Does Muscle Mass Affect Running Times in Male Long-distance Master Runners?

Authors

Beat KnechtleBeat Knechtle ORCID2,*, Christoph Alexander Rst1, Patrizia Knechtle2, Thomas Rosemann1
2Gesundheitszentrum St. Gallen, St. Gallen, Switzerland
1Institute of General Practice and for Health Services Research, University of Zurich, Zurich, Switzerland
*Corresponding Author: Facharzt FMH fr Allgemeinmedizin Gesundheitszentrum St. Gallen, Vadianstrasse 26, 9001 St. Gallen, Switzerland., [email protected]. Email: [email protected]

Asian Journal of Sports Medicine:Vol. 3, issue 4; 247-256
Published online:Nov 30, 2012
Article type:Research Article
Received:Mar 12, 2012
Accepted:Jul 18, 2012
How to Cite:Knechtle B, Rst CA, Knechtle P, Rosemann T. Does Muscle Mass Affect Running Times in Male Long-distance Master Runners?. Asian J Sports Med. 2012;3(4):34547. doi: https://doi.org/10.5812/asjsm.34547

Abstract

Purpose:

The aim of the present study was to investigate associations between skeletal muscle mass, body fat and training characteristics with running times in master athletes (age > 35 years) in half-marathon, marathon and ultra-marathon.

Methods:

We compared skeletal muscle mass, body fat and training characteristics in master half-marathoners (n=103), master marathoners (n=91) and master ultra-marathoners (n=155) and investigated associations between body composition and training characteristics with race times using bi- and multi-variate analyses.

Results:

After multi-variate analysis, body fat was related to half-marathon (?=0.9, P=0.0003), marathon (?=2.2, P<0.0001), and ultra-marathon (?=10.5, P<0.0001) race times. In master half-marathoners (?=-4.3, P<0.0001) and master marathoners (?=-11.9, P<0.0001), speed during training was related to race times. In master ultra-marathoners, however, weekly running kilometers (?=-1.6, P<0.0001) were related to running times.

Conclusions:

To summarize, body fat and training characteristics, not skeletal muscle mass, were associated with running times in master half-marathoners, master marathoners, and master ultra-marathoners. Master half-marathoners and master marathoners rather rely on a high running speed during training whereas master ultra-marathoners rely on a high running volume during training. The common opinion that skeletal muscle mass affects running performance in master runners needs to be questioned.

Full Text

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Copyright

© 2012, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.

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