M. Afschrift

Springs vs. motors: Ideal assistance in the lower limbs during walking at different speeds

This study simulates optimal assistive moments for lower limb joints during walking at different speeds using motor-based and spring-based actuation modes, finding that motor-based assistance more effectively reduces metabolic rates than spring-based assistance.

A dynamic foot model for predictive simulations of gait reveals causal relations between foot structure and whole body mechanics

This paper develops a dynamic foot model to simulate gait and identifies key foot properties that influence walking mechanics and energy efficiency.

Assisting walking balance using a bio-inspired exoskeleton controller

This paper presents a bio-inspired exoskeleton controller that improves walking balance and reduces muscle activity by mimicking human neural control mechanisms.

Modeling toes contributes to realistic stance knee mechanics in three-dimensional predictive simulations of walking

This study shows that modeling toes and metatarsophalangeal joints improves stance knee mechanics in predictive walking simulations, but not ankle plantarflexion.

Ultrasound-based optimal parameter estimation improves assessment of calf muscle-tendon interaction during walking

This study introduces an optimal estimation algorithm to estimate calf muscle-tendon parameters during walking, showing improved accuracy and reduced metabolic energy cost compared to generic parameters.