N. A. Bernstein, The co-ordination and regulation of movements, 1967.

J. A. Kelso, Dynamic Patterns: The Self-organization of Brain and Behavior, 1995.

H. Haken, J. A. Kelso, and H. Bunz, A theoretical model of phase transitions in human hand movements, Biological Cybernetics, vol.37, issue.5, pp.347-356, 1985.
DOI : 10.1007/BF00336922

R. Huys, L. Fernandez, R. J. Bootsma, and V. K. Jirsa, Fitts' law is not continuous in reciprocal aiming, Proceedings of the Royal Society B: Biological Sciences, vol.25, issue.3, pp.1179-1184, 2010.
DOI : 10.1007/s00422-005-0041-9
URL : http://rspb.royalsocietypublishing.org/content/royprsb/277/1685/1179.full.pdf

R. Huys, H. Knol, R. Sleimen-malkoun, J. Temprado, and V. K. Jirsa, Does changing Fitts??? index of difficulty evoke transitions in movement dynamics?, EPJ Nonlinear Biomedical Physics, vol.4, issue.4, 2015.
DOI : 10.1371/journal.pcbi.1000061
URL : https://hal.archives-ouvertes.fr/hal-01414051

R. Sleimen-malkoun, J. Temprado, R. Huys, V. K. Jirsa, and E. Berton, Is Fitts??? Law Continuous in Discrete Aiming?, PLoS ONE, vol.25, issue.7, p.41190, 2012.
DOI : 10.1371/journal.pone.0041190.s002
URL : https://hal.archives-ouvertes.fr/hal-01450706

P. Fitts, The information capacity of the human motor system in controlling the amplitude of movement., Journal of Experimental Psychology, vol.47, issue.6, pp.381-391, 1954.
DOI : 10.1037/h0055392

P. Fitts and J. Peterson, Information capacity of discrete motor responses., Journal of Experimental Psychology, vol.67, issue.2, pp.103-112, 1964.
DOI : 10.1037/h0045689

J. J. Buchanan, J. Park, and C. H. Shea, Target width scaling in a repetitive aiming task: switching between cyclical and discrete units of action, Experimental Brain Research, vol.77, issue.4, pp.710-725, 2006.
DOI : 10.1016/B978-0-12-679270-6.50022-X

F. Mechsner and G. Knoblich, Do Muscles Matter for Coordinated Action?, Journal of Experimental Psychology: Human Perception and Performance, vol.30, issue.3, pp.490-503, 2004.
DOI : 10.1037/0096-1523.30.3.490

T. S. Buchanan, D. G. Lloyd, K. Manal, and T. Besier, Neuromusculoskeletal Modeling: Estimation of Muscle Forces and Joint Moments and Movements from Measurements of Neural Command, Journal of Applied Biomechanics, vol.20, issue.4, pp.367-395, 2004.
DOI : 10.1123/jab.20.4.367

P. Gerus, G. Rao, and E. Berton, Subject-Specific Tendon-Aponeurosis Definition in Hill-Type Model Predicts Higher Muscle Forces in Dynamic Tasks, PLoS ONE, vol.7, issue.8, p.44406, 2012.
DOI : 10.1371/journal.pone.0044406.t002
URL : https://hal.archives-ouvertes.fr/hal-01442059

H. W. Axelson and K. E. Hagbarth, Human motor control consequences of thixotropic changes in muscular short-range stiffness, The Journal of Physiology, vol.62, issue.1, pp.279-288, 2001.
DOI : 10.1023/A:1005573625675

I. D. Loram, C. N. Maganaris, and M. Lakie, The passive, human calf muscles in relation to standing: the short range stiffness lies in the contractile component, The Journal of Physiology, vol.108, issue.2, pp.677-692, 2007.
DOI : 10.1007/978-1-4613-9030-5_1

F. Hug, K. Tucker, J. Gennisson, M. Tanter, and A. Nordez, Elastography for Muscle Biomechanics, Exercise and Sport Sciences Reviews, vol.43, issue.3, pp.125-133, 2015.
DOI : 10.1249/JES.0000000000000049

L. De, L. Fuente, H. Fernandez, L. Sarrazin, J. Berton et al., Influence of Task Constraints and Device Properties on Motor Patterns in a Realistic Control Situation, J. Mot. Behav, vol.46, pp.1-15, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01442056

L. De, L. Fuente, H. Rao, G. Sarrazin, J. Berton et al., A multi-level approach to investigate the control of an input device: application to a realistic pointing task, Ergonomics, vol.57, pp.1380-1396, 2014.
URL : https://hal.archives-ouvertes.fr/hal-01442057

J. A. Kelso, Instabilities and phase transitions in human brain and behavior, Frontiers in Human Neuroscience, vol.4, issue.23, 2010.
DOI : 10.3389/fnhum.2010.00023
URL : http://journal.frontiersin.org/article/10.3389/fnhum.2010.00023/pdf

J. A. Kelso, Multistability and metastability: understanding dynamic coordination in the brain, Philosophical Transactions of the Royal Society B: Biological Sciences, vol.301, issue.4, pp.906-918, 2012.
DOI : 10.1006/jtbi.1997.0476
URL : http://rstb.royalsocietypublishing.org/content/royptb/367/1591/906.full.pdf

J. A. Kelso, G. Dumas, and E. Tognoli, Outline of a general theory of behavior and brain coordination, Neural Networks, vol.37, pp.120-131, 2013.
DOI : 10.1016/j.neunet.2012.09.003

Y. P. Ivanenko, G. Cappellini, N. Dominici, R. E. Poppele, and F. Lacquaniti, Coordination of Locomotion with Voluntary Movements in Humans, Journal of Neuroscience, vol.25, issue.31, pp.7238-7253, 2005.
DOI : 10.1523/JNEUROSCI.1327-05.2005

D. Marchis and C. , Feedback of mechanical effectiveness induces adaptations in motor modules during cycling, Frontiers in Computational Neuroscience, vol.7, p.35, 2013.
DOI : 10.3389/fncom.2013.00035

R. Balasubramaniam and M. T. Turvey, Coordination modes in the multisegmental dynamics of hula hooping, Biological Cybernetics, vol.90, issue.3, pp.176-190, 2004.
DOI : 10.1007/s00422-003-0460-4

E. C. Hansen, D. Battaglia, A. Spiegler, G. Deco, and V. K. Jirsa, Functional connectivity dynamics: Modeling the switching behavior of the resting state, NeuroImage, vol.105, pp.525-535, 2015.
DOI : 10.1016/j.neuroimage.2014.11.001

R. M. Hutchison, Dynamic functional connectivity: Promise, issues, and interpretations, NeuroImage, vol.80, pp.360-378, 2013.
DOI : 10.1016/j.neuroimage.2013.05.079
URL : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3807588/pdf

S. Hagio, M. Fukuda, and M. Kouzaki, Identification of muscle synergies associated with gait transition in humans, Frontiers in Human Neuroscience, vol.17, p.48, 2015.
DOI : 10.1080/00222895.1992.9941630

Y. P. Ivanenko, R. E. Poppele, and F. Lacquaniti, Five basic muscle activation patterns account for muscle activity during human locomotion, The Journal of Physiology, vol.87, issue.1, pp.267-282, 2004.
DOI : 10.1002/jor.1100080215
URL : http://onlinelibrary.wiley.com/doi/10.1113/jphysiol.2003.057174/pdf

G. Cappellini, Y. P. Ivanenko, R. E. Poppele, and F. Lacquaniti, Motor Patterns in Human Walking and Running, Journal of Neurophysiology, vol.95, issue.6, pp.3426-3437, 2006.
DOI : 10.1152/jn.00081.2006
URL : http://jn.physiology.org/content/jn/95/6/3426.full.pdf

D. 'avella, A. Portone, A. Fernandez, L. Lacquaniti, and F. , Control of Fast-Reaching Movements by Muscle Synergy Combinations, Journal of Neuroscience, vol.26, issue.30, pp.7791-7810, 2006.
DOI : 10.1523/JNEUROSCI.0830-06.2006

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, 2008.
DOI : 10.1152/jn.01377.2007

J. A. Kelso, J. P. Scholz, and G. Schöner, Nonequilibrium phase transitions in coordinated biological motion: critical fluctuations, Physics Letters A, vol.118, issue.6, pp.279-284, 1986.
DOI : 10.1016/0375-9601(86)90359-2

A. Avella, P. Saltiel, and E. Bizzi, Combinations of muscle synergies in the construction of a natural motor behavior, Nature Neuroscience, vol.6, issue.3, pp.300-308, 2003.
DOI : 10.1038/nn1010

L. H. Ting and J. L. Mckay, Neuromechanics of muscle synergies for posture and movement, Current Opinion in Neurobiology, vol.17, issue.6, pp.622-628, 2007.
DOI : 10.1016/j.conb.2008.01.002
URL : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4350235/pdf

J. Frère and F. Hug, Between-subject variability of muscle synergies during a complex motor skill, Frontiers in Computational Neuroscience, vol.6, p.99, 2012.
DOI : 10.3389/fncom.2012.00099

G. Torres-oviedo and L. H. Ting, Subject-Specific Muscle Synergies in Human Balance Control Are Consistent Across Different Biomechanical Contexts, Journal of Neurophysiology, vol.103, issue.6, pp.3084-3098, 2010.
DOI : 10.1152/jn.00960.2009
URL : http://jn.physiology.org/content/jn/103/6/3084.full.pdf

J. A. Kelso, Phase transitions and critical behavior in human bimanual coordination.pdf, Am. J. Physiol. Regul. Integr. Comp. Physiol, vol.246, pp.1000-1004, 1984.

U. Proske, D. L. Morgan, and J. Gregory, Thixotropy in skeletal muscle and in muscle spindles: A review, Progress in Neurobiology, vol.41, issue.6, pp.705-721, 1993.
DOI : 10.1016/0301-0082(93)90032-N

K. S. Campbell, Short-Range Mechanical Properties of Skeletal and Cardiac Muscles, Adv. Exp. Med. Biol, vol.682, pp.223-246, 2010.
DOI : 10.1007/978-1-4419-6366-6_13
URL : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3095648/pdf

A. M. Van-mourik, A. Daffertshofer, and P. J. Beek, Deterministic and stochastic features of rhythmic human movement, Biological Cybernetics, vol.64, issue.3, pp.233-244, 2006.
DOI : 10.1007/978-3-642-61544-3

R. Friedrich and J. Peinke, Statistical properties of a turbulent cascade. Phys. D Nonlinear Phenom, pp.147-155, 1997.

R. Friedrich and J. Peinke, Description of a Turbulent Cascade by a Fokker-Planck Equation, Physical Review Letters, vol.13, issue.5, pp.863-866, 1997.
DOI : 10.1017/S0022112062000518

M. C. Tresch, V. C. Cheung, and A. Avella, Matrix Factorization Algorithms for the Identification of Muscle Synergies: Evaluation on Simulated and Experimental Data Sets, Journal of Neurophysiology, vol.95, issue.4, pp.2199-2212, 2006.
DOI : 10.1152/jn.00222.2005

J. W. Sammon, A Nonlinear Mapping for Data Structure Analysis, IEEE Transactions on Computers, vol.18, issue.5, pp.401-409, 1969.
DOI : 10.1109/T-C.1969.222678