NOAKES, T. D. The responses of plasma biochemical parameters to a 56-km race in novice and experienced ultra-marathon runners. Eur. J. Appl. Physiol. 1982, 49, 179-186
RODGERS, M. A. Creatine kinase isoenzyme activities in men and women following a marathon race. Med. Sci. Sports Exerc. 1985, 17, 679-682