People get the most injuries at work due to manual handling. Things like back problems and other musculoskeletal disorders are over a 1/3 of all injuries. You can see the statistics here:
www.hse.gov.uk/statistics/causdis/musculoskeletal/index.htm
For manual handling training please visit: http://www.oasystss.co.uk/training-detail/Manual-Handling-Awareness-training-course-full-day-programme/279