S. Baudry, M. Klass, and J. Duchateau, Postactivation potentiation influences differently the nonlinear summation of contractions in young and elderly adults, Journal of Applied Physiology, vol.98, issue.4, pp.1243-1250, 2005.
DOI : 10.1093/gerona/51A.3.B202

F. Bieuzen, C. Hausswirth, J. Louis, and J. Brisswalter, Age-Related Changes in Neuromuscular Function and Performance following a High-Intensity Intermittent Task in Endurance-Trained Men, Gerontology, vol.56, issue.1, pp.66-72, 2010.
DOI : 10.1159/000262286

W. Braun and D. Dutto, The effects of a single bout of downhill running and ensuing delayed onset of muscle soreness on running economy performed 48??h later, European Journal of Applied Physiology, vol.90, issue.1-2, pp.29-34, 2003.
DOI : 10.1007/s00421-003-0857-8

J. Brisswalter, C. Hausswirth, F. Vercruyssen, M. Collardeau, J. Vallier et al., Carbohydrate ingestion does not influence the change in energy cost during a 2-h run in well-trained triathletes, European Journal of Applied Physiology and Occupational Physiology, vol.81, issue.1-2, pp.108-113, 2000.
DOI : 10.1007/PL00013781

E. Brouwer, One simple formulate for calculating the heat expenditure and the quantities of carbohydrate and fat oxidized in metabolism of men and animals from gaseous exchange (oxygen intake and calorie acid output) and urine-N, Acta Physiol Phannacol Neerl, vol.6, pp.795-802, 1957.

P. Clarkson, K. Nosaka, and B. Braun, Muscle function after exercise-induced muscle damage and rapid adaptation, Medicine & Science in Sports & Exercise, vol.24, issue.5, pp.512-520, 1992.
DOI : 10.1249/00005768-199205000-00004

A. Coggan, R. Spina, M. Rogers, D. King, M. Brown et al., Histochemical and enzymatic characteristics of skeletal muscle in master athletes, Journal of Applied Physiology, vol.68, issue.5, pp.1896-1901, 1990.
DOI : 10.1152/jappl.1990.68.5.1896

E. Coyle, L. Sidossis, J. Horowitz, and J. Beltz, Cycling efficiency is related to the percentage of Type I muscle fibers, Medicine & Science in Sports & Exercise, vol.24, issue.7, pp.782-788, 1992.
DOI : 10.1249/00005768-199207000-00008

N. Fernström, L. Bakkman, M. Tonkonogi, I. Shabalina, Z. Rozhdestvenskaya et al., Reduced efficiency, but increased fat oxidation, in mitochondria from Article publié dans, European journal of applied physiology, vol.110, pp.6-1107, 2007.

G. Gaesser and G. Brooks, Muscular efficiency during steady-rate exercise: effects of speed and work rate, Journal of Applied Physiology, vol.38, issue.6, pp.1137-1139, 1975.
DOI : 10.1152/jappl.1975.38.6.1132

E. Gauché, R. Lepers, G. Rabita, J. Leveque, D. Bishop et al., Vitamin and Mineral Supplementation and Neuromuscular Recovery after a Running Race, Medicine & Science in Sports & Exercise, vol.38, issue.12, pp.2110-2117, 2006.
DOI : 10.1249/01.mss.0000235351.01438.5a

M. Gleeson, A. Blannin, N. Walsh, C. Field, and J. Pritchard, Effect of exercise-induced muscle damage on the blood lactate response to incremental exercise in humans, European Journal of Applied Physiology, vol.77, issue.3, pp.292-295, 1998.
DOI : 10.1007/s004210050336

T. Henwood and D. Taaffe, Short-term resistance training and the older adult: the effect of varied programmes for the enhancement of muscle strength and functional performance, Clinical Physiology and Functional Imaging, vol.60, issue.5, pp.305-313, 2006.
DOI : 10.1111/j.1532-5415.2005.53003.x

M. Hoffman and J. Wegelin, The Western States 100-Mile Endurance Run, Medicine & Science in Sports & Exercise, vol.41, issue.12, pp.2191-2198, 2009.
DOI : 10.1249/MSS.0b013e3181a8d553

E. Howley, D. Bassett, and H. Welch, Criteria for maximal oxygen uptake, Medicine & Science in Sports & Exercise, vol.27, issue.9, pp.1292-1301, 1995.
DOI : 10.1249/00005768-199509000-00009

R. Lepers, Muscle fatigue following prolonged dynamic exercise Advances in neuromuscular physiology of motor skills and muscle fatigue, Research Signpost, pp.369-390, 2009.

R. Lepers, M. Pousson, N. Maffiuletti, A. Martin, and J. Van-hoecke, The Effects of a Prolonged Running Exercise on Strength Characteristics, International Journal of Sports Medicine, vol.21, issue.4, pp.275-280, 2000.
DOI : 10.1055/s-2000-308

R. Lepers, C. Hausswirth, N. Maffiuletti, J. Brisswalter, and J. Van-hoecke, Evidence of neuromuscular fatigue after prolonged cycling exercise, Medicine & Science in Sports & Exercise, vol.32, issue.11, pp.1880-1886, 2000.
DOI : 10.1097/00005768-200011000-00010

URL : https://hal.archives-ouvertes.fr/hal-01762670

R. Lepers, F. Sultana, T. Bernard, C. Hausswirth, and J. Brisswalter, Age-Related Changes in Triathlon Performances, International Journal of Sports Medicine, vol.31, issue.04, pp.251-256, 2010.
DOI : 10.1055/s-0029-1243647

URL : https://hal.archives-ouvertes.fr/hal-01718749

J. Lexell, Human aging, muscle mass, and fiber type composition, J Gerontol A Biol Sci Med Sci, vol.50, pp.11-16, 1995.

J. Louis, C. Hausswirth, F. Bieuzen, and J. Brisswalter, Muscle Strength and Metabolism in Master Athletes, International Journal of Sports Medicine, vol.30, issue.10, pp.754-759, 2009.
DOI : 10.1055/s-0029-1231046

URL : https://hal.archives-ouvertes.fr/hal-01713200

D. Martin, M. Quod, G. Ci, and E. Coyle, Has Armstrong's cycle efficiency improved?, Journal of Applied Physiology, vol.99, issue.4, pp.1628-1629, 2005.
DOI : 10.1007/s004210050430

URL : http://jap.physiology.org/content/jap/99/4/1628.full.pdf

J. Metzger and R. Moss, Effects of tension and stiffness due to reduced pH in mammalian fast- and slow-twitch skinned skeletal muscle fibres., The Journal of Physiology, vol.428, issue.1, pp.737-750, 1990.
DOI : 10.1113/jphysiol.1990.sp018238

M. Miles, E. Walker, S. Conant, S. Hogan, and J. Kidd, Carbohydrate Influences Plasma Interleukin-6 but Not C-Reactive Protein or Creatine Kinase Following a 32-Km Mountain Trail Race, International Journal of Sport Nutrition and Exercise Metabolism, vol.16, issue.1, pp.36-46, 2006.
DOI : 10.1123/ijsnem.16.1.36

G. Millet, R. Lepers, G. Lattier, V. Martin, N. Babault et al., Influence of ultra-long-term fatigue on the oxygen cost of two types of locomotion, European Journal of Applied Physiology, vol.83, issue.4-5, pp.376-380, 2000.
DOI : 10.1007/s004210000313

G. Millet, R. Lepers, N. Maffiuletti, N. Babault, V. Martin et al., Alterations of neuromuscular function after an ultramarathon, Journal of Applied Physiology, vol.12, issue.2, pp.486-492, 2002.
DOI : 10.1139/y96-144

G. Millet, V. Martin, G. Lattier, and Y. Ballay, Mechanisms contributing to knee extensor strength loss after prolonged running exercise, Journal of Applied Physiology, vol.84, issue.1, pp.193-198, 2003.
DOI : 10.2165/00007256-199927010-00004

G. Millet, J. Morin, F. Degache, P. Edouard, L. Feasson et al., Running from Paris to Beijing: biomechanical and physiological consequences, European Journal of Applied Physiology, vol.30, issue.6, pp.731-738, 2009.
DOI : 10.1152/japplphysiol.00669.2001

M. Mogensen, M. Bagger, P. Pedersen, M. Fernstrom, and K. Sahlin, Cycling efficiency in humans is related to low UCP3 content and to type I fibres but not to mitochondrial efficiency, The Journal of Physiology, vol.26, issue.3, pp.669-681, 2006.
DOI : 10.1249/00005768-199411000-00009

L. Moseley and A. Jeukendrup, The reliability of cycling efficiency, Medicine and Science in Sports and Exercise, vol.33, pp.621-627, 2001.
DOI : 10.1097/00005768-200104000-00017

J. Moysi, J. Garcia-romero, J. Alvero-cruz, G. Vicente-rodriguez, I. Ara et al., Effects of Eccentric Exercise on Cycling Efficiency, Canadian Journal of Applied Physiology, vol.119, issue.3, pp.259-275, 2005.
DOI : 10.1113/jphysiol.2001.013839

C. Nicol, J. Avela, and P. Komi, The Stretch-Shortening Cycle, Sports Medicine, vol.52, issue.2, pp.977-999, 2006.
DOI : 10.1113/jphysiol.1991.sp018524

URL : https://hal.archives-ouvertes.fr/hal-01437531

D. Nieman, D. Henson, S. Mcanulty, L. Mcanulty, J. M. Ahmed et al., Vitamin E and Immunity after the Kona Triathlon World Championship, Medicine & Science in Sports & Exercise, vol.36, issue.8, pp.1328-1335, 2004.
DOI : 10.1249/01.MSS.0000135778.57355.CA

T. Noakes, Effect of Exercise on Serum Enzyme Activities in Humans, Sports Medicine, vol.4, issue.4, pp.245-267, 1987.
DOI : 10.2165/00007256-198704040-00003

K. Overgaard, A. Fredsted, A. Hyldal, T. Ingemann-hansen, H. Gissel et al., Effects of Running Distance and Training on Ca2+ Content and Damage in Human Muscle, Medicine & Science in Sports & Exercise, vol.36, pp.821-829, 2004.
DOI : 10.1249/01.MSS.0000126468.65714.60

N. Place, R. Lepers, G. Deley, and G. Millet, Time Course of Neuromuscular Alterations during a Prolonged Running Exercise, Medicine & Science in Sports & Exercise, vol.36, issue.8, pp.1347-1356, 2004.
DOI : 10.1249/01.MSS.0000135786.22996.77

A. Santalla, J. Naranjo, and N. Terrados, Muscle Efficiency Improves over Time in World-Class Cyclists, Medicine & Science in Sports & Exercise, vol.41, issue.5, pp.1096-1101, 2009.
DOI : 10.1249/MSS.0b013e318191c802

K. Sharwood, M. Collins, J. Goedecke, G. Wilson, and T. Noakes, Weight changes, medical complications, and performance during an Ironman triathlon, British Journal of Sports Medicine, vol.38, issue.6, pp.718-724, 2004.
DOI : 10.1136/bjsm.2003.007187

URL : http://bjsm.bmj.com/content/bjsports/38/6/718.full.pdf

N. Shima, C. Mcneil, and C. Rice, Mechanomyographic and electromyographic responses to stimulated and voluntary contractions in the dorsiflexors of young and old men, Muscle & Nerve, vol.9, issue.3, pp.371-378, 2007.
DOI : 10.1093/gerona/54.10.B452

R. Stearns, D. Casa, R. Lopez, B. Mcdermott, M. Gunio et al., Influence of Hydration Status on Pacing During Trail Running in the Heat, Journal of Strength and Conditioning Research, vol.23, issue.9, pp.2533-2541, 2009.
DOI : 10.1519/JSC.0b013e3181b73c3f

F. Sultana, J. Brisswalter, R. Lepers, C. Hausswirth, and T. Bernard, Effet de l?????ge et du sexe sur l?????volution des performances en triathlon olympique, Science & Sports, vol.23, issue.3-4, pp.130-135, 2008.
DOI : 10.1016/j.scispo.2008.01.003

K. Suzuki, J. Peake, K. Nosaka, M. Okutsu, C. Abbiss et al., Changes in markers of muscle damage, inflammation and HSP70 after an Ironman triathlon race, European Journal of Applied Physiology, vol.27, issue.6, pp.525-534, 2006.
DOI : 10.1152/ajpcell.00509.2002

H. Tanaka and D. Seals, Endurance exercise performance in Masters athletes: age-associated changes and underlying physiological mechanisms, The Journal of Physiology, vol.75, issue.1, pp.56-63, 2008.
DOI : 10.1097/00005768-200006000-00021

K. Tarpenning, M. Hamilton-wessler, R. Wiswell, and S. Hawkins, Endurance Training Delays Age of Decline in Leg Strength and Muscle Morphology, Medicine & Science in Sports & Exercise, vol.36, issue.1, pp.74-78, 2004.
DOI : 10.1249/01.MSS.0000106179.73735.A6

L. Thompson, Age-related muscle dysfunction, Experimental Gerontology, vol.44, issue.1-2, pp.106-111, 2009.
DOI : 10.1016/j.exger.2008.05.003

URL : http://europepmc.org/articles/pmc4074082?pdf=render

G. Warren, D. Lowe, and R. Armstrong, Measurement Tools Used in the Study of Eccentric Contraction???Induced Injury, Sports Medicine, vol.27, issue.1, pp.43-59, 1999.
DOI : 10.2165/00007256-199927010-00004

K. Wasserman, B. Whipp, S. Koyl, and W. Beaver, Anaerobic threshold and respiratory gas exchange during exercise., Journal of Applied Physiology, vol.35, issue.2, pp.236-243, 1973.
DOI : 10.1152/jappl.1973.35.2.236

. Ck-creatine-kinase, LDH lactate dehydrogenase * Significantly different from pre-exercise