S. Balasubramanian, R. Wei, and J. He, RUPERT closed loop control design, 2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, pp.3467-3470, 2008.
DOI : 10.1109/IEMBS.2008.4649952

S. Ball, I. Brown, and S. Scott, MEDARM: a rehabilitation robot with 5DOF at the shoulder complex, 2007 IEEE/ASME international conference on advanced intelligent mechatronics, pp.1-6, 2007.
DOI : 10.1109/AIM.2007.4412446

R. F. Beer, J. P. Dewald, M. L. Dawson, and W. Z. Rymer, Target-dependent differences between free and constrained arm movements in chronic hemiparesis, Experimental Brain Research, vol.156, issue.4, pp.458-470, 2004.
DOI : 10.1007/s00221-003-1807-8

R. F. Beer, M. D. Ellis, B. G. Holubar, and J. P. Dewald, Impact of gravity loading on post-stroke reaching and its relationship to weakness, Muscle & Nerve, vol.127, issue.2, pp.242-250, 2007.
DOI : 10.1002/mus.20817

N. Bernstein, The Coordination and Regulation of Movement, 1967.

E. Bizzi, V. C. Cheung, A. Avella, P. Saltiel, and M. Tresch, Combining modules for movement, Brain Research Reviews, vol.57, issue.1, pp.125-133, 2008.
DOI : 10.1016/j.brainresrev.2007.08.004

A. Blank, M. K. O-'malley, G. E. Francisco, and J. L. Contreras-vidal, A pre-clinical framework for neural control of a therapeutic upper-limb exoskeleton, 2013 6th International IEEE/EMBS Conference on Neural Engineering (NER), pp.1159-1162, 2013.
DOI : 10.1109/NER.2013.6696144

B. Bobath, Adult Hemiplegia: Evaluation and Treatment, 1990.

E. A. Brackbill, Y. Mao, S. K. Agrawal, M. Annapragada, and V. N. Dubey, Dynamics and control of a 4-dof wearable cable-driven upper arm exoskeleton, 2009 IEEE International Conference on Robotics and Automation, pp.2300-2305, 2009.
DOI : 10.1109/ROBOT.2009.5152545

B. R. Brewer, S. K. Mcdowell, and L. C. Worthen-chaudhari, Poststroke Upper Extremity Rehabilitation: A Review of Robotic Systems and Clinical Results, Topics in Stroke Rehabilitation, vol.163, issue.695, pp.22-4410, 1310.
DOI : 10.1093/brain/awg245

E. B. Brokaw, R. J. Holley, and P. S. Lum, Comparison of Joint Space and End Point Space Robotic Training Modalities for Rehabilitation of Interjoint Coordination in Individuals With Moderate to Severe Impairment From Chronic Stroke, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.21, issue.5, 2013.
DOI : 10.1109/TNSRE.2013.2238251

S. Brunnstrom, Movement Therapy in Hemiplegia: A Neurophysiological Approach, 1970.

D. G. Caldwell, N. G. Tsagarakis, S. Kousidou, N. Costa, I. Sarakoglou et al., Soft exoskeleton for upper and lower body rehabilitation ? desing, control and testing The integrated nature of motor cortical function, Int. J. HR. Neuroscientist, vol.4, issue.10, pp.549-573, 2004.

C. Carignan, M. Liszka, R. , and S. , Design of an arm exoskeleton with scapula motion for shoulder rehabilitation, ICAR '05. Proceedings., 12th International Conference on Advanced Robotics, 2005., pp.524-531, 2005.
DOI : 10.1109/ICAR.2005.1507459

C. Carignan, J. Tang, S. Roderick, and M. Naylor, A Configuration-Space Approach to Controlling a Rehabilitation Arm Exoskeleton, 2007 IEEE 10th International Conference on Rehabilitation Robotics, pp.179-187, 2007.
DOI : 10.1109/ICORR.2007.4428425

P. D. Cheney and E. E. Fetz, Comparable patterns of muscle facilitation evoked by individual corticomotoneuronal (CM) cells and by single intracortical microstimuli in primates: evidence for functional groups of cm cells, J. Neurophysiol, vol.53, pp.786-804, 1985.

V. C. Cheung, L. Piron, M. Agostini, S. Silvoni, A. Turolla et al., Stability of muscle synergies for voluntary actions after cortical stroke in humans, Proceedings of the National Academy of Sciences, vol.106, issue.46, pp.19563-19568, 2009.
DOI : 10.1073/pnas.0910114106

M. C. Cirstea and M. F. Levin, Compensatory strategies for reaching in stroke, Brain, vol.123, issue.5, 2000.
DOI : 10.1093/brain/123.5.940

M. C. Cirstea, A. B. Mitnitski, A. G. Feldman, and M. F. Levin, Interjoint coordination dynamics during reaching in stroke, Experimental Brain Research, vol.151, issue.3, pp.289-300, 2003.
DOI : 10.1007/s00221-003-1438-0

J. G. Colebatch and S. C. Gandevia, THE DISTRIBUTION OF MUSCULAR WEAKNESS IN UPPER MOTOR NEURON LESIONS AFFECTING THE ARM, Brain, vol.112, issue.3, pp.749-763, 1989.
DOI : 10.1093/brain/112.3.749

L. Colizzi, A. Lidonnici, and L. Pignolo, The ARAMIS project: A concept robot and technical design, Journal of Rehabilitation Medicine, vol.41, issue.12, pp.1011-1101, 2009.
DOI : 10.2340/16501977-0407

I. Collantes, G. Asín, J. Moreno, and J. Pons, Analysis of biomechanical data to determine the degree of users participation during robotic-assisted gait rehabilitation, 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, p.2012, 2012.
DOI : 10.1109/EMBC.2012.6347081

V. Crocher, N. Jarrasse, A. Sahbani, A. Roby-brami, and G. Morel, Changing human upper-limb synergies with an exoskeleton using viscous fields, 2011 IEEE International Conference on Robotics and Automation, pp.4657-4663, 2011.
DOI : 10.1109/ICRA.2011.5979626

V. Crocher, A. Sahbani, J. Robertson, A. Roby-brami, and G. Morel, Constraining Upper Limb Synergies of Hemiparetic Patients Using a Robotic Exoskeleton in the Perspective of Neuro-Rehabilitation, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.20, issue.3, pp.247-257, 2012.
DOI : 10.1109/TNSRE.2012.2190522
URL : https://hal.archives-ouvertes.fr/hal-00795577

P. Culmer, A. Jackson, S. Makower, R. Richardson, J. Cozens et al., A Control Strategy for Upper Limb Robotic Rehabilitation With a Dual Robot System, IEEE/ASME Transactions on Mechatronics, vol.15, issue.4, pp.575-585, 2009.
DOI : 10.1109/TMECH.2009.2030796

P. Culmer, A. Jackson, R. Richardson, B. Bhakta, M. Levesley et al., Development of a Dual Robotic System for Upper-Limb Stroke Rehabilitation, 9th International Conference on Rehabilitation Robotics, 2005. ICORR 2005., pp.61-65, 2005.
DOI : 10.1109/ICORR.2005.1501052

P. R. Culmer, A. E. Jackson, S. G. Makower, J. A. Cozens, M. C. Levesley et al., A novel robotic system for quantifying arm kinematics and kinetics: Description and evaluation in therapist-assisted passive arm movements post-stroke, Journal of Neuroscience Methods, vol.197, issue.2, pp.259-269, 2011.
DOI : 10.1016/j.jneumeth.2011.03.004

A. Avella, L. Fernandez, A. Portone, and F. Lacquaniti, Modulation of Phasic and Tonic Muscle Synergies With Reaching Direction and Speed, Journal of Neurophysiology, vol.100, issue.3, pp.1433-1454, 2007.
DOI : 10.1152/jn.01377.2007

A. Avella, A. Portone, L. Fernandez, and F. Lacquaniti, Control of Fast-Reaching Movements by Muscle Synergy Combinations, Frontiers in Human Neuroscience www, pp.7791-7810, 2006.
DOI : 10.1523/JNEUROSCI.0830-06.2006

J. P. Dewald and R. F. Beer, Abnormal joint torque patterns in the paretic upper limb of subjects with hemiparesis, 2<273::AID-MUS130>3.0.CO, pp.273-283, 2001.
DOI : 10.1002/1097-4598(200102)24:2<273::AID-MUS130>3.0.CO;2-Z

J. P. Dewald, R. F. Beer, J. D. Given, J. R. Mcguire, and W. Z. Rymer, Reorganization of flexion reflexes in the upper extremity of hemiparetic subjects, 9<1209: :AID-MUS7>3.0.CO, pp.1097-4598, 1999.
DOI : 10.1002/(SICI)1097-4598(199909)22:9<1209::AID-MUS7>3.0.CO;2-B

J. P. Dewald, P. S. Pope, J. D. Given, T. S. Buchanan, and W. Z. Rymer, Abnormal muscle coactivation patterns during isometric torque generation at the elbow and shoulder in hemiparetic subjects, Brain, vol.118, issue.2, pp.495-510, 1995.
DOI : 10.1093/brain/118.2.495

M. Ding, J. Ueda, and T. Ogasawara, Pinpointed muscle force control using a power-assisting device: System configuration and experiment, 2008 2nd IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics, pp.181-186, 2008.
DOI : 10.1109/BIOROB.2008.4762829

L. Dipietro, H. I. Krebs, S. E. Fasoli, B. T. Volpe, J. Stein et al., Changing Motor Synergies in Chronic Stroke, Journal of Neurophysiology, vol.98, issue.2, pp.757-768, 2006.
DOI : 10.1152/jn.01295.2006

M. D. Ellis, J. Drogos, C. Carmona, T. Keller, and J. P. Dewald, Neck rotation modulates flexion synergy torques, indicating an ipsilateral reticulospinal source for impairment in stroke, Journal of Neurophysiology, vol.108, issue.11, pp.3096-3104, 2011.
DOI : 10.1152/jn.01030.2011

M. D. Ellis, T. Sukal, T. Demott, and J. P. Dewald, Augmenting Clinical Evaluation of Hemiparetic Arm Movement With a Laboratory-Based Quantitative Measurement of Kinematics as a Function of Limb Loading, Neurorehabilitation and Neural Repair, vol.22, issue.4, pp.321-32910, 2008.
DOI : 10.1177/1545968307313509

M. D. Ellis, T. Sukal-moulton, and J. P. Dewald, Progressive Shoulder Abduction Loading is a Crucial Element of Arm Rehabilitation in Chronic Stroke, Neurorehabilitation and Neural Repair, vol.22, issue.8, pp.862-869, 2009.
DOI : 10.1177/1545968309332927

G. Fazekas, M. Horvath, T. Troznai, and A. Toth, Robot-mediated upper limb physiotherapy for patients with spastic hemiparesis: A preliminary study, Journal of Rehabilitation Medicine, vol.39, issue.7, pp.580-5821016501977, 2007.
DOI : 10.2340/16501977-0087

A. G. Feldman, V. Goussev, A. Sangole, and M. F. Levin, Threshold position control and the principle of minimal interaction in motor actions, Prog. Brain Res, vol.165, issue.06, pp.267-281, 2007.
DOI : 10.1016/S0079-6123(06)65017-6

A. Frisoli, C. Procopio, C. Chisari, I. Creatini, L. Bonfiglio et al., Positive effects of robotic exoskeleton training of upper limb reaching movements after stroke, Journal of NeuroEngineering and Rehabilitation, vol.9, issue.1, pp.36-46, 2012.
DOI : 10.1186/1743-0003-3-1

A. Frisoli, F. Rocchi, S. Marcheschi, A. Dettori, F. Salsedo et al., A New Force-Feedback Arm Exoskeleton for Haptic Interaction in Virtual Environments, First Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, pp.2005-195, 2005.
DOI : 10.1109/WHC.2005.15

A. Frisoli, F. Salsedo, M. Bergamasco, B. Rossi, and M. C. Carboncini, A Force-Feedback Exoskeleton for Upper-Limb Rehabilitation in Virtual Reality, Applied Bionics and Biomechanics, vol.6, issue.2, pp.115-12610, 1080.
DOI : 10.1155/2009/378254

D. Galinski, J. Sapin, and B. Dehez, Optimal design of an alignment-free two-DOF rehabilitation robot for the shoulder complex, 2013 IEEE 13th International Conference on Rehabilitation Robotics (ICORR), pp.1-7, 2013.
DOI : 10.1109/ICORR.2013.6650502

P. Garrec, J. Friconneau, Y. Measson, and Y. Perrot, ABLE, an innovative transparent exoskeleton for the upper-limb, 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, pp.2008-1483, 2008.
DOI : 10.1109/IROS.2008.4651012

H. Gomi, M. Kawato, R. A. Gopura, K. Kiguchi, L. et al., Human arm stiffness and equilibrium-point trajectory during multi-joint movement, IEEE/RSJ International Conference on Intelligent Robots and Systems, pp.163-171, 1997.
DOI : 10.1007/s004220050329

J. M. Gracies, Pathophysiology of spastic paresis. II: Emergence of muscle overactivity, Muscle & Nerve, vol.89, issue.5, 2005.
DOI : 10.1002/mus.20285

M. Guidali, A. Duschau-wicke, S. Broggi, V. Klamroth-marganska, T. Nef et al., A robotic system to train activities of daily living in a virtual environment, Medical & Biological Engineering & Computing, vol.16, issue.3, pp.1213-1223, 2011.
DOI : 10.1007/s11517-011-0809-0

M. Guidali, M. Schmiedeskamp, V. Klamroth, and R. Riener, Assessment and training of synergies with an arm rehabilitation robot, 2009 IEEE International Conference on Rehabilitation Robotics, pp.772-776, 2009.
DOI : 10.1109/ICORR.2009.5209516

E. Guigon, P. Baraduc, and M. Desmurget, Computational Motor Control: Redundancy and Invariance, Journal of Neurophysiology, vol.97, issue.1, pp.331-347, 2006.
DOI : 10.1152/jn.00290.2006
URL : https://hal.archives-ouvertes.fr/inserm-00214133

A. Gupta, O. Malley, and M. , Design of a haptic arm exoskeleton for training and rehabilitation, IEEE/ASME Transactions on Mechatronics, vol.11, issue.3, pp.280-289, 2006.
DOI : 10.1109/TMECH.2006.875558

J. He, E. Koeneman, R. Schultz, D. Herring, J. Wanberg et al., Rupert: a device for robotic upper extremity repetitive therapy, 27th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, pp.2005-6844, 2005.

Y. Hidaka, C. E. Han, S. L. Wolf, C. J. Winstein, and N. Schweighofer, Use It and Improve It or Lose It: Interactions between Arm Function and Use in Humans Post-stroke, PLoS Computational Biology, vol.19, issue.2, 2012.
DOI : 10.1371/journal.pcbi.1002343.s007

N. Hogan, Impedance control: an approach to manipulation, American Control Conference, pp.304-313, 1984.

N. Hogan and H. I. Krebs, Interactive robots for neuro-rehabilitation, Restor. Neurol. Neurosci, vol.22, pp.349-358, 2004.

N. Hogan, H. I. Krebs, B. Rohrer, J. J. Palazzolo, L. Dipietro et al., Motions or muscles? Some behavioral factors underlying robotic assistance of motor recovery, The Journal of Rehabilitation Research and Development, vol.43, issue.5, pp.605-618, 2006.
DOI : 10.1682/JRRD.2005.06.0103

C. F. Honeycutt and E. J. Perreault, Planning of Ballistic Movement following Stroke: Insights from the Startle Reflex, PLoS ONE, vol.7, issue.8, 2012.
DOI : 10.1371/journal.pone.0043097.t001

S. Housman, K. Scott, and D. Reinkensmeyer, A Randomized Controlled Trial of Gravity-Supported, Computer-Enhanced Arm Exercise for Individuals With Severe Hemiparesis, Neurorehabilitation and Neural Repair, vol.23, issue.5, pp.505-514, 2009.
DOI : 10.1177/1545968308331148

S. Housman, L. Vu, T. Rahman, R. Sanchez, and D. Reinkensmeyer, Armtraining with T-WREX after chronic stroke: preliminary results of a randomized controlled trial, IEEE 10th International Conference on Rehabilitation Robotics, pp.562-568, 2007.

V. Huang and J. Krakauer, Robotic neurorehabilitation: a computational motor learning perspective, Journal of NeuroEngineering and Rehabilitation, vol.6, issue.1, 2009.
DOI : 10.1186/1743-0003-6-5

N. Jarrassé and G. Morel, Connecting a Human Limb to an Exoskeleton, IEEE Transactions on Robotics, vol.28, issue.3, pp.697-709, 2012.
DOI : 10.1109/TRO.2011.2178151

N. Jarrasse, M. Tagliabue, J. Robertson, A. Maiza, V. Crocher et al., A Methodology to Quantify Alterations in Human Upper Limb Movement During Co-Manipulation With an Exoskeleton, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.18, issue.4, pp.389-397, 2010.
DOI : 10.1109/TNSRE.2010.2056388

G. R. Johnson, D. A. Carus, G. Parrini, S. Marchese, and R. Valeggi, The design of a five-degree-of-freedom powered orthosis for the upper limb, Proc. Inst, pp.275-284100954411011535867, 1243.
DOI : 10.1243/0954411011535867

H. Kim, L. M. Miller, I. Fedulow, M. Simkins, G. M. Abrams et al., Kinematic Data Analysis for Post-Stroke Patients Following Bilateral Versus Unilateral Rehabilitation With an Upper Limb Wearable Robotic System, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.21, issue.2, pp.153-164, 2013.
DOI : 10.1109/TNSRE.2012.2207462

T. Kitago, J. Liang, V. S. Huang, S. Hayes, P. Simon et al., Improvement After Constraint-Induced Movement Therapy, Neurorehabilitation and Neural Repair, vol.25, issue.2, pp.99-109101545968312452631, 1177.
DOI : 10.1177/1545968307305457

V. Klamroth-marganska, J. Blanco, K. Campen, A. Curt, V. Dietz et al., Three-dimensional, task-specific robot therapy of the arm after stroke: a multicentre, parallel-group randomised trial, The Lancet Neurology, vol.13, issue.2, pp.159-166, 2014.
DOI : 10.1016/S1474-4422(13)70305-3

J. Klein, S. Spencer, J. Allington, K. Minakata, E. Wolbrecht et al., Biomimetic orthosis for the neurorehabilitation of the elbow and shoulder (BONES), 2008 2nd IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics, pp.535-541, 2008.
DOI : 10.1109/BIOROB.2008.4762866

T. Krabben, G. B. Prange, B. I. Molier, A. H. Stienen, M. J. Jannink et al., Influence of gravity compensation training on synergistic movement patterns of the upper extremity after stroke, a pilot study, Journal of NeuroEngineering and Rehabilitation, vol.9, issue.1, pp.44-54, 2012.
DOI : 10.1002/mus.10305

C. Krishnan, D. Kotsapouikis, Y. Y. Dhaher, and W. Z. Rymer, Reducing Robotic Guidance During Robot-Assisted Gait Training Improves Gait Function: A Case Report on a Stroke Survivor, Archives of Physical Medicine and Rehabilitation, vol.94, issue.6, pp.1202-1206, 2013.
DOI : 10.1016/j.apmr.2012.11.016

J. W. Lance, The control of muscle tone, reflexes, and movement: Robert Wartenbeg Lecture, Neurology, vol.30, issue.12, 1980.
DOI : 10.1212/WNL.30.12.1303

P. Langhorne, J. Bernhardt, and G. Kwakkel, Stroke rehabilitation, The Lancet, vol.377, issue.9778, pp.1693-1702, 2011.
DOI : 10.1016/S0140-6736(11)60325-5

M. L. Latash, A. , and J. G. , Synergies in health and disease: relations to adaptive changes in motor coordination, Phys. Ther, vol.86, pp.1151-1160, 2006.

M. F. Levin, Interjoint coordination during pointing movements is disrupted in spastic hemiparesis, Brain, vol.119, issue.1, 1996.
DOI : 10.1093/brain/119.1.281

M. F. Levin and M. Dimov, Spatial zones for muscle coactivation and the control of postural stability, Brain Research, vol.757, issue.1, pp.43-59, 1997.
DOI : 10.1016/S0006-8993(97)00204-7

M. F. Levin, J. A. Kleim, and S. L. Wolf, What Do Motor "Recovery" and "Compensation" Mean in Patients Following Stroke?, Neurorehabilitation and Neural Repair, vol.23, issue.4, pp.313-319, 2009.
DOI : 10.1177/1545968308328727

M. F. Levin and E. Panturin, Sensorimotor Integration for Functional Recovery and the Bobath Approach, Motor Control, vol.15, issue.2, pp.285-301, 2011.
DOI : 10.1123/mcj.15.2.285

A. C. Lo, P. D. Guarino, L. G. Richards, J. K. Haselkorn, G. F. Wittenberg et al., Robot-Assisted Therapy for Long-Term Upper-Limb Impairment after Stroke, New England Journal of Medicine, vol.362, issue.19, pp.1772-178310, 1056.
DOI : 10.1056/NEJMoa0911341

H. S. Lo and S. Q. Xie, Exoskeleton robots for upper-limb rehabilitation: State of the art and future prospects, Medical Engineering & Physics, vol.34, issue.3, 2012.
DOI : 10.1016/j.medengphy.2011.10.004

C. Loconsole, S. Dettori, A. Frisoli, C. A. Avizzano, and M. Bergamasco, An EMG-based approach for on-line predicted torque control in robotic-assisted rehabilitation, 2014 IEEE Haptics Symposium (HAPTICS), pp.2014-181, 2014.
DOI : 10.1109/HAPTICS.2014.6775452

D. Lynch, M. Ferraro, J. Krol, C. M. Trudell, P. Christos et al., Continuous passive motion improves shoulder joint integrity following stroke, Clinical Rehabilitation, vol.67, issue.6, pp.594-599, 2005.
DOI : 10.1097/00019052-200112000-00011

N. Maclean, P. Pound, C. Wolfe, R. , and A. , Qualitative analysis of stroke patients' motivation for rehabilitation, BMJ, vol.321, issue.7268, 2000.
DOI : 10.1136/bmj.321.7268.1051

Y. Mao and S. Agrawal, Design of a Cable-Driven Arm Exoskeleton (CAREX) for Neural Rehabilitation, IEEE Transactions on Robotics, vol.28, issue.4, pp.922-931, 2012.
DOI : 10.1109/TRO.2012.2189496

L. Marchal-crespo and D. J. Reinkensmeyer, Review of control strategies for robotic movement training after neurologic injury, Journal of NeuroEngineering and Rehabilitation, vol.6, issue.1, 2009.
DOI : 10.1186/1743-0003-6-20

V. Martin, J. P. Scholz, and G. Schoner, Redundancy, Self-Motion, and Motor Control, Neural Computation, vol.149, issue.3, pp.1-08, 2008.
DOI : 10.1007/s00221-004-2149-x

S. Masiero, M. Armani, G. Ferlini, G. Rosati, and A. Rossi, Randomized Trial of a Robotic Assistive Device for the Upper Extremity During Early Inpatient Stroke Rehabilitation, Neurorehabilitation and Neural Repair, vol.7, issue.4, pp.377-38610, 2013.
DOI : 10.1212/WNL.54.10.1938

A. Mayr, M. Kofler, and L. Saltuari, ARMOR: Elektromechanischer Roboter f??r das Bewegungstraining der oberen Extremit??t nach Schlaganfall. Prospektive randomisierte kontrollierte Pilotstudie, Handchirurgie ?? Mikrochirurgie ?? Plastische Chirurgie, vol.40, issue.1, pp.66-73, 2008.
DOI : 10.1055/s-2007-989425

D. Mazevet, S. Meunier, P. Pradat-diehl, V. Marchand-pauvert, E. Pierrot-deseilligny et al., Changes in propriospinally mediated excitation of upper limb motoneurons in stroke patients, Brain, vol.126, issue.4, pp.988-1000, 2003.
DOI : 10.1093/brain/awg088
URL : https://hal.archives-ouvertes.fr/hal-00271958

T. Merdler, D. G. Liebermann, M. F. Levin, and S. Berman, Arm-plane representation of shoulder compensation during pointing movements in patients with stroke, Journal of Electromyography and Kinesiology, vol.23, issue.4, pp.938-947, 2013.
DOI : 10.1016/j.jelekin.2013.03.006

S. M. Michaelsen, R. Dannenbaum, M. F. Levin, and A. Luta, Task-Specific Training With Trunk Restraint on Arm Recovery in Stroke: Randomized Control Trial, Stroke, vol.37, issue.1, pp.186-192, 2001.
DOI : 10.1161/01.STR.0000196940.20446.c9

M. Milot, S. J. Spencer, V. Chan, J. P. Allington, J. Klein et al., A crossover pilot study evaluating the functional outcomes of two different types of robotic movement training in chronic stroke survivors using the arm exoskeleton BONES, Journal of NeuroEngineering and Rehabilitation, vol.10, issue.1, pp.112-122, 2013.
DOI : 10.1186/1743-0003-10-39

R. Morales, F. J. Badesa, N. García-aracil, J. M. Sabater, and C. Vidal, Pneumatic robotic systems for upper limb rehabilitation, Medical & Biological Engineering & Computing, vol.12, issue.4, pp.1145-1156, 2011.
DOI : 10.1007/s11517-011-0814-3

C. J. Mottram, N. L. Suresh, C. J. Heckman, M. A. Gorassini, and W. Z. Rymer, Origins of Abnormal Excitability in Biceps Brachii Motoneurons of Spastic-Paretic Stroke Survivors, Journal of Neurophysiology, vol.102, issue.4, pp.2026-2038, 2009.
DOI : 10.1152/jn.00151.2009

S. Moubarak, M. T. Pham, R. Moreau, R. , and T. , Gravity compensation of an upper extremity exoskeleton, 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology, pp.4489-4493, 2010.
DOI : 10.1109/IEMBS.2010.5626036
URL : https://hal.archives-ouvertes.fr/hal-00518075

S. Moubarak, M. T. Pham, T. Pajdla, R. , and T. , Design and Modeling of an Upper Extremity Exoskeleton, World Congress on Medical Physics and Biomedical Engineering, pp.476-479, 2009.
DOI : 10.1007/978-3-642-03889-1_127
URL : https://hal.archives-ouvertes.fr/hal-00443902

N. K. Musampa, P. A. Mathieu, and M. F. Levin, Relationship between stretch reflex thresholds and voluntary arm muscle activation in patients with spasticity, Experimental Brain Research, vol.60, issue.4, pp.579-593, 2007.
DOI : 10.1007/s00221-007-0956-6

T. Nef, M. Mihelj, and R. Riener, ARMin: a robot for patient-cooperative arm therapy, Medical & Biological Engineering & Computing, vol.85, issue.4, pp.887-900, 2007.
DOI : 10.1007/s11517-007-0226-6

R. J. Nudo, Recovery after brain injury: mechanisms and principles, Frontiers in Human Neuroscience, vol.7, 2013.
DOI : 10.3389/fnhum.2013.00887

J. L. Patton and F. A. Mussa-ivaldi, Robot-Assisted Adaptive Training: Custom Force Fields for Teaching Movement Patterns, IEEE Transactions on Biomedical Engineering, vol.51, issue.4, pp.636-646, 2002.
DOI : 10.1109/TBME.2003.821035

A. Pennycott, D. Wyss, H. Vallery, V. Klamroth-marganska, and R. Riener, Towards more effective robotic gait training for stroke rehabilitation: a review, Journal of NeuroEngineering and Rehabilitation, vol.9, issue.1, pp.65-75, 2012.
DOI : 10.1523/JNEUROSCI.2266-06.2006

J. Perry, J. Rosen, and S. Burns, Upper-Limb Powered Exoskeleton Design, IEEE/ASME Transactions on Mechatronics, vol.12, issue.4, pp.408-417, 2007.
DOI : 10.1109/TMECH.2007.901934

J. C. Perry and J. And-rosen, Design of a 7 degree-of-freedom upperlimb powered exoskeleton, The First IEEE, pp.805-810, 2006.

L. Pignolo, G. Dolce, G. Basta, L. F. Lucca, S. Serra et al., Upper limb rehabilitation after stroke: ARAMIS a &#x201C;robo-mechatronic&#x201D; innovative approach and prototype, 2012 4th IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics (BioRob), pp.2012-1410, 2012.
DOI : 10.1109/BioRob.2012.6290868

J. L. Pons, Wearable Robots, 2008.
DOI : 10.1002/9780470987667

G. B. Prange, M. J. Jannink, A. H. Stienen, H. Van-der-kooij, I. J. Mj et al., An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients, Journal of NeuroEngineering and Rehabilitation, vol.7, issue.1, pp.14-24, 2010.
DOI : 10.1186/1743-0003-7-14

M. Rahman, T. K. Ouimet, M. Saad, J. Kenne, and P. Archambault, Development and control of a wearable robot for rehabilitation of elbow and shoulder joint movements, IECON 2010, 36th Annual Conference on IEEE Industrial Electronics Society, pp.1506-1511, 2010.
DOI : 10.1109/IECON.2010.5675459

M. Rahman, M. Rahman, M. Saad, C. Ochoa-luna, S. Ferrer et al., Control of an Upper Extremity Exoskeleton Robot to Provide Active Assistive Therapy, pp.105-110, 2013.

D. J. Reinkensmeyer, E. T. Wolbrecht, V. Chan, C. Chou, S. C. Cramer et al., Comparison of Three-Dimensional, Assist-as-Needed Robotic Arm/Hand Movement Training Provided with Pneu-WREX to Conventional Tabletop Therapy After Chronic Stroke, American Journal of Physical Medicine & Rehabilitation, vol.91, issue.11, pp.91-232, 2012.
DOI : 10.1097/PHM.0b013e31826bce79

D. S. Reisman and J. P. Scholz, Aspects of joint coordination are preserved during pointing in persons with post-stroke hemiparesis, Brain, vol.126, issue.11, pp.2510-2527, 2003.
DOI : 10.1093/brain/awg246

D. S. Reisman and J. P. Scholz, Workspace location influences joint coordination during reaching in post-stroke hemiparesis, Experimental Brain Research, vol.123, issue.Pt 5, pp.265-276, 2006.
DOI : 10.1007/s00221-005-0209-5

Y. Ren, S. H. Kang, H. Park, Y. Wu, and L. Zhang, Developing a multi-joint upper limb exoskeleton robot for diagnosis, therapy, and outcome evaluation in neurorehabilitation, IEEE Trans. on Neural Syst. Rehabil. Eng, vol.21, pp.490-499, 2013.

R. Riener, M. Guidali, U. Keller, A. Duschau-wicke, V. Klamroth et al., Transferring ARMin to the Clinics and Industry, Topics in Spinal Cord Injury Rehabilitation, vol.17, issue.1, pp.54-5910, 1310.
DOI : 10.1310/sci1701-54

A. Roby-brami, A. Feydy, M. Combeaud, E. V. Biryukova, B. Bussel et al., Motor compensation and recovery for reaching in stroke patients, Acta Neurologica Scandinavica, vol.32, issue.5, 2003.
DOI : 10.1080/08990229870745
URL : https://hal.archives-ouvertes.fr/hal-00174066

A. Roby-brami, S. Jacobs, N. Bennis, and M. F. Levin, Hand orientation for grasping and arm joint rotation patterns in healthy subjects and hemiparetic stroke patients, Brain Research, vol.969, issue.1-2, pp.217-229, 2003.
DOI : 10.1016/S0006-8993(03)02334-5
URL : https://hal.archives-ouvertes.fr/hal-00174070

J. Roh, W. Z. Rymer, E. J. Perreault, S. B. Yoo, and R. F. Beer, Alterations in upper limb muscle synergy structure in chronic stroke survivors, Journal of Neurophysiology, vol.109, issue.3, pp.768-781, 2013.
DOI : 10.1152/jn.00670.2012

G. Rosati, P. Gallina, S. Masiero, and A. Rossi, Design of a New 5 dof Wire- Based Robot for Rehabilitation, 9th International Conference on Rehabilitation Robotics, pp.430-433, 2005.

R. J. Sanchez, . Jr, E. Wolbrecht, R. Smith, J. Liu et al., A Pneumatic Robot for Re-Training Arm Movement after Stroke: Rationale and Mechanical Design, 9th International Conference on Rehabilitation Robotics, 2005. ICORR 2005., pp.500-504, 2005.
DOI : 10.1109/ICORR.2005.1501151

A. Schiele, An explicit model to predict and interpret constraint force creation in pHRI with exoskeletons, 2008 IEEE International Conference on Robotics and Automation, pp.1324-1330, 2008.
DOI : 10.1109/ROBOT.2008.4543387

S. H. Scott and D. A. Winter, Biomechanical model of the human foot: Kinematics and kinetics during the stance phase of walking, Journal of Biomechanics, vol.26, issue.9, pp.1091-1104, 1993.
DOI : 10.1016/S0021-9290(05)80008-9

M. Simkins, H. Kim, G. Abrams, N. Byl, and J. And-rosen, Robotic unilateral and bilateral upper-limb movement training for stroke survivors afflicted by chronic hemiparesis, 2013 IEEE 13th International Conference on Rehabilitation Robotics (ICORR), pp.2013-2014, 2013.
DOI : 10.1109/ICORR.2013.6650506

A. H. Stienen, E. E. Hekman, H. Ter-braak, A. M. Aalsma, F. C. Van-der-helm et al., Design of a rotational hydro-elastic actuator for an active upper-extremity rehabilitation exoskeleton, 2008 2nd IEEE RAS & EMBS International Conference on Biomedical Robotics and Biomechatronics, pp.881-888, 2008.
DOI : 10.1109/BIOROB.2008.4762873

T. M. Sukal, M. D. Ellis, and J. P. Dewald, Shoulder abduction-induced reductions in reaching work area following hemiparetic stroke: neuroscientific implications, Experimental Brain Research, vol.85, issue.1, pp.215-223, 2007.
DOI : 10.1007/s00221-007-1029-6

T. Sukal-moulton, K. J. Krosschell, D. J. Gaebler-spira, and J. P. Dewald, Motor Impairment Factors Related to Brain Injury Timing in Early Hemiparesis, Part I, Neurorehabilitation and Neural Repair, vol.25, issue.3, pp.13-2310, 2014.
DOI : 10.1093/brain/awr103

E. Taub, G. Uswatte, V. W. Mark, M. , and D. M. , The learned nonuse phenomenon: implications for rehabilitation, Eura. Medicophys, vol.42, pp.241-256, 2006.

L. H. Ting, Dimensional reduction in sensorimotor systems: a framework for understanding muscle coordination of posture, Prog. Brain Res, vol.165, issue.06, pp.299-321, 2007.
DOI : 10.1016/S0079-6123(06)65019-X

A. Toth, G. Arz, G. Fazekas, D. Bratanov, and N. Zlatov, 25 Post Stroke Shoulder-Elbow Physiotherapy with Industrial Robots, Advances in Rehabilitation Robotics, pp.391-411, 2004.
DOI : 10.1007/10946978_25

P. Tropea, V. Monaco, M. Coscia, F. Posteraro, and S. Micera, Effects of early and intensive neuro-rehabilitative treatment on muscle synergies in acute post-stroke patients: a pilot study, Journal of NeuroEngineering and Rehabilitation, vol.10, issue.1, 2013.
DOI : 10.1177/1545968305284528

R. D. Trumbower, V. J. Ravichandran, M. A. Krutky, and E. J. Perreault, Contributions of Altered Stretch Reflex Coordination to Arm Impairments Following Stroke, Journal of Neurophysiology, vol.104, issue.6, pp.3612-3624, 2009.
DOI : 10.1152/jn.00804.2009

N. G. Tsagarakis, C. , and D. G. , Development and control of a " softactuated " exoskeleton for use in physiotherapy and training, Autonomous Robots, vol.15, issue.1, pp.21-33, 2003.
DOI : 10.1023/A:1024484615192

B. Tsai, W. W. Wang, L. Hsu, L. C. Fu, L. et al., An articulated rehabilitation robot for upper limb physiotherapy and training, 2010 IEEE/RSJ International Conference on Intelligent Robots and Systems, pp.2010-1470, 2010.
DOI : 10.1109/IROS.2010.5649567

T. E. Twitchell, THE RESTORATION OF MOTOR FUNCTION FOLLOWING HEMIPLEGIA IN MAN, Brain, vol.74, issue.4, pp.443-480, 1951.
DOI : 10.1093/brain/74.4.443

F. V. Van-der-helm, H. Veeger, G. Pronk, L. V. Der-woude, R. Rozendal et al., Geometry parameters for musculoskeletal modelling of the shoulder system Unraveling the interaction between pathological upper limb synergies and compensatory trunk movements during reach-to-grasp after stroke: a cross-sectional study, J. Biomech. Exp. Brain Res, vol.2592, issue.221, pp.129-144, 1007.

J. Van-kordelaar, E. E. Van-wegen, R. H. Nijland, A. Daffertshofer, and G. Kwakkel, Understanding Adaptive Motor Control of the Paretic Upper Limb Early Poststroke, Neurorehabilitation and Neural Repair, vol.41, issue.9, pp.854-86310, 2013.
DOI : 10.1177/1545968312440745

R. Vertechy, A. Frisoli, A. Dettori, M. Solazzi, and M. Bergamasco, Development of a new exoskeleton for upper limb rehabilitation, 2009 IEEE International Conference on Rehabilitation Robotics, pp.188-193, 2009.
DOI : 10.1109/ICORR.2009.5209502

B. T. Volpe, P. T. Huerta, J. L. Zipse, A. Rykman, D. Edwards et al., Robotic Devices as Therapeutic and Diagnostic Tools for Stroke Recovery, Archives of Neurology, vol.66, issue.9, pp.1086-1090182, 2009.
DOI : 10.1001/archneurol.2009.182

B. T. Volpe, D. Lynch, A. Rykman-berland, M. Ferraro, M. Galgano et al., Intensive Sensorimotor Arm Training Mediated by Therapist or Robot Improves Hemiparesis in Patients With Chronic Stroke, Neurorehabilitation and Neural Repair, vol.22, issue.3, pp.305-31010, 2008.
DOI : 10.1177/1545968307311102

J. M. Wagner, A. W. Dromerick, S. A. Sahrmann, L. , and C. E. , Upper extremity muscle activation during recovery of reaching in subjects with post-stroke hemiparesis, Clinical Neurophysiology, vol.118, issue.1, pp.164-176, 2007.
DOI : 10.1016/j.clinph.2006.09.022

S. K. Wee, A. M. Hughes, M. Warner, and J. H. Burridge, Trunk Restraint to Promote Upper Extremity Recovery in Stroke Patients, Neurorehabilitation and Neural Repair, vol.7, issue.7, pp.660-67710, 1177.
DOI : 10.1136/bmj.d5928

E. Wolbrecht, V. Chan, D. Reinkensmeyer, and J. Bobrow, Optimizing Compliant, Model-Based Robotic Assistance to Promote Neurorehabilitation, IEEE Transactions on Neural Systems and Rehabilitation Engineering, vol.16, issue.3, pp.286-297918389, 2008.
DOI : 10.1109/TNSRE.2008.918389

S. L. Wolf, C. J. Winstein, J. P. Miller, E. Taub, G. Uswatte et al., Effect of Constraint-Induced Movement Therapy on Upper Extremity Function 3 to 9 Months After Stroke, JAMA, vol.296, issue.17, pp.2095-2104, 2006.
DOI : 10.1001/jama.296.17.2095

W. Yu and J. And-rosen, Neural PID control of robot manipulators with application to an upper limb exoskeleton, IEEE Trans. Cybern, vol.43, pp.673-684, 2013.

W. Yu, J. Rosen, L. , and X. , PID admittance control for an upper limb exoskeleton, American Control Conference, pp.2011-1124, 2011.

K. M. Zackowski, A. W. Dromerick, S. A. Sahrmann, W. T. Thach, and A. J. Bastian, How do strength, sensation, spasticity and joint individuation relate to the reaching deficits of people with chronic hemiparesis?, Brain, vol.127, issue.5, pp.1035-1046, 2004.
DOI : 10.1093/brain/awh116

H. Zhang, H. Austin, S. Buchanan, R. Herman, J. Koeneman et al., Feasibility study of robot-assisted stroke rehabilitation at home using RUPERT, The 2011 IEEE/ICME International Conference on Complex Medical Engineering, pp.604-609, 2011.
DOI : 10.1109/ICCME.2011.5876812

L. Zhang, H. Park, and Y. And-ren, Developing an Intelligent Robotic Arm for Stroke Rehabilitation, 2007 IEEE 10th International Conference on Rehabilitation Robotics, pp.984-993, 2007.
DOI : 10.1109/ICORR.2007.4428543