HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Submit a response Alert me when this article is cited Alert me when Rapid Responses are posted Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Mayhew, T. P Articles by Sahrmann, S. A Search for Related Content PubMed Articles by Mayhew, T. P Articles by Sahrmann, S. A Social Bookmarking                      What's this?

Authors' Response

This excerpt was created in the absence of an abstract.

We thank Dr. Soderberg for his thoughtful comments regarding our study. In reviewing the technological aspects of our article, he stated that "the electrode/skin impedance is well above the recommended values for surface electrodes." According to the reference cited by Dr. Soderberg, the amplifier input impedance should be at least 100 times greater than the electrode-skin impedance. In our case, the amplifier input impedance is 100,000 M; therefore, an acceptable upper level of electrode-skin impedance is 1,000 M. None of our measured values approached 1,000 M; rather than report individual values, we chose to indicate compliance with the criterion established by the International Society for Electrophysiological Kinesiology by stating that the electrode-skin impedance was well below 1,000 M.

Regarding the comments on measurement, the area values for the EMG data were obtained by counting squares on the strip chart paper....

CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this?