VMG – Assess absolute isometric muscle effort
Vibromyography (VMG) has distinct benefits over EMG in that the recordings much more accurately reflect absolute muscle effort up to 100% maximum voluntary contraction. Correspondingly, VMG can be used to both evaluate muscle changes over time in a given individual or to compare between two populations the muscle effort required to complete a specific task. The ability to discriminate muscle effort changes depends on the precision and accuracy of the VMG under these two scenarios, that is, the intra-assay accuracy and variability and the inter-assay accuracy and variability. Here, we address the inter-assay variability of VMG recordings in healthy adult men, focusing on isometric contraction of an upper extremity muscle.
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Perfrom muscle effort assessments with Vibromyography (VMG) systems from BIOPAC.
VMG transducers record vibration data received from microelectromechanical systems (MEMS) sensors and proprietary software.
•– VMG amplitude increases monotonically with muscle effort •– Only one scaling factor required for all subjects •– Relationship is between ABSOLUTE effort and VMG
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Application Notes
- 127 - Precision Force Transducers
- 101 - Transducer Calibration and Signal Re-Scaling
- 114b - Pneumotach Transducer - TSD107B
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- 117 - Pulse Transit Time and Velocity Calculation
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- 300 - Line In Audio Adapter Compatibility
- 230 - Connections for Physiological Signals in an MRI
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- 232 - EMG: Normalize to Maximum Voluntary Contraction - BSL PRO
- 233 - Heart Rate Variability - Preparing Data for Analysis
- 234 - Virtual Reality / Immersive Environment
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- 004 - MP150 Firmware Compatibility
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- 239 - Send to AcqKnowledge from Vizard via parallel port
- 240 - Measurement Computing card setup
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- 243 - Gated Analysis for Data Recorded in an MRI - EMG example
- 245 - DTU200 Dual Channel Gating Setup and Operating Instructions
- 246 - R-R Interval Processing with the BIOPAC HRV Algorithm
- 249 - Online Averaging Latency Parameters
- 250 - Assess Muscle Effort with Vibromyography
- 251 - n-back for fNIR with AcqKnowledge
- 252 - Aerobic Capacity, Physical Fitness and VO2 Max
- 253 - BBS | Getting Started with BIOPAC Basic Scripting
- 255 - Artifact Rejection: Verification Procedure (MP150 System)
- 256 - BBS | Video Scoring with BIOPAC Basic Scripting
- 257 - Safe Use of Electrical Stimulators
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- 259 - ECG Averaging in the MRI using the ECG100C-MRI amplifier
- 260 - Using Vibromyography to obtain length-tension curves for the quadriceps muscles
- 261 - TSD250 (BPS-II) VMG transducer in the assessment of isometric absolute muscle effort
- 262 - VMG to assess quad-hamstring activity after ACL tear
- 263 - Strategies to Record Biopotential or Transducer Data in MRI or fMRI
- 264 - BBS | Scripting: Flow Control via Graph File UI
- 265 - MRI Artifact Removal from ECG Waveforms
- 266 - Tri-axial Accelerometer Measurements using BioNomadix
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- 275 - Dynamometers for Low Hand Grip Strength Measurements
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- 277 - Transcranial Current Stimulation Using STMISOLA
- 278 - Percent End Tidal CO2 Measurement using C02100C
- 279 - ECG and EDA Recording in 7-Tesla fMRI
- 280 - ETHUSB Communication - Mac OS X 10.7 or above
- 281 - ECG Timing Delay Associated with Amplifier Filter Selections
- 282 - Subject Electrical Stimulation in fMRI and MRI
- 283 - fMRI Imaging Sequencing Effects upon Physiological Measurement
- 284 - fNIR Systems – Dark Current Measurements
- 285 - Identifying Stimulation Threshold
- 286 - NIBP100D Calibration
- 287 - MP3x Drivers in Mac OS 10.13
- 288 - How to Turn Events into Graph Channels
- 290 - BBS Feedback Control
- 291 - BBS Pulse Amplitude Feedback
- 292 - Interfacing with E-Prime®
- 293 - Displaying BPM Through Seven Segment Displays
- 294 - Trans-radial Electrical Bioimpedance Velocimetry (TREV and TRUEV)
- 296 - Continuous Monitoring of a Monotonic Signal for GASSYS3
- 244 - Programmable Stimulator for E-Prime®
Knowledge Base
- Arbitrary waveform stimulation
- Grounding guidelines
- Gel for EDA (GSR)/SCR
- Recording good data
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- Extracting data segments from a file
- Text files - import and export
- Electrodermal activity measurements
- MRI - Triggering
- Volume from airflow
- Interfacing third-party amplifiers
- Railing signal (flatline)
- NIBP100A sensor height & signal output
- Buffer overflow
- Extracting heart rate from a noisy ECG signal
- AC mode
- DC mode
- Low pass filters
- High pass filters
- Band-pass and band-stop filters
- Notch filter
- Amplifier filter settings
- Calibration values
- Common mistakes/general troubleshooting
- Deep breath and SCR/EDA increase
- Reusable vs. disposable EDA/GSR electrodes
- IIR vs. FIR filters
- Deep breath and PPG signal flattening
- EEG reference - linked ears, summed ears, etc.
- Maximum number of channels for EEG
- Ground vs. reference for EEG recording
- Bipolar EEG
- VREF, reference excitation voltage
- Editing noisy data
- * CLEANING GUIDELINES *
- Calculating file sizes
- Using other software with BIOPAC hardware
- AcqKnowledge accuracy
- Interfacing third-party transducers
- Amplifier analog output signals
- ECG R-wave detector
- ECG Analysis
- Interface with visual presentation programs
- Upgrading from PCMCIA to USB
- Combining Video with AcqKnowledge
- LabView interface
- USB Drivers and Controller Communication
- EEG frequency bands
- NIBP100A and pulse plethysmography
- Outputting a signal through the STM100C
- Visual presentation system triggering the MP150/100
- MP150 UDP protocol fixed IP address
- Biopac Science Lab - System Check Troubleshooting
- Electrode Check on older MP36 and MP35
- Duplicating waveforms
- Electrical stimulation and artifact
- MP System Comparison: MP150 vs. MP100
- Amplifier conversion - 2 mm to touchproof
- Amplifier baseline offset adjustment
- Biopotential amplifier signal validation
- DA100C amplifier signal validation
- Electrode Properties - gel and adhesive
- Biopac Science Lab Line In Ports
- EDA (GSR) subject preparation
- Disc I/O error 5000
- Guidelines - EDA, EDR, GSR, SCL, and SCR
- AFT11 Series coupler guide
- Clinical chart grid setting for ECG
- CAP100C electrode connections
- PPG setup and calibration
- National Science Education Standards Correlation
- GLP Lab Assistant - Good Laboratory Practice
- MP150 Firmware Compatibility
- ECG artifact in EMG Signal
- Differences between the NICO100C and EBI100C
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- MP40 sample rates
- Nerve Chamber to MP1XX System
- Gould interface
- FIR issue - AcqKnowledge 3.9.x for Mac
- EOG vs. EMG amplifier
- MP3X Filters
- External Devices and Channel Contention
- Multiple amplifiers per subject or multiple subjects per system
- NIBP100C Calibration Values
- NIBP100A single pulse data analysis
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- Connecting the TSD116C Switch Box
- Copy and paste append markers along with data
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- How can I determine which software versions are compatible with which operating systems?
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Hardware Packages | VMG – Assess absolute isometric muscle effort
Hardware Bundles are complete solutions for the specified application. Choose your preferred platform and bundle, then click "Request Pricing" to request an estimate, add/remove items, or complete purchase. If you have questions about specific items, click through to the product web page for details and specifications, or contact your Local Sales contact.
Wired
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MP36R System plus 2-channel VMG system
Wired | VMG – Assess absolute isometric muscle effort
MP36R with AcqKnowledge plus 4-channel VMG system for vibromyography
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MP36R System plus 2-channel VMG system
Wired | VMG – Assess absolute isometric muscle effort
MP36R with AcqKnowledge plus 2-channel VMG system for vibromyography
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MP160 System + 4-channel Vibromyography (VMG) System
Wired | VMG – Assess absolute isometric muscle effort
MP160 with AcqKnowledge plus 4 channel VMG system
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MP160 System + 2-channel Vibromyography (VMG) System
Wired | VMG – Assess absolute isometric muscle effort
MP160 with AcqKnowledge plus 2 channel VMG system
MP36R System plus 2-channel VMG system
- 1 x Vibromyography Systems with MP36R
MP36R System plus 2-channel VMG system
- 1 x Vibromyography Systems with MP36R
MP160 System + 4-channel Vibromyography (VMG) System
- 1 x Vibromyography Systems with MP160
MP160 System + 2-channel Vibromyography (VMG) System
- 1 x Vibromyography Systems with MP160
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