Force: Performing essentially the same motion or motion patter over and over again
with little variation in task assignment. Repetitive motion task often involve
the use of only a few muscles, tendons and body parts, which can become strained
when the same motion is repeated frequently (i.e., every few seconds) for
prolonged periods (e.g., several house at a time, the entire workshift,
day after day) without adequate recovery time. The severity of risk depends on
how often the motions are repeated, the speed of the motions, the force required
to perform the motions, and the number of muscles involved.
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