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CISDOC database

Document ID (ISN)22201
CIS number 75-276
ISSN - Serial title Works of the United Research Institute of Hygiene and Industrial Safety
Year 1972
Convention or series no.
Author(s) Ganchev G., Draganova N.
Title Considerations on the problem of phase changes in working capacity.
Bibliographic information 1972, Vol.23, p.7-10. 5 ref.
Abstract Results of ergometric tests carried out to confirm data published on the phenomenon of a phase of latent fatigue which appears after a period of constant effort and before the onset of manifest fatigue. The authors studied the reaction of the cardiovascular system (duration of the R-R interval) to an additional load of up to 600kgm/min during 15s, the basic load being 600kgm/min. It was found that the rate of heart-beat acceleration in response to the additional load is almost uniform over the entire period of exercise. Recovery at the end of the observation period is delayed; this is thought to be a consequence of a decrease in working capacity.
Descriptors (primary) fatigue assessment; physical fatigue
Descriptors (secondary) electrocardiographic changes; ergometric tests; pulse rate; recovery after effort
Document type -
Subject(s) Occupational physiology
Broad subject area(s)
Browse category(ies) Fatigue