Applications 
| VIBROMYOGRAPHY (VMG) - MUSCLE ACTIVITY |
NEW! Vibromyography Solutions
Breakthrough VMG technology— capture muscle force data in real time
VMG transducers record vibration data received from microelectromechanical systems (MEMS) sensors and proprietary software.
VMG Benefits
• Ability to perform muscle balance assessments
• Improved reproducibility between muscles and individuals
• Convenient setup • Reduced setup time • Improved subject comfort • No electrodes • No skin preparation
Learn more about Vibromyography and new VMG solutions from BIOPAC...
• Click to watch a VMG video now (MP4 files are ±27-30 MB; please allow 1-2 minutes to load or download)
Advanced Features VMG - Assess absolute isometric muscle effort
VMG - Assess muscle effort
VMG - Assess Quad-Hamstring Activity after ACL Tear
VMG - Length-Tension Curves
Application Details
VMG provides extremely reproducible results. The single sensor solution and the lack of skin preparation improve the reliability and reproducibility of muscle effort recordings between muscles and across subjects. One major benefit of being able to compare results between muscles and between subjects is the ability to perform muscle balance assessments.
VMG systems use sensitive MEMS accelerometers, about the size of a quarter, and advanced signal analysis algorithms to monitor muscle vibration. The technique allows researchers to study muscle performance and strength balance.
Accelerometers are secured over the muscle belly* and record the small vibrations that occur when the muscle is activated. AcqKnowledge software uses wavelet packet analysis to extract the vibrational components that correlate with the effort generated by the muscle being studied. AcqKnowledge includes automated VMG analysis filters to simplify the analysis process.
Complete systems for muscle monitoring using Vibromyography include an MP data acquisition and analysis system with VMG analysis filters and TSD250 VMG transducers. Available as 2- or 4-channel VMG Systems—add transducers to extend up to 16 channels.
Complete Systems
Transducer & Software Packs Use if you already have a compatible BIOPAC data acquisition system
* Transducer can be secured with a variety of attachment methods (not included), such as double-sided adhesive tape, Ace® bandages and Nylatex® wraps (2.5” or 4” width suggested). Do not use excessive pressure in securing the transducers—snug enough not to move is adequate.
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