The combined effect of creatine and resistance training on doxorubicin-induced muscle dysfunction

Eric C. Bredahl, Raquel B. Busekrus, David S. Hydock

Research output: Contribution to journalArticle

Abstract

Background: Doxorubicin (DOX) is associated with profound skeletal muscle dysfunction. Resistance training (RT) and creatine (Cr) monohydrate have been independently shown to protect against DOX-induced muscle dysfunction. However, no investigation has examined their combined effects on DOX-induced muscle dysfunction. Methods: Male Sprague-Dawley rats were randomly assigned to a RT or sedentary group. After 6 wk of training, the soleus (SOL) and extensor digitorum longus (EDL) were excised and placed in a tissue bath containing Krebs buffer (K) or a K containing Cr (25 mM) for 30 min. The buffers were refreshed with new K or K containing DOX (24 μM) and incubated for 30 min. Muscles were then subjected to maximal twitch and fatigue testing. Results: DOX-induced fatigue occurred at 40 s in the SOL and EDL. RT delayed DOX-induced fatigue by 20 s in the SOL and 10 s in the EDL. Cr treatment delayed the onset of DOX-induced fatigue by 10 s in the EDL. The combination of RT and Cr delayed DOX-induced fatigue by 50 s in the SOL and 20 s in the EDL. Conclusion: This study showed that a combined treatment with RT and Cr minimized DOX-induced fatigue in the SOL and EDL.

Original languageEnglish (US)
JournalNutrition and Cancer
DOIs
StateAccepted/In press - Jan 1 2019
Externally publishedYes

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Resistance Training
Creatine
Doxorubicin
Muscles
Fatigue
Buffers
Baths
Sprague Dawley Rats
Skeletal Muscle

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Oncology
  • Nutrition and Dietetics
  • Cancer Research

Cite this

The combined effect of creatine and resistance training on doxorubicin-induced muscle dysfunction. / Bredahl, Eric C.; Busekrus, Raquel B.; Hydock, David S.

In: Nutrition and Cancer, 01.01.2019.

Research output: Contribution to journalArticle

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abstract = "Background: Doxorubicin (DOX) is associated with profound skeletal muscle dysfunction. Resistance training (RT) and creatine (Cr) monohydrate have been independently shown to protect against DOX-induced muscle dysfunction. However, no investigation has examined their combined effects on DOX-induced muscle dysfunction. Methods: Male Sprague-Dawley rats were randomly assigned to a RT or sedentary group. After 6 wk of training, the soleus (SOL) and extensor digitorum longus (EDL) were excised and placed in a tissue bath containing Krebs buffer (K) or a K containing Cr (25 mM) for 30 min. The buffers were refreshed with new K or K containing DOX (24 μM) and incubated for 30 min. Muscles were then subjected to maximal twitch and fatigue testing. Results: DOX-induced fatigue occurred at 40 s in the SOL and EDL. RT delayed DOX-induced fatigue by 20 s in the SOL and 10 s in the EDL. Cr treatment delayed the onset of DOX-induced fatigue by 10 s in the EDL. The combination of RT and Cr delayed DOX-induced fatigue by 50 s in the SOL and 20 s in the EDL. Conclusion: This study showed that a combined treatment with RT and Cr minimized DOX-induced fatigue in the SOL and EDL.",
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