| Tactile feedback plays a critical role in maximum finger force production. | |
| | |
MedLine Citation:
|
PMID: 22222494 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
This study investigates the role of cutaneous feedback on maximum voluntary force (MVF), finger force deficit (FD) and finger independence (FI). FD was calculated as the difference between the sum of maximal individual finger forces during single-finger pressing tasks and the maximal force produced by those fingers during an all-finger pressing task. FI was calculated as the average non-task finger forces normalized by the task-finger forces and subtracted from 100 percent. Twenty young healthy right-handed males participated in the study. Cutaneous feedback was removed by administering ring block digital anesthesia on the 2nd, 3rd, 4th and 5th digits of the right hands. Subjects were asked to press force sensors with maximal effort using individual digits as well as all four digits together, with and without cutaneous feedback. Results from the study showed a 25% decrease in MVF for the individual fingers as well as all the four fingers pressing together after the removal of cutaneous feedback. Additionally, more than 100% increase in FD after the removal of cutaneous feedback was observed in the middle and ring fingers. No changes in FI values were observed between the two conditions. Results of this study suggest that the central nervous system utilizes cutaneous feedback and the feedback mechanism plays a critical role in maximal voluntary force production by the hand digits. |
| | |
Authors:
|
Jae Kun Shim; Sohit Karol; You-Sin Kim; Na Jin Seo; Yoon Hyuk Kim; Yushin Kim; Bum Chul Yoon |
Related Documents
:
|
15167554 - Opposite visual field asymmetries for egocentric and allocentric spatial judgments. 16982044 - Judgments of associative memory. 22004184 - Vision for action in toddlers: the posting task. 15070084 - Temporal contiguity and contingency judgments: a pavlovian analogue. 1446694 - Variation in external context and adult age differences in action memory. 19825394 - Experience-dependent changes in human brain activation during contingency learning. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-1-3 |
Journal Detail:
|
Title: Journal of biomechanics Volume: - ISSN: 1873-2380 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
|
Created Date: 2012-1-6 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0157375 Medline TA: J Biomech Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Published by Elsevier Ltd. |
Affiliation:
|
Department of Kinesiology, University of Maryland, College Park, MD, USA; Department of Mechanical Engineering, Kyung Hee University, Global Campus, Korea. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Antiangiogenic-Induced Hypertension: The Molecular Basis of Signaling Network.
Next Document: Citizens' Obligation to Obey the Law: An Empirical Study of Guangzhou, China.