Abstract:
:Stability is defined by the ability to return to the initial (or unperturbed) state following a perturbation and hence can be assessed by quantifying the post-perturbation response. This response may be divided into two phases: an initial passive response phase, dependent upon both the steady state of the system and the system's intrinsic mechanical properties; and a recovery phase, dependent upon active control and reflexes. These two phases overlap and interact with each other. Whole body vibration (WBV) is assumed to influence neuro-sensory functions and perhaps both response stages. The current study observed the effect of WBV on several novel response factors that quantify the two phases in response to an external perturbation. The results indicate a significant effect of vibration exposure on: (1) the normalized maximum distance traveled by center of pressure (COP) from the neutral seated posture, and (2) the normalized time to maximum distance (τ), such that B and τ increased after WBV exposure and decreased after sitting without WBV. These changes may be indicative of passive visco-elastic changes caused by WBV exposure on the spinal tissues which has been indicated as a creep deformation of tissues post-exposure. This change may make the spine vulnerable to injury. Similar trends were noticed in the variables calculated from center of mass data.
journal_name
Hum Mov Scijournal_title
Human movement scienceauthors
Arora N,Graham RB,Grenier SGdoi
10.1016/j.humov.2014.11.014subject
Has Abstractpub_date
2015-04-01 00:00:00pages
77-88eissn
0167-9457issn
1872-7646pii
S0167-9457(14)00212-7journal_volume
40pub_type
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journal_title:Human movement science
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doi:10.1016/j.humov.2013.10.007
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pub_type: 杂志文章,评审
doi:10.1016/j.humov.2009.11.002
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doi:10.1016/j.humov.2019.01.008
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pub_type: 杂志文章,评审
doi:10.1016/j.humov.2010.07.007
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pub_type: 杂志文章,多中心研究,随机对照试验
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