Results 251 to 260 of about 32,301 (303)
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Body Sway Stabilization in Human Posture
Acta Oto-Laryngologica, 1990Electromyographic (emg) responses and joint movements of the leg were analysed in subjects standing with eyes closed on a sinusoidally moving treadmill (0.16 Hz or 0.33 Hz, amplitude 33 cm). Activity in antagonistic leg muscles was reciprocally modulated, with a predominant gastrocnemius activation during deceleration of forward movement and tibialis ...
M, Kleiber, G A, Horstmann, V, Dietz
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Arterial baroreflex modulation influences postural sway
Clinical Autonomic Research, 2010Although considered mainly a random function, postural sway is influenced by physiological factors such as respiration. A direct effect of the autonomic nervous system (ANS) on posture has never been demonstrated. To test this hypothesis, we used a pure motion-independent autonomic stimulus (neck suction) to modulate the carotid baroreceptors on a ...
BERNARDI, LUCIANO +4 more
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Modular control of mediolateral postural sway
2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012Is voluntary motor control of mediolateral rhythmic sway ruled by modular organization? Answering this question has potential implications in diagnosis and rehabilitation of neurologically impairments. Superficial EMG and computerized dynamic posturography has been used in this study to investigate modular control of six healthy subjects.
D, Torricelli +7 more
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Respiratory components of human postural sway
Neuroscience Letters, 1981The effects of respiration on postural sway in normal human subjects was studied using averaging and spectral techniques. During voluntarily paced respiration a substantial proportion of sway was found to result from respiratory activity. The magnitude of the respiratory contribution to sway was approximately constant over the normal range of ...
I W, Hunter, R E, Kearney
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Aging and Postural Sway in Women
Journal of Gerontology, 1975The effects of aging on postural sway in upright and forward lean stance were investigated. Postural sway was measured on a center of gravity apparatus using two age groups of female subjects 20 to 30 years old and 70 to 80 years old. The older adults demonstrated significantly larger sway areas than the young adults in both stance positions.
B R, Hasselkus, G M, Shambes
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Time-frequency analysis of postural sway
Journal of Biomechanics, 1995Postural sway during quiet stance has been used to characterize the postural control system. Most studies have used center of pressure (COP) measurements and have assumed stationarity, however, recent research has indicated that COP is not stationary.
T, Schumann +4 more
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Postural Sway during Quiet Standing
2021Postural sway refers to the fluctuations in the horizontal movements of the center of mass (COM) while a human stands quietly. The fluctuations in the center of pressure (COP) measured with a force platform provide a measure of the neuromuscular response to the motions of the COM.
Tamás Insperger, John Milton
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A Biofeedback Study of Postural Sway
Psychiatry and Clinical Neurosciences, 1976An experiment was performed to control postural sway under auditory and visual feedback signals using a new apparatus. The subjects of 52 healthy high school girls were divided into 13 small groups. Each small group had four subjects who were assigned to one of the following four groups; 1) visual feedback group, 2) auditory feedback group, 3) auditory
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Correlation dimension estimates of human postural sway
Human Movement Science, 2013Human postural sway during quiet standing demonstrates a complex structured dynamics, which has been studied by applying numerous methods, such as linear system identification methods, stochastic analysis, and nonlinear system dynamics tools. Although each of the methods applied revealed some particular features of the sway data none of them have ...
Senih, Gurses, Huseyin, Celik
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Instrumented Force Platform for Postural Sway Studies
IEEE Transactions on Biomedical Engineering, 1981A force platform has been developed, which is capable of measuring postural sway in humans in two orthogonal directions. For each direction, output data consist of total average sway in two frequency bands centered on 0.57 and 2.9 Hz. The device is suitable for use in research or in a clinical setting.
R S, Lakes +4 more
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