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Int Arch Occup Environ Health. 2010 Jan;83(1):1-8. doi: 10.1007/s00420-009-0471-0. Epub 2009 Oct 27.

Changes in physical performance among construction workers during extended workweeks with 12-hour workdays.

Author information

1
National Research Centre for the Working Environment, Lersø Park Alle 105, 2100 Kbh Ø, Copenhagen, Denmark. AFH@NRCWE.dk

Abstract

PURPOSE:

To investigate changes of physical performance during long working hours and extended workweeks among construction workers with temporary accommodation in camps.

METHODS:

Nineteen construction workers with 12-h workdays and extended workweeks participated. Physical performance in the morning and evening of the second and eleventh workdays was tested by endurance, ability to react to a sudden load, flexibility of the back, handgrip strength and sub-maximal HR during a bicycle test. HR was registered throughout two separate workdays.

RESULTS:

HR during each of the two separate workdays corresponded to a relative workload of 25%. Sub-maximal HR was lower, reaction time faster and handgrip strength higher in the end of each test day. In the end of the work period, sub-maximal HR was lower, reaction time faster and sitting balance was better.

CONCLUSION:

No trends of decreased physical performance were found after a workday or a work period.

PMID:
19859728
DOI:
10.1007/s00420-009-0471-0
[Indexed for MEDLINE]

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