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Multi-muscle synergies in elderly individuals: preparation to a step made under the self-paced and reaction time instructions

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Abstract

We studied multi-muscle synergies of healthy elderly persons during preparation to making a step (self-paced vs. reaction time). The uncontrolled manifold hypothesis was used to explore the organization of leg and trunk muscles into groups (M-modes) and co-variation of M-mode involvement (M-mode synergies) during stepping tasks. We hypothesized that aging accounts for changes in the structure of M-modes, as well as in M-mode synergies. Subjects performed two tasks: (1) a cyclic COP shift over a range corresponding to the maximal amplitude of voluntary COP shift at 1 Hz, (2) stepping tasks under 3 instructions, “comfortably, self-paced,” “very quick, self-paced,” and “as fast as possible to a visual signal.” Electromyographic signals of 10 postural muscles were recorded and analyzed. Principal component analysis was used to identify M-modes within the space of integrated indices of muscle activity in the cyclic sway task. Variance in the M-mode space across stepping trials was partitioned into two components, one that did not affect the average value of COP shift and the other that did. An index (ΔV) corresponding to the normalized difference between two components of variance was computed. The elderly subjects showed more “co-contraction M-mode” and “mixed M-mode” than that of the young subjects. During stepping tasks, both subject groups showed M-mode synergies stabilizing COP shifts in the stepping and supporting legs. The synergies of elderly subjects showed a smaller and delayed value than that of the young subjects. These results suggest that aging is associated with diminished control in multi-muscle synergies in the anticipatory postural adjustments during gait initiation.

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References

  • Asaka T, Wang Y (2008) Effects of aging on feedforward postural synergies. J Hum Kinetics 20:63–70

    Google Scholar 

  • Asaka T, Wang Y, Fukushima J, Latash ML (2008) Learning effects on muscle modes and multi-mode postural synergies. Exp Brain Res 184(3):323–338

    Article  PubMed  Google Scholar 

  • Belen’kii VY, GurWnkel VS, Pal’tsev YI (1967) Elements of control of voluntary movements. BioWzika 10:135–141

    Google Scholar 

  • Berstein NA (1967) The co-ordination and regulation of movements. Pergamon, Oxford

    Google Scholar 

  • Bouisset S, Zattara M (1987) Biomechanical study of the programming of anticipatory postural adjustments associated with voluntary movement. J Biomech 20:735–742

    Article  PubMed  CAS  Google Scholar 

  • Cheung VC, d’Avella A, Tresch MC, Bizzi E (2005) Central and sensory contributions to the activation and organization of muscle synergies during natural motor behaviors. J Neurosci 25:6419–6434

    Article  PubMed  CAS  Google Scholar 

  • D’Avella A, Bizzi E (2005) Shared and specific muscle synergies in natural motor behaviors. Proc Natl Acad Sci USA 102(8):3076–3081

    Google Scholar 

  • Hair JF, Anderson RE, Tatham RL, Black WC (1995) Factor analysis. In: Borkowsky D (ed) Multivariate data analysis. NJ Prentice-Hall, Englewood Cliffs, pp 364–404

  • Hughlings Jackson J (1889) On the comparative study of disease of the nervous system. Br Med J 17:355–362

    Article  Google Scholar 

  • Hugon M, Massion J, Wiesendanger M (1982) Anticipatory postural changes induced by active unloading and comparison with passive unloading in man. Pflugers Arch 393:292–296

    Article  PubMed  CAS  Google Scholar 

  • Ito T, Azuma T, Yamashita N (2003) Anticipatory control in the initiation of a single step under biomechanical constraints in humans. Neurosci Lett 352(3):207–210

    Article  PubMed  CAS  Google Scholar 

  • Ivanenko YP, Poppele RE, Lacquaniti F (2004) Five basic muscle activation patterns account for muscle activity during human locomotion. J Physiol 556:267–282

    Article  PubMed  CAS  Google Scholar 

  • Ivanenko YP, Cappellini G, Dominici N, Poppele RE, Lacquaniti F (2005) Coordination of locomotion with voluntary movements in humans. J Neurosci 25:7238–7253

    Article  PubMed  CAS  Google Scholar 

  • Krishnamoorthy V, Latash ML, Scholz JP, Zatsiorsky VM (2003) Muscle synergies during shifts of the center of pressure by standing persons. Exp Brain Res 152:281–292

    Article  PubMed  Google Scholar 

  • Krishnamoorthy V, Latash ML, Scholz JP, Zatsiorsky VM (2004) Muscle modes during shifts of the center of pressure by standing persons: effect of instability and additional support. Exp Brain Res 157:18–31

    Article  PubMed  Google Scholar 

  • Latash ML, Scholz JP, Schoner G (2002) Motor control strategies revealed in the structure of motor variability. Exerc Sport Sci Rev 30:26–31

    Article  PubMed  Google Scholar 

  • Lee WA (1984) Neuromotor synergies as a basis for coordinated intentional action. J Mot Behav 16:135–170

    PubMed  CAS  Google Scholar 

  • Lepers R, Brenière Y (1995) The role of anticipatory postural adjustments and gravity in gait initiation. Exp Brain Res 107:118–124

    Article  PubMed  CAS  Google Scholar 

  • Massion J (1992) Movement, posture and equilibrium: interaction and coordination. Prog Neurobiol 38:35–56

    Article  PubMed  CAS  Google Scholar 

  • Nachshon I, Denno D, Aurand S (1983) Lateral preference of hand, eye and foot: relation to cerebral dominance. Int J Neurosci 18:1–9

    Article  PubMed  CAS  Google Scholar 

  • Reeves ND, Narici MV, Maganaris CN (2006) Myotendinous plasticity to ageing and resistance exercise in humans. Exp Physiol 91(3):483–498

    Article  PubMed  CAS  Google Scholar 

  • Richman MB (1988) A cautionary note concerning a commonly applied eigenanalysis procedure. Tellus 40B:50–58

    Article  CAS  Google Scholar 

  • Scholz JP, Schoner G (1999) The uncontrolled manifold concept: identifying control variables for a functional task. Exp Brain Res 126:289–306

    Article  PubMed  CAS  Google Scholar 

  • Schöner G (1995) Recent developments and problems in human movement science and their conceptual implications. Ecol Psychol 8:291–314

    Article  Google Scholar 

  • Ting LH, Macpherson JM (2005) A limited set of muscle synergies for force control during a postural task. J Neurophysiol 93:609–613

    Article  PubMed  Google Scholar 

  • Torres-Oviedo G, Ting LH (2007) Muscle synergies characterizing human postural responses. J Neurophysiol 98(4):2144–2156

    Article  PubMed  Google Scholar 

  • Tresch MC, Cheung VC, D’Avela A (2006) Matrix factorization algorithms for the identification of muscle synergies: evaluation of simulated and experimental data sets. J Neurophysiol 95:2199–2212

    Article  PubMed  Google Scholar 

  • Wang Y, Asaka T (2008) Muscle synergies involved in shifts of the center of pressure while standing on a narrow support. Brain Res Bull 76(1–2):16–25

    Article  PubMed  Google Scholar 

  • Wang Y, Zatsiorsky VM, Latash ML (2005) Muscle synergies involved in shifting the center of pressure while making a first step. Exp Brain Res 167:196–210

    Article  PubMed  Google Scholar 

  • Wang Y, Zatsiorsky VM, Latash ML (2006a) Muscle synergies involved in preparation to a step made under the self-paced and reaction time instructions. Clin Neurophysiol 117:41–56

    Article  PubMed  Google Scholar 

  • Wang Y, Asaka T, Zatsiorsky VM, Latash ML (2006b) Muscle synergies during voluntary body sway: combining across-trials and within-a-trial analyses. Exp Brain Res 174(4):679–693

    Article  PubMed  Google Scholar 

  • Wang Y, Shapkova EY, Siwasakunrat S, Zatsiorsky VM, Latash ML (2007) Stepping from a narrow support. J Electromyogr Kines 17(4):462–472

    Google Scholar 

  • Woollacott M, Inglin B, Manchester D (1988) Response preparation and posture control. Neuromuscular changes in the older adult. Ann NY Acad Sci 515:42–53

    Google Scholar 

  • Zatsiorsky VM (1966) Motor Abilities of Athletes. Moscow: Fizkul’tura i Sport

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Acknowledgments

This work was supported in part by the Meiji Yasuda Life Foundation of Health and Welfare and the Grant-in-Aid for Scientific Research (C) (21500461) from the Japan Society for the Promotion of Science.

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Authors and Affiliations

  1. Department of Health and Exercise Science, Tianjin University of Sport, 51 Weijin South Street, Hexi District, Tianjin, 300381, China

    Yun Wang

  2. Graduate School of Health Sciences, Hokkaido University, N12-W5, Kitaku, Sapporo, 060-0826, Japan

    Tadayoshi Asaka

  3. Institute of Sports and Health Science, 3-10-31, Kagamiyama, Higashi-hiroshima, Hiroshima, 739-0046, Japan

    Kazuhiko Watanabe

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  1. Yun Wang
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  2. Tadayoshi Asaka
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  3. Kazuhiko Watanabe
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Correspondence to Yun Wang.

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Wang, Y., Asaka, T. & Watanabe, K. Multi-muscle synergies in elderly individuals: preparation to a step made under the self-paced and reaction time instructions. Exp Brain Res 226, 463–472 (2013). https://doi.org/10.1007/s00221-013-3449-9

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  • DOI: https://doi.org/10.1007/s00221-013-3449-9

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