Journal of Applied Physiology Watch the video to see how APS reaches out to developing nations.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J Appl Physiol 87: 1758-1767, 1999;
8750-7587/99 $5.00
This Article
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Lee, S. C. K.
Right arrow Articles by Binder-Macleod, S. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Lee, S. C. K.
Right arrow Articles by Binder-Macleod, S. A.
Vol. 87, Issue 5, 1758-1767, November 1999

Catchlike-inducing train activation of human muscle during isotonic contractions: burst modulation

Samuel C. K. Lee, Cara N. Becker, and Stuart A. Binder-Macleod

Department of Physical Therapy, University of Delaware, Newark, Deleware 19716

Stimulation trains that exploit the catchlike property [catchlike-inducing trains (CITs)] produce greater forces and rates of rise of force than do constant-frequency trains (CFTs) during isometric contractions and isovelocity movements. This study examined the effect of CITs during isotonic contractions in healthy subjects. Knee extension was electrically elicited against a load of 10% of maximum voluntary isometric contraction. The stimulation intensity was set to produce 20% of maximum voluntary isometric contraction. The muscle was tested before and after fatigue with a 6-pulse CFT and 6-pulse CITs that contained an initial doublet, triplet, or quadruplet. For prefatigue responses, the greatest isotonic performance was produced by CITs with initial doublets. When the muscles were fatigued, triplet CITs were best. CITs produce greater excursion, work, peak power, and average power than do CFTs, because CITs produced more rapid rates of rise of force. Faster rates of rise of force enabled the preload on the muscle to be exceeded earlier during the stimulation train.

human quadriceps femoris muscle; catchlike property; isotonic; fatigue; functional electrical stimulation


This article has been cited by other articles:


Home page
 J. Neurophysiol.Home page
S. L. Hooper, C. Guschlbauer, G. von Uckermann, and A. Buschges
Slow Temporal Filtering May Largely Explain the Transformation of Stick Insect (Carausius morosus) Extensor Motor Neuron Activity Into Muscle Movement
J Neurophysiol, September 1, 2007; 98(3): 1718 - 1732.
[Abstract] [Full Text] [PDF]

Home page
 J. Neurophysiol.Home page
S. L. Hooper, C. Guschlbauer, G. von Uckermann, and A. Buschges
Different Motor Neuron Spike Patterns Produce Contractions With Very Similar Rises in Graded Slow Muscles
J Neurophysiol, February 1, 2007; 97(2): 1428 - 1444.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
M. B. Kebaetse, A. E. Turner, and S. A. Binder-Macleod
Effects of stimulation frequencies and patterns on performance of repetitive, nonisometric tasks
J Appl Physiol, January 1, 2002; 92(1): 109 - 116.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
S. C. K. Lee, C. N. Becker, and S. A. Binder-Macleod
Activation of human quadriceps femoris muscle during dynamic contractions: effects of load on fatigue
J Appl Physiol, September 1, 2000; 89(3): 926 - 936.
[Abstract] [Full Text] [PDF]

Home page
 J. Appl. Physiol.Home page
S. C. K. Lee and S. A. Binder-Macleod
Effects of activation frequency on dynamic performance of human fresh and fatigued muscles
J Appl Physiol, June 1, 2000; 88(6): 2166 - 2175.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online