2015
DOI: 10.14814/phy2.12247
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Adaptation to large-magnitude treadmill-based perturbations: improvements in reactive balance response

Abstract: We aimed to examine the trial-to-trial changes in the reactive balance response to large magnitude slip-like treadmill perturbations in stance and whether the acquired adaptive changes could be appropriately scaled to a higher intensity perturbation. Seventeen young adults experienced 15 slips for training on level I intensity. Pre- and post-training slips were delivered at a higher intensity (20% > level I). Pre- and post-slip onset stability (at liftoff and touchdown of stepping limb) was measured as the sho… Show more

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Cited by 51 publications
(60 citation statements)
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References 53 publications
(123 reference statements)
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“…It is not yet clear how much perturbation magnitude impacts motor learning and retention. In young adults, exposure to smaller‐magnitude perturbations can improve stability control after larger‐magnitude perturbations 49. However, it has also been shown that younger adults can recover more effectively from an overground slip after high‐, rather than low‐, magnitude perturbation experience 50.…”
Section: Resultsmentioning
confidence: 99%
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“…It is not yet clear how much perturbation magnitude impacts motor learning and retention. In young adults, exposure to smaller‐magnitude perturbations can improve stability control after larger‐magnitude perturbations 49. However, it has also been shown that younger adults can recover more effectively from an overground slip after high‐, rather than low‐, magnitude perturbation experience 50.…”
Section: Resultsmentioning
confidence: 99%
“…In young adults, exposure to smallermagnitude perturbations can improve stability control after larger-magnitude perturbations. 49 However, it has also been shown that younger adults can recover more effectively from an overground slip after high-, rather than low-, magnitude perturbation experience. 50 Given the mixed evidence in young adults, and the benefits of both approaches shown in older adults, selecting perturbation magnitudes that are safe and tolerable while still challenging for the participant appears to be a reasonable choice for clinical applications.…”
Section: Perturbation Magnitudesmentioning
confidence: 99%
“…O teste de transferência para maior velocidade avaliou a generalização de respostas posturais e indicou a capacidade de reagir a perturbações de velocidade mais alta do que aquelas experimentadas durante a prática. Esta capacidade de generalização a situações não-treinadas foi relatada em estudo prévio com treinamento perturbatório de sessão única em esteira, ao apresentar ganhos dimensionados para perturbação de intensidade 20% maior do que a treinada (8).…”
Section: Treinabilidade De Respostas Posturais Reativasunclassified
“…O treinamento de respostas posturais reativas por perturbações é um paradigma inovador para prevenir quedas e tem sido alvo de estudos que avaliam a capacidade de adaptação do sistema de controle postural em jovens saudáveis. Neste paradigma, os indivíduos geralmente são expostos a uma série de perturbações da postura quieta por plataforma móvel (1)(2)(3)(4) ou durante marcha em esteira (5)(6)(7)(8). As perturbações podem ser aplicadas a partir de sequências com baixa interferência contextual (prática repetitiva) ou com alta interferência contextual (prática aleatória).…”
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