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

This Article Full Text (PDF) Correction (v67,p979) 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 Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Mohr, T. Articles by Wessman, H. C Search for Related Content PubMed PubMed Citation Articles by Mohr, T. Articles by Wessman, H. C Social Bookmarking                      What's this?

Effect of High Voltage Stimulation on Blood Flow in the Rat Hind Limb

Dr. Mohr is Associate Professor, Department of Physical Therapy, University of North Dakota, School of Medicine, Grand Forks, ND 58201 (USA).
Mr. Wessman is Professor, Department of Physical Therapy, University of North Dakota, School of Medicine.

The purpose of this study was to test the effect of high voltage stimulation (HVS) on blood flow velocity (BFV) in the rat hind limb. A 20-MHz pulsed Doppler device was used to measure BFV changes in the femoral artery of 20 anesthetized rats after electrical stimulation. The animals were stimulated under the following conditions: 1) four different pulse rates, 2) changes in stimulus voltage, and 3) changes in polarity. Blood flow velocity also was measured in the unstimulated hind limb. Although each of the four pulse rates caused significant increases in BFV, the 20-pulse-per-second rate produced BFV increases significantly greater than the other three pulse rates. The BFV changes, on the average, occurred less than 1 minute from the onset of stimulation and lasted up to 14 minutes after the cessation of the stimulation. The BFV increased with increases in voltage intensity. Both the positive and negative poles elicited significant increases in BFV, but the negative pole produced the greatest increases. Blood flow in the unstimulated hind limb was unchanged after stimulation. This study indicates that HVS of muscle does cause significant increases in blood flow to the stimulated rat hind limb.

Key Words: Blood flow velocity • Electric stimulation • Muscles • Rats

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

This article has been cited by other articles:

				I. O. Man, M. C Morrissey, and J. K Cywinski Effect of Neuromuscular Electrical Stimulation on Ankle Swelling in the Early Period After Ankle Sprain Physical Therapy, January 1, 2007; 87(1): 53 - 65. [Abstract] [Full Text] [PDF]

				B. F Miller, K. G Gruben, and B. J Morgan Circulatory Responses to Voluntary and Electrically Induced Muscle Contractions in Humans Physical Therapy, January 1, 2000; 80(1): 53 - 60. [Abstract] [Full Text] [PDF]