S. Studenski, S. Perera, D. Wallace, J. M. Chandler, P. W. Duncan et al., Physical performance measures in the clinical setting, J Am Geriatric Soc, vol.51, issue.3, pp.314-336, 2003.

M. Cesari, S. B. Kritchevsky, B. W. Penninx, B. J. Nicklas, E. M. Simonsick et al., Prognostic value of usual gait speed in well-functioning older people results from the health aging and body composition study, J Am Geriatr Soc, vol.53, issue.10, pp.1675-80, 2005.

S. Studenski, S. Perera, K. Patel, C. Rosano, K. Faulkner et al., Gait speed and survival in older adults, JAMA, vol.305, issue.1, pp.50-58, 2011.

G. Abellan-van-kan, Y. Rolland, S. Andrieu, J. Bauer, O. Beauchet et al., Gait speed at usual pace as a predictor of adverse outcomes in community-dwelling people an international Academy on Nutrition and Aging (IANA) Task Force, J Nutr Health Aging, vol.13, issue.10, pp.881-890, 2009.

R. W. Bohannon, . Williams, and A. Andrews, Normal walking speed: a descriptive meta analysis. Physiotherapy, Review, vol.97, issue.3, pp.182-191, 2011.

J. E. Graham, G. V. Ostir, Y. F. Kuo, S. R. Fisher, and K. J. Ottenbacher, Relationship test methodology and mean velocity in timed walk tests: a review, Arch Phys med Rehabil, vol.89, issue.5, pp.865-72, 2008.

J. E. Graham, G. V. Ostir, S. R. Fischer, and K. J. Ottenbacher, Assessing walking speed in clinical research a systematic review, J. Eval Clin Pract, vol.14, issue.4, pp.552-62, 2008.

T. Rantanen, J. M. Guralnik, G. Izmirlian, J. D. Williamson, E. M. Simonsick et al., Association of muscle strength with maximal walking speed in disabled older women, Am J Phys Med Rehabil, 1998.

R. Cooper, D. Kuh, and R. Hardy, Objectively measured physical capability levels and mortality: systematic review and meta-analysis, BMJ, vol.341, 2010.

H. Frederiksen, J. Hjelmborg, M. Mortensen-j-mcgue, J. W. Vaupel, and K. Christensen, Age trajectories of grip strength: cross-sectional and longitudinal data among 8,342 Danes aged 46 to 102, Ann Epidemiol, vol.16, issue.7, pp.554-62, 2006.

C. R. Gale, C. N. Martyn, C. Cooper, and A. A. Sayer, Grip strength, body composition and mortality, Int J Epidemiol, vol.36, issue.1, pp.228-263, 2006.

J. M. Guralnik, L. Ferrucci, C. F. Pieper, S. G. Leveille, K. S. Markides et al., Lower extremity function and subsequent disability: consistency across studies, predictive models, and value of gait speed alone compared with the short physical performance battery, J Gerontol A Biol Sci Med Sci, vol.55, issue.4, pp.221-252, 2000.

A. Snih, S. Markides, K. S. Ray, L. Ostir, G. V. Goodwin et al., Handgrip Strength and Mortality in Older Mexican Americans, J Am Geriatr Soc, vol.50, issue.7, pp.1250-1256, 2002.

T. Rantanen, J. M. Guralnik, D. Foley, K. Masaki, S. Leveille et al., Midlife hand grip strength as a predictor of old age disability, JAMA, vol.281, issue.6, pp.558-60, 1999.

O. Shechtman, R. Davenport, M. M. Nabavi, and D. , Reliability and validity of the BTE-Primus grip tool, J Hand Ther, vol.16, issue.1, pp.36-42, 2003.

T. Rantanen, S. Volpato, L. Ferrucci, E. Heikkinen, L. P. Fried et al., Handgrip strength and causespecific and total mortality in older disabled women: exploring the mechanism, J Am Geriatr Soc, vol.51, issue.5, pp.636-677, 2003.

A. A. Sayer, H. E. Syddall, E. M. Martin-hj-dennison, F. H. Anderson, and C. Cooper, Falls, sarcopenia and growth in early life: findings from the Hertfordshire cohort study, Am J Epidemiol, vol.164, issue.7, pp.665-71, 2006.

D. B. Reuben, T. E. Seeman, E. Keeler, R. P. Hayes, L. Bowman et al., Refining the categorization of physical functional status: the added value of combining self-reported and performance-based measures, J Gerontol A Biol Sci Med Sci, vol.59, issue.10, pp.1056-61, 2004.

M. U. Perez-zepeda, J. G. Gonzalez-chevero, R. Salinas-martinez, G. Rrez-robledo, and L. M. , Risk factors for slow gait speed: a nested case-control secondary analysis of the Mexican health and aging study, J Frailty Aging, vol.4, issue.3, pp.139-182, 2015.

D. Melzer, T. Y. Lan, B. D. Tom, D. J. Deeg, and J. M. Guralnik, Variation in thresholds for reporting mobility disability between national population subgroups and studies, J Gerontol A Biol Sci Med Sci, vol.59, issue.12, pp.1295-303, 2004.

N. M. Massy-westropp, T. K. Gill, A. W. Taylor, R. W. Bohannon, and C. L. Hill, Hand Grip Strength: age and gender stratified normative data in a population-based study, BMC Res Notes, vol.4, p.127, 2011.

S. Plouvier, M. Carton, D. Cyr, S. Sabia, A. Leclerc et al., Socioeconomic disparities in gait speed and associated characteristics in early old age, BMC Musculoskeletal Disorders, vol.17, p.27108078, 2016.
URL : https://hal.archives-ouvertes.fr/inserm-01322556

E. Brunner, M. Shipley, V. Spencer, M. Kivimaki, T. Chandola et al., Social Inequality in walking speed in early old age in the Whitehall II study, J Gerontol A Biol Sci Med Sci, vol.64, issue.10, pp.1082-1091, 2009.
URL : https://hal.archives-ouvertes.fr/inserm-01160908

M. Goldberg, M. Carton, A. Descatha, A. Leclerc, Y. Roquelaure et al., Constances: a general prospective population-based cohort for occupational and environmental epidemiology: cohort profile, Occup Environ Med, vol.74, issue.1, pp.66-71, 2016.
URL : https://hal.archives-ouvertes.fr/hal-01881596

R. Ruiz, S. Lemonnier, A. Ozguler, A. Ozguler, E. Boos et al., High quality standards for a largescale prospective population-based observational cohort: Constances, BMC Public Health, vol.16, issue.1, p.27557750, 2016.
URL : https://hal.archives-ouvertes.fr/inserm-01356135

M. Zins, S. Bonenfant, M. Carton, M. Coeuret-pellicier, A. Guéguen et al., The CON-STANCES cohort: an open epidemiological laboratory

B. De, S. W. O'driscoll, and R. R. Richards, Grip strength testing using the BTE work simulator and the Jamar dynamometer: comparative study Baltimore Therapeutic equipment, J Hand Surg Am, vol.20, issue.2, pp.293-301, 1995.

V. Mathiowetz, N. Kashman, G. Vodland, K. Weber, M. Dowe et al., Grip and hand strength: normative data for adults, Arch Phys Med Rehabil, vol.66, issue.2, pp.69-74, 1985.

, ATS statement: guidelines for the six-minute walk test, ATS Committee on Proficiency Standards for Clinical Pulmonary Function Laboratories, vol.166, pp.111-118, 2002.

D. M. Buchner, E. L. Larson, E. H. Wagner, T. D. Koepsell, and B. J. De-lateur, Evidence for non-linear relationship between leg strength and gait speed, Age Ageing, vol.25, issue.5, pp.386-91, 1996.

R. J. Butland, J. Pang, E. R. Gross, A. A. Woodcock, and D. M. Geddes, Two-, Six-and 12-minutes walking test in respiratory disease, Br Med J (Clin Res Ed, vol.284, issue.6329, pp.1607-1615, 1982.

R. W. Bohannon, Hand-grip dynamometry predicts future outcomes in aging adults, J Geriatr Phys Ther, vol.31, issue.1, pp.3-10, 2008.

T. Reilly and J. Waterhouse, Sport performance: is there evidence that the body clock plays a role, Eur J Appl Physiol, vol.106, issue.3, p.19418063, 2009.