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Volume 44, issue 4
Arch. Anim. Breed., 44, 441–450, 2001
https://doi.org/10.5194/aab-44-441-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.
Arch. Anim. Breed., 44, 441–450, 2001
https://doi.org/10.5194/aab-44-441-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.

  10 Oct 2001

10 Oct 2001

Effect of exercise on sarcoplasmic reticulum Ca2+ transport in muscle of mouse lines long-term selected for different Performance traits

U. Küchenmeister1, M. Langhammer2, U. Renne2, G. Nürnberg2, and K. Ender1 U. Küchenmeister et al.
  • 1Forschungsinstitut für die Biologie landwirtschaftlicher Nutztiere Dummerstorf, FB Muskelbiologie und Wachstum, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany
  • 2Forschungsinstitut für die Biologie landwirtschaftlicher Nutztiere Dummerstorf, FB Genetik und Biometrie, Wilhelm-Stahl-Allee 2, 18196 Dummerstorf, Germany

Abstract. Mouse lines used were long-term selected for high (DU-hTP) or low treadmill Performance (DU-ITP), or high locomotor open field activity (DU-hOF). The control line DU-Ks was maintained unselected. For each line 30 mice were used at 42 days of age. All lines were split into three groups: the first group was investigated without running exercise, the second had to run 500 m, and the third had to run until exhaustion on the treadmill. Compared to mice without running, in exhausted mice the maximal rate of SR Ca2+ uptake of the m. rectus femoris decreases were only found in the mouse lines DU-ITP, and DU-hOF (28.5 %, and 36.3 %, respectively; p < 0.05). The effect of the 500 m run was significant (p < 0.05) in DU-hTP, but not in the other lines. An effect of exhausting exercise on Ca2* ATPase was detected only in DU-hOF with increased values after the exhaustive run. The hypothesis, that exercise induced alterations in Ca2* transport in muscle of mice selected for high activity (DU-hOF) or high running Performance (DU-hTP) are attenuated compared to mice which were not selected (DU-Ks) or selected for low Performance (DU-ITP), could not be verified.

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