PMID: 6538841Jan 1, 1984Paper

Muscle metabolite accumulation following maximal exercise. A comparison between short-term and prolonged kayak performance

European Journal of Applied Physiology and Occupational Physiology
P A Tesch, J Karlsson

Abstract

Five elite flatwater kayak paddlers were studied during indoor simulated 500 and 10,000-m races, with performance times of 2 and 45 min, respectively. Muscle biopsies were obtained from the midportion of m. deltoideus immediately pre and post exercise. Concentrations of adenosine triphosphate (ATP), creatine phosphate (CP), glucose, glucose-6-phosphate (G-6-P), glycogen, and lactate were subsequently determined. Short term exercise resulted in statistically significant increases in glucose (P less than 0.001), G-6-P (P less than 0.05) and lactate (P less than 0.01) concentration concomitant with decreased CP (P less than 0.05) and glycogen (P less than 0.01). Following prolonged exercise, a non-significant elevation in glucose and a reduction (P less than 0.01) in glycogen were demonstrated. Evidently the metabolic demands for kayak competitions at 500 and 10,000 m are different. Thus, the energy contribution from glycolytic precursors and the anaerobic component is of greater relative importance in short distances than in exercise of long duration. A generalization of the findings to other athletic events of varying distances is proposed. The present data on arm-exercise is consistent with previous findings obtained in connect...Continue Reading

References

Mar 1, 1976·Acta Physiologica Scandinavica·B SaltinD Gollnick
Sep 1, 1979·European Journal of Applied Physiology and Occupational Physiology·W KindermannJ Keul
May 1, 1975·Journal of Applied Physiology·J KarlssonH G Knuttgen
May 1, 1973·Journal of Applied Physiology·P D GollnickB Saltin
Mar 1, 1970·Scandinavian Journal of Clinical and Laboratory Investigation·J Wahren
Nov 1, 1970·Journal of Applied Physiology·J Karlsson, B Saltin
Jan 1, 1971·Acta Physiologica Scandinavica·J C CostinG Vastagh
Jan 1, 1983·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·D ChasiotisE Hultman
Mar 1, 1981·Pflügers Archiv : European journal of physiology·R C HarrisK Sahlin

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Citations

Jan 1, 1986·European Journal of Applied Physiology and Occupational Physiology·P A TeschP Kaiser
Feb 12, 2009·Annals of Nuclear Medicine·Md Mehedi MasudManabu Tashiro
Jan 31, 2014·Journal of Strength and Conditioning Research·Thiago Oliveira BorgesAaron J Coutts
Jan 1, 1984·European Journal of Applied Physiology and Occupational Physiology·P A Tesch, S Lindeberg

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