The ability to noninvasively assess voluntary muscle effort has wide application in physiologic studies, sports and rehabilitation medicine, as well as movement science. Traditionally, surface electromyography (sEMG) has been used for such assessments, but sEMG has several significant limitations arising from the fact that an estimate of muscle mechanical effort is being obtained from an electrical potential measurement made at the skin surface. As a result, it can be difficult to compare recordings from different muscles on the same person, on the same muscle over a period of days or weeks, or between the same muscle on different individuals. In addition, muscle fatigue studies are difficult as EMG activity tends to increase with increasing fiber recruitment, even though muscle effort is decreasing.
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This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.To overcome the limitations associated with using sEMG recordings to evaluate muscle effort, an increasing number of investigators have come to rely upon vibromyography (VMG), or the recording of muscle fiber vibrations, to estimate muscle effort levels2. The development of microelectromechanical (MEMS) accelerometers has contributed greatly to this transition as extremely sensitive, very low noise sensors are now available at reasonable cost. VMG can be used to evaluate muscle changes over time in a given individual or to compare between two populations the muscle effort required to complete a specific task. VMG transducers record vibration data received from microelectromechanical systems (MEMS) sensors and proprietary software. VMG provides a convenient means for assessing rehabilitation progress following sports injuries such as ACL tears due to its ability to be utilized under conditions which reflect the multi-segment, closed-chain activities associated with functional activities.
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MP36R System
Wired | VMG – Assess muscle effort
MP36R with AcqKnowledge plus 4 channel VMG system
MP36R System
Wired | VMG – Assess muscle effort
MP36R with AcqKnowledge plus 2 channel VMG system
MP160 System
Wired | VMG – Assess muscle effort
MP160 with AcqKnowledge plus 4 channel VMG system
MP160 System
Wired | VMG – Assess muscle effort
MP160 with AcqKnowledge plus 2 channel VMG system
MP36R System
MP36R System
MP160 System
MP160 System
Add fNIRS Lessons to a C Series Imager Record NIRS measurements from the forehead and the forearm at two wavelengths, 730 nm for deoxy-Hb and 850 nm for oxy-Hb. Students embark on real-world NIRS research using a student-friendly approach in these four guided lessons covering nine experiments. COBI Modern makes NIRS experimentation easy for students […]
View AllResearchers utilize electrodermal activity (EDA) data in a wide array of protocols. These recent studies join thousands of BIOPAC citations for EDA and represent just a few of BIOPAC’s hardware options for wired, wireless, logged, or MRI protocols with reusable or disposable EDA accessories and AcqKnowledge software solutions for Automated EDA Analysis Routines and EDA Measurement Tools. Caffeine Delivery […]
BIOPAC’s comprehensive EDA Guide provides an introduction to Electrodermal Activity (EDA or GSR) and details topics including: EDA Complex: SCL, SCR, tonic, phasic, specific SCR, non-specific SCR Participant Prep & Electrode Placement Data Recording tips Automated EDA Analysis Routines Digital input to Stim Events Stim-Response Analysis Derive Phasic EDA from Tonic Event-related EDA Analysis Locate […]
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