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Physiological effects of back belt wearing during asymmetric lifting.

Authors
Bobick-TG; Belard-JL; Hsiao-H; Wassell-JT
Source
Appl Ergon 2001 Dec; 32(6):541-547
NIOSHTIC No.
20021675
Abstract
This study investigated the effect of wearing a back belt on subjects' heart rate, oxygen consumption, systolic and diastolic blood pressure, and respiratory frequency during asymmetric repetitive lifting. Thirty subjects with materials-handling experience utilized three different belts (ten subjects per belt). Subjects completed six 30-min lifting sessions-three while wearing a belt and three without. Data analyses were conducted on the second, third, and fourth lifting periods. A 9.4 kg box, without handles, was lifted 3 times/min, starting at 10 cm above the floor, ending at 79 cm, with a 60 degrees twist to the right. Data analysis indicates that belt-wearing did not have a significant effect on the overall mean values for heart rate, systolic and diastolic blood pressure, and respiratory frequency. Belt-wearing had a significant effect on the overall mean oxygen consumption of the subjects.
Keywords
Manual-lifting; Back-injuries; Data-processing; Heart-rate; Heart; Oxygen-uptake; Humans; Author Keywords: Manual lifting; Physiology; Back belt
Contact
Thomas G. Bobick, Division of Safety Research, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
CODEN
AERGBW
Publication Date
20011201
Document Type
Journal Article
Email Address
txb4@cdc.gov
Fiscal Year
2002
NTIS Accession No.
NTIS Price
Issue of Publication
6
ISSN
0003-6870
NIOSH Division
DSR
Source Name
Applied Ergonomics
State
WV
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