work hardening

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work hardening

 
a rehabilitation program designed to restore functional and work capacities to the injured worker through application of graded work simulation. Included are activities designed to improve overall physical condition, including strength, endurance, and coordination specific to work activity, as well as means for coping with any remaining symptoms from the original problem, such as pain. Central to all work hardening programs is the reproduction of a work-like environment where tasks are designed to improve the patient's tolerance for productive work.



The goal of work hardening is to achieve an acceptable level of productivity for returning to one's former occupation or for meeting the demands of a specific new type of work. Therefore, worker behaviors and not just physical conditioning are addressed. These include having structured work times and duties, dressing appropriately for one's tasks, and conducting oneself in a worker-like manner. It is important to differentiate work hardening from work conditioning, which does not address these added concerns.
Treatment Personnel. Work hardening is generally administered by physical or occupational therapists, working independently or as part of a team, which might include physicians, vocational counselors, psychologists, and other rehabilitation professionals. Drug and alcohol specialists, ergonomists, orthotists, dieticians, and industrial nurses may also be involved in the program.
Settings. Work hardening programs can be found in rehabilitation and general acute hospitals, private physical or occupational therapy centers, vocational training facilities, and fully dedicated facilities or within private industry. When found in hospitals or therapy centers, programs either share space with other rehabilitation programs (mixed-use setting) or are in partitioned areas designed specifically for the purpose (dedicated space setting). Fully dedicated facilities, whose only use is work hardening activity, are generally thought to offer the best environment for worker rehabilitation since they provide the nearest reproduction of actual work experience.

work hard·en·ing

(wŏrk hahr'dĕn-ing)
A multidisciplinary program where actual work tasks are performed to rehabilitate an injured worker in preparation for a return to the job.
See also: work conditioning

work hard·en·ing

(wŏrk hahr'dĕn-ing)
A multidisciplinary progam where actual work tasks are performed to rehabilitate an injured worker. The focus of therapy is to stimulate a regular work routine where therapy is regimented as a precursor to return to work.
See also: work conditioning
References in periodicals archive ?
where [sigma] - is the true stress, [epsilon] is the true strain, [[sigma].sub.0] is the yield stress, E is the elastic modulus, [[epsilon].sub.0] = [[sigma].sub.0]/E is the corresponding reference strain, a is a dimensionless constant, and n defines the strain-hardening exponent.
As well as, using post-failure tensile stress-displacement or tensile stress-fracture energy relations, it is not possible to evaluate strain-hardening effect of tensile UHPFRC, and the material model has to be simplified.
Gao, "A general analytical solution of a strain-hardening elastoplastic plate containing a circular hole subject to biaxial loading-with applications in pressure vessels," International Journal of Pressure Vessels and Piping, vol.
The strain-hardening exponent (n-value) of the prestrained specimens was measured according to the ASTM-E8 standard.
The PVA fibers with a diameter of 39 [micro]m and a length of 8 mm are purposely manufactured with a tensile strength (1620 MPa), elastic modulus (42.8 GPa), and maximum elongation (6.0%) matching those needed for strain-hardening performance.
In the same way, there is a tendency to observe cyclic hardening if the monotonic strain-hardening exponent (n) is higher than 0.2; cyclic softening can be observed if n is lower than 0.1.
As a result of the tensile strain-hardening response, ECC is highly damage-tolerant and can absorb a substantial amount of energy before fracture localization.
According to Bazant [18], the failure of structure is related to strain-softening and strain-hardening condition due to crack distribution.
The L-PP does not show any strain-hardening behaviour, as expected.
Lee Wu M.H.(1950) "Analysis of plane-plastic stress problems with axial symmetry in strain-hardening range", Report 1021, NACA
This fact may be caused by the approximation used for describing the strain-hardening behaviour in the FEA model.
A high modulus region is followed by a prominent yield, then a draw region, and finally a strain-hardening region.