REFERENCES
- National Institute for Occupational Safety and Health (NIOSH) . 2004 . “ Figure 4-2 ” . In Worker Health Chartbook, 2004 , Cincinnati, Ohio : NIOSH . (Pub. No. 2004-146)
- United States Bureau of Labor Statistics (BLS) . 2004 . “Survey of Occupational Injuries and Illnesses, 2002” [Online] http://www.bls.gov/iif/oshsum.htm.
- Borg , G. 1998 . “ The Borg RPE Scale ” . In Borg's Perceived Exertion and Pain Scales , 29 – 38 . Champaign, Ill. : Human Kinetics . 104
- Gamberale , F. 1972 . Perceived exertion, heart rate, oxygen uptake and blood lactate in different work operations . Ergonomics , 15 ( 5 ) : 545 – 554 .
- Haskell , W. L. , Martin , C. Y. , Evans , A. and Irby , P. J. 1993 . Simultaneous measurement of heart rate and body motion to quantitate physical activity . Med. Sci. Sports Exerc. , 25 : 109 – 115 .
- National Institute for Occupational Safety and Health (NIOSH) . 1994 . Applications Manual for the Revised NIOSH Lifting Equation , Cincinnati, Ohio : NIOSH . (Pub. No. 94-110)
- Waters , T. R. , Putz-Anderson , V. , Garg , A. and Fine , L. J. 1993 . Revised NIOSH equation for the design and evaluation of manual lifting tasks . Ergonomics , 36 ( 7 ) : 749 – 776 .