Feedback on the Use of Exoskeletons

The integration of exoskeletons in the construction and public works sector (BTP) remains a topic of debate among professionals. For some, these devices offer an obvious solution to physical strain, while others highlight limitations regarding their health impact. A study commissioned by Hilti—a well-known brand of tools, fastening systems, and software for the construction industry—reveals both positive health effects for workers and certain usage limitations.

A Study Commissioned by Hilti to Evaluate Exoskeleton Effectiveness

Hilti commissioned a study to evaluate the effectiveness of its exoskeletons in preventing musculoskeletal disorders (MSDs) in the construction industry. The aim was to assess the medium-term effects of exoskeleton use on workers' health and to analyze the factors influencing the acceptance of such equipment.

A Study Based on User Feedback

The exoskeleton under review was designed to assist workers performing tasks that require arms—or even elbows—to be raised above shoulder level, as is often the case for drywall installers, electricians, or masons.

These devices are intended to reduce strain on the shoulders and back during prolonged work in awkward positions. The study involved employees from companies of various sizes, from SMEs to large corporations, and focused on a usage period ranging from six to twelve months.

The study’s findings are primarily based on user feedback. The goal was to determine whether the exoskeleton improves worker health without harmful side effects, while also examining its potential impact on productivity.

Results: Reduced Pain During Physically Demanding Tasks

The results show notable improvements for workers using the exoskeleton, particularly concerning upper limb and spinal pain. Operators reported reduced shoulder and lower back pain, confirming the exoskeleton’s effectiveness in relieving mechanical strain during demanding work.

However, results varied based on the intensity and duration of use. On average, workers used the exoskeleton for 120 minutes per day, but usage ranged from as little as 10 minutes to over 5 hours, depending on the nature of the tasks and construction sites. In some cases, usage was intermittent due to the variable nature of the work.

Exoskeletons: The Need for a Well-Managed Support Phase

The study suggests that certain optimal conditions must be in place to ensure successful integration of exoskeletons into daily work. It recommends a carefully managed support phase and a preliminary diagnosis of workers’ specific needs.

While productivity was not significantly impacted, the primary goal of this initiative remains the prevention of MSDs. From this perspective, exoskeletons could become an important tool in the fight against musculoskeletal disorders in the construction sector.

Thus, while emphasizing the need for continued research to refine the use of such equipment, this study paves the way for broader adoption of exoskeletons as part of a preventive and safety-focused approach to workplace health.