DC 欄位 | 值 | 語言 |
dc.contributor.author | 柴惠敏 | zh_TW |
dc.creator | 柴惠敏 | zh_TW |
dc.date | 2002 | zh_TW |
dc.date.accessioned | 2006-07-26T04:08:00Z | - |
dc.date.accessioned | 2018-07-08T16:38:31Z | - |
dc.date.available | 2006-07-26T04:08:00Z | - |
dc.date.available | 2018-07-08T16:38:31Z | - |
dc.date.issued | 2002 | - |
dc.identifier | 902314B002394 | zh_TW |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/25620 | - |
dc.description.abstract | 穩定極限為人體直立時,上身偏離
正中位置,尚能維持平衡的最大極限,
與下半身肌肉所能提供的預期性姿勢
調整有關。因此本研究的主要目標是針
對維持平衡的預期性姿勢調整肌群施
以不同組合的神經肌肉電刺激,以探討
其對人體坐姿動態穩定極限之影響,藉
以瞭解動態坐姿平衡的機轉。
本研究之研究設計為利用三組不
同的電刺激方式,以探討不同電刺激下
對動態穩定極限的影響。三組電刺激方
式為小腿前後側肌群、大腿前後側肌
群、小腿前後側肌群+大腿前後側肌群,
其結果將與無刺激時的動態穩定極限做
比較。動態穩定極限以功能性前伸距離
及人體壓力中心偏離度來評估。
結果發現無論是使用哪種電刺激
的方式,均不會影響功能性前伸距離或
人體壓力中心之偏離度,表示電刺激健
康人的姿勢肌群無法改變其動態穩定極
限。探討可能的原因為(一)人數不足,
造成標準差較大之故,(二)電刺激量不
足以造成強直性收縮,因而改變動態穩
定極限不大,(三)動態穩定極限有所謂
的「天花板效應(ceiling effect)」,本
研究使用健康年輕人為受試者,其動態
穩定極限已達其極限,故無法施以外在
刺激而增加其能力。除增加個案數來確
定其確實沒有變化外,未來研究將朝向
對麻痺型肌肉、退化性肌肉等電刺激、
或使用不同頻率或波長的神經肌肉電刺
激,來深入瞭解動態穩定極限之機轉。 | zh_TW |
dc.description.abstract | Dynamic stability limit is the farthest
distance where the center of body mass
can approach during a dynamic task. It
has been reported highly correlated with
the anticipatory postural adjustment. The
purposes of this research were to
investigate the effect of neuromaucular
stimulation on the dynamic stability limit
in a forward reach task.
Twenty healthy volunteers were
recruited to performed seated reach
movement tasks in different conditions.
The conditions included no sitmulation,
stimulating both the tibialis anterior and
the gastrocnemius, stimulating both the
quadriceps and hamstrings, and
stimulating all of those 4 muscles.
Kinematic data collected by Vicon 250 and
processed using a self-programmed
LabVIEW program. The seated
functional reach distances were compared
for each condition using ANOVA with
repeated measures. Kinetic data
collected by 2 AMTI force platforms were
processed using a LabVIEW program.
The excursion of the center of pressure
were compared for each condition using
ANOVA with repeated measures. The
significant level was set at α=0.05.
Results revealed that there was no
statistically significance in either the
seated functional reach distance or the
excursion of the center of pressure among
different neuromuscular conditions. The
possible explanations were 1)small sample
size, 2) insufficient electric current, 3) the
ceiling effect of the dynamic stability limit.
Future studies would direct to investigate
the mechanism of seated dynamic stability
limit using larger sample size and using
different types of stimulation. | en |
dc.format | application/pdf | zh_TW |
dc.format.extent | 169489 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language | zh-TW | zh_TW |
dc.language.iso | zh_TW | - |
dc.publisher | 臺北市:國立臺灣大學醫學院物理治療學系暨研究所 | zh_TW |
dc.rights | 國立臺灣大學醫學院物理治療學系暨研究所 | zh_TW |
dc.title | 行政院國家科學委員會專題研究計畫成果報告:脊髓損傷者的動態平衡增進系統之研究 | zh_TW |
dc.type | journal article | en |
dc.identifier.uri.fulltext | http://ntur.lib.ntu.edu.tw/bitstream/246246/25620/1/902314B002394.pdf | - |
dc.coverage | 計畫年度:90;起迄日期:2001-08-01/2002-07-31 | zh_TW |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.languageiso639-1 | zh_TW | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.fulltext | with fulltext | - |
顯示於: | 物理治療學系所
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