[Heart frequencies and substrate concentrations in the blood of horses during training in Mexico City (2250 m above sea level)].

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    pubmed: 5715668
13. Keul J, Doll E, Keppler D, Reindell H. [Variations of arterial substrate level under the influence of physical work].. Int Z Angew Physiol 1966 Aug 4;22(4):356-85.
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Citations

1. Keul J, Scharf K, Nöcker J. [Behavior of the heart rate during training of superior performance athletes in Mexico City]. Int Z Angew Physiol 1968;26(2):150-63.
   pubmed: 5715668
2. Krzywanek H, Wittke G. [Parameters of energy metabolism and oxygen transport in thoroughbred racing horses in periods of different training intensity]. Int Z Angew Physiol 1970;28(3):228-38.
   pubmed: 5425335
3. Krzywanek H, Schulze A, Wittke G. [Influence of racing on several blood-parameters in trotters]. Int Z Angew Physiol 1973;31(2):127-39.
   pubmed: 4734347