TY  - JOUR
AU  - Berg, Aloys
A2  - Berg, Aloys
A2  - Haralambie, Georg
DB  - BISp
DP  - BISp
KW  - Belastung, körperliche
KW  - Belastungsdauer
KW  - Belastungsintensität
KW  - Blut
KW  - Enzymaktivität
KW  - Erythrolyse
KW  - Hämoglobin
KW  - Kreatinkinase
KW  - Mann
KW  - Serumenzym
KW  - Sportmedizin
KW  - Stoffwechsel
LA  - eng
TI  - Changes in serum creatine kinase and hexose phosphate isomerase activity with exercise duration
TT  - Veränderungen in der Serumkreatinkinase- und der Hexosephosphatisomerase-Aktivität mit Belastungsdauer
PY  - 1978
N2  - In 18 groups of trained healthy male subjects (n = 166; age 17-42 years) the influence of type and duration of long lasting exercise on the changes of creatine kinase (CPK) and hexose phosphate isomerase (PHI) activity in serum was studied. Above 65-70 of maximal aerobic capacity, a serum enzyme activity increase proportional to the exercise time was found with a different slope in each of the three exercise types examined (a) bicycle ergometer; b) ski race; C) impact-type exertion). Work duration of more than 300 min induced in the third type of exertion an accelerated increase in serum CPK. A third degree equation best describes the changes in serum CPK for nine of our groupsand five others from the literature. To ascertain the possible influence of intravascular hemolysis, sera were mixed with autologous erythrocyte hemolysates and enzyme activity measured. The findings are discussed with reference to critical aspects of the analytical methods, possible causes of serum enzymechanges, and possible use of enzyme measurements in evaluating adaptation of the organism to prolonged exercise.
L2  - https://dx.doi.org/10.1007/BF00421346
DO  - 10.1007/BF00421346
SP  - S. 191-201
SN  - 1439-6319
JO  - European journal of applied physiology
IS  - 3
VL  - 39
M3  - Gedruckte Ressource
M3  - Elektronische Ressource (online)
ID  - PU197904008857
ER  -