scholarly journals The postural response of normal dogs to sinusoidal displacement

1974 ◽  
Vol 243 (2) ◽  
pp. 287-307 ◽  
Author(s):  
John M. Brookhart ◽  
Richard E. Talbott
Keyword(s):  
Postural Response

An Emerging Postural Response: Is Control of the Hip Possible in the Newly Walking Child?

2004 ◽  
Vol 36 (2) ◽  
pp. 147-159 ◽  
Author(s):  
Maria Nida C. Roncesvalles ◽  
Marjorie H. Woollacott ◽  
Nicholas Brown ◽  
Jody L. Jensen
Keyword(s):  
Postural Response

A low-cost, portable system for the assessment of the postural response of wheelchair users to perturbations

1999 ◽  
Vol 7 (4) ◽  
pp. 435-442 ◽  
Author(s):  
D.G. Kamper ◽  
T.C. Adams ◽  
S.I. Reger ◽  
M. Parnianpour ◽  
K. Barin ◽  
...  
Keyword(s):  
Low Cost ◽  
Postural Response ◽  
Wheelchair Users ◽  
Portable System

3.9 The normal postural response to galvanic vestibularstimulation in the arm in standing

2005 ◽  
Vol 21 ◽  
pp. S15 ◽  
Author(s):  
J. Mcloughlin ◽  
M. Mockova ◽  
B.L. Day
Keyword(s):  
Postural Response

POSTURAL RESPONSE IN RELATION TO THE STANDING ON INCLINED SURFACES

1981 ◽  
pp. 307-310 ◽  
Author(s):  
V. Litvinenková ◽  
F. Hlavačka ◽  
G. Harangozo
Keyword(s):  
Postural Response ◽  
Inclined Surfaces

Interaction between acoustic startle and habituated neck postural responses in seated subjects

2007 ◽  
Vol 102 (4) ◽  
pp. 1574-1586 ◽  
Author(s):  
Jean-Sébastien Blouin ◽  
Gunter P. Siegmund ◽  
J. Timothy Inglis
Keyword(s):  
Startle Response ◽  
Acoustic Startle ◽  
Acoustic Startle Response ◽  
Neck Muscles ◽  
Whole Body ◽  
Neck Muscle ◽  
Postural Response ◽  
Root Mean Square Amplitude ◽  
Postural Responses ◽  
Spatial Changes

Postural and startle responses rapidly habituate with repeated exposures to the same stimulus, and the first exposure to a seated forward acceleration elicits a startle response in the neck muscles. Our goal was to examine how the acoustic startle response is integrated with the habituated neck postural response elicited by forward accelerations of seated subjects. In experiment 1, 14 subjects underwent 11 sequential forward accelerations followed by 5 additional sled accelerations combined with a startling tone (124-dB sound pressure level) initiated 18 ms after sled acceleration onset. During the acceleration-only trials, changes consistent with habituation occurred in the root-mean-square amplitude of the neck muscles and in the peak amplitude of five head and torso kinematic variables. The subsequent addition of the startling tone restored the amplitude of the neck muscles and four of the five kinematic variables but shortened onset of muscle activity by 9–12 ms. These shortened onset times were further explored in experiment 2, wherein 16 subjects underwent 11 acceleration-only trials followed by 15 combined acceleration-tone trials with interstimulus delays of 0, 13, 18, 23, and 28 ms. Onset times shortened further for the 0- and 13-ms delays but did not lengthen for the 23- and 28-ms delays. These temporal and spatial changes in EMG can be explained by a summation of the excitatory drive converging at or before the neck muscle motoneurons. The present observations suggest that habituation to repeated sled accelerations involves extinguishing the startle response and tuning the postural response to the whole body disturbance.

scholarly journals Evaluation of a Rehabilitation System for the Elderly in a Day Care Center

Information ◽  
2018 ◽  
Vol 10 (1) ◽  
pp. 3 ◽  
Author(s):  
Giuseppe Palestra ◽  
Mohamed Rebiai ◽  
Estelle Courtial ◽  
Dimitrios Koutsouris
Keyword(s):  
Physical Activity ◽  
Day Care ◽  
Elderly Population ◽  
Care Center ◽  
The Elderly ◽  
Postural Response ◽  
User Friendliness ◽  
Day Care Center ◽  
Depth Sensors ◽  
Rehabilitation System

This paper presents a rehabilitation system based on a customizable exergame protocol to prevent falls in the elderly population. The system is based on depth sensors and exergames. The experiments carried out with several seniors, in a day care center, make it possible to evaluate the usability and the efficiency of the system. The outcomes highlight the user-friendliness, the very good usability of the developed system and the significant enhancement of the elderly in maintaining a physical activity. The performance of the postural response is improved by an average of 80%.

Effects of Internal and External Attentional Focus on Postural Response to a Sliding Stance Surface

2019 ◽  
Vol 126 (3) ◽  
pp. 446-461 ◽  
Author(s):  
Hiroshi Kunimura ◽  
Masakazu Matsuoka ◽  
Naoki Hamada ◽  
Koichi Hiraoka
Keyword(s):  
Cognitive Activity ◽  
Attentional Focus ◽  
Upper Body ◽  
Body Sway ◽  
Support Surface ◽  
Postural Response ◽  
Postural Perturbation ◽  
Forward Displacement ◽  
External Focus ◽  
Internal Focus

The present study examined whether an internal or external attentional focus would affect participants’ feet-in-place balance response to postural stance perturbations. A movable platform automatically slid forward or backward while healthy participants stood on it and (a) performed no cognitive activity (control), (b) focused on the pelvis or upper body sway (internal focus), (c) memorized a number displayed immediately before the platform slid (external focus), or (d) kept the equilibrium of an unstable cylinder over the arm (external focus). The forward displacement of the pelvis induced by the platform sliding forward was smaller when participants focused on their pelvic sway, although such effect was absent when they focused on their upper body sway, indicating that the internal focus was effective for the postural response when attention was paid to the pelvic sway. Regarding an external attention focus, the forward displacement of the pelvis induced by the platform sliding forward was smaller when participants focused on the equilibrium of an unstable object over the arm, but this effect was absent when they focused on the number, indicating that an external focus was only effective when the unstable object focused upon was relevant to the equilibrium of one’s own body. No attentional intervention was effective during backward sliding of the support surface, indicating that central set for responding to postural perturbation depends on the direction of the postural perturbation.

Sign in / Sign up

Export Citation Format

Share Document