EMG Power Spectrum Analysis

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A common tool for investigating electromyography (EMG) data is the Power Spectrum Density (PSD). Use AcqKnowledge for EMG Frequency & Power Analysis to compare responses from one part of the recording to the next and for data reduction of large EMG signals. This frequency domain technique splits the EMG signal into a fixed number of time periods and runs the Power Spectral Density transformation on each epoch.

The following measurements are exported to a spreadsheet:

  • Median Frequency
  • Mean Frequency
  • Peak Frequency
  • Mean Power
  • Total Power

Data can be recorded with resuable or disposable surface EMG electrodes or needle electrodes using wired, wireless, or MRI Smart amplifiers.

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This frequency domain technique splits the EMG signal into a fixed number of time periods and runs the Power Spectral Density transformation on each epoch. The following measures are derived from the power spectrum of the EMG signal and extracted for reporting:

  • Median Frequency (Hz) – Frequency at which 50% of the total power within the epoch is reached.
  • Mean Frequency (Hz) – Frequency at which the average power within the epoch is reached.
  • Peak Frequency (Hz) – Frequency at which the maximum power occurs during the epoch.
  • Mean Power (V2/Hz*) – Average power of the power spectrum within the epoch.
  • Total Power (V2/Hz*)- Sum of the power at all frequencies of the power spectrum within the epoch.

*Units Note: V will be replaced with the voltage units in which the EMG was recorded.

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Hardware Packages   |   EMG Power Spectrum Analysis

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

MP36R System plus hand dynamometer, leads & cloth electrodes

  • 1 x MP36R Systems
  • 1 x Cloth Base Electrodes
  • 1 x Lead set, shielded, BSL
  • 1 x Abrasive Pads 10/pk
  • 1 x Unknown Product (Array)

MP160 System + Active EMG electrodes + Hand Dynamometer

  • 1 x MP160 Data Acquisition Systems
  • 1 x Active Electrodes
  • 1 x Interface Cables CBL200 Series
  • 1 x Lead Wires with Clip
  • 1 x General-purpose Electrodes
  • 1 x Electrode Gels
  • 1 x High-level Transducer Module
  • 1 x General Purpose Transducer Amplifier
  • 1 x Hand Dynamometer 100 kgf

MP160 System + EMG amp, leads, disposable electrodes + Hand Dynamometer

  • 1 x MP160 Data Acquisition Systems
  • 1 x Module Extension Cables
  • 1 x Lead Wires with Clip
  • 1 x Lead Wires with Clip
  • 1 x Lead Wires with Clip
  • 1 x Cloth Base Electrodes
  • 1 x Electromyogram Amplifier
  • 1 x Abrasive Pads 10/pk
  • 1 x Electrode Impedance Checker
  • 1 x General Purpose Transducer Amplifier
  • 1 x Hand Dynamometer 100 kgf

Wireless

MP160 System + wireless Clench Force Dynamometer + EMG with 15 cm leads & disposable electrodes

  • 1 x MP160 Data Acquisition Systems
  • 1 x BioNomadix Wireless Pressure-Based Dynamometer with EMG
  • 1 x BioNomadix Wireless Clench Force Transducer
  • 1 x Electrode Leads - BioNomadix Wireless
  • 1 x Cloth Base Electrodes
  • 1 x Abrasive Pads 10/pk
  • 1 x Electrode Impedance Checker

BioNomadix Logger for Clench Force & EMG

  • 1 x BioNomadix Wireless Wearable Physiology Logger
  • 1 x Electrode Leads - BioNomadix Wireless
  • 1 x Cloth Base Electrodes
  • 1 x BioNomadix Wireless Clench Force Transducer
  • 1 x Abrasive Pads 10/pk
  • 1 x Electrode Impedance Checker

MRI

MP160 System + EMG for MRI with disposable electrodes & grip strength transducer

  • 1 x MP160 Data Acquisition Systems
  • 1 x MRI Filtered Cable Sets
  • 3 x Leads - RT for MRI
  • 1 x Electrode Gels
  • 1 x EMG Electromyogram Amplifier for MRI
  • 1 x Disp. Radiotranslucent Electrode, 100/pk
  • 1 x Abrasive Pads 10/pk
  • 1 x Electrode Impedance Checker
  • 1 x General Purpose Transducer Amplifier
  • 1 x Response/Hand Force for MRI

Animal

MP36R System plus leads & 12 mm needle electrodes

  • 1 x MP36R Systems
  • 3 x Needle Electrodes - Animal/Tissue
  • 1 x Electrode Lead Adapter, TP

MP160 System + EMG amp & needle electrodes

  • 1 x MP160 Data Acquisition Systems
  • 1 x Module Extension Cables
  • 3 x Needle Electrodes - Animal/Tissue
  • 1 x Electromyogram Amplifier
  • 1 x Electrode Impedance Checker

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