Document Detail

Physical efficiency of Bengali farmers in response to change in environmental factors.
MedLine Citation:
PMID:  7844354     Owner:  NLM     Status:  MEDLINE    
The present study was conducted on young farmers, selected randomly from a village of West Bengal. Their pre-exercise heart rate (HR), blood pressure (BP), mean arterial pressure (MAP), and other physical parameters were recorded. They were asked to perform standard step test at four different times of a day when environmental factors were recorded. Recorded environmental factors were maximum ambient temperature (Tmax), and minimum ambient temperature (Tmin) for the whole day, ambient temperature (Ta), relative humidity (RH), air velocity (AV), and globe temperature (Tg). The barometric pressure (P) was noted to be constant throughout the experiment. Post-exercise HR and MAP were also recorded. Our observations showed that environmental factors changed as the day progressed from the morning to noon and from noon to night; the physiological parameters of the farmers also changed. HR was lowest in the morning and night but highest in the evening while MAP was highest at midday and gradually returned to the pre-exercise level by the evening. The determined Physical Fitness Index (PFI) of the farmers was noted to be lowest at midday but highest at night. Our studies indicate that environmental factors have a role on the physical efficiency of farmers. Ta, RH and Tg appear to be primarily responsible for the alterations in the physiological functions and PFI.
A M Chandra; S Mahanta; N Sadhu
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of human ergology     Volume:  23     ISSN:  0300-8134     ISO Abbreviation:  J Hum Ergol (Tokyo)     Publication Date:  1994 Jun 
Date Detail:
Created Date:  1995-03-09     Completed Date:  1995-03-09     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0364267     Medline TA:  J Hum Ergol (Tokyo)     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  1-6     Citation Subset:  IM; S    
Department of Physiology, University College of Science & Technology, University of Calcutta, India.
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MeSH Terms
Blood Pressure / physiology
Environmental Exposure*
Exercise Test
Heart Rate / physiology
Hot Temperature / adverse effects
Physical Fitness / physiology*
Stress, Physiological / etiology,  physiopathology*

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