Cross-training in birds: cold and exercise training produce similar changes in maximal metabolic output, muscle masses and myostatin expression in house sparrows (Passer domesticus).

@article{Zhang2015CrosstrainingIB,
  title={Cross-training in birds: cold and exercise training produce similar changes in maximal metabolic output, muscle masses and myostatin expression in house sparrows (Passer domesticus).},
  author={Yufeng Zhang and Kathleen Marie. Eyster and Jin-Song Liu and David L Swanson},
  journal={The Journal of experimental biology},
  year={2015},
  volume={218 Pt 14},
  pages={
          2190-200
        }
}
Maximal metabolic outputs for exercise and thermogenesis in birds presumably influence fitness through effects on flight and shivering performance. Because both summit (Msum, maximum thermoregulatory metabolic rate) and maximum (MMR, maximum exercise metabolic rate) metabolic rates are functions of skeletal muscle activity, correlations between these measurements and their mechanistic underpinnings might occur. To examine whether such correlations occur, we measured the effects of experimental… CONTINUE READING
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