Reducing postural sway by manipulating the difficulty levels of a cognitive task and a balance task

Swan, Laurie; Otani, Hajime; Loubert, Peter V.

doi:10.1016/j.gaitpost.2006.11.201

Cited by 56 publications

(39 citation statements)

References 11 publications

(30 reference statements)

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“…It has been shown that performing cognitive tasks during COP recordings causes a decrease in postural sway [33,34], thereby showing the opposite effect to our pain related observations. This leaves conscious or unconscious pain avoidance strategies as a contributing factor for the increased COP excursions.…”

Section: Discussioncontrasting

confidence: 75%

On the relationship between pain intensity and postural sway in patients with non-specific neck pain

Ruhe

Fejer

Walker

2013

BMR

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Abstract. INTRODUCTION:Increased center of pressure excursions are well documented in patients with non-specific neck pain. While a linear relationship between pain intensity and postural sway has been described in low back pain patients, no such investigation has been conducted in adults with non-specific neck pain. METHODS: Seventy patients with non-specific neck pain and a matching number of healthy controls were enrolled. Center of pressure parameters were measured by three static bipedal standing tasks of 90 sec duration each with eyes closed on a force platform. The pain intensity was assessed by a numeric rating scale (NRS), an equal number of patients (n = 10) was enrolled per pain score. RESULTS:The results confirmed an increased postural sway in pain sufferers compared to healthy controls. In addition, a significant and linear increase in postural sway was observed with higher pain ratings. Statistically significant changes in sway were reached with an incremental change in NRS scores of two to three points. DISCUSSION AND CONCLUSIONS: Mean velocity and sway area are closely related to self-reported pain scores in neck pain patients. This relationship has implications for clinical applications such as an objective monitoring tool for patients under treatment or rehabilitation.

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Section: Discussioncontrasting

confidence: 75%

On the relationship between pain intensity and postural sway in patients with non-specific neck pain

Ruhe

Fejer

Walker

2013

BMR

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“…As a result of these changes in muscle recruitment, compensations may occur such as decreased stride length, excessive knee flexion in early swing and reduction of anterior displacement of the body, which affects balance during gait (Perry & Burnfield, 2006). The influence of cognitive task on postural control is more pronounced when the level of task complexity is high (Swan, Otani, & Loubert, 2007). In our study, the cognitive task performed while walking can be considered easy, this may have influenced the effect-size of the dual-task gait condition limiting our ability to identify significant differences.…”

Section: Discussionmentioning

confidence: 79%

Lower limb muscle coactivation levels in healthy younger and older adults during functional dual-task gait

Hallal

Marques

Vieira

et al. 2013

Motriz: rev. educ. fis.

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Abstract-The purpose of this study was to investigate the influence of daily cognitive task on stiffness of old and young female adults during the gait. The study included 17 physically active younger and 18 older women, with low risk of falls. The volunteers were asked to walk on the treadmill at two different gait conditions: normal gait and functional dual-task gait. The electromyographic signals were collected of the lower limb muscles. The percentage of coactivation for the tibialis anterior/gastrocnemius lateralis and tibialis anterior/soleus were significantly higher in elderly than in younger in the normal gait and dual-task gait. Our results suggest that the elderly have a greater stiffness in the ankle joint during gait normal and daily dual task gait. Thus, we conclude that challenging cognitively situations during the gait may increase the risk of falls in this population. Keywords: elderly, gait, coactivation, fallsResumo-"Coativação muscular dos membros inferiores de jovens e idosas saudáveis durante marcha com dupla tarefa funcional." O objetivo deste estudo foi investigar a influência de uma tarefa cognitiva cotidiana sobre a coativação muscular de mulheres idosas e jovens durante a marcha. Participaram do estudo 17 mulheres jovens fisicamente ativas e 18 mulheres idosas com baixo risco de quedas. Os voluntários foram orientados a caminhar sobre uma esteira em duas diferentes condições de marcha: marcha normal e marcha com dupla-tarefa cotidiana. Os sinais eletromiográficos foram coletados dos músculos dos membros inferiores. A porcentagem de coativação para tibial anterior/gastrocnêmio lateral e tibial anterior/sóleo foram significativamente maiores em idosos do que em jovens na marcha normal e marcha com dupla-tarefa. Nossos resultados sugerem que os idosos tem maior coativação muscular no tornozelo durante a marcha normal e marcha com dupla tarefa cotidiana. Assim, nós concluimos que situações cognitivamente desafiadoras durante a marcha podem aumentar o risco de quedas em idosos. Palavras-chaves: idosos, marcha, coativação, quedasResumen-"Coactivación muscular del miembro inferior de jóvenes y ancianos saludables durante la marcha con doble tarea funcional." El objetivo de este estudio fue investigar la influencia de una tarea cognitiva diaria en la coactivación muscular en ancianos y jóvenes durante la marcha. Los participantes del estudio fueron 17 ancianos y 18 jóvenes físicamente activos con bajo riesgo de caídas. Los voluntarios caminaron sobre una cinta de correr en dos condiciones diferentes: la marcha normal y la marcha con doble tarea cotidiana. Las electromiografía se obtuvo de los músculos de las extremidades inferiores. El porcentaje de co-activación de los tibialis anterior/gastrocnemius lateralis and tibialis anterior /soleus fueron significativamente mayores en los ancianos que en los sujetos jóvenes durante la marcha normal y marcha con doble tarea. Nuestros resultados sugieren que los ancianos tienen un mayor coactivación muscular en el tobillo durante la marcha normal y marc...

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“…We choose for the Brooke spatial task because this task does not require motor activity that can interfere with postural control. However, task difficulty might have been different for younger and elderly subjects, particularly because the Brooks spatial tasks is strongly reliant on visual-spatial memory, and interference of a DT with postural control is not only age dependent, but also depends on task difficulty [8,22]. Indeed, young subject made hardly any faults on the DT whereas both elderly groups made significant more faults.…”

Section: Discussionmentioning

confidence: 99%

“…The DT consisted of the Brooks spatial matrix task [22]. While standing, subjects listened to a series of sentences that described the location of seven numbers in a 4 Â 4 grid.…”

Section: Methodsmentioning

confidence: 99%

Sports activities are reflected in the local stability and regularity of body sway: Older ice-skaters have better postural control than inactive elderly

Lamoth

Heuvelen

2012

Gait & Posture

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Reducing postural sway by manipulating the difficulty levels of a cognitive task and a balance task

Cited by 56 publications

References 11 publications

On the relationship between pain intensity and postural sway in patients with non-specific neck pain

On the relationship between pain intensity and postural sway in patients with non-specific neck pain

Lower limb muscle coactivation levels in healthy younger and older adults during functional dual-task gait

Sports activities are reflected in the local stability and regularity of body sway: Older ice-skaters have better postural control than inactive elderly

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