PMID: 1201746Dec 5, 1975Paper

The influence of varying oxygen tensions in inspired gas on 133Xenon muscle clearance and fatigue levels during sustained and dynamic conctractions

European Journal of Applied Physiology and Occupational Physiology
R T Hermiston, F Bonde-Petersen

Abstract

Isometric and isotonic endurance levels of both elbow flexors and knee extensors were tested during inspired gas mixtures of ca. 10%, 21% or 100% oxygen in nitrogen. The four work loads were set a 25, 50, 60 and 70% of maximal volitional isometric strength (IS). The isotonic exercise routine was carried out using weight lifting techniques of 20 repetitions per min from 75 degrees to 105 degrees of elbow flexion and knee extensions respectively. Prior to, during, and after the endurance experiments 133Xe clearance was monitored by light weight scintillation counters. A depot of 0.1 to 0.2 ml of isotonic saline containing 50 to 150 muCi of the isotope was used as an intramuscular tracer. The exercise clearance values varied inversely to the test load during isometric exercise. Isotonic exercise for both elbow flexors and knee extensors showed increasing clearance values up to 60% IS. Above this level a decrease in total clearance was recorded. Oxygen tension had no statistical effect on the clearance values. However, the relatively large scatter of the 133Xe clearance method, and an inhomogenous perfusion of skeletal muscle may have masked any anticipated effect of the various O2 tensions. Variations due to the raised intramuscul...Continue Reading

References

Jan 1, 1975·European Journal of Applied Physiology and Occupational Physiology·F Bonde-PetersenE Nielsen
Aug 15, 1975·European Journal of Applied Physiology and Occupational Physiology·F Bonde-PetersenB Lundin
Jan 1, 1973·Scandinavian Journal of Dental Research·F B Petersen, L V Christensen
Mar 1, 1973·Acta Physiologica Scandinavica·L FagraeusB Saltin
Mar 1, 1973·Scandinavian Journal of Clinical and Laboratory Investigation·M Hansen, J Madsen
Apr 1, 1971·Cardiovascular Research·J P Clausen, N A Lassen
Feb 1, 1967·Journal of Applied Physiology·G GrimbyB Saltin
Apr 25, 1960·Acta Physiologica Scandinavica·F B PETERSEN

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Citations

Jan 10, 1979·European Journal of Applied Physiology and Occupational Physiology·B DonsS Hancke
Jan 1, 1983·European Journal of Applied Physiology and Occupational Physiology·T SadamotoY Suzuki
Jan 1, 1975·European Journal of Applied Physiology and Occupational Physiology·F Bonde-PetersenE Nielsen
Aug 15, 1975·European Journal of Applied Physiology and Occupational Physiology·F Bonde-PetersenB Lundin
Aug 27, 2003·Journal of Physiological Anthropology and Applied Human Science·Kazuaki Yamashita, Yutaka Tochihara
Jan 14, 2010·Ergonomics·Laura A Frey Law, Keith G Avin
Jul 22, 2021·Experimental Physiology·Leonardo Henrique Perinotto AbdallaBenedito Sérgio Denadai

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