alexa ORGANIZED JOINT COORDINATION FORMS A TASK-DEPENDENT TRAJECTORY OF THE BODY CENTER OF MASS
ISSN: 2157-7420

Journal of Health & Medical Informatics
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

10th World Congress on HEALTHCARE & TECHNOLOGIES
July 17-18, 2017 | Lisbon, Portugal

Yoichiro Sato, Hiroshi Nagasaki and Norimasa Yamada
Hokkaido University of Science, Japan
Tohoku Bunka Gakuen University, Japan
Chukyo University, Japan
ScientificTracks Abstracts: J Health Med Informat
DOI: 10.4172/2157-7420-C1-015
Abstract
As the central nervous system controls whole-body motion, which involves multi-joint movement, certain problems regarding the number of variables controlled by the central nervous system arise (i.e., the “degree of freedom problem”). The central nervous system solves these problems, not by controlling joint movements, but rather by controlling only the task-dependent center of mass (COM) position of the whole body. Although uncontrolled joint movement should be organized in a coordinate manner to form the task-dependent COM position, it is unclear how the law joint coordination is organized. In the present study, we aimed to clarify the shape of joint coordination by elucidating the mutual relationship between the COM trajectory and joint movement during whole body motion. Downward squatting motions with five trunk angles were recorded by using a 3-D motion analysis system in eight healthy men. The trunk, thigh, and shank angles relative to the vertical line were calculated. Furthermore, the COM coordination in the sagittal plane was calculated using those angles. The COM trajectory showed an approximately vertical path in all trunk conditions, suggesting that the form of the COM trajectory depends on a motor-task. In addition, the COM vertical path suggests that the COM trajectory is constrained by biomechanical dynamics and minimum muscle torques. The shank angle decreased with an increase in the trunk angle, whereas the thigh showed a constant angle. This result suggests that the shank and trunk angles form the COM vertical path and the thigh angle adjusts the COM height. These findings demonstrate that the joints are organized into a lawful coordinative structure to make up the task-dependent COM trajectory. The present findings can contribute to improving motor abilities in healthcare activity and effectiveness of activity of daily living.
Biography

Yoichiro Sato received a Philosophy of Doctor degree in Education from Human Movement Science course at Hokkaido University, Japan, in 2016. His main areas of research are in biomechanics and motor control as it relates to activities of daily living such as walking and sit-to-stand motion in healthy young adults, as well as biomechanics and prevention interventions of the fall in the elderly. He currently researches biomechanics of walking in healthy young adults using experiments and model simulations. Furthermore, he started an investigation into the biomechanics of the single leg standing in healthy young and elderly, which was supported by Grants-in-Aid for scientific research expenses. These studies would contribute to the wellbeing of the elderly.

Email: [email protected]

image PDF   |   image HTML
 

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version