Test-retest reliability of the soleus H-reflex excitability measured during human walking

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Test-retest reliability of the soleus H-reflex excitability measured during human walking. / Simonsen, Erik B; Dyhre-Poulsen, Poul.

In: Human Movement Science, 2010.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Simonsen, EB & Dyhre-Poulsen, P 2010, 'Test-retest reliability of the soleus H-reflex excitability measured during human walking', Human Movement Science. https://doi.org/10.1016/j.humov.2010.02.009

APA

Simonsen, E. B., & Dyhre-Poulsen, P. (2010). Test-retest reliability of the soleus H-reflex excitability measured during human walking. Human Movement Science. https://doi.org/10.1016/j.humov.2010.02.009

Vancouver

Simonsen EB, Dyhre-Poulsen P. Test-retest reliability of the soleus H-reflex excitability measured during human walking. Human Movement Science. 2010. https://doi.org/10.1016/j.humov.2010.02.009

Author

Simonsen, Erik B ; Dyhre-Poulsen, Poul. / Test-retest reliability of the soleus H-reflex excitability measured during human walking. In: Human Movement Science. 2010.

Bibtex

@article{17fe93b0b41f11df825b000ea68e967b,

title = "Test-retest reliability of the soleus H-reflex excitability measured during human walking",

abstract = "The purpose of the study was to investigate with what accuracy the soleus H-reflex modulation and excitability could be measured during human walking on two occasions separated by days. The maximal M-wave (Mmax) was measured at rest in the standing position. During treadmill walking every stimulus elicited an M-wave of 25+/-10% of Mmax in the soleus muscle and a supra-maximal stimulus elicited a maximal M-wave 60ms after the first stimulus. Both Mmax during rest and during walking were later used for normalization. When normalized to resting Mmax, the peak reflex amplitude during walking was 5% lower on Day 2 than on Day 1 (p=.32). However, when the peak H-reflex was normalized to Mmax in every sweep, Day 2 showed a significant 15% lower amplitude (p=.037). The same pattern was found for the mean H-reflex. Spearman's Rho was .92 when normalized to resting Mmax but .88 when normalized to Mmax in every sweep. The Pearson product was used to identify one participant at a time on Day 1 among all seven participants on Day 2. For both normalization procedures 5 of 7 participants were identified by this test. Since 5 of 7 participants were recognized between days, it must be recommended to use 10-15 participants for training or intervention studies as far as the H-reflex pattern of modulation during movement is concerned.",

author = "Simonsen, {Erik B} and Poul Dyhre-Poulsen",

year = "2010",

doi = "10.1016/j.humov.2010.02.009",

language = "English",

journal = "Human Movement Science",

issn = "0167-9457",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Test-retest reliability of the soleus H-reflex excitability measured during human walking

AU - Simonsen, Erik B

AU - Dyhre-Poulsen, Poul

PY - 2010

Y1 - 2010

N2 - The purpose of the study was to investigate with what accuracy the soleus H-reflex modulation and excitability could be measured during human walking on two occasions separated by days. The maximal M-wave (Mmax) was measured at rest in the standing position. During treadmill walking every stimulus elicited an M-wave of 25+/-10% of Mmax in the soleus muscle and a supra-maximal stimulus elicited a maximal M-wave 60ms after the first stimulus. Both Mmax during rest and during walking were later used for normalization. When normalized to resting Mmax, the peak reflex amplitude during walking was 5% lower on Day 2 than on Day 1 (p=.32). However, when the peak H-reflex was normalized to Mmax in every sweep, Day 2 showed a significant 15% lower amplitude (p=.037). The same pattern was found for the mean H-reflex. Spearman's Rho was .92 when normalized to resting Mmax but .88 when normalized to Mmax in every sweep. The Pearson product was used to identify one participant at a time on Day 1 among all seven participants on Day 2. For both normalization procedures 5 of 7 participants were identified by this test. Since 5 of 7 participants were recognized between days, it must be recommended to use 10-15 participants for training or intervention studies as far as the H-reflex pattern of modulation during movement is concerned.

AB - The purpose of the study was to investigate with what accuracy the soleus H-reflex modulation and excitability could be measured during human walking on two occasions separated by days. The maximal M-wave (Mmax) was measured at rest in the standing position. During treadmill walking every stimulus elicited an M-wave of 25+/-10% of Mmax in the soleus muscle and a supra-maximal stimulus elicited a maximal M-wave 60ms after the first stimulus. Both Mmax during rest and during walking were later used for normalization. When normalized to resting Mmax, the peak reflex amplitude during walking was 5% lower on Day 2 than on Day 1 (p=.32). However, when the peak H-reflex was normalized to Mmax in every sweep, Day 2 showed a significant 15% lower amplitude (p=.037). The same pattern was found for the mean H-reflex. Spearman's Rho was .92 when normalized to resting Mmax but .88 when normalized to Mmax in every sweep. The Pearson product was used to identify one participant at a time on Day 1 among all seven participants on Day 2. For both normalization procedures 5 of 7 participants were identified by this test. Since 5 of 7 participants were recognized between days, it must be recommended to use 10-15 participants for training or intervention studies as far as the H-reflex pattern of modulation during movement is concerned.

U2 - 10.1016/j.humov.2010.02.009

DO - 10.1016/j.humov.2010.02.009

M3 - Journal article

C2 - 20692062

JO - Human Movement Science

JF - Human Movement Science

SN - 0167-9457

ER -

ID: 21657002

Department of Neuroscience