Document Detail

A novel stress monitoring method through stress-induced respiratory alterations: non-contact measurement of respiratory V(T)/T(I) alterations induced by stressful sound using a 10 GHz microwave radar.
MedLine Citation:
PMID:  22059799     Owner:  NLM     Status:  Publisher    
We have developed a non-contact stress monitoring system which measures respiratory V(T)/T(I) (tidal volume/inspiration time) alterations using a 10 GHz microwave radar. The measurable distance of the system is 50 cm, which is 10 times longer than our previously developed stress monitoring system which measures heart rate variability using a 24-GHz microwave-radar. The study was conducted with eight subjects (23 ± 1years old) to evaluate the efficacy of the system. An audio stimulus at 95 dB sound pressure level was presented to the subjects following a silent period of 120 seconds. During the silent period, V(T)/T(I) averaged 826 ± 384 ml s(-1), while it increased significantly (p < 0.05) with an average of 1227 ± 704 ml s(-1) during audio stimulus low frequency component (LF)/high frequency component (HF), which reflects sympatho-vagal valance, showed a peak during audio stimuli. This paper aims to study the efficacy of the non-contact stress monitoring system for its future applications in many fields including health and safety.
S Gotoh; G Sun; M Kagawa; T Matsui
Related Documents :
22100209 - Stirrup forces during horse riding: a comparison between sitting and rising trot.
22227849 - Comparison of methods for removing electromagnetic noise from electromyographic signals.
16657279 - Comparative studies on plastoquinones: v. changes in lipophilic chloroplast quinones du...
21512959 - Automatic priming of grip force following action observation.
22061869 - Instrumental evaluation of ph effects on ability of pork chops to bloom.
21763339 - Spatiotemporal analysis of brightness induction.
22841139 - Dichroism measurements in forensic fibre examination: part 5-pigmented fibres.
16812089 - Variability of response location on fixed-ratio and fixed-interval schedules of reinfor...
22298829 - Fast visual prediction and slow optimization of preferred walking speed.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-7
Journal Detail:
Title:  Journal of medical engineering & technology     Volume:  -     ISSN:  1464-522X     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7702125     Medline TA:  J Med Eng Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Management Systems Engineering, Tokyo Metropolitan University , 6-6 Asahigaoka, Hino, Tokyo, 191-0065 , Japan.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Osteoarthritis of the talonavicular joint with pseudarthrosis of the navicular bone: a case report.
Next Document:  Assessing the cumulative effects of exposure to selected benzodiazepines on the risk of fall-related...