Needle-less Injector Study Web Tool

About the Creation of this Tool

This tool was developed as part of a research study on technology adoption in the swine industry. This study was designed to investigate the implementation of needle-less injectors in terms of cost, productivity, injury rates, biomechanical exposures, and worker preference; and develop a suite of decision-making tools for evaluating the occupational health and safety benefits, as well as business impacts, of new technologies (see the full published study protocol ). The original study investigated the difference between needle and needle-less injection in several ways:

  1. Ergonomic Exposure Assessment: Sixteen 2- to 4-hour assessments was made on swine workers performing injection tasks with both injection methods. Muscle activity (EMG), gripping force, and upper limb posture were measured throughout the time.

  2. Productivity Analysis: Video recordings during the exposure assessments was compared with the duration and repetition for each injection method using time and motion methods.

  3. Injury Records: WCB claim and incident report data from up to 60 pig barns in Saskatchewan and Manitoba was analyzed for needle-stick and musculoskeletal injuries pre and post adoption of needle-less injectors.

  4. Management Interviews/Worker Focus Groups: Workers and managers were interviewed on what they like and dislike about each method, as well as what helps and hinders successful implementation.

  5. Economic Analysis: The information above was inputted into a cost-benefit model to determine the net benefits of needle-less injectors in terms of occupational health, worker preference and the financial ‘bottom line’ of the farm.

  6. Integrated Knowledge Translation: Industry stakeholders and key partners were involved in study planning and interpreting findings through stakeholder meetings.

You can read more about the findings of the study on the University of Saskatchewan Ergonomics Lab website.

This research project was conducted with the support of the Workers’ compensation Board of Manitoba 2015 Research and Workplace Innovation Program (RWIP) Project titled "Development of a Comprehensive Toolkit for Evaluating Workplace Musculoskeletal Injury Interventions: Swine Injection Technologies as a Test Case". This research was supported in part by the Canada Research Chairs program [#228136].

The Research Team was led by Catherine Trask of the Canadian Centre for Health and Safety in Agriculture and the University of Saskatchewan. The research team also included:

We are grateful for the ongoing participation and collaboration of the stakeholder advisory group for this project. The stakeholder members were:

The formula and its assumptions

Economic analysis can get very complicated with many inputs. To keep this tool simple and usable, we have made several assumptions:

Questions, comments, suggestions, or edits for this document?

Please contact:

Abisola Omoniyi
Research Assistant
Canadian Center for Health and Safety in Agriculture (CCHSA)
Phone: 306-966-5971

Catherine Trask
Associate Professor & Principle Investigator
Canadian Center for Health and Safety in Agriculture (CCHSA)
Phone: 306-966-5544