PMID: 3758042Jan 1, 1986Paper

The response of runners to arduous triathlon competition

European Journal of Applied Physiology and Occupational Physiology
G RogersJ Hattingh

Abstract

As very few of the competitors in a triathlon are truly specialist in more than one of the three disciplines, high levels of physical (and mental) stress may result during the course of the event. We investigated some of the physiological responses occurring in runners participating in an "Iron Man" triathlon consisting of canoeing (20 km), cycling (90 km) and running (42 km), in that sequence. Twenty-one male entrants volunteered as subjects for the study. Prior to the competition, maximal oxygen consumption (VO2max) was determined. Basal venous blood samples were collected on the day prior to the competition and post-exercise venous blood samples were collected within 5 minutes of completion of the race. Serum iron was significantly reduced from a mean basal value of 20.6 mumol X l-1 to a mean value of 8.4 mumol X l-1 after the race. Cortisol levels showed a 3 fold increase after the race. Gross VO2max (l X min-1) and mass standardised VO2max (ml X min-1 X kg-1) were both negatively correlated to cortisol levels after the race (p less than 0.05). Total performance time was not related to gross VO2max (l X min-1) but was well correlated to mass corrected VO2max (ml X min-1 X kg-1). The marked fall in serum iron may have been r...Continue Reading

References

Feb 1, 1979·Scandinavian Journal of Haematology·W R BezwodaJ Levin
May 1, 1977·The Journal of Small Animal Practice·K W Clarke, P M Webbon
May 10, 1977·European Journal of Applied Physiology and Occupational Physiology·M B MaronJ E Wilkerson
Aug 1, 1976·The Journal of Clinical Investigation·C A FinchB Mackler
Jan 1, 1975·Medicine and Science in Sports·G D Tharp
Aug 1, 1974·Journal of Applied Physiology·D B Dill, D L Costill
Aug 1, 1972·Journal of Applied Physiology·B EkblomB Gullbring
Jan 1, 1983·Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Métabolisme·F FyhrquistI Immonen
Nov 1, 1983·Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology·P A FarrellA B Gustafson
Jul 1, 1984·Postgraduate Medical Journal·J H Ross, E C Attwood
Jan 7, 1983·Clinica Chimica Acta; International Journal of Clinical Chemistry·P E PaulevN S Pedersen
May 6, 1983·Science·J G Cannon, M J Kluger
May 1, 1980·Urology·M BoileauC V Hodges
Sep 11, 1981·JAMA : the Journal of the American Medical Association·R H DressendorferE A Amsterdam
Sep 1, 1981·The Journal of Nutrition·K S Ruckman, A R Sherman
Jan 1, 1980·Medicine and Science in Sports and Exercise·L EhnS Höglund
Nov 1, 1959·Journal of Applied Physiology·C H WYNDHAMZ U POTGIETER
Mar 1, 1982·The Physician and Sportsmedicine·D B Clement, R C Asmundson

❮ Previous
Next ❯

Citations

Jan 1, 1988·European Journal of Applied Physiology and Occupational Physiology·M GimenezP Nabet
Mar 1, 1995·International Journal of Biometeorology·K TerasawaG Ueda
Jul 15, 2011·Journal of Sports Sciences·Kamal JanakiramanJaspal Singh Sandhu
Jan 1, 1995·Journal of Sports Sciences·E R Eichner
Dec 11, 2003·British Journal of Sports Medicine·A I Da Silva, R Fernandez
Jun 10, 2011·Sports Medicine, Arthroscopy, Rehabilitation, Therapy & Technology : SMARTT·Kamal JanakiramanJaspal Singh Sandhu
Jun 24, 2004·Nutrition·Heinz Zoller, Wolfgang Vogel
Dec 2, 2011·Stress : the International Journal on the Biology of Stress·Cláudio Heitor BalthazarRegina Celia Spadari-Bratfisch
Sep 15, 1988·Experientia·H InagakiK Kato

❮ Previous
Next ❯

Related Concepts

Related Feeds

Anemia

Anemia develops when your blood lacks enough healthy red blood cells. Anemia of inflammation (AI, also called anemia of chronic disease) is a common, typically normocytic, normochromic anemia that is caused by an underlying inflammatory disease. Here is the latest research on anemia.

Related Papers

Journal of Adolescent Health Care : Official Publication of the Society for Adolescent Medicine
T W RowlandJ F Kelleher
European Journal of Applied Physiology and Occupational Physiology
H J GreenM Ali
British Journal of Sports Medicine
R W Deitrick
© 2021 Meta ULC. All rights reserved