The Claim
In healthy adults using a soft actuated back exosuit during repetitive lifting, increased mental demand and frustration were observed in two out of three participants, despite reduced physical exertion, suggesting that device complexity or interference may elevate perceived cognitive load.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When healthy adults used a soft robotic back suit to lift repeatedly, two out of three reported higher mental stress and frustration, even though their physical effort decreased.
See the scientific wording
In a pilot study of four healthy adults, a soft actuated back exosuit was associated with increased mental demand and frustration in two out of three participants during repetitive lifting, despite reductions in physical exertion, indicating that perceived cognitive load may increase due to device complexity or interference.
When a device helps lift by reducing muscle effort, the body feels physically lighter, but the brain gets conflicting signals: the muscles aren't working hard, yet the device moves unpredictably and makes noise. This confuses the brain's sense of control, forcing it to pay more attention to how the device works instead of the task, which increases mental strain and frustration.
What the research says
1 studySome people felt the back device made lifting easier physically, but two out of four also felt more frustrated or mentally stressed — probably because the device was awkward or noisy. The study saw the same thing.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.