The influence of an auditory–memory attention-demanding task on postural control in blind persons

Melzer, Itshak; Damry, Elad; Landau, Anat; Yagev, Ronit

doi:10.1016/j.clinbiomech.2010.11.008

Cited by 19 publications

(17 citation statements)

References 27 publications

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“…The literature developed numerous researches that showed significant roles of the cognitive interference in different sensory and postural conditions of standing. Majority of them examined quiet or perturbed standing with cognitive loads (Casteran et al 2016, Melzer et al 2011, Schmid et al 2007. It seemed that standing on an unstable platform is per se a difficult task for the CNS so that addition of the cognitive interference may be underrated by the other difficulties.…”

Section: Discussionmentioning

confidence: 99%

Effects of postural and cognitive difficulty levels on the standing of healthy young males on an unstable platform

Oliaei¹,

Ashtiani²,

Azma³

et al. 2018

Acta Neurobiologiae Experimentalis

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Standing on an unstable platform requires continuous effort of the neuro-musculoskeletal system. The aim of the present study is to evaluate the ability to remain standing on an unstable platform at different levels of postural and cognitive difficulty. Healthy young males stood in the sagittal plane on an unstable platform supported by a pair of springs with modifiable stiffness. The balance test also assessed different levels of vision and cognitive function. Linear and nonlinear metrics of standing, based on motion captured kinematic data, were assessed to analyze the stability of standing. Results showed that vision plays a significant role in maintaining balance in terms of linear metrics. Elimination of visual feedback changed the direction of body sway and increased standing instability. Placement of low stiffness springs led to unstable standing. The cognitive dual task, however, had no effect on the stability metrics and merely could be revealed in the simplest test condition. Standing on an unstable platform was closely related to visual feedback and decreasing the spring stiffness significantly reduced stability. The roles of cognitive involvement were subdued by increasing the postural difficulty in standing on an unstable platform.

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Section: Discussionmentioning

confidence: 99%

Effects of postural and cognitive difficulty levels on the standing of healthy young males on an unstable platform

Oliaei¹,

Ashtiani²,

Azma³

et al. 2018

Acta Neurobiologiae Experimentalis

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“…In other words, it is generally believed that individuals with visual impairment happen to hone better auditory skills and those with hearing loss are considered to have more developed visual skills than normally developing peers in order to compensate for the relevant loss. Although there are some studies supporting this view for visually impaired individuals (Melzer et al, 2011), there is no evidence to generalize this perception for people who are hard of hearing. Therefore, one of the reasons for designing memory studies of individuals with hearing loss is the endeavor to identify trends in the validity of sensory compensation approaches (Parasnis et al, 1996).…”

Section: Introductionmentioning

confidence: 98%

Content analysis of memory and memory-related research studies on children with hearing loss

Doğan¹,

Hasanoğlu²

2016

Educ. Res. Rev.

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Memory plays a profound role in explaining language development, academic learning, and learning disabilities. Even though there is a large body of research on language development, literacy skills, other academic skills, and intellectual characteristics of children with hearing loss, there is no holistic study on their memory processes. Accordingly, the aim of this study is to examine memory-related research on children with hearing loss (CHL). In order to distill methodological and topical trends of those studies so as to unfold relevant research needs. In this research, content analysis method was used to analyze 25 quantitative-empirical studies on memory of children below 18 years. Majority of the research studies grouped normal-hearing children as the norm group. Participants with hearing loss were quite heterogeneous in nature. Causal-comparative and correlational designs were jointly used most frequently as the research model, and assessment was based on multi-measure paradigms. Noteworthy popular topical trends include memory of children using verbal language and cochlear implants; the relation of memory to language development and literacy skills, temporary memory processes, and memory of children attending inclusive classes. A significant conclusion of the current study is that topical trends filtered from the international literature indicate the research need of our country. Furthermore, results of the analysis revealed that taking memory processes into account, especially during the assessment of hard-of-hearing children may contribute drastically to the holistic nature of assessment.

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“…The contribution of the visual, vestibular, and somatosensory systems in quiet standing is well described in the literature 3,4 and the objective method most often used to evaluate body stability is platform stabilometry, also known as posturography 1,2 . This technique measures the displacement of the center of pressure (CP), which is the spatial coordinate of the vertical ground reaction force.…”

Section: Introductionmentioning

confidence: 99%

Alinhamento articular de membros inferiores e controle postural em idosas

Mainenti

Rodrigues

Sousa

et al. 2014

Rev. Bras. Cineantropom. Desempenho Hum.

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-The aim of this study was to test whether quiet stance body sway is associated with ankle and knee joint angles in elderly women. Joint angles were measured using a manual goniometer and body sway was assessed using a force platform and four postural tasks with a combination of feet positions and eye condition. The sample (N = 58) showed the following angle values: 102 (100-104) for the tibiotarsal joint, 176 (174-180) for the subtalar joint, 184 (181-187) for knee flexion-extension, and 13 (10-15) for the Q-angle. Q-angle was significantly correlated (p < 0.05) with center of foot pressure (CP) displacement area (r = 0.36), anteroposterior (SDy, r = 0.34) and lateral (SDx, r = 0.31) CP standard deviation, and anteroposterior CP range (r = 0.38) during the closed base, eyes opened trial (CBEO). The valgus group showed statistically higher values than the normal and varus groups for SDy (0.56 vs. 0.52 and 0.46 mm; p = 0.02), SDx (0.55 vs. 0.49 and 0.36 mm; p = 0.02) and anteroposterior range (3.32 vs. 2.78 and 2.38 mm; p = 0.01), CBEO. The displacement velocity of the CP was significantly higher for the asymmetric than the symmetric Q-angle group (8.0 vs. 5.3 mm/s -closed base, eyes closed trial). Knee alignment was correlated with measures of body sway in elderly women, but ankle alignment showed no correlation. Knee morphology should be considered an associated factor for quiet stance postural control. Key words: Aging; Ankle joint; Genu valgus; Genu varus; Knee joint; Postural balance. (SDy, r = 0,34) e lateral (SDx, r = 0,31) SDy (0,56 vs. 0,52 and 0,46 mm; p = 0,02), SDx (0,55 vs. 0,49 and 0,36 mm; p = 0,02) e amplitude anteroposterior (3,32 vs. 2,78 and 2,38 mm; p = 0,01) Resumo -O objetivo do estudo foi verificar se a oscilação corporal na postura quieta está associada aos ângulos articulares de tornozelo e joelho em idosas. Os ângulos foram medidos por um goniômetro manual e a oscilação corporal foi obtida por uma plataforma de força em quatro situações (combinando posição dos pés e condição visual). A amostra (N = 58) apresentou os seguintes valores angulares: 102 (100-104) para o tibiotársico, 176 (174-180) para o subtalar, 184 (181-187) para flexão-extensão de joelho e 13 (10-15) para ângulo Q. O ângulo Q se correlacionou significativamente (p < 0,05) com a área do deslocamento do centro de pressão dos pés (CP) (r = 0,36); com o desvio padrão anteroposterior do CP; e com a amplitude anteroposterior do CP (r = 0,38), durante a condição de base fechada, olhos abertos (BFOA). O grupo valgo, quando comparado aos grupos normal e varo, apresentou valores estatisticamente maiores de

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The influence of an auditory–memory attention-demanding task on postural control in blind persons

Cited by 19 publications

References 27 publications

Effects of postural and cognitive difficulty levels on the standing of healthy young males on an unstable platform

Effects of postural and cognitive difficulty levels on the standing of healthy young males on an unstable platform

Content analysis of memory and memory-related research studies on children with hearing loss

Alinhamento articular de membros inferiores e controle postural em idosas

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