In many off-road driving environments, there is a requirement for the operator to maintain a seated posture with a rotated trunk to enable monitoring of the work surface to the rear, e.g. agricultural operators, forklift truck drivers and mining operators. In addition, the nature of the working surfaces means that the operators are also exposed to vibration transmitted through the vehicle and seat to the operator, known aswhole-body vibration (WBV).The effects of both the single and combined exposures have been investigated to some extent in the literature. However little consideration has been given to the level of agreement in the literature combined with the knowledge of experts.