The detailed documentation of the examined work shifts permitted selleck chemicals whole-shift analyses with respect to the daily exposure to the knee. As our validation analysis has shown, the combination of measuring data and information delivered by diaries or schedules can be a promising approach to obtain valid data with less resources being required. For this selective procedure, we consulted technical experts as detailed knowledge of the analysed tasks is essential. Conclusion As knee-straining postures seem to vary to a great extent within a job category, we suggest assessing such activities task-specifically, both for preventive purposes

and for exposure assessment. For the latter case, the use of task-based measurement data in combination with diary FK228 price information may be a promising choice to find a compromise between valid information and cost efficiency. Acknowledgement We would like to thank Gerald Rehme (BG BAU) as the representative for all staff members of the German Social Accident Insurance companies who contributed to the measurements (BGHM, BGRCI, BG Verkehr) and Eva-Maria Burford (IFA) for assistance with the language. The work of the Institute of Occupational and Social Medicine and Health Services Research Tuebingen is supported by an unrestricted

grant of the Employers’ Association of the Metal and Electric Industry Baden-Wuerttemberg, Suedwestmetall. Conflict of interest The authors declare that they have no conflict of interest. Open AccessThis article is distributed under the terms of the Creative PAK5 Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. References Baty D, Buckle PW, Stubbs DA (1986) Posture recording by direct observation questionnaire

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