An evaluation of methods assessing the physical demands of manual lifting in scaffolding.

Four methods assessing the physical demands of manual lifting were compared. The scaffolding job was evaluated and three distinct scaffolding tasks were ranked using: (1) the revised NIOSH lifting equation (NIOSH method), (2) lifting guidelines for the Dutch construction industry (Arbouw method), (3) rapid appraisal of the NIOSH lifting equation (practitioners' method), and (4) systematic observations. For the three first-mentioned methods the same dataset was used; observation took place in a different setting in the same company. At job level, all methods indicated that ergonomic interventions are required to protect scaffolders from an increased risk for low back pain. The NIOSH, Arbouw and practitioners' method resulted in a similar ranking order of tasks (transport>construction>dismantlement). In contrast, the observational method gave transport the lowest ranking. The underlying cause was probably that the observational method is more sensitive to durations of tasks and lifting within tasks than the three other methods.

[1]  Patrick G. Dempsey,et al.  Field Evaluation of the Revised Niosh Lifting Equation , 2000 .

[2]  A J van der Beek,et al.  Assessment of mechanical exposure in ergonomic epidemiology. , 1998, Occupational and environmental medicine.

[3]  Thomas R. Waters,et al.  Applications manual for the revised NIOSH lifting equation , 1994 .

[4]  A. Burdorf,et al.  Factors associated with medical care-seeking due to low-back pain in scaffolders. , 2001, American journal of industrial medicine.

[5]  Cheng-Lung Lee,et al.  The Relationship between Low Back Discomfort Ratings and the NIOSH Lifting Index , 1998, Hum. Factors.

[6]  G Govaert,et al.  Postural load and back pain of workers in the manufacturing of prefabricated concrete elements. , 1991, Ergonomics.

[7]  O Karhu,et al.  Correcting working postures in industry: A practical method for analysis. , 1977, Applied ergonomics.

[8]  Å. Kilbom,et al.  Assessment of physical exposure in relation to work-related musculoskeletal disorders--what information can be obtained from systematic observations? , 1994, Scandinavian journal of work, environment & health.

[9]  A Burdorf,et al.  Group-based measurement strategies in exposure assessment explored by bootstrapping. , 2001, Scandinavian journal of work, environment & health.

[10]  T R Waters,et al.  Methods for assessing the physical demands of manual lifting: a review and case study from warehousing. , 1998, American Industrial Hygiene Association journal.

[11]  A. Bloemhoff,et al.  The Atlas of health and working conditions by occupation , 1995, International archives of occupational and environmental health.

[12]  Peter Vink,et al.  A participatory ergonomics approach to redesign work of scaffolders , 1997 .

[13]  R W Marklin,et al.  Four assessment tools of ergonomics interventions: case study at an electric utility's warehouse system. , 1999, American Industrial Hygiene Association journal.

[14]  A Burdorf,et al.  Interrelations of risk factors and low back pain in scaffolders , 2001, Occupational and environmental medicine.

[15]  Til Stürmer,et al.  Construction Work and Low Back Disorder: Preliminary Findings of the Hamburg Construction Worker Study , 1997, Spine.

[16]  R A Haslam,et al.  Manual handling risks and controls in a soft drinks distribution centre. , 1999, Applied ergonomics.

[17]  T. Waters,et al.  Evaluation of the revised NIOSH lifting equation. A cross-sectional epidemiologic study. , 1999, Spine.

[18]  A Garg,et al.  Revised NIOSH equation for the design and evaluation of manual lifting tasks. , 1993, Ergonomics.

[19]  P Spielholz,et al.  An ergonomic characterization of work in concrete form construction. , 1998, American Industrial Hygiene Association journal.

[20]  H Hsiao,et al.  A comparison of different postures for scaffold end-frame disassembly. , 2000, Applied ergonomics.

[21]  W S Marras,et al.  The effectiveness of commonly used lifting assessment methods to identify industrial jobs associated with elevated risk of low-back disorders. , 1999, Ergonomics.

[22]  T R Waters,et al.  Accuracy of measurements for the revised NIOSH lifting equation. National Institute for Occupational Safety and Health. , 1998, Applied ergonomics.

[23]  Gary A. Mirka,et al.  Continuous Assessment of Back Stress (CABS): A New Method to Quantify Low-Back Stress in Jobs with Variable Biomechanical Demands , 2000, Hum. Factors.

[24]  U. Moritz,et al.  Low back and neck/shoulder pain in construction workers: occupational workload and psychosocial risk factors. Part 1: Relationship to low back pain. , 1992, Spine.

[25]  U Rehder,et al.  Cohort study of occupational risk factors of low back pain in construction workers , 2000, Occupational and environmental medicine.

[26]  R. Norman,et al.  A comparison of peak vs cumulative physical work exposure risk factors for the reporting of low back pain in the automotive industry. , 1998, Clinical biomechanics.

[27]  Hongwei Hsiao,et al.  Biomechanical evaluation of scaffolding tasks , 1996 .

[28]  U. Moritz,et al.  Low Back and Neck/Shoulder Pain in Construction Workers: Occupational Workload and Psychosocial Risk Factors , 1992, Spine.

[29]  A J van der Beek,et al.  Working postures and activities of lorry drivers: a reliability study of on-site observation and recording on a pocket computer. , 1992, Applied ergonomics.

[30]  H. F. van der Molen,et al.  Arbouw guidelines on physical workload for the construction industry , 1997 .

[31]  Steven Hecker,et al.  A participatory ergonomics intervention to reduce risk factors for low-back disorders in concrete laborers. , 2004, Applied ergonomics.

[32]  Patrick G Dempsey,et al.  Usability of the revised NIOSH lifting equation , 2002, Ergonomics.

[33]  P G Dempsey,et al.  Influence of measurement accuracy on the application of the 1991 NIOSH equation. , 2001, Applied ergonomics.

[34]  S. Kumar,et al.  Theories of musculoskeletal injury causation , 2001, Ergonomics.

[35]  Donald Bloswick,et al.  Comparison of ergonomic risk assessment outputs from Rapid Upper Limb Assessment and the Strain Index for tasks in automotive assembly plants. , 2003, Work.

[36]  S E Mathiassen,et al.  Assessment of physical work load in epidemiologic studies: concepts, issues and operational considerations. , 1994, Ergonomics.

[37]  V. H. Hildebrandt,et al.  Back pain in the working population: prevalence rates in Dutch trades and professions. , 1995, Ergonomics.