Determining the maximum acceptable work duration for high-intensity work View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2001-08

AUTHORS

Hsin-Chieh Wu, Mao-Jiun J. Wang

ABSTRACT

The aim of this study was to determine the maximum acceptable work duration (MAWD) for high-intensity work. Thirty young individuals participated in this study. Their maximum oxygen uptake (VO2max) and maximum work rate (MWR) were assessed first. Each subject then performed two cycling tests (60% and 70% MWR) on two separate days. Oxygen uptake and heart rate data were collected throughout the test. The results indicate that the MAWD in the 60% MWR test (18.8 min) was about threefold greater than the MAWD in the 70% MWR test (6.5 min). The MAWD was inversely correlated with the relative workload indices: relative oxygen uptake (RVO2; r = -0.82, P < 0.001) and relative heart rate (RHR; r = -0.79, P < 0.001). The RVO2 was defined as the elevation in oxygen uptake from the resting level as a percentage of the difference between maximum and resting oxygen uptake. The RHR was defined as the elevation in heart rate from the resting level as a percentage of the difference between maximum and restingheart rate. Furthermore, more than 80% of the variations were explained by the exponential decrease regression model for predicting MAWD using the above two variables. The findings of this study can provide useful information for the design of high-intensity jobs. More... »

PAGES

339-344

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s004210100453

DOI

http://dx.doi.org/10.1007/s004210100453

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1033128807

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/11560089


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