Effects of Exercise on Doxorubicin-Induced Skeletal Muscle Dysfunction

Eric Bredahl, Keith B. Pfannenstiel, Colin J. Quinn, Reid Hayward, David S. Hydock

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Introduction Chemotherapy treatment with doxorubicin (DOX) can have a negative effect on normal skeletal muscle function. Recent research demonstrates the potential value of exercise in alleviating DOX-induced cardiotoxicity. Yet up to now, little research has been done to examine whether exercise might also be effective in addressing DOX's skeletal muscle adverse effects, especially because posttreatment skeletal muscle dysfunction may cause patient difficulties with completing activities of daily living. The main aim of this study was to examine how resistance training (RT) and treadmill (TM) training play a role in preventing DOX-induced skeletal muscle dysfunction. Methods Male Sprague-Dawley rats were randomly placed into an RT, TM, or sedentary (SED) group for 10 wk and then received either a bolus injection of DOX (15 mg·kg -1) or saline as a control. Skeletal muscle function was then assessed ex vivo 5 d after injection. Results SED animals treated with DOX showed significantly lower maximal twitch force, maximal rate of force production, and maximal rate of force decline versus SED + saline in the soleus (SOL) (Type I muscle). In the extensor digitorum longus (Type II muscle), treatment with DOX resulted in a significantly lower maximal rate of force production and maximal rate of force decline. RT preserved maximal twitch force and maximal rate of force decline in the SOL. TM attenuated DOX-induced fatigue in the SOL but not in the extensor digitorum longus. Conclusion These findings suggest that RT and TM before DOX could be useful in preserving skeletal muscle function and minimizing fatigue after chemotherapy, but this protection may be dependent on the skeletal muscle type.

Original languageEnglish
Pages (from-to)1468-1473
Number of pages6
JournalMedicine and Science in Sports and Exercise
Volume48
Issue number8
DOIs
StatePublished - Aug 1 2016
Externally publishedYes

Fingerprint

Doxorubicin
Skeletal Muscle
Exercise
Resistance Training
Fatigue
Drug Therapy
Muscles
Injections
Activities of Daily Living
Research
Sprague Dawley Rats
Therapeutics

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Effects of Exercise on Doxorubicin-Induced Skeletal Muscle Dysfunction. / Bredahl, Eric; Pfannenstiel, Keith B.; Quinn, Colin J.; Hayward, Reid; Hydock, David S.

In: Medicine and Science in Sports and Exercise, Vol. 48, No. 8, 01.08.2016, p. 1468-1473.

Research output: Contribution to journalArticle

Bredahl, Eric ; Pfannenstiel, Keith B. ; Quinn, Colin J. ; Hayward, Reid ; Hydock, David S. / Effects of Exercise on Doxorubicin-Induced Skeletal Muscle Dysfunction. In: Medicine and Science in Sports and Exercise. 2016 ; Vol. 48, No. 8. pp. 1468-1473.
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