alexa Measuring Tremor – Does Recording Time Matter? | OMICS International
ISSN: 2155-9562

Journal of Neurology & Neurophysiology
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)

Research Article

Measuring Tremor – Does Recording Time Matter?

Gunilla Wastensson1*, Eva M Andersson1and Rita Bast-Pettersen2

1Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital and University of Gothenburg, Box 414, SE-405 30 Gothenburg, Sweden

2National Institute of Occupational Health, P.O. Box 8149 Depot, N-0033 Oslo, Norway

*Corresponding Author:
Gunilla Wastensson
Department of Occupational and Environmental Medicine
Sahlgrenska University Hospital and University of Gothenburg
Box 414, SE-405 30 Gothenburg, Sweden
Tel: +46 31 786 2894
Fax: +46 31 82 5004
E-mail: [email protected]

Received date July 30, 2016; Accepted date October 20, 2016; Published date October 27, 2016

Citation: Wastensson G, Andersson EM, Bast-Pettersen R (2016) Measuring Tremor – Does Recording Time Matter? J Neurol Neurophysiol 7:398. doi:10.4172/2155-9562.1000398

Copyright: © 2016 Wastensson G, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Objective: The CATSYS Tremor Pen has been used in several studies for measurement of tremor among workers with occupational exposure to neurotoxins like mercury and manganese. The main purpose of this study was to investigate whether recording time has an impact on the measured tremor characteristics. Other aims were to investigate whether there are interactions between recording time and age, and between recording time and (selfreported) nicotine use, respectively; to assess the test-retest repeatability of the instrument; to investigate a possible practice effect when performing the test repeatedly; and to evaluate agreement with another tremor test.
Methods: The participants (n=44) consisted of former shipyard workers (mean age 67 years, range 59–76 years). Postural hand tremor was evaluated using the CATSYS Tremor Pen. Five tremor recordings were made; the first lasted 16.4 s, the next three lasted 8.2 s each and the fifth lasted 65.6 s.
Results: There was a significant association between recording time and harmonic index; longer recording time produced higher harmonic index. There was no effect of nicotine use or age that was consistent over all recording times, and no practice effect was seen. The agreement with another tremor test was moderate to good, as was the test-retest reliability.
Conclusion: Some of the tremor characteristics are affected by length of recording time and hence care should be taken when comparing results across studies or with follow-up. The results indicate that the use of a recording time longer than 16.4 s seems to be of doubtful value.

Keywords

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