Reliability of the soleus H-reflex from supine to standing in young and elderly
Reliability of the soleus H-reflex from supine to standing in young and elderly
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DOI：
10.1016/j.clinph.2005.02.001
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发表时间：
2005-06-01
影响因子：
4.7
通讯作者：
Mynark, RG
中科院分区：
文献类型：
--
作者：
Mynark, RG
目的：最近的许多研究使用比目鱼肌H反射方法来检测与年龄相关的神经肌肉功能的变化。然而，这种方法的可靠性只在年轻人身上进行了测试。本研究的目的是评估青年和老年受试者在仰卧和站立状态下比目鱼肌H反射的试间信度。对于每个受试者，在每个姿势条件下收集了10个标准化的比目鱼肌H反射试验。计算前4.6、8和每组每个体位的10次试验的组内相关性。结果：在这项研究中，随着用于评估站立状态下老年人比目鱼肌H反射的试验数量的减少，可靠性下降最大。从使用10次试验改为使用4次试验，可靠性下降了8%。结论：由于老年人的姿势控制能力下降，应至少使用10次试验来评估站立或其他功能性负重条件下比目鱼肌的H反射特征。意义：使用少于10次试验可能会导致统计错误和对结果的误解增加。(C)2005年国际临床神经生理学联合会。爱思唯尔爱尔兰有限公司出版。版权所有。
Objective: Many recent studies have used the soleus H-reflex methodology to examine age-related changes in neuromuscular function. However, reliability of the method has only been tested in young adults. The purpose of this study was to evaluate the inter-trial reliability of the soleus H-reflex in both young and elderly subjects during supine and standing conditions.Methods: The experiment was carried out on 10 young and 10 elderly subjects. For each subject, 10 standardized soleus H-reflex trials were collected during each of the postural conditions. Intraclass correlations were calculated for the first 4. 6 8, and 10 trials for each group at each body position.Results: The largest decreases in reliability in this Study were observed with a decrease in the number of trials used to estimate the elderly soleus H-reflex during the standing condition. The change from using ten trials to using four trials led to an 8% decrease in reliability.Conclusions: Due to the decreased postural control ability in the elderly Population, Lit least ten trials should be used to estimate soleus H-reflex characteristics during standing or other functional weight-bearing conditions.Significance: Using fewer than 10 trials could lead to an increase in statistical errors and misinterpretation of results. (c) 2005 International Federation of Clinical Neurophysiology. Published by Elsevier Ireland Ltd. All rights reserved.