Title :
Measurement of shoulder complex motion with EMG recording
Author :
Takahashi, Makoto ; Ishida, Akimasa ; Suzuki, Shoji ; Nakagawa, Teruhiko ; Moriwaki, Masayuki
Author_Institution :
Inst. for Med. & Dental Eng., Tokyo Med. & Dental Univ., Japan
Abstract :
Apparatus for measuring the motion of the shoulder complex has been developed. The system is composed of five parts: a mechanism which consists of a gimbal and a sliding free arm with four optical rotary encoders; a counter circuit which decodes the outputs of the rotary encoders; eight-channel EMG amplifiers; a personal computer system; and holding gear for the subject´s trunk and elbow. The loci of the fingertips, which are mapped on the horizontal, sagittal, and frontal plane of the subject, are displayed in real time. The amplitude grade of the EMGs is indicated on the loci by colored sectors. The apparatus can calculate the conventional range of motion of the shoulder complex and the three-dimensional range of the shoulder motion.<>
Keywords :
bioelectric potentials; biomechanics; biomedical equipment; biomedical measurement; muscle; EMG recording; counter circuit; eight-channel EMG amplifiers; elbow; electromyography; fingertips; optical rotary encoders; personal computer system; shoulder complex motion; trunk;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94836
