic with IMU/EMG sensors.
Key Words: EMG +IMU sensors, quality of movement measurement, instability, taping, bracing, neuromuscular control.
dEMG System: Expanding the assessment of muscle morphology
Presenter: Dr. Jason M. DeFreitas, Oklahoma State University (USA)
For decades, assessment of motor unit firing behaviour and action potential morphology has been a standard part of clinical neurological exams. Depending on the symptoms, this test often consists of the insertion of a needle EMG electrode (typically 22-30 gauge) into the belly of a muscle. Despite its frequent use, research on action potential morphology has been primarily focused only on its diagnostic utility. However, recent advancements in the decomposition of surface EMG (dEMG) technology has not only allowed for motor unit action potentials to be examined non-invasively (i.e. no needles), but has broadened its potential utility. Recent findings will be presented that demonstrate the dEMG system’s ability to assess motor unit specific hypertrophy as well as aging- or disease-related atrophy without the need for biopsies. Furthermore, future research studies attempting to improve neuropathy and myopathy diagnostics will also be discussed.
Key Words: Motor Unit morphology, Needle EMG, muscle hypertrophy, Neuropathy, Quality of Movement Measurement (QMM)