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- Title
Function of Bi-Articular Femoral Muscles During the Transition from Sitting to Standing Up.
- Authors
Koide, Takuya; Manno, Masanobu; Takahama, Hiroshi; Fujikawa, Tomohiko
- Abstract
As the elderly population increases, independent living for the aged has become essential for extending a healthy life expectancy, and this requires the maintenance of mobility for daily activities, such as standing up and walking. Among these, standing up, a series of movements involved in getting out of a chair or bed, is the starting point of daily activities. Therefore, it is important to clarify the factors that contribute to accomplishing the transition from sitting to standing up. This study attempted to clarify the relationship between motor characteristics and the mechanism of muscle activity involved in the change from sitting to standing up. Specifically, we focused on the activity of the bi-articular muscles involved in the two joints simultaneously rather than joint torque that is the conventional standard for evaluating motion. We probed the mechanistic characteristics of bi-articular muscle activity as well as the main muscles that function during normal standing up motion, namely a natural standing up movement where the trunk is not vertically restricted, using electromyographic analysis, theoretical analysis using a link model based on the muscle arrangement of the lower limb, and experimental analysis using an actual model that reproduces the functions of these muscles to define the muscular activities of the thigh muscles.
- Subjects
MUSCLES; OLDER people; KNEE joint; LIFE expectancy; INDEPENDENT living; ACTIVITIES of daily living
- Publication
Journal of Robotics & Mechatronics, 2024, Vol 36, Issue 3, p711
- ISSN
0915-3942
- Publication type
Article
- DOI
10.20965/jrm.2024.p0711