Modulation of reflex EMG and stiffness in response to stretch of human finger muscle.

K Akazawa, TE Milner, RB Stein - Journal of …, 1983 - journals.physiology.org
I. Changes in stretch reflex gain and stiffness of the long flexor muscles of the thumb in man
were examined in two kinds of motor tasks, force control and position control, by applying …

The number of active motor units and their firing rates in voluntary contraction of human brachialis muscle

K Kanosue, M Yoshida, K Akazawa… - The Japanese journal of …, 1979 - jstage.jst.go.jp
To make clear the control mechanism of force generation in human muscle, the electrical
activity of the brachialis muscle was studied at various levels of contraction force by recording …

The application of independent component analysis to the multi-channel surface electromyographic signals for separation of motor unit action potential trains: Part I …

H Nakamura, M Yoshida, M Kotani, K Akazawa… - Journal of …, 2004 - Elsevier
The purpose of this study is to examine whether or not the application of independent
component analysis (ICA) is useful for separation of motor unit action potential trains (MUAPTs) …

The force-load-velocity relation and the viscous-like force in the frog skeletal muscle

H Mashima, K AKAZAWA, H KUSHIMA… - The Japanese journal of …, 1972 - jstage.jst.go.jp
THE FORCE-LOAD-VELOCITY RELATION AND THE VISCOUS-LIKE FORCE IN THE FROG
SKELETAL MUSCLE Page 1 Jap. J. Physiol., 22, 103-120, 1972 THE FORCE-LOAD-VELOCITY …

A novel method for systematic analysis of rigidity in Parkinson's disease

T Endo, R Okuno, M Yokoe, K Akazawa… - … : official journal of the …, 2009 - Wiley Online Library
We propose a novel system that analyzes the components of rigidity in Parkinson's disease (PD)
usually perceived by physicians, in a very simple and systematic way for routine clinical …

Finger taps movement acceleration measurement system for quantitative diagnosis of Parkinson's disease

R Okuno, M Yokoe, K Akazawa, K Abe… - … Conference of the …, 2006 - ieeexplore.ieee.org
The purpose of this study was to develop a finger taps acceleration measurement system for
the quantitative diagnosis of Parkinson’s disease. The system was composed of two 3-axis …

Biomimetic EMG-prosthesis-hand

K Akazawa, R Okuno, M Yoshida - Proceedings of 18th Annual …, 1996 - ieeexplore.ieee.org
The purpose of this study is to develop a myoelectric prosthetic hand that simulates fundamental
dynamic properties of the neuromuscular control system of human hand. In particular, …

Neural network model for control of muscle force based on the size principle of motor unit

K Akazawa, K Kato - Proceedings of the IEEE, 1990 - ieeexplore.ieee.org
A neural-network model consisting of a single motor cortex output cell, alpha motoneurons,
Renshaw cells, and muscle units is proposed. Linear relations between motor cortex output …

Analysis of spatial temporal plantar pressure pattern during gait in Parkinson's disease

R Okuno, S Fujimoto, J Akazawa… - 2008 30th Annual …, 2008 - ieeexplore.ieee.org
Spatial temporal plantar pressure patterns measured with sheet-shaped pressure sensor
were investigated to extract features of gait in Parkinson's disease. Both six subjects of …

A novel hill-type two-mode model of skeletal muscle to simulate mechanisms underlying position control on the descending limb of the force–length relation

K Akazawa - Advanced Biomedical Engineering, 2020 - jstage.jst.go.jp
In a new Hill-type two-mode model of skeletal muscle, a stretch-evoked force enhancement
mode is introduced in addition to a sliding filament mode on the descending limb of the …