The article examines the use of video-based ergonomic job analysis to systematically identify hazards thought to result in work-related musculoskeletal disorders. The identification of ergonomics problems via systematic analysis of video recordings that are made on a sample of work. Little attention has been given to ensuring that videos contain a representative sample of the biomechanical stressors that are likely to vary from one person to another, and over time with different work methods or productivity demands.