NDLI: Spreading of fatigue-related effects from active to inactive parts in the medial gastrocnemius muscle of the cat

Content Provider	Springer Nature Link
Author	Kostyukov, A. Kalezic, I. Serenko, S. Ljubisavljevic, M. Windhorst, U. Johansson, H.
Copyright Year	2001
Abstract	In the medial gastrocnemius muscle of the decerebrate cat, the spatial spread of fatigue between active and inactive muscle parts was studied. Conditioning fatiguing stimulation (CFS) was applied to a part of the muscle to test whether it had an effect on the contraction efficiency in an unstimulated part. To exclude somato-sympathetic reflexes during CFS, a full rhizotomy of the lumbo-sacral spinal cord was performed. The same ipsilateral ventral root, either L7 or S1, was divided into seven filaments, one of which was used for the test stimulation, and four or five for CFS. The CFS consisted of 12 s sessions of distributed stimulation of five (or four) filaments at a rate of 40 s–1, the sessions were repeated, every 40 s, 15 or more times. The test consisted of 12 s of regular stimulation at a rate of 10 s–1, preceded and followed by a single stimulus. The tests applied just after CFS showed a strong decline of both tension and electromyogram (EMG), amounting to only [mean (SD)] 0.45 (0.18) and 0.51 (0.19) (n=15), respectively, of the corresponding values in the tests before CFS. It thus turned out that depressive fatigue-related effects could spread within the muscle. At the same time, control reactions recorded in the lateral gastrocnemius during stimulation of its cut nerve did not change. Subsequent repetitions of the tests usually revealed a tendency towards restoration. The EMG reactions recovered more quickly than tension. The depression of EMG after CFS was accompanied by a slowing of the constituent M-waves; their latencies decreased during restoration. Distinct changes in the systemic blood pressure were observed during CFS. These changes were usually correlated well with muscle tension changes. The factors possibly underlying the observed effects may include diffusion of metabolites from active to inactive muscle fibres, lowering of the efficiency of neuro-muscular transmission due to squeezing of efferent motor terminals and changes in outer metabolite content, as well as local hypoxia due to increases in intramuscular pressure.
Starting Page	295
Ending Page	307
Page Count	13
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	86
Issue Number	4
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2014-04-12
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Physiology Occupational Medicine/Industrial Medicine Sports Medicine
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

The effect of postactivation potentiation on the mechanomyogram

Effects of fatigue on the electromechanical delay components in gastrocnemius medialis muscle

Can muscle shortening alone, explain the energy cost of muscle contraction in vivo?

Gender differences in the passive stiffness of the human gastrocnemius muscle during stretch

The apoptotic response to strenuous exercise of the gastrocnemius and solues muscle fibers in rats

Effects of a 4-week static stretch training program on passive stiffness of human gastrocnemius muscle-tendon unit in vivo

Effects of fatigue on trunk stability in elite gymnasts

Behaviour of the human gastrocnemius muscle architecture during submaximal isometric fatigue

Influence of exercise intensity on respiratory muscle fatigue and brachial artery blood flow during cycling exercise

Spreading of fatigue-related effects from active to inactive parts in the medial gastrocnemius muscle of the cat

Similar Documents

The effect of postactivation potentiation on the mechanomyogram

Effects of fatigue on the electromechanical delay components in gastrocnemius medialis muscle

Can muscle shortening alone, explain the energy cost of muscle contraction in vivo?

Gender differences in the passive stiffness of the human gastrocnemius muscle during stretch

The apoptotic response to strenuous exercise of the gastrocnemius and solues muscle fibers in rats

Effects of a 4-week static stretch training program on passive stiffness of human gastrocnemius muscle-tendon unit in vivo

Effects of fatigue on trunk stability in elite gymnasts

Behaviour of the human gastrocnemius muscle architecture during submaximal isometric fatigue

Influence of exercise intensity on respiratory muscle fatigue and brachial artery blood flow during cycling exercise

Spreading of fatigue-related effects from active to inactive parts in the medial gastrocnemius muscle of the cat