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Hello Biomech-Ler's,
I am graduate student pursuing a MSc. in biomechanics, looking
primarily at ways of reducing shoulder pain in wheelchair athletes. As
part of my thesis I would like to look at EMG of the shoulder muscles,
however, I am having trouble deciding upon the type of electrodes to use,
namely surface or indwelling electrodes. There was a recent paper
published by Mulroy et al, from Palo Alto, California, where indwelling
electrodes were used in wheelchair athletes.
Based on the information from this paper I feel that the
indwelling electrode method has its advantages when you are looking at
deep muscles. The problem that I have is centered primarily around the
fact that a) few people at this university do indwelling EMG electrode
work, so that there is little expertise available to help with the
placement of the electrodes in sensitive areas and (b) ethical approval
may be difficult to get at this university. Therefore I must consider the
use of surface electrodes around the shoulder area. My concern is that
there may be crosstalk in certain areas, such as the deltoids, due to the
movement of the skin. Also accurate readings of deeper muscles may be
harder to get.
I would appreciate any information and/or advice on(a) proper
placement of surface electrodes to eliminate crosstalk in the shoulder
area, and proper placement to get the best readings of deeper muscles (all
readings to be taken during during dynamic movements), (b) and arguements
for and against the use of either type of electrode and any difficulties
experienced. I will post a summary of replies at a later date.
Many sincere thanks in advance,
Dan Magnusson _______________________________________
M.Sc Biomechanics | Email: dmmagnus@acs.ucalgary.ca |
Human Performance Lab | OR |
Faculty of Kinesiology | dan@kin.ucalgary.ca |
University of Calgary _______________________________________
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"You do know how to use these things?"
"Haven't got a clue."
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Will Smith and Tommy Lee Jones
>From the movie "Men in Black"
I am graduate student pursuing a MSc. in biomechanics, looking
primarily at ways of reducing shoulder pain in wheelchair athletes. As
part of my thesis I would like to look at EMG of the shoulder muscles,
however, I am having trouble deciding upon the type of electrodes to use,
namely surface or indwelling electrodes. There was a recent paper
published by Mulroy et al, from Palo Alto, California, where indwelling
electrodes were used in wheelchair athletes.
Based on the information from this paper I feel that the
indwelling electrode method has its advantages when you are looking at
deep muscles. The problem that I have is centered primarily around the
fact that a) few people at this university do indwelling EMG electrode
work, so that there is little expertise available to help with the
placement of the electrodes in sensitive areas and (b) ethical approval
may be difficult to get at this university. Therefore I must consider the
use of surface electrodes around the shoulder area. My concern is that
there may be crosstalk in certain areas, such as the deltoids, due to the
movement of the skin. Also accurate readings of deeper muscles may be
harder to get.
I would appreciate any information and/or advice on(a) proper
placement of surface electrodes to eliminate crosstalk in the shoulder
area, and proper placement to get the best readings of deeper muscles (all
readings to be taken during during dynamic movements), (b) and arguements
for and against the use of either type of electrode and any difficulties
experienced. I will post a summary of replies at a later date.
Many sincere thanks in advance,
Dan Magnusson _______________________________________
M.Sc Biomechanics | Email: dmmagnus@acs.ucalgary.ca |
Human Performance Lab | OR |
Faculty of Kinesiology | dan@kin.ucalgary.ca |
University of Calgary _______________________________________
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"You do know how to use these things?"
"Haven't got a clue."
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Will Smith and Tommy Lee Jones
>From the movie "Men in Black"