Interdecadal changes of nerve conduction studies of lower limb in healthy Japanese subjects
In Japan, it was well known that the compound muscle action potential (CMAP) of the extensor digitorum brevis (EDB) muscle with fibular nerve stimulation could not be often obtained in normal subjects. It is suggested there is subclinical fibular nerve palsy due to the Japanese traditional “floor si...
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| Published in | Japanese Journal of Clinical Neurophysiology Vol. 47; no. 6; pp. 519 - 525 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | Japanese |
| Published |
Japanese Society of Clinical Neurophysiology
01.12.2019
一般社団法人 日本臨床神経生理学会 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1345-7101 2188-031X |
| DOI | 10.11422/jscn.47.519 |
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| Abstract | In Japan, it was well known that the compound muscle action potential (CMAP) of the extensor digitorum brevis (EDB) muscle with fibular nerve stimulation could not be often obtained in normal subjects. It is suggested there is subclinical fibular nerve palsy due to the Japanese traditional “floor sitting” lifestyle, but there have been no corroborative studies. We received the nerve conduction study results in 139 healthy Japanese subjects without neurological deficits, which were recorded from 1985 to 2015. CMAP amplitudes from fibular nerve and tibial nerve stimulations in 1985 showed lower than that in 2005 and in 2015. These amplitudes is not demonstrated a relationship with BMI and body height. We considered the interdecadal changes were due to change in our lifestyle. |
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| AbstractList | In Japan, it was well known that the compound muscle action potential (CMAP) of the extensor digitorum brevis (EDB) muscle with fibular nerve stimulation could not be often obtained in normal subjects. It is suggested there is subclinical fibular nerve palsy due to the Japanese traditional “floor sitting” lifestyle, but there have been no corroborative studies. We received the nerve conduction study results in 139 healthy Japanese subjects without neurological deficits, which were recorded from 1985 to 2015. CMAP amplitudes from fibular nerve and tibial nerve stimulations in 1985 showed lower than that in 2005 and in 2015. These amplitudes is not demonstrated a relationship with BMI and body height. We considered the interdecadal changes were due to change in our lifestyle.
日本人の総腓骨神経伝導検査では, 健常人でも導出困難例が存在すると言われ, いわゆるルーチン検査の被検神経として選択していない施設も多い。この導出困難例については正座習慣による潜在性腓骨神経障害が存在するためと推測されてきたが, 検証はされていない。近年, 生活習慣は変化していることから, 健常成人の下肢神経伝導検査所見の経年変化を検討した。総腓骨神経, 脛骨神経複合運動活動電位 (CMAP) 振幅は, 1995年以降では有意に増大していた。これらの変化には, 体格や検査時の栄養状態による影響は低く, 運動習慣, 椅子生活への変化などの生活スタイルの変化が影響している可能性を考えた。総腓骨神経の伝導検査は, 1995年以降ではCMAP振幅は有意に増大し導出も容易となっており, 異常の判定も容易になっていると考えた。今後, 総腓骨神経がルーチン検査の被検神経として広く使われることが望ましい。 In Japan, it was well known that the compound muscle action potential (CMAP) of the extensor digitorum brevis (EDB) muscle with fibular nerve stimulation could not be often obtained in normal subjects. It is suggested there is subclinical fibular nerve palsy due to the Japanese traditional “floor sitting” lifestyle, but there have been no corroborative studies. We received the nerve conduction study results in 139 healthy Japanese subjects without neurological deficits, which were recorded from 1985 to 2015. CMAP amplitudes from fibular nerve and tibial nerve stimulations in 1985 showed lower than that in 2005 and in 2015. These amplitudes is not demonstrated a relationship with BMI and body height. We considered the interdecadal changes were due to change in our lifestyle. |
| Author | Hirashima, Fumiko Abe, Tatsuya Shimizu, Toshio Koike, Kiyomi Komori, Tetsuo |
| Author_FL | Hirashima Fumiko 小森 哲夫 阿部 達哉 Shimizu Toshio 小池 清美 |
| Author_FL_xml | – sequence: 1 fullname: Hirashima Fumiko – sequence: 2 fullname: Shimizu Toshio – sequence: 3 fullname: 小池 清美 – sequence: 4 fullname: 阿部 達哉 – sequence: 5 fullname: 小森 哲夫 |
| Author_xml | – sequence: 1 fullname: Abe, Tatsuya organization: Department of Neurology, Center for Neuromuscular and Intractable Disease, National Hospital Organization Hakone Hospital – sequence: 1 fullname: Hirashima, Fumiko organization: Department of Neurology, Center for Neuromuscular and Intractable Disease, National Hospital Organization Hakone Hospital – sequence: 1 fullname: Komori, Tetsuo organization: Department of Neurology, Center for Neuromuscular and Intractable Disease, National Hospital Organization Hakone Hospital – sequence: 1 fullname: Koike, Kiyomi organization: Department of Clinical Laboratory, Tokyo Metropolitan Neurological Hospital – sequence: 1 fullname: Shimizu, Toshio organization: Department of Neurology, Tokyo Metropolitan Neurological Hospital |
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| References | 1) Hodes R: An electromyographic study of defects of neuromuscular transmission in poliomyelitis. Arch Neurol Psychiatry 59: 436–438, 1948. 11) Pensford SN: Sensory conduction in medial and lateral plantar nerves. J Neurol Neurosurg Psychiatry 51: 188–191, 1988. 7) 金 春玉, 馬場正之, 松中宗雄: 健常若年成人における運動神経伝導パラメーターの左右差について. 臨床脳波 45: 234–238, 2003. 6) 馬場正之: 下肢の神経伝導検査. 園生雅弘, 馬場正之 (編). 神経筋電気診断の実際. 星和書店, 東京, pp 17–29, 2004. 8) 馬場正之, 金 春玉, 沈 正男: 本邦健常成人に見られる腓骨神経A波について. 臨床脳波 49: 369–372, 2007. 10) Kishi M, Sakakibara R, Takahashi O, et al: Seiza-induced neuropathy: an occupational peroneal neuropathy in a Japanese lady. Neurol Sci 38: 1521–1522, 2017. 4) Nakane K: Clinical study on the conduction velocity of peripheral motor nerves. Igaku Kenkyu 37: 693–712, 1967. 9) Bischoff C, Stalberg E, Falck B, et al: Significance of A-waves recorded in routine motor nerve conduction studies. Electroencephalogr Clin Neurophysiol 101: 528–533, 1996. 2) Hodes R, Larrabee MG, German W: The human electromyogram in response to nerve stimulation and the conduction velocity for motor axons; studies on normal and on injured peripheral nerves. Arch Neurol Psychiatry 60: 340–365, 1948. 5) Oh SJ: Clinical Electromyography: Nerve Conduction Studies. 3rd edition, Lippincott Williams & Wilkins, Philadelphia, pp 86–344, 2003. 3) Kuroiwa T, Murai Y: Hereditary sensory radicular neuropathy with special reference to conduction velocity study. Neurology 14: 574–577, 1964. |
| References_xml | – reference: 11) Pensford SN: Sensory conduction in medial and lateral plantar nerves. J Neurol Neurosurg Psychiatry 51: 188–191, 1988. – reference: 1) Hodes R: An electromyographic study of defects of neuromuscular transmission in poliomyelitis. Arch Neurol Psychiatry 59: 436–438, 1948. – reference: 7) 金 春玉, 馬場正之, 松中宗雄: 健常若年成人における運動神経伝導パラメーターの左右差について. 臨床脳波 45: 234–238, 2003. – reference: 10) Kishi M, Sakakibara R, Takahashi O, et al: Seiza-induced neuropathy: an occupational peroneal neuropathy in a Japanese lady. Neurol Sci 38: 1521–1522, 2017. – reference: 3) Kuroiwa T, Murai Y: Hereditary sensory radicular neuropathy with special reference to conduction velocity study. Neurology 14: 574–577, 1964. – reference: 6) 馬場正之: 下肢の神経伝導検査. 園生雅弘, 馬場正之 (編). 神経筋電気診断の実際. 星和書店, 東京, pp 17–29, 2004. – reference: 2) Hodes R, Larrabee MG, German W: The human electromyogram in response to nerve stimulation and the conduction velocity for motor axons; studies on normal and on injured peripheral nerves. Arch Neurol Psychiatry 60: 340–365, 1948. – reference: 8) 馬場正之, 金 春玉, 沈 正男: 本邦健常成人に見られる腓骨神経A波について. 臨床脳波 49: 369–372, 2007. – reference: 9) Bischoff C, Stalberg E, Falck B, et al: Significance of A-waves recorded in routine motor nerve conduction studies. Electroencephalogr Clin Neurophysiol 101: 528–533, 1996. – reference: 4) Nakane K: Clinical study on the conduction velocity of peripheral motor nerves. Igaku Kenkyu 37: 693–712, 1967. – reference: 5) Oh SJ: Clinical Electromyography: Nerve Conduction Studies. 3rd edition, Lippincott Williams & Wilkins, Philadelphia, pp 86–344, 2003. |
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| Title | Interdecadal changes of nerve conduction studies of lower limb in healthy Japanese subjects |
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