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Why create the virtual motion simulator?

• Motion is caused by internal and external forces
  • internal forces are the muscle forces generated by human body
  • external forces are the forces applied on human body, for instance, ground reaction forces, Gravity, contact forces.
• external forces contribute to the motion based on skeleton system.
• Wearable exoskeleton can generate the same effect of external force (in joints' level), just as Haptx was conducted.
• Assistance → Resistance

(Haptx full-body haptics system)

Why not only use foot supporter?

• External force in most motions are applied under feet, but not all.
• Exoskeleton based simulator can simulate external force on any parts of body
• For instance, seated leg extension...