Dear All,
I have recently been experimenting with a Digitimer D185 cortical
stimulator to provide percutaneous stimulation to the quadriceps using
electrodes placed over the proximal and distal portions of the muscle.
Ideally I would like to apply a stimulus capability of producing a brief
tetanic contraction (...yes this does hurt, I have tried it my self a
number of times whilst I get the stimulus parameters right).
On close inspection of the technical specials on the D185, I notice that
by flipping a switch at the back to the stimulator to a "special"
setting, the stimulator is capability of delivering stimuli at a rate of
up to 1000pps.
Could anyone tell me if this is safe? Could this cause peripheral nerve
damage? What is the highest frequency that would be safe at a stimulus
intensity capable of producing maximal twitch force (following a single
stimulus)?
I would greatly appreciate any input anyone may have on this.
Kind regards,
Jack
************************************************** *********************
Dr Jack Cannon
BSocSci(Hons), GradDipEd, PhD
MAAESS, AEP
Bachelor of Exercise Science Course Coordinator
Lecturer in Motor Control and Learning
School of Human Movement Studies
Faculty of Education
Charles Sturt University
Panorama Avenue
Bathurst 2795
Australia
* (02) 6338 4334
* (02) 6338 4065
* jcannon@csu.edu.au
http://www.csu.edu.au/faculty/educat/human/f_staff.htm
************************************************** *********************
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I have recently been experimenting with a Digitimer D185 cortical
stimulator to provide percutaneous stimulation to the quadriceps using
electrodes placed over the proximal and distal portions of the muscle.
Ideally I would like to apply a stimulus capability of producing a brief
tetanic contraction (...yes this does hurt, I have tried it my self a
number of times whilst I get the stimulus parameters right).
On close inspection of the technical specials on the D185, I notice that
by flipping a switch at the back to the stimulator to a "special"
setting, the stimulator is capability of delivering stimuli at a rate of
up to 1000pps.
Could anyone tell me if this is safe? Could this cause peripheral nerve
damage? What is the highest frequency that would be safe at a stimulus
intensity capable of producing maximal twitch force (following a single
stimulus)?
I would greatly appreciate any input anyone may have on this.
Kind regards,
Jack
************************************************** *********************
Dr Jack Cannon
BSocSci(Hons), GradDipEd, PhD
MAAESS, AEP
Bachelor of Exercise Science Course Coordinator
Lecturer in Motor Control and Learning
School of Human Movement Studies
Faculty of Education
Charles Sturt University
Panorama Avenue
Bathurst 2795
Australia
* (02) 6338 4334
* (02) 6338 4065
* jcannon@csu.edu.au
http://www.csu.edu.au/faculty/educat/human/f_staff.htm
************************************************** *********************
YOU MUST READ THIS NOTICE
This email has been sent by Charles Sturt University (ABN 83 878 708
551). This email (and any attachment) is confidential and is intended
for the use of the addressee(s) only. If you are not the intended
recipient of this email you must not copy, distribute, take any action
in reliance on it or disclose it to anyone. Any confidentiality is not
waived or lost by reason of mistaken delivery to you. The views
expressed in this email are not necessarily those of Charles Sturt
University. It is very important that before opening any attachments to
this email you check them for viruses and defects. CSU does not accept
liability for any corruption or viruses or any consequence which arise
as a result of this email transmission. Email communications with CSU
may be subject to automated email filtering, which could result in the
delay or deletion of a legitimate email before it is read by its
intended recipient at CSU. Please tell us if you have concerns about
this automatic filtering. The Commonwealth Register of Institutions and
Courses for Overseas Students (CRICOS) Provider Number is 00005F (NSW),
025973E (QLD), and 01947G (VIC) for Charles Sturt University.