Search Results

You are looking at 1 - 10 of 26 items for :

  • "sensorimotor integration" x
  • All content x
Clear All
Restricted access

Christopher A. Knight, Adam R. Marmon, and Dhiraj H. Poojari

Subjects learned to produce brief isometric force pulses that were 10% of their maximal voluntary contraction (MVC) force. Subjects became proficient at performing sets of 10 pulses within boundaries of 8–12% MVC, with visual feedback and without (kinesthetic sense). In both the control (Con, n = 10) and experimental (Exp, n = 20) groups, subjects performed two sets of 10 kinesthetically guided pulses. Subjects then either performed a 10-s MVC (Exp) or remained at rest (Con) between sets. Following the MVC, Exp subjects had force errors of +30%, whereas performance was maintained in Con. There was evidence for both muscular and neural contributions to these errors. Postactivation potentiation resulted in a 40% gain in muscle contractility (p = .003), and there was a 26% increase in the neural stimulation of muscle (p = .014). Multiple regression indicated that the change in neural input had a stronger relationship with force errors than the increased contractility.

Restricted access

Nicole Wenderoth, Otmar Bock, and Rainer Krohn

The present study investigates whether the acquisition of a rhythmical bimanual coordination pattern is influenced by existing intrinsic coordination tendencies. Participants were required to learn 1 of 5 new coordination patterns, whose relative phase ϕ was either 36, 60, or 90° away from the 0° and 180° attractors, respectively. They performed 35 trials, each consisting of 2 conditions: In the augmented feedback condition, continuous visual guidance was provided, while in the normal feedback condition participants were required to rely on normal vision of their arms. We found that all to-be-learned patterns were performed with higher accuracy in the visually guided condition, whereas interference with pre-existing coordination tendencies was more pronounced in the normal vision condition. Comparing the learning progress of the 5 groups, we found for patterns close to anti-phase, a smaller improvement and significantly larger phase errors than for patterns close to in-phase. This indicates that the acquisition of a new phase relationship is influenced by existing attractors and that the 180º attractor interfered more strongly with the to-be-learned pattern than the 0º attractor.

Restricted access

Alison R. Oates, Aaron Awdhan, Catherine Arnold, Joyce Fung, and Joel L. Lanovaz

recent review Oates et al., 2017 , for more detail). During the aging process, cutaneous and proprioceptive sensation decline due to structural changes in sensory organs and the central nervous system ( Shaffer & Therapy, 2007 ). In addition, sensorimotor integration abilities decrease leading to

Restricted access

Stephen M. Glass, Christopher K. Rhea, Matthew W. Wittstein, Scott E. Ross, John P. Florian, and F.J. Haran

– 49 . PubMed ID: 28259038 doi:10.1016/j.gaitpost.2017.02.022 10.1016/j.gaitpost.2017.02.022 28259038 39. Peterka RJ . Sensorimotor integration in human postural control . J Neurophysiol . 2002 ; 88 ( 3 ): 1097 – 1118 . PubMed ID: 12205132 doi:10.1152/jn.2002.88.3.1097 12205132 10.1152/jn.2002

Restricted access

Nathan Morelli, Nicholas R. Heebner, Courtney J. DeFeo, and Matthew C. Hoch

. PubMed ID: 32176875 doi:10.1088/1361-6579/ab8050 10.1088/1361-6579/ab8050 Peterka , R.J. ( 2002 ). Sensorimotor integration in human postural control . Journal of Neurophysiology, 88 ( 3 ), 1097 – 1118 . PubMed ID: 12205132 doi:10.1152/jn.2002.88.3.1097 10.1152/jn.2002.88.3.1097 Peterka , R

Restricted access

Timothy A. Hanke, Bruce Kay, Michael Turvey, and David Tiberio

-related changes in balance control system: Initiation of stepping . Clinical Biomechanics, 8 , 179 – 184 . PubMed doi:10.1016/0268-0033(93)90012-7 10.1016/0268-0033(93)90012-7 Peterka , R.J. ( 2002 ). Sensorimotor integration in human postural control . Journal of Neurophysiology, 88 , 1097 – 1118

Restricted access

James R. Chagdes, Joshua J. Liddy, Amanda J. Arnold, Laura J. Claxton, and Jeffrey M. Haddad

, Leung, Ryu, & O’Brien, 2014 ), age-related changes in postural stability ( Bucci et al., 2017 ; Harbourne, Ryalls, & Stergiou, 2014 ), and the development of sensorimotor integration ( da Costa, Pavao, Visicato, de Campos, & Rocha, 2019 ; Kyvelidou & Stergiou, 2018 ; Travers, Mason, Gruben, Dean

Restricted access

Fabiana Rodrigues Osti, Caroline Ribeiro de Souza, and Luis Augusto Teixeira

with increased body sway on the board when balancing on water. Additionally, improved balance stability in the probing no-vision conditions indicates that generalization took place not only in the postural response strategies but also in sensorimotor integration. In particular, the probing tiptoes

Restricted access

Carly C. Sacco, Erin M. Gaffney, and Jesse C. Dean

, Hospod V , Roll JP , Aimonetti JM . Fusimotor drive may adjust muscle spindle feedback to task requirements in humans . J Neurophysiol . 2009 ; 101 : 633 – 640 . doi:10.1152/jn.91041.2008 10.1152/jn.91041.2008 19036863 44. Peterka RJ . Sensorimotor integration in human postural control . J

Restricted access

Anat V. Lubetzky, Daphna Harel, Helene Darmanin, and Ken Perlin

– 2918 . PubMed doi:10.1519/JSC.0000000000000935 10.1519/JSC.0000000000000935 Peterka , R.J. ( 2002 ). Sensorimotor integration in human postural control . Journal of Neurophysiology, 88 ( 3 ), 1097 – 1118 . PubMed 10.1152/jn.2002.88.3.1097 Polastri , P.F. , & Barela , J.A. ( 2013