[Elaboration of rational schedules of work and rest for excavation and drilling machine operators]

Operators of excavators, boring machines could be considered as exposed to vibration at work. Methods preventing occupational diseases among those workers should include general medical and management procedures as well as rational work schedules. The authors suggest shift-related and changeable schedules of work and rest, based on timing and half-year analysis of work output. When put into practice, the schedule could lower the total vibration zone to the allowable one and relieve fatigue. Length of service in the occupations should be limited by 5-7 years.