P. Åstrand, K. Rodahl, . Kl, H. Dawes, P. Hansford et al., Textbook of work physiology : physiological bases of exercise. McGraw-Hill series in health education , physical education, and recreation Perceived and measured levels of exertion of patients with chronic back pain exercising in a hydrotherapy pool The biomechanical mechanism of how strength and power training improves walking speed in old adults remains unknown, pii: S0003999303002661 Beijersbergen CM, pp.1319-1323618, 1986.

M. Bernardi, A. Macaluso, E. Sproviero, V. Castellano, D. Coratella et al., Cost of walking and locomotor impairment, Journal of Electromyography and Kinesiology, vol.9, issue.2, pp.149-157, 1999.
DOI : 10.1016/S1050-6411(98)00046-7

G. Borg, Psychophysical bases of perceived exertion, Medicine & Science in Sports & Exercise, vol.14, issue.5, pp.377-381, 1982.
DOI : 10.1249/00005768-198205000-00012

R. Browning, E. Baker, J. Herron, and R. Kram, Effects of obesity and sex on the energetic cost and preferred speed of walking, Journal of Applied Physiology, vol.100, issue.2, pp.390-398, 2006.
DOI : 10.1152/japplphysiol.00767.2005

G. Cavagna, H. Thys, and A. Zamboni, The sources of external work in level walking and running., The Journal of Physiology, vol.262, issue.3, pp.639-657, 1976.
DOI : 10.1113/jphysiol.1976.sp011613

J. Crosbie, R. De-faria-negrao-filho, D. Nascimento, and P. Ferreira, Coordination of Spinal Motion in the Transverse and Frontal Planes During Walking in People With and Without Recurrent Low Back Pain, Spine, vol.38, issue.5, pp.286-292, 2013.
DOI : 10.1097/BRS.0b013e318281de28

C. Detrembleur, A. Van-den-hecke, and F. Dierick, Motion of the body centre of gravity as a summary indicator of the mechanics of human pathological gait, Gait & Posture, vol.12, issue.3, pp.243-250, 2000.
DOI : 10.1016/S0966-6362(00)00081-3

A. Gauthier, M. Lariviere, and N. Young, Psychometric Properties of the IPAQ: A Validation Study in a Sample of Northern Franco-Ontarians, Journal of Physical Activity and Health, vol.6, issue.s1, pp.54-60, 2009.
DOI : 10.1123/jpah.6.s1.s54

D. Griffin, D. Harmon, and N. Kennedy, Do patients with chronic low back pain have an altered level and/or pattern of physical activity compared to healthy individuals? A systematic review of the literature, Physiotherapy, vol.98, issue.1, pp.13-23, 2012.
DOI : 10.1016/j.physio.2011.04.350

P. Hodges, Pain and motor control: From the laboratory to rehabilitation, Journal of Electromyography and Kinesiology, vol.21, issue.2, pp.220-228, 2011.
DOI : 10.1016/j.jelekin.2011.01.002

D. Hoy, P. Brooks, F. Blyth, and R. Buchbinder, The Epidemiology of low back pain, Best Practice & Research Clinical Rheumatology, vol.24, issue.6, pp.769-781, 2010.
DOI : 10.1016/j.berh.2010.10.002

J. Jasiewicz, J. Allum, J. Middleton, A. Barriskill, P. Condie et al., Gait event detection using linear accelerometers or angular velocity transducers in able-bodied and spinal-cord injured individuals, Gait & Posture, vol.24, issue.4, pp.502-509, 2006.
DOI : 10.1016/j.gaitpost.2005.12.017

A. Kuo and J. Donelan, Dynamic Principles of Gait and Their Clinical Implications, Physical Therapy, vol.90, issue.2, pp.157-174, 2010.
DOI : 10.2522/ptj.20090125

C. Lamoth, O. Meijer, P. Wuisman, J. Van-dieen, M. Levin et al., Pelvis-Thorax Coordination in the Transverse Plane During Walking in Persons With Nonspecific Low Back Pain, Spine, vol.27, issue.4, pp.92-99, 2002.
DOI : 10.1097/00007632-200202150-00016

C. Lamoth, A. Daffertshofer, O. Meijer, L. Moseley, G. Wuisman et al., Effects of experimentally induced pain and fear of pain on trunk coordination and back muscle activity during walking, Clinical Biomechanics, vol.19, issue.6, pp.551-563, 2004.
DOI : 10.1016/j.clinbiomech.2003.10.006

C. Lamoth, A. Daffertshofer, O. Meijer, and P. Beek, How do persons with chronic low back pain speed up and slow down?, Gait & Posture, vol.23, issue.2, pp.230-239, 2006.
DOI : 10.1016/j.gaitpost.2005.02.006

C. Lamoth, O. Meijer, A. Daffertshofer, P. Wuisman, P. Beek et al., Effects of chronic low back pain on trunk coordination and back muscle activity during walking: changes in motor control, European Spine Journal, vol.26, issue.1, pp.23-4013, 2006.
DOI : 10.1007/s00586-004-0825-y

C. Lariviere, R. Das, A. Arsenault, S. Nadeau, A. Plamondon et al., Specificity of a Back Muscle Exercise Machine in Healthy and Low Back Pain Subjects, Medicine & Science in Sports & Exercise, vol.42, issue.3, pp.592-599, 2010.
DOI : 10.1249/MSS.0b013e3181b96029

C. Lee, M. Simmonds, B. Etnyre, and G. Morris, Influence of Pain Distribution on Gait Characteristics in Patients With Low Back Pain, Spine, vol.32, issue.12, pp.1329-1336, 2007.
DOI : 10.1097/BRS.0b013e318059af3b

M. Leeuw, M. Goossens, S. Linton, G. Crombez, K. Boersma et al., The Fear-Avoidance Model of Musculoskeletal Pain: Current State of Scientific Evidence, Journal of Behavioral Medicine, vol.8, issue.1, pp.77-94, 2007.
DOI : 10.1007/s10865-006-9085-0

P. Mahaudens, C. Detrembleur, M. Mousny, and X. Banse, Gait in adolescent idiopathic scoliosis: energy cost analysis, European Spine Journal, vol.198, issue.8, pp.1160-1168, 2009.
DOI : 10.1007/s00586-009-1002-0

D. Malatesta, D. Simar, Y. Dauvilliers, R. Candau, F. Borrani et al., Energy cost of walking and gait instability in healthy 65- and 80-yr-olds, Journal of Applied Physiology, vol.95, issue.6, pp.2248-2256, 2002.
DOI : 10.1152/japplphysiol.01106.2002

P. Martin, D. Rothstein, and D. Larish, Effects of age and physical activity status on the speed-aerobic demand relationship of walking, J Appl Physiol, vol.73, issue.1, pp.200-206, 1992.

A. Meichtry, J. Romkes, C. Gobelet, R. Brunner, and R. Muller, Criterion validity of 3D trunk accelerations to assess external work and power in able-bodied gait, Gait & Posture, vol.25, issue.1, pp.25-32, 2007.
DOI : 10.1016/j.gaitpost.2005.12.016

R. Miller, S. Kori, and D. Todd, The Tampa Scale, The Clinical Journal of Pain, vol.7, issue.1, pp.51-52, 1991.
DOI : 10.1097/00002508-199103000-00053

F. Nardello, L. Ardigo, and A. Minetti, Measured and predicted mechanical internal work in human locomotion, Human Movement Science, vol.30, issue.1, pp.90-104, 2011.
DOI : 10.1016/j.humov.2010.05.012

H. Osthus, R. Cziske, and E. Jacobi, Cross-Cultural Adaptation of a German Version of the Oswestry Disability Index and Evaluation of Its Measurement Properties, Spine, vol.31, issue.14, pp.448-453, 2006.
DOI : 10.1097/01.brs.0000222054.89431.42

M. Panjabi, L. Lugo, V. Morales, and A. Londono, Clinical spinal instability and low back pain, Journal of Electromyography and Kinesiology, vol.13, issue.4, pp.371-379, 2003.
DOI : 10.1016/S1050-6411(03)00044-0

N. Peyrot, D. Thivel, L. Isacco, J. Morin, P. Duche et al., Do mechanical gait parameters explain the higher metabolic cost of walking in obese adolescents?, Journal of Applied Physiology, vol.106, issue.6, pp.1763-1770, 2008.
DOI : 10.1152/japplphysiol.91240.2008

URL : https://hal.archives-ouvertes.fr/hal-01232361

D. Price, P. Mcgrath, A. Rafii, and B. Buckingham, The validation of visual analogue scales as ratio scale measures for chronic and experimental pain, Pain, vol.17, issue.1, pp.45-56, 1983.
DOI : 10.1016/0304-3959(83)90126-4

M. Simmonds and T. Derghazarian, Lower Back Pain Syndrome ACSM's exercise management for persons with chronic diseases and disabilities, Human Kinetics, pp.266-269, 2009.

M. Simmonds, C. Lee, B. Etnyre, and G. Morris, The Influence of Pain Distribution on Walking Velocity and Horizontal Ground Reaction Forces in Patients with Low Back Pain, Pain Research and Treatment, vol.70, issue.3, pp.214980-214990, 2012.
DOI : 10.1016/S0966-6362(96)01090-9

N. Taylor, O. Evans, and P. Goldie, The effect of walking faster on people with acute low back pain. Eur Spine J Off Publ Eur Spine Soc Eur Spinal Deform Soc Eur Sect Cervical, Spine Res Soc, vol.12, issue.2, pp.166-172, 2003.

L. Tesio, D. Lanzi, and C. Detrembleur, The 3-D motion of the centre of gravity of the human body during level walking. II. Lower limb amputees, Clinical Biomechanics, vol.13, issue.2, pp.83-90, 1998.
DOI : 10.1016/S0268-0033(97)00081-8

J. Tonosu, K. Takeshita, N. Hara, K. Matsudaira, S. Kato et al., The normative score and the cut-off value of the Oswestry Disability Index (ODI) European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, pp.1596-1602, 2012.

W. Van-den-hoorn, S. Bruijn, O. Meijer, P. Hodges, and J. Van-dieen, Mechanical coupling between transverse plane pelvis and thorax rotations during gait is higher in people with low back pain, Journal of Biomechanics, vol.45, issue.2, pp.342-347, 2012.
DOI : 10.1016/j.jbiomech.2011.10.024

M. Van-der-hulst, M. Vollenbroek-hutten, J. Rietman, and H. Hermens, Lumbar and abdominal muscle activity during walking in subjects with chronic low back pain: Support of the ???guarding??? hypothesis?, Journal of Electromyography and Kinesiology, vol.20, issue.1, pp.31-38, 2010.
DOI : 10.1016/j.jelekin.2009.03.009

M. Van-der-hulst, M. Vollenbroek-hutten, J. Rietman, L. Schaake, K. Groothuis-oudshoorn et al., Back Muscle Activation Patterns in Chronic Low Back Pain During Walking: A ???Guarding??? Hypothesis, The Clinical Journal of Pain, vol.26, issue.1, pp.30-37, 2010.
DOI : 10.1097/AJP.0b013e3181b40eca

J. Vlaeyen and S. Linton, Fear-avoidance model of chronic musculoskeletal pain: 12 years on, Pain, vol.153, issue.6, pp.1144-1147, 2012.
DOI : 10.1016/j.pain.2011.12.009

J. Vlaeyen, A. Kole-snijders, R. Boeren, and H. Van-eek, Fear of movement/(re)injury in chronic low back pain and its relation to behavioral performance, Pain, vol.62, issue.3, pp.363-372, 1995.
DOI : 10.1016/0304-3959(94)00279-N

D. Vogler, R. Paillex, M. Norberg, P. De-goumoens, and J. Cabri, Validation transculturelle de l???Oswestry disability index en fran??ais, Annales de R??adaptation et de M??decine Physique, vol.51, issue.5, pp.379-385, 2008.
DOI : 10.1016/j.annrmp.2008.03.006

L. Vogt, K. Pfeifer, and W. Banzer, Neuromuscular control of walking with chronic low-back pain, Manual Therapy, vol.8, issue.1, pp.21-28, 2003.
DOI : 10.1054/math.2002.0476

A. Wallbom, M. Geisser, A. Haig, K. Yamakawa, and D. Montgomery, Concordance between rating of perceived exertion and function in persons with chronic, disabling back pain, Journal of Occupational Rehabilitation, vol.12, issue.2, pp.93-98, 2002.
DOI : 10.1023/A:1015060530414