ROBOTIC SUIT OR HARNESS SYSTEM – WHAT EXACTLY ARE EXOSKELETONS?
Exoskeletons are wearable, body-hugging assistive devices that mechanically support or relieve the musculoskeletal system. They can operate either actively, using electric, hydraulic, or pneumatic drives, or passively, using mechanical elements such as springs, levers, or resistance bands.
Contrary to what the colloquial term “robot suit” often suggests, these are not necessarily complex, fully automated machines. Passive models do not require their own power source and instead simply follow the wearer’s movements.
Exoskeletons can thus be understood as an extension of the body: they specifically influence movement patterns to reduce strain, stabilize certain body regions, or make movements more efficient.
BACKGROUND INFORMATION: WHERE DO EXOSKELETONS COME FROM?
The term “exoskeleton” originally comes from biology. In nature, exoskeletons have served as proven protective and supportive structures for millions of years. Unlike humans, who have an internal skeleton (endoskeleton), many animals — such as insects, spiders, and crustaceans — have an exoskeleton, that is, a hard outer shell.
A vivid example is the crab: Its shell serves not only as a protective shield against predators but also as a stabilizing framework to which its muscles attach. This allows it to generate astonishing strength while moving with flexibility.
This principle has inspired technology: Exoskeletons for humans are not rigid shells, but wearable support systems that relieve or reinforce the musculoskeletal system.
While nature primarily offers protection and stability, exoskeletons apply this concept to occupational safety, ergonomics, and rehabilitation. So it can be said: Nature had the idea long before we did—we use it today to support health and performance in our daily work and lives.