Administrative controls reduce exposure but do not address the source of risk. Job rotation can reduce risk by increasing task variety, but tasks must differ enough that different muscle groups are used so they recover, and combining two or more tasks for one worker may help, with the workstation and items altered accordingly. Regular rest breaks help prevent or recover from fatigue where tasks involve repetitive awkward or sustained postures, high force, vibration, long duration, or high mental demand or monotony combined with manual tasks such as inspection work. Frequency and duration depend on the task: the greater the force or the longer a posture is held, the more recovery time is needed. More frequent shorter breaks are better than fewer long ones, and micro-pauses built into task design, such as setting tools down between operations, removing hands from keyboards or staggering tasks across the shift, also help.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.