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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of applied physiology 28 (1970), S. 86-104 
    ISSN: 1439-6327
    Keywords: Heart Rate ; Telemetry ; Performance ; Staging Artists
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary During theatrical performances we examined the heart rate course in 38 subjects of both sexes. We followed the activities of the artists staging in drama, opera, operetta and ballet, as well as the activities of conductors. In most artists we also examined the reaction of the organism to a graduated load, by riding a bicycle ergometer. The daily regime of most artists is not convenient. Working capacity W170 proved highest in ballet, while the lowest values were found in drama and operetta. The average heart rate during the performance was in drama 110, in operetta 118, in opera 121, in ballet 133 and in conductors 126 beats per min. Striking increments are connected more with the physical and less with the psychical activity of the artist; the highest values — which were next to the maximal ones — were found in ballet. The circulation load, calculated from the heart rates during the performance shows, that the circulation load makes on average 28–36% for ballet and 40–45% for conductors. The blood pressure after the performance returnes very slowly to the initial values. The results of examinations serve for formulation of more general characteristics of the individual types of activities.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Aktivität der Serumcholinesterase (ChE) ist ein Maß für die Proteinsynthese der Leberzellen und damit wahrscheinlich für die Eiweißbilanz des Gesamtkörpers. Erzeugt man bei Meerschweinchen mittels Cycloheximid eine generalisierte, reversible Hemmung der Proteinsysthese, so nimmt die ChE-Aktivität im Serum innerhalb 24 Std um rund 50% ab. Eine prospektive Studie an 267 Patienten mit größeren elektiven Baucheingriffen zeigte folgende Ergebnisse: Die durchschnittlichen ChE-Aktivitäten bei den 27 postoperativ Verstorbenen waren bereits präoperativ signifikant niedriger (p 〈 0,01), und die Differenz zu den Überlebenden nahm postoperativ zu. Die Verstorbenen waren aber durchschnittlich auch älter als die Überlebenden. Nach den präoperativen ChE-Aktivitäten beurteilt, nahm die Proteinsynthese oberhalb einer Grenze von 60 Jahren mit dem Alter kontinuierlich ab, auch bei dieser Betrachtungsweise blieb jedoch die präoperative ChE-Aktivität der Verstorbenen signifikant erniedrigt. Bei den über 60jährigen Kranken hatten die Überlebenden ohne Malignom die höchsten, die Überlebenden mit Malignom intermediäre und die Verstorbenen die tiefsten ChE-Werte. Die als Routinemethode nach Weber leicht durchführbare ChE-Bestimmung gibt Einblick in den Eiweißhaushalt chirurgsicher Patienten und erlaubt prognostische Rückschlüsse. Wahrscheinlich ist sie als Indicator für den Erfolg parenteralerErnährungsmaßnahmen geeignet.
    Notes: Summary The activity of serum cholinesterase (ChE) is an indicator of hepatic protein synthesis and, therefore, probably of the overall nitrogen balance. A generalized, reversible inhibition of protein synthesis in guinea pigs by means of cycloheximide lowers the serum activity of ChE by 50% within 24 h. A prospective study in 267 patients subjected to major, elective abdominal surgery gave the following results: The average preoperative ChE activity was significantly lower (p 〈 0.01) in the 27 patients who died postoperatively than in the 240 survivors, and this discrepancy increased progressively. However, the average age of the non-survivors was also higher than that of the survivors. As judged from the preoperative ChE levels, protein synthesis decreased progressively with age in patients above sixty. Allowing for this, the ChE activity remained significantly depressed in the non-survivors. In patients above 60 years of age, the survivors without malignancy had the highest, the survivors with malignancy intermediate, and the non-survivors the lowest values. The activity measurement of serum ChE by the method of Weber is rapidly and easily performed, it provides information on the patient's protein metabolism and has prognostic implications. Also, it may probably serve as a valuable indicator for the success of parenteral feeding regimens.
    Type of Medium: Electronic Resource
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