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Featured researches published by Satoru Kai.


Archive | 2013

Evoked EMG Makes Measurement of Muscle Tone Possible by Analysis of the H/M Ratio

Satoru Kai; Koji Nakabayashi

When a peripheral nerve is subjected to percutaneous electrical stimulation, action potentials are induced in the innervated skeletal muscle. The induced action potential is recorded by evoked EMG, which includes the H-wave, the M-wave, and the F-wave (Fig. 1). The H-wave is a good indicator of the strength and distribution of the stimulus input from muscle spindle to the motor neuron pool, which lies at the site of the anterior horn of the spinal cord. The Hwave is commonly used, therefore, in the diagnosis of peripheral neuropathy (Kaeser 1973). The H-wave is also used to examine the state of muscle tone and spasticity, or other movement disorders of the central nervous system.


Rigakuryoho Kagaku | 2010

Influence of Blowgun Training on Respiratory Function

Takayuki Nagasaki; Hirotaka Okada; Satoru Kai; Seiichiro Takahashi

〔目的〕吹矢トレーニングが呼吸機能に及ぼす影響を呼気筋トレーニングと比較して,検討することである。〔対象〕健常者19名。〔方法〕無作為に吹矢群10名と呼気筋トレーニング群(呼気筋群)9名の2群に分け,吹矢群には吹矢トレーニング,呼気筋群にはスレショルドPEPを用いた呼気抵抗負荷トレーニングを実施し,呼吸機能の肺活量,努力性肺活量,一秒量,一秒率,呼気最大流速(PEF),呼気最大口腔内圧(PEmax),吸気最大口腔内圧を測定し,各群内および群間で比較した〔結果〕吹矢群はPEF,PEmaxの数値が増加し統計学的有意差を認めた。その他の呼吸機能は差を認めなかった。呼気筋群はPEF,PEmaxの数値は増加したものの統計学的有意差を認めなかった。その他の呼吸機能についても差を認めなかった。また吹矢群と呼気筋群の呼吸機能の比較おいては統計学的有意差を認めなかった。〔結語〕吹矢トレーニングはPEF,PEmaxを増加させ,呼気筋トレーニングと同様の影響を呼吸機能に与えることが示唆された。


Journal of Physical Therapy Science | 2008

Trunk Muscle Activity in Two-Leg Standing to One-Leg Standing in Healthy Elderly Adults

Satoru Kai; Ryuji Yoshimoto; Masami Nakahara; Shigeo Murakami; Kazuo Watari; Seiichiro Takahashi


Journal of Physical Therapy Science | 2005

Intermanual Transfer of Effects of Motor Learning from the Dominant to Non-Dominant Hand using a Grip Force Retaining Task

Satoru Kai; Kazuo Watari


Rigakuryoho Kagaku | 2011

The Inhibitory Effect of Vibration Stimulus on Muscle Tone of the Triceps Surae: Analysis of the H/M Ratio

Koji Nakabayashi; Takayuki Kodama; Kentaro Mizuno; Takuro Ikeda; Naohito Kai; Tsuyoshi Fukura; Satoru Kai


Journal of Physical Therapy Science | 2008

Heart Rate Variability during Two-Leg to One-Leg Standing Shift in the Elderly

Satoru Kai; Masami Nakahara; Shigeo Murakami; Ryuji Yoshimoto; Kazuo Watari; Yuko Ooura; Kaori Nakatomi; Seiichiro Takahashi


Rigakuryoho Kagaku | 2007

Radial and Tangential Development of Neurons in the Human Cerebral Cortex

Kazuo Watari; Satoru Kai; Ryuji Yoshimoto; Yumi Ogawa; Mayu Hase; Yoshie Segawa; Takeshi Kanaumi; Sachio Takashima


Journal of Physical Therapy Science | 2004

Relationships among Jump Motion Control Ability, Knee Joint Position Sense, and Adjusting Muscle Contraction in Healthy Subjects

Satoru Kai; Isao Nara


Rigakuryoho Kagaku | 2012

Muscle Tone Inhibitory Effects of Vibration Applied to the Tendon and Muscle Belly of the Triceps Surae

Koji Nakabayashi; Takayuki Kodama; Norihisa Matsumoto; Hironori Yamamoto; Michinari Nomiyama; Tsuyoshi Fukura; Satoru Kai


Rigakuryoho Kagaku | 2009

Neuronal Compensation and Plasticity in the Brains of Children with Remote Periventricular Leukomalacia

Koji Nakabayashi; Kentaro Mizuno; Takayuki Kodama; Satoru Kai; Seiichiro Takahashi; Shinichi Hirose; Sachio Takashima

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Seiichiro Takahashi

International University of Health and Welfare

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Takayuki Kodama

Kyoto Tachibana University

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Kazuo Watari

International University of Health and Welfare

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Seiichi Yasumoto

International University of Health and Welfare

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Takayuki Nagasaki

Kyushu University of Nursing and Social Welfare

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Takuro Ikeda

International University of Health and Welfare

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