Came across this word while looking through Code of Practise for Access and Workings Scaffolds (IRL). (quote) This principle refers to the design of places of work and ergonomic considerations of the individual, for example in the case of scaffolding erection the choice of equipment and method used should take into account the possible effect of repetitive stress on the health of the individual. Does that mean that there has been a study done on the use of the scaffstep.