Neck rotation modulates motor-evoked potential duration of proximal muscle cortical representations in healthy adults
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作者:
Alana B. McCambridge
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机构:University of Technology Sydney,Graduate School of Health, Discipline of Physiotherapy
Alana B. McCambridge
Kayla Hay
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机构:University of Technology Sydney,Graduate School of Health, Discipline of Physiotherapy
Kayla Hay
Kumbelin Levin
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机构:University of Technology Sydney,Graduate School of Health, Discipline of Physiotherapy
Kumbelin Levin
Kirsty Philpott
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机构:University of Technology Sydney,Graduate School of Health, Discipline of Physiotherapy
Kirsty Philpott
Kunal Wood
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机构:University of Technology Sydney,Graduate School of Health, Discipline of Physiotherapy
Kunal Wood
Lynley V. Bradnam
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机构:University of Technology Sydney,Graduate School of Health, Discipline of Physiotherapy
Lynley V. Bradnam
机构:
[1] University of Technology Sydney,Graduate School of Health, Discipline of Physiotherapy
[2] University of Auckland,Department of Exercise Sciences
[3] University of Auckland,Centre for Brain Research
来源:
Experimental Brain Research
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2020年
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238卷
关键词:
Transcranial magnetic stimulation;
Propriospinal;
Motor-evoked potential;
Motor cortex;
Subcortical;
Upper limb;
D O I:
暂无
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摘要:
Transcranial magnetic stimulation (TMS) produces motor-evoked potentials (MEP) used to infer changes in corticomotor excitability. In humans, neck rotation can probe reticulospinal input on corticomotor output. This study investigated the effect of neck rotation on MEP duration in a proximal and distal upper limb muscle and compared responses between rest and preactivation. Single-pulse TMS to motor cortex was used to evoke MEPs at two stimulus intensities in 18 healthy adults (20–40 years). Surface electromyography recorded MEPs from the non-dominant biceps brachii (BB) and first dorsal interosseous (FDI). Participants were seated with the target muscle at rest or 10% preactivated, and head rotated ipsilateral, contralateral, or in neutral position. The primary outcome was MEP tail, defined as the mean difference in MEP duration between active and rest trials. Secondary outcomes were MEP duration and amplitude. MEP tail was modulated by neck rotation in the proximal BB (P = 0.03) but not distal FDI (P > 0.19), with shorter duration during ipsilateral or contralateral rotation relative to neutral. In a neutral neck position, MEP duration was prolonged by muscle preactivation and higher TMS intensities in the FDI and BB (P < 0.03). Neck rotation attenuated the prolongation of MEP duration during preactivation in the BB, but not the FDI. Neck rotation had no effect on MEP amplitude for either muscle (P > 0.05). Modulation of the late portion of the MEP by rotation of the neck could indicate subcortical projections to alpha-motoneuron pools are stronger in proximal than distal upper limb muscles. These findings may have relevance for using MEP duration as a neural biomarker in neurological diseases.
机构:
Sun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R ChinaSun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R China
Zhang, Jin
Huang, Wen-Hao
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Sun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R ChinaSun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R China
Huang, Wen-Hao
Zheng, Ya-Dan
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Sun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R ChinaSun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R China
Zheng, Ya-Dan
Li, Xin
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Sun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R ChinaSun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R China
Li, Xin
Jiang, Hao-Xiang
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Sun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R ChinaSun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R China
Jiang, Hao-Xiang
Su, Min-Zhi
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Sun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R ChinaSun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R China
Su, Min-Zhi
Huang, Xiao-Yan
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Sun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R ChinaSun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R China
Huang, Xiao-Yan
Dou, Zu-Lin
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Sun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R ChinaSun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R China
Dou, Zu-Lin
Tang, Zhi-Ming
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Sun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R ChinaSun Yat sen Univ, Affiliated Hosp 3, Dept Rehabil Med, Guangzhou, Peoples R China
机构:
Nara Med Univ, Otolaryngol Head & Neck Surg, Kashihara, Nara, Japan
Bellland Gen Hosp, Otolaryngol Head & Neck Surg, Sakai, Osaka, JapanNara Med Univ, Otolaryngol Head & Neck Surg, Kashihara, Nara, Japan
Tanaka, Akihisa
Uemura, Hirokazu
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Nara Med Univ, Otolaryngol Head & Neck Surg, Kashihara, Nara, JapanNara Med Univ, Otolaryngol Head & Neck Surg, Kashihara, Nara, Japan
Uemura, Hirokazu
Takatani, Tsunenori
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Nara Med Univ, Anesthesiol, Kashihara, Nara, JapanNara Med Univ, Otolaryngol Head & Neck Surg, Kashihara, Nara, Japan
Takatani, Tsunenori
Kawaguchi, Masahiko
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Nara Med Univ, Anesthesiol, Kashihara, Nara, JapanNara Med Univ, Otolaryngol Head & Neck Surg, Kashihara, Nara, Japan
Kawaguchi, Masahiko
Hayashi, Hironobu
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Nara Med Univ, Anesthesiol, Kashihara, Nara, JapanNara Med Univ, Otolaryngol Head & Neck Surg, Kashihara, Nara, Japan
Hayashi, Hironobu
Kitahara, Tadashi
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Nara Med Univ, Otolaryngol Head & Neck Surg, Kashihara, Nara, JapanNara Med Univ, Otolaryngol Head & Neck Surg, Kashihara, Nara, Japan
机构:
Univ Southern Calif, Surg Neurophysiol Program, Dept Neurol, Los Angeles, CA USAUniv Southern Calif, Surg Neurophysiol Program, Dept Neurol, Los Angeles, CA USA
Gonzalez, Andres A.
Cheongsiatmoy, Justin
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Univ Southern Calif, Surg Neurophysiol Program, Dept Neurol, Los Angeles, CA USAUniv Southern Calif, Surg Neurophysiol Program, Dept Neurol, Los Angeles, CA USA
Cheongsiatmoy, Justin
Shilian, Parastou
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Univ Southern Calif, Surg Neurophysiol Program, Dept Neurol, Los Angeles, CA USAUniv Southern Calif, Surg Neurophysiol Program, Dept Neurol, Los Angeles, CA USA
Shilian, Parastou
Parikh, Pooja
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Univ Southern Calif, Surg Neurophysiol Program, Dept Neurol, Los Angeles, CA USAUniv Southern Calif, Surg Neurophysiol Program, Dept Neurol, Los Angeles, CA USA