Control of Head Stability and Gaze during Locomotion in Normal Subjects and Patients with Deficient Vestibular Function

King, Osric S.; Seidman, Scott H.; Leigh, R. John

doi:10.1093/acprof:oso/9780195068207.003.0091

Cited by 18 publications

(7 citation statements)

References 1,558 publications

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“…The mean values of maximum head rotation velocities in infants (around 50 degrees/ s and up to 180 degrees/s) were near to those observed in adults during running (Grossman, Leigh, Bruce, Huebner, & Lanska, 1989;King et al, 1992;Pozzo et al, 1990). At those head rotational velocities in the sagittal plane, found that peak gaze velocity ranged up to 9 degrees/s.…”

Section: Sensory Integration During Walking Optimized Through Head Stsupporting

confidence: 44%

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Acquisition of upper body stability during walking in toddlers

Ledebt

Bril

2000

Dev. Psychobiol.

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Section: Sensory Integration During Walking Optimized Through Head Stsupporting

confidence: 44%

“…During locomotion, stability of the head reduces the range of stimuli with which the vestibuloocular reflex must cope. Indeed, during walking, the peak head velocities in horizontal, vertical, and roll planes are generally constrained below the velocity saturation of the vestibulo -ocular reflex (King, Seidman, & Leigh, 1992).…”

Section: Introductionmentioning

confidence: 99%

Acquisition of upper body stability during walking in toddlers

Ledebt

Bril

2000

Dev. Psychobiol.

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“…Diese Fre quenzen sind weit unter denen, die in den meisten akti ven und passiven Kopfbewegungen in Alltagssituationen vorhanden sind, die Werte bis zu 6 Hz erreichen können. Während des Laufens kann die Frequenz der Kopfrota tion sogar Werte bis 8 Hz erreichen, mit Spitzenwerten bis zu 15 Hz [4,5], In diesem Frequenzbereich wird der Blick prinzipiell durch den VOR kontrolliert, wogegen im niedrigeren Frequenzbereich das visuelle System auch einen grossen Einfluss hat [6][7][8][9]. Deshalb ist man bemüht, Tests einzuführen, die den VOR bei einem höheren Fre quenzniveau messen können.…”

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Quantifizierung des vestibulookulären Reflexes während aktiver und passiver Kopfrotation

Meulenbroeks¹,

Kingma²,

Manni³

1994

Otorhinolaryngol Nova

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Seit EinfÜhrung des Rotationstestes fÜr die klinische vestibulÄre Analyse durch BÁrÁny (1907) wurden zahlreiche Versuche unternommen, um Rotationstests zu entwickeln, die in der Lage sind, Über den vestibulookulÄren Reflex (VOR) quantitative Informationen zu erhalten. Die meisten klinischen Rotationstests werden mit einer Oszillationsfrequenz bis 0,5 Hz durchgefÜhrt, obwohl Kopfbewegungen wÄhrend AktivitÄten im tÄglichen Leben Werte bis 8 Hz erreichen kÖnnen. Diese Studie hat die VOR-Charakteristika von aktiven gegenÜber passiven hochfrequenten Kopfrotation en bis zu 6 Hz in jungen, gesunden Probanden verglichen. WÄhrend der aktiven Kopfrotation blieb der VerstÄrkungsfaktor 1 nahezu einheitlich, und ein geringes Vorauseilen der Phasen im gesamten Frequenzbereich war vorhanden. Doch erreichte nicht jeder Proband 6 Hz. WÄhrend der passiven Kopfrotation, die durch einen computergesteuerten KopfschÜttler erreicht wurde, fiel der VerstÄrkungsfaktor auf 0,82 bei 6 Hz und die Phasenverschiebung blieb bei 0°. Die vorliegende Arbeit hat ihren Schwerpunkt in der Quantifizierung des VOR wÄhrend aktiver und passiver hochfrequenter Kopfrotation in verschiedenen Patientengruppen, die unter Schwindel leiden. Damit hoffen wir, zwischen Patienten und normalen Probanden durch einen der oben beschriebenen Tests unterscheiden zu kÖnnen. Besonders die aktive Kopfrotation ist eine billige und einfach durchfÜhrbare Methode in der klinischen Routine.

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“…24 The peripheral vestibular system senses head movements and responds to high-frequency head oscillations that occur during walking. 25–26 Vestibular information is also used to stabilize the head and trunk and serves both a postural and gaze stability purpose. 27–28 Previous studies showed that individuals with bilateral vestibular loss were less able to coordinate head rotation and head translation during walking, possibly due to impairment of the vestibulo-collic reflex.…”

Section: Discussionmentioning

confidence: 99%

Age-Related Imbalance Is Associated With Slower Walking Speed: An Analysis From the National Health and Nutrition Examination Survey

Xie

Liu

Anson

et al. 2017

Journal of Geriatric Physical Therapy

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Background and purpose Walking speed is an important dimension of gait function and is known to decline with age. Gait function is a process of dynamic balance and motor control that relies on multiple sensory inputs (e.g. visual, proprioceptive and vestibular) and motor outputs. These sensory and motor physiologic systems also play a role in static postural control, which has been shown to decline with age. In this study, we evaluated whether imbalance that occurs as part of healthy aging is associated with slower walking speed in a nationally-representative sample of older adults. Methods We performed a cross-sectional analysis of the previously collected1999–2002 National Health and Nutrition Examination Survey (NHANES) data to evaluate whether age-related imbalance is associated with slower walking speed in older adults aged 50 to 85 (n=2,116). Balance was assessed on a pass/fail basis during a challenging postural task—Condition 4 of the modified Romberg test, and walking speed was determined using a 20-feet (6.10 m) timed walk. Multivariable linear regression was used to evaluate the association between imbalance and walking speed, adjusting for demographic and health-related covariates. A structural equation model was developed to estimate the extent to which imbalance mediates the association between age and slower walking speed. Results In the unadjusted regression model, inability to perform the NHANES balance task was significantly associated with 0.10 m/s slower walking speed (95% confidence interval [CI]: −0.13, −0.07; p<0.01). In the multivariable regression analysis, inability to perform the balance task was significantly associated with 0.06 m/s slower walking speed (95% CI: −0.09, −0.03; p<0.01), an effect size equivalent to 12 years of age. The structural equation model estimated that age-related imbalance mediates 12.2% of the association between age and slower walking speed in older adults. Conclusion In a nationally-representative sample, age-related balance limitation was associated with slower walking speed. Balance impairment may lead to walking speed declines. Additionally, reduced static postural control and dynamic walking speed that occur with aging may share common etiologic origins, including the decline in visual, proprioceptive, and vestibular sensory and motor functions.

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Control of Head Stability and Gaze during Locomotion in Normal Subjects and Patients with Deficient Vestibular Function

Cited by 18 publications

References 1,558 publications

Acquisition of upper body stability during walking in toddlers

Acquisition of upper body stability during walking in toddlers

Quantifizierung des vestibulookulären Reflexes während aktiver und passiver Kopfrotation

Age-Related Imbalance Is Associated With Slower Walking Speed: An Analysis From the National Health and Nutrition Examination Survey

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