Stiffness optimal modulation of a variable stiffness energy storage hip exoskeleton and experiments on its assistance effect

HIGHLIGHTS

SUMMARY

When subject 3 was assisted by the optimal stiffness, the effect of exoskeleton on reducing the fatigue degree of RF was better than that of random stiffness, and the effect on reducing the fatigue degree of BF was between two random stiffness. For subject 4, with the assistance of stiffness 1, optimal stiffness, and stiffness 2, the fatigue of RF increased by 0.8%, decreased by 11%, and decreased by 5.3% respectively, while the fatigue of BF decreased by 0.5%, 2.0%, and increased by 1.1% respectively. For subject 5, with . . .

 



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