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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Additional Haptic Information Provided by Anchors Reduces Postural Sway in Young Adults Less Than Does Light Touch

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Autor(es):
Moraes, Renato [1] ; Bedo, Bruno L. S. [1] ; Santos, Luciana O. [1] ; Batistela, Rosangela A. [1] ; Santiago, Paulo R. P. [1] ; Mauerberg-deCastro, Eliane [2]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Sch Phys Educ & Sport Ribeirao Preto, Lab Biomech & Motor Control, Ribeirao Preto - Brazil
[2] Sao Paulo State Univ, Dept Phys Educ, Act & Percept Lab, Rio Claro - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: FRONTIERS IN NEUROSCIENCE; v. 12, JUN 5 2018.
Citações Web of Science: 4
Resumo

This study investigated the effect of adding haptic information to the control of posture, as well as comparing the effect of both the ``light touch{''} (LT) and ``anchor system{''} (AS) paradigms on postural sway. Additionally, it compared the effect of location and number of points of contact to the control of posture in young adults. The location consisted of using the anchors tied to the finger and held by the hands, and, for LT, the fingertip. For the number of points of contact, participants used two hands, and then separately the dominant hand, and the non-dominant hand, for both anchor and LT paradigms. Participants stood upright with feet-together and in tandem position while performing tasks that combined the use of anchors and LT, points of contact (hand grip and finger), and number of points of contact (two hands and one hand). In this study, the anchors consist of holding in each hand a flexible cable with the other end attached to the ground. The LT consists of slightly touching a rigid surface with the tip of the index finger. The results showed, first, that the anchors improved postural control less than did the LT. Second, they revealed that holding the anchors with the hands or with them tied to the fingertip resulted in a similar reduction in postural sway only in the tandem position. For the feet-together position, the anchors tied to the fingertip were ineffective. Similarly, the use of one or two hands did not affect the contribution of the anchors. However, using two hands in the LT condition was more effective than was one hand. Third, our results showed the presence of a temporal delay between force and center-of-pressure (COP) for the anchors, only in the AP direction with feet-together. In conclusion, overall, the anchors were less effective in reducing postural sway than was the LT. The anchors attached to fingertips were as effective as the hand-held anchors in the tandem position, yet ineffective during foot-together standing. Force-COP timing explains reduced postural sway with LT but not for the anchor; hence, exploratory and supra-postural components may be involved. (AU)

Processo FAPESP: 15/19997-0 - Adição de informação háptica para o controle da postura em adultos jovens e idosos (caidores e não caidores): análise comparativa dos paradigmas do toque leve e do sistema âncora
Beneficiário:Luciana Oliveira dos Santos
Linha de fomento: Bolsas no Brasil - Programa Capacitação - Treinamento Técnico
Processo FAPESP: 15/02404-7 - Adição de informação háptica para o controle da postura em adultos jovens e idosos (caidores e não caidores): análise comparativa dos paradigmas do toque leve e do sistema âncora
Beneficiário:Renato de Moraes
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 16/09653-5 - Adição de informação háptica para o controle da postura em adultos jovens e idosos (caidores e não caidores): análise comparativa dos paradigmas do toque leve e do sistema âncora
Beneficiário:Bruno Luiz de Souza Bedo
Linha de fomento: Bolsas no Brasil - Programa Capacitação - Treinamento Técnico