Céline Chatigny | PubMed Health

PubMed2005

Qualitative research using numbers: an approach developed in france and used to transform work in north america.

Qualitative research is often opposed to quantitative research. But numbers can play an important role in illustrating analyses in qualitative research. Their persuasive, concrete nature can help ensure the success of a workplace intervention, especially in the North American context, where numbers are treated very seriously. We describe a method of work analysis and transformation developed at the Conservatoire national des arts et métiers in Paris, where the meaning of the numbers used is critical. We think that the numbers used in work analysis have a different meaning from that in a "pure" quantitative study, where they are submitted to statistical procedures for hypothesis testing. Using examples from recent studies carried out in Québec and Canada in collaboration with unions or joint health and safety committees, we show that counting can be part of qualitative analysis, enrich our portrait of organizational and physical aspects of the work process, and help indicate pathways for workplace improvement.

Journal Article↗

PubMed1995

Repetitive Strain in Nonrepetitive Work: A Case Study.

In a Québec factory, a woman in a nontraditional job suffered from epicondylitis whereas her male coworkers were unaffected. A study was undertaken in order to enumerate the operations at risk for epicondylitis. Workers were interviewed in order to identify difficult operations and systematic observations were done over 4 work days. Although tasks were extremely varied, certain movements at risk for epicondylitis were repeated many times. Fifty-three valves were turned against resistance as part of this job, and one valve requiring a particularly difficult movement was turned 20 times in one day. There were at least 61 operations at risk for epicondylitis per day over a 4-day period. Strain on the elbow joint was particularly intense for the woman worker because the design of the workplace gave an advantage to taller workers with larger hands. Although this case study does not permit us to conclude that the worker's epicondylitis was due to her job, it enables us to suggest that it would be wise to adapt the dimensions of relevant equipment and worksites to a wider range of potential worker sizes. We also raise some questions about the definition of repetitive strain in epidemiological studies. We suggest that it may be necessary to consider not only the cycle time but also the total of forces exerted on a joint in order to study workplace injuries to the musculoskeletal system.

case study↗