European Journal of Applied Physiology

, Volume 110, Issue 6, pp 1107–1116

Effects of a trail running competition on muscular performance and efficiency in well-trained young and master athletes

  • Christopher Schmidt Easthope
  • Christophe Hausswirth
  • Julien Louis
  • Romuald Lepers
  • Fabrice Vercruyssen
  • Jeanick Brisswalter
Original Article

DOI: 10.1007/s00421-010-1597-1

Cite this article as:
Easthope, C.S., Hausswirth, C., Louis, J. et al. Eur J Appl Physiol (2010) 110: 1107. doi:10.1007/s00421-010-1597-1

Abstract

To determine the acute effects of a trail running competition and the age-dependent differences between young and master athletes, 23 subjects [10 young (30.5 ± 7 years), 13 master (45.9 ± 5.9 years)] participated in a 55-km trail running competition. The study was conceived as an intervention study compromising pre, post 1, 24, 48 and 72 h measurements. Measurements consisted of blood tests, ergometer cycling and maximal isometric voluntary contractions (MVC). Parameters monitored included MVC, twitch- and M-wave properties, EMG (RMS) of the vastus lateralis, two locomotion efficiency calculations and muscle damage markers in the blood (CK, LDH). Results indicate post-race increases in CK and LDH, decreases in MVC values (−32 vs. −40% in young and master, P < 0.01), decreases in EMG, increases in contraction time and concomitant decreases in peak twitch values, and a decrease in locomotion efficiency (−4.6 vs. −6.3% in young and master, P < 0.05). Masters showed similar fatigue and muscle damage than young but recuperation was slowed in masters. This study shows that trail runs are detrimental to muscle function, and gives indication that training may not halt muscle deterioration through aging, but can help maintain performance level.

Keywords

Trail running Ultra long distance Master athlete Eccentric contractions Muscle damage Efficiency 

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Christopher Schmidt Easthope
    • 1
  • Christophe Hausswirth
    • 2
  • Julien Louis
    • 1
  • Romuald Lepers
    • 3
  • Fabrice Vercruyssen
    • 4
  • Jeanick Brisswalter
    • 1
  1. 1.University of Nice Sophia AntipolisNiceFrance
  2. 2.National Institute of Sports Expertise and PerformanceParisFrance
  3. 3.INSERM U887, Motricité PlasticitéUniversité de BourgogneDijonFrance
  4. 4.HandiBio, EA 4322Université du sud Toulon-VarToulonFrance