Biomaterial Database

Cut-points to prevent low back injury due to force exertion at work. 2006

Edgar Ramos Vieira, and Shrawan Kumar

Ergonomics Research Laboratory, Department of Physical Therapy, University of Alberta, Canada. evieira@ualberta.ca

Force exertion is related to low back injuries (LBI). This paper critically reviews the literature concerning cut-points for back force exertion, presents available guidelines in a concise manner, and identifies areas that need further research. The studies reviewed were grouped according to the criteria used to set the cut-point values. Most often cut-points differ than concur. The approach considering physiological, psychophysical, epidemiological, and biomechanical aspects of back force exertion meets the most known criteria and presents the lowest common denominator of instantaneous load for lifting tasks. Further experimental and epidemiological studies in peak load and cumulative exposure are necessary. Compound indices should also be developed for pushing, pulling, and carrying. Future indices should consider electromyographically determined fatigue, differential viscoelastic properties of tissues, aging, and the cross sectional area of back muscles. We hope that this paper contributes to a more systematic appraisal of back force exertion at work.

UI	MeSH Term	Description	Entries
D005082	Physical Exertion	Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included.	Physical Effort,Effort, Physical,Efforts, Physical,Exertion, Physical,Exertions, Physical,Physical Efforts,Physical Exertions
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006804	Ergonomics	The science of designing, building or equipping mechanical devices or artificial environments to the anthropometric, physiological, or psychological requirements of the people who will use them.	Engineering Psychology,Human Engineering,Cognitive Ergonomics,Ergonomic Assessment,Human Factors Engineering,Human Factors and Ergonomics,Organizational Ergonomics,Physical Ergonomics,Psychology, Engineering,Visual Ergonomics,Cognitive Ergonomic,Ergonomic,Ergonomic Assessments,Ergonomic, Cognitive,Ergonomic, Organizational,Ergonomic, Physical,Ergonomic, Visual,Ergonomics, Cognitive,Ergonomics, Organizational,Ergonomics, Physical,Ergonomics, Visual,Human Factors Engineerings,Organizational Ergonomic,Physical Ergonomic,Visual Ergonomic
D000416	Alberta	A province of western Canada, lying between the provinces of British Columbia and Saskatchewan. Its capital is Edmonton. It was named in honor of Princess Louise Caroline Alberta, the fourth daughter of Queen Victoria. (From Webster's New Geographical Dictionary, 1988, p26 & Room, Brewer's Dictionary of Names, 1992, p12)
D013131	Spine	The spinal or vertebral column.	Spinal Column,Vertebrae,Vertebral Column,Vertebra,Column, Spinal,Column, Vertebral,Columns, Spinal,Columns, Vertebral,Spinal Columns,Vertebral Columns
D016272	Occupational Health	The promotion and maintenance of physical and mental health in the work environment.	Employee Health,Industrial Health,Industrial Hygiene,Occupational Safety,Health, Industrial,Hygiene, Industrial,Safety, Occupational,Health, Employee,Health, Occupational
D017116	Low Back Pain	Acute or chronic pain in the lumbar or sacral regions, which may be associated with musculo-ligamentous SPRAINS AND STRAINS; INTERVERTEBRAL DISK DISPLACEMENT; and other conditions.	Lumbago,Low Back Ache,Low Back Pain, Mechanical,Low Back Pain, Posterior Compartment,Low Back Pain, Postural,Low Back Pain, Recurrent,Low Backache,Lower Back Pain,Mechanical Low Back Pain,Postural Low Back Pain,Recurrent Low Back Pain,Ache, Low Back,Aches, Low Back,Back Ache, Low,Back Aches, Low,Back Pain, Low,Back Pain, Lower,Back Pains, Low,Back Pains, Lower,Backache, Low,Backaches, Low,Low Back Aches,Low Back Pains,Low Backaches,Lower Back Pains,Pain, Low Back,Pain, Lower Back,Pains, Low Back,Pains, Lower Back
D018482	Muscle, Skeletal	A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.	Anterior Tibial Muscle,Gastrocnemius Muscle,Muscle, Voluntary,Plantaris Muscle,Skeletal Muscle,Soleus Muscle,Muscle, Anterior Tibial,Muscle, Gastrocnemius,Muscle, Plantaris,Muscle, Soleus,Muscles, Skeletal,Muscles, Voluntary,Skeletal Muscles,Tibial Muscle, Anterior,Voluntary Muscle,Voluntary Muscles