FleXo: a flexible passive exoskeleton optimized for reducing lower back strain in manual handling tasks.

Area of Science:

• Occupational health
• Ergonomics
• Biomechanics

Background:

• Musculoskeletal disorders, especially low back pain, are prevalent occupational health issues globally.
• Repetitive manual material handling tasks increase the risk of lower back pain for workers.
• Significant personal suffering and economic burdens are associated with these disorders.

Purpose of the Study:

• To introduce FleXo, a lightweight, flexible, and passive back-support exoskeleton.
• To reduce lower back strain during lifting tasks while maintaining user mobility.
• To balance functionality and user comfort through multi-objective design optimization.

Main Methods:

• Development of FleXo using an advanced multi-objective design optimization approach.
• Validation of FleXo through user feedback in repetitive task simulations.
• Evaluation of perceived physical effort, user satisfaction, and well-being.

Main Results:

• FleXo demonstrated a reduction in perceived physical effort during lifting tasks.
• User feedback indicated enhanced satisfaction and improved employee well-being.
• The exoskeleton promotes workplace safety and has the potential to decrease injuries and associated costs.

Conclusions:

• FleXo is an effective passive exoskeleton for reducing lower back strain in occupational settings.
• The design prioritizes both ergonomic support and user comfort, validated by user feedback.
• Implementation of FleXo can lead to significant benefits in workplace safety, injury reduction, and cost savings.