Endurance training predisposes the TA but not the EDL to muscle injury

T. J. Patel*, R. L. Lieber, T. Ahsan, J. Friden

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effects of prior training were determined on muscle subjected to exercised-induced injury. Rabbit tibialis anterior (TA) and extensor digitorum longus (EDL) muscles were endurance-trained with low-frequency chronic stimulation for 30 minutes/day for 15 days. Cyclic eccentric contractions (EC) were then imposed on the muscle to induce damage. Three days following exercised-induced damage, contractile properties of the TA and EDL were determined. The data demonstrated a significant treatment effect in that TA and EDL oxidative capacity and endurance increased significantly. However, this increase in oxidative capacity did not reduce the effect of damage following EC-induced exercise. The maximum tetanic tension for control TA (1726 ± 172g) was significantly greater than trained TA (1018 ± 63g) (p<0.05). however, no significant difference existed between the EDL maximum tetanic tension (p>0. 6) for the control (2305 ± 272g) and trained (2120 ± 265g) groups. This suggests that oxidative capacity is not the sole preventer of skeletal muscle damage following eccentric damage.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual Conference on Engineering in Medicine and Biology
EditorsAndrew Y.J. Szeto, Rangaraj M. Rangayyan
PublisherPubl by IEEE
Pages1097-1098
Number of pages2
Editionpt 3
ISBN (Print)0780313771
StatePublished - Dec 1 1993
EventProceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 3 (of 3) - San Diego, CA, USA
Duration: Oct 28 1993Oct 31 1993

Publication series

NameProceedings of the Annual Conference on Engineering in Medicine and Biology
Numberpt 3
Volume15
ISSN (Print)0589-1019

Other

OtherProceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 3 (of 3)
CitySan Diego, CA, USA
Period10/28/9310/31/93

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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