Feedback on the use of exoskeletons

The integration of exoskeletons in the construction and public works (C&P) sector is still a matter of debate among professionals. For some, these devices represent an obvious solution to physical constraints, while others highlight the limitations in terms of health impacts. A study commissioned by Hilti, a renowned brand of tools, fastening systems, and software for the construction industry, highlights the positive effects on operators' health as well as certain limitations of use.

Hilti has commissioned a study to assess the effectiveness of its exoskeletons in preventing musculoskeletal disorders (MSDs) in the construction industry. The objective of this study is to assess the medium-term effects the use of these exoskeletons on the health of operators and to analyze the acceptance factors of this equipment.

A study based on feedback from exoskeleton users

The exoskeleton studied was developed to assist operators in tasks where the arms, or even the elbows, are raised above shoulder height, as is often the case for plasterers, electricians or masons.

These devices are designed to relieve shoulder and back joints during long periods of work in awkward positions. The study was conducted among employees in companies of varying sizes, from SMEs to large corporations, and focused on a period of use ranging from six to twelve months.

The study's results are based primarily on user feedback. The goal was to determine whether the exoskeleton improves operator health without adverse side effects, while also investigating the potential impact on worker productivity.

Results: Reduced pain during strenuous tasks

The results show significant improvements for operators using the exoskeleton, particularly with regard to upper limb and spine pain. Indeed, operators reported a reduction in shoulder and lower back pain, confirming the exoskeleton's effectiveness in relieving the mechanical stress associated with difficult work tasks.

However, results vary depending on the intensity and duration of use. On average, operators used the exoskeleton for 120 minutes per day, but the duration of use ranged from 10 minutes to more than 5 hours, depending on the task and site. In some cases, use was intermittent due to the changing nature of the work.

Exoskeleton: plan a careful support phase

The study suggests that certain optimal conditions of use must be met to ensure the successful integration of exoskeletons into everyday work. It therefore proposes a careful support phase and a preliminary diagnosis of the specific needs of workers.

Although operator productivity was not significantly affected, the main objective of this approach remains the prevention of MSDs. In this regard, the exoskeleton could become an important element in the fight against musculoskeletal disorders in the construction sector.

Thus, while highlighting the need for continued research to refine the use of this equipment, this study opens the way to a wider adoption of exoskeletons, with a view to prevention and safety at work.