TY - JOUR
T1 - Postural sway and perceived comfort in pointing tasks
AU - Solnik, Stanislaw
AU - Pazin, Nemanja
AU - Coelho, Chase J.
AU - Rosenbaum, David A.
AU - Zatsiorsky, Vladimir M.
AU - Latash, Mark L.
N1 - Funding Information:
The study was in part supported by NIH grants NS-035032 and AR-048563 .
PY - 2014/5/21
Y1 - 2014/5/21
N2 - In this study, we explored relations between indices of postural sway and perceived comfort during pointing postures performed by standing participants. The participants stood on a force plate, grasped a pointer with the dominant (right) hand, and pointed to targets located at four positions and at two distances from the body. We quantified postural sway over 60-s intervals at each pointing posture, and found no effects of target location or distance on postural sway indices. In contrast, comfort ratings correlated significantly with indices of one of the sway components, trembling. Our observations support the hypothesis that rambling and trembling sway components involve different neurophysiological mechanisms. They also suggest that subjective perception of comfort may be more important than the actual posture for postural sway.
AB - In this study, we explored relations between indices of postural sway and perceived comfort during pointing postures performed by standing participants. The participants stood on a force plate, grasped a pointer with the dominant (right) hand, and pointed to targets located at four positions and at two distances from the body. We quantified postural sway over 60-s intervals at each pointing posture, and found no effects of target location or distance on postural sway indices. In contrast, comfort ratings correlated significantly with indices of one of the sway components, trembling. Our observations support the hypothesis that rambling and trembling sway components involve different neurophysiological mechanisms. They also suggest that subjective perception of comfort may be more important than the actual posture for postural sway.
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U2 - 10.1016/j.neulet.2014.03.034
DO - 10.1016/j.neulet.2014.03.034
M3 - Article
C2 - 24686189
AN - SCOPUS:84898904584
SN - 0304-3940
VL - 569
SP - 18
EP - 22
JO - Neuroscience letters
JF - Neuroscience letters
ER -