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Document ID (ISN)102068
CIS number 03-1224
ISSN - Serial title 0300-8134 - Journal of Human Ergology
Year 2001
Convention or series no.
Author(s) Sato S., Taoda K., Kawamura M., Wakaba K., Fukuchi Y., Nishiyama K.
Title Heart rate variability during long truck driving work
Bibliographic information Dec. 2001, Vol.30, No.1-2, p.235-240. Illus. 17 ref.
Abstract Ambulatory electrocardiograms of six long-distance truck drivers were recoded during their work period in order to observe the autonomic nervous function and symptoms during work. The RR50 (the number of cycles with R-R interval >50ms) and the low-frequency power/high-frequency power (LFP/HFP) ratio were calculated every two minutes. During naps, RR50 was significantly higher than during other periods of the work shift, while the LFP/HFP ratio was significantly lower. RRRR50 was also significantly higher in the morning than in the afternoon, while again the LFP/HFP ratio was lower. These results show that the parasympathetic nervous activities were more dominant than sympathetic nervous activities in the morning. Driving during high parasympathetic nervous activity levels may add to cardiovascular stress and lead to drowsiness.
Descriptors (primary) drivers; road transport; pulse rate; hours of work
Descriptors (secondary) male workers; Japan; electrocardiographic changes; sympathetic nervous system; sleep disturbances; workload assessment; electrocardiography; cardiovascular disorders
Document type D - Periodical articles
Country / State or ProvinceJapan
Subject(s) Transport and communications
Broad subject area(s) Industries and occupations
Browse category(ies) Cardiovascular diseases
Road transportation
Hours of work