Week 4 Readings + Guest Material Flashcards
What type of methodology has this study used to determine TLVs?
Metaanalysis of 8 psychophysical studies of manual upper extremity tasks
Developed an equation to characterize relationship between maximum acceptable efforts and duty cycle
Calculating maximum voluntary efforts by dividing average psychophysics-based acceptable loads by corresponding single-effort maximum strength using 69 values from studies of the upper extremities
What was the objective of the Potvin study?
Predicting Maximum Acceptable Efforts for Repetitive Tasks - An Equation Based on Duty Cycle
Develop an equation for repetitive tasks that uses frequency and/or duty cycle (DC) to predict maximum acceptable efforts (MAE) relative to maximum voluntary efforts (MVE)
What is a “psychophysical” study?
Study that controls a number of variables and allow the respondent to set acceptable levels of force, torque, rest period, or frequency, usually based on an 8-hr workday
How does Potvin define “duty cycle”?
Why is “duty cycle” important?
Duty cycle: total effort duration divided by cycle time
Percentage of time an individual is engaged in effort to complete a task.
For example, if a worker performs 10 thumb push efforts within each 65-s cycle and each effort is 0.55 s in duration, then the DC is (10 efforts/cycle × 0.55 s/effort)/65 s per cycle, or DC = 0.085 (8.5% of each cycle)
Helps to measure musculoskeletal disorder risk related to task
Bill 41
employers and workers have a legal duty to cooperate in timely and safe return to work, and certain employers are required to maintain employment with their injured workers in specific circumstances
circumstances: Worker has at least 1 year with the company and 20 employers
The provisions apply to claims with injury dates before January 1, 2024, in certain circumstances.
The duty to cooperate applies to claims with injury dates up to two years before the January 1 effective date, while the duty to maintain employment provision applies to claims with injury dates up to six months before the effective date.
Duty to cooperate meaning
The duty to cooperate creates obligations for workers and employers to cooperate with each other, and with WorkSafeBC, to identify and make suitable work available to workers in a timely and safe manner following an injury.
The worker must also work with the employer to identify suitable modified job duties. If the worker can no longer perform their pre-injury job, but is otherwise fit to work in another capacity, they must not unreasonably refuse suitable work when it has been made available by any employer.
Duty to maintain employment
Under the amendment, an employer who regularly employs 20 or more people and has employed the injured worker for at least one year before their injury has an obligation to maintain that worker’s employment.
If a worker is fit to return to their pre-injury work, the employer is required to offer either that pre-injury work or a comparable alternative.
what was OR1 and 2 replaced with?
customized recovery and return to work program
What happens when an injured worker is terminated?
Presumption of termination based on injury until proven otherwise
Provide evidence to rebut otherwise there is penalty
Re-employment benefits up to a year if proved it was due to injury
