A. Arampatzis, G. Brüggemann, and V. Metzler, The effect of speed on leg stiffness and joint kinetics in human running, Journal of Biomechanics, vol.32, issue.12, pp.1349-53, 1999.
DOI : 10.1016/S0021-9290(99)00133-5

A. Belli, J. Lacour, P. Komi, R. Candau, and C. Denis, Mechanical step variability during treadmill running, European Journal of Applied Physiology and Occupational Physiology, vol.63, issue.6, pp.510-517, 1995.
DOI : 10.1007/BF00634380

D. Bentley, G. Millet, V. Vleck, and L. Mcnaughton, Specific Aspects of Contemporary Triathlon, Sports Medicine, vol.18, issue.4, pp.345-59, 2002.
DOI : 10.1249/00005768-199008000-00016

R. Blickhan, The spring-mass model for running and hopping, Journal of Biomechanics, vol.22, issue.11-12, pp.11-121217, 1989.
DOI : 10.1016/0021-9290(89)90224-8

M. Bonnard, A. Sirin, L. Oddsson, and A. Thorstensson, Different strategies to compensate for the effects of fatigue revealed by neuromuscular adaptation processes in humans, Neuroscience Letters, vol.166, issue.1, pp.101-106, 1994.
DOI : 10.1016/0304-3940(94)90850-8

M. Brughelli and J. Cronin, Influence of Running Velocity on Vertical, Leg and Joint Stiffness, Sports Medicine, vol.13, issue.4, pp.647-57, 2008.
DOI : 10.1123/jab.21.4.311

R. Candau, A. Belli, G. Millet, D. Georges, B. Barbier et al., Energy cost and running mechanics during a treadmill run to voluntary exhaustion in humans, European Journal of Applied Physiology, vol.77, issue.6, pp.479-85, 1998.
DOI : 10.1007/s004210050363

G. Cavagna, Force platforms as ergometers, J Appl Physiol, vol.39, issue.1, pp.174-183, 1975.

A. Chapman, B. Vicenzino, P. Blanch, S. Dowlan, and P. Hodges, Does cycling effect motor coordination of the leg during running in elite triathletes?, Journal of Science and Medicine in Sport, vol.11, issue.4, pp.371-80, 2008.
DOI : 10.1016/j.jsams.2007.02.008

G. Dalleau, A. Belli, M. Bourdin, and J. Lacour, The spring-mass model and the energy cost of treadmill running, European Journal of Applied Physiology, vol.77, issue.3, pp.257-63, 1998.
DOI : 10.1007/s004210050330

A. Delextrat, V. Tricot, T. Bernard, F. Vercruyssen, C. Hausswirth et al., Drafting during Swimming Improves Efficiency during Subsequent Cycling, Medicine & Science in Sports & Exercise, vol.35, issue.9, pp.1612-1621, 2003.
DOI : 10.1249/01.MSS.0000084422.49491.2C

A. Delextrat, V. Tricot, T. Bernard, F. Vercruyssen, C. Hausswirth et al., Modification of Cycling Biomechanics during a Swim-to-Cycle Trial, Journal of Applied Biomechanics, vol.21, issue.3, pp.297-308, 2005.
DOI : 10.1123/jab.21.3.297

D. Dutto and G. Smith, Changes in spring-mass characteristics during treadmill running to exhaustion, Medicine & Science in Sports & Exercise, vol.34, issue.8, pp.1324-1355, 2002.
DOI : 10.1097/00005768-200208000-00014

C. Farley and O. González, Leg stiffness and stride frequency in human running, Journal of Biomechanics, vol.29, issue.2, pp.181-187, 1996.
DOI : 10.1016/0021-9290(95)00029-1

G. Gaesser and D. Poole, The Slow Component of Oxygen Uptake Kinetics in Humans, Exercise and Sport Sciences Reviews, vol.24, pp.35-71, 1996.
DOI : 10.1249/00003677-199600240-00004

O. Girard, G. Millet, J. Slawinski, S. Racinais, and P. Micallef, Changes in leg-spring behavior during a 5000m self-paced run in differently trained athletes, Science & Sports, vol.25, issue.2, pp.99-102, 2010.
DOI : 10.1016/j.scispo.2009.10.001
URL : https://hal.archives-ouvertes.fr/hal-01469466

A. Gollhofer, P. Komi, M. Miyashita, and O. Aura, Fatigue During Stretch-Shortening Cycle Exercises: Changes in Mechanical Performance of Human Skeletal Muscle, International Journal of Sports Medicine, vol.08, issue.02, pp.71-79, 1987.
DOI : 10.1055/s-2008-1025644

C. Hausswirth and J. Brisswalter, Strategies for Improving Performance in Long Duration Events, Sports Medicine, vol.2, issue.8, pp.881-91, 2008.
DOI : 10.1097/00005768-199708000-00017

G. Heise and P. Martin, ???Leg spring??? characteristics and the aerobic demand of running, Medicine & Science in Sports & Exercise, vol.30, issue.5, pp.750-754, 1998.
DOI : 10.1097/00005768-199805000-00017

H. Hobara, K. Inoue, and K. Gomi, Continuous change in spring-mass characteristics during a 400m sprint, Journal of Science and Medicine in Sport, vol.13, issue.2, pp.256-61, 2010.
DOI : 10.1016/j.jsams.2009.02.002

H. Hobara, K. Inoue, T. Muraoka, K. Omuro, M. Sakamoto et al., Leg stiffness adjustment for a range of hopping frequencies in humans, Journal of Biomechanics, vol.43, issue.3, pp.506-517, 2010.
DOI : 10.1016/j.jbiomech.2009.09.040

I. Hunter and G. Smith, Preferred and optimal stride frequency, stiffness and economy: changes with fatigue during a 1-h high-intensity run, European Journal of Applied Physiology, vol.16, issue.6, pp.653-61, 2007.
DOI : 10.1123/ijsb.7.1.12

A. Kerdok, A. Biewener, T. Mcmahon, P. Weyand, and H. Herr, Energetics and mechanics of human running on surfaces of different stiffnesses, Journal of Applied Physiology, vol.92, issue.2, pp.469-78, 2002.
DOI : 10.1152/japplphysiol.01164.2000

S. Kuitunen, H. Kyröläinen, J. Avela, and P. Komi, Leg stiffness modulation during exhaustive stretch-shortening cycle exercise, Scandinavian Journal of Medicine and Science in Sports, vol.1, issue.3, pp.67-75, 2007.
DOI : 10.1007/BF00584651

H. Kyröläinen, T. Pullinen, R. Candau, J. Avela, P. Huttunen et al., Effects of marathon running on running economy and kinematics, European Journal of Applied Physiology, vol.82, issue.4, pp.297-304, 2000.
DOI : 10.1007/s004210000219

P. Laursen, E. Rhodes, and R. Langill, The effects of 3000-m swimming on subsequent 3-h cycling performance: implications for ultraendurance triathletes, European Journal of Applied Physiology, vol.83, issue.1, pp.28-33, 2000.
DOI : 10.1007/s004210000229

T. Mcmahon and G. Cheng, The mechanics of running: How does stiffness couple with speed?, Journal of Biomechanics, vol.23, issue.1, pp.65-78, 1990.
DOI : 10.1016/0021-9290(90)90042-2

G. Millet, G. Millet, M. Hofmann, and R. Candau, Alterations in Running Economy and Mechanics After Maximal Cycling in Triathletes: Influence of Performance Level, International Journal of Sports Medicine, vol.21, issue.2, pp.127-159, 2000.
DOI : 10.1055/s-2000-8866

J. Morin, T. Jeannin, B. Chevallier, and A. Belli, Spring-Mass Model Characteristics During Sprint Running: Correlation with Performance and Fatigue-Induced Changes, International Journal of Sports Medicine, vol.27, issue.2, pp.158-65, 2006.
DOI : 10.1055/s-2005-837569

J. Morin, P. Samozino, K. Zameziati, and A. Belli, Effects of altered stride frequency and contact time on leg-spring behavior in human running, Journal of Biomechanics, vol.40, issue.15, pp.3341-3349, 2007.
DOI : 10.1016/j.jbiomech.2007.05.001

A. Nummela, L. Paavolainen, K. Sharwood, M. Lambert, T. Noakes et al., Neuromuscular factors determining 5??km running performance and running economy in well-trained athletes, European Journal of Applied Physiology, vol.13, issue.Suppl 2, pp.1-8, 2006.
DOI : 10.1123/jab.13.2.254

A. Nummela, H. Rusko, and K. Häkkinen, Neuromuscular characteristics and fatigue during 10 km running, Int J Sports Med, vol.20, issue.8, pp.516-537, 1999.

D. Padua, B. Arnold, D. Perrin, B. Gansneder, C. Carcia et al., Fatigue, vertical leg stiffness, and stiffness control strategies in males and females, J Athl Train, vol.41, issue.3, pp.294-304, 2006.
DOI : 10.1097/00005768-200205001-00563

J. Slawinski and V. Billat, Changes in Internal Mechanical Cost during Overground Running to Exhaustion, Medicine & Science in Sports & Exercise, vol.37, issue.7, pp.1180-1186, 2005.
DOI : 10.1249/01.mss.0000170101.99529.a3

J. Slawinski, R. Heubert, J. Quievre, V. Billat, and C. Hanon, Changes in Spring-Mass Model Parameters and Energy Cost During Track Running to Exhaustion, Journal of Strength and Conditioning Research, vol.22, issue.3, pp.930-936, 2008.
DOI : 10.1519/JSC.0b013e31816a4475

V. Vleck, D. Bentley, G. Millet, and A. Bürgi, Pacing during an elite Olympic distance triathlon: Comparison between male and female competitors, Journal of Science and Medicine in Sport, vol.11, issue.4, pp.424-456, 2008.
DOI : 10.1016/j.jsams.2007.01.006