Rank: 4879 based on 6 downloads (last 30 days) and 1 file submitted
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Kieran Coghlan

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SUNY at Buffalo

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10 May 2006 EMGONOFF Finds the "on" and "off" indicies of a single raw surface EMG burst (muscle contraction). Author: Kieran Coghlan emg, biomechanics, muscle, onset, timing, medical 6 3
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24 Jun 2011 EMGONOFF Finds the "on" and "off" indicies of a single raw surface EMG burst (muscle contraction). Author: Kieran Coghlan Armindo

Dear Kieran A. Coghlan

After read with very interest the article of Hodges “A comparison of computer-based methods for the determination of onset of muscle contraction using electromyography” I saw your matlab function what is very nice indeed (thank you for sharing) however I saw that the combination of parameters used in the article also account for the cutoff frequency used in the low pass filtering. According to Hodges “The criteria that most accurately identified the onset of EMG (25 ms/3 SD/50 Hz, 50 ms/1 SD/50 Hz, 10 ms/1 SD/ 500 Hz) resulted from the most appropriate combinations of the positive and negative influences of each of the parameters.” But in this function it seems that you don’t use a low pass filter cutoff frequency (is not an argument). Perhaps this information about low pass filter should be in the function or an option (low pass filter) could be added to the function so the raw data can be filtered before calculating the EMG onset and offset.

Kind regards,
Armindo Marques
19 Oct 2007 EMGONOFF Finds the "on" and "off" indicies of a single raw surface EMG burst (muscle contraction). Author: Kieran Coghlan B, J

For loops need vectorizing
13 May 2007 EMGONOFF Finds the "on" and "off" indicies of a single raw surface EMG burst (muscle contraction). Author: Kieran Coghlan Chang, Joe
11 Feb 2007 EMGONOFF Finds the "on" and "off" indicies of a single raw surface EMG burst (muscle contraction). Author: Kieran Coghlan robin, roiohan

no
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biomechanics, emg, medical, muscle, onset
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10 May 2006 EMGONOFF Finds the "on" and "off" indicies of a single raw surface EMG burst (muscle contraction). Author: Kieran Coghlan emg, biomechanics, muscle, onset, timing, medical 6 3
  • 3.0
3.0 | 3 ratings

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