Friedl De Groote

Simulations predict that alterations in balance control contribute to the higher cost of walking with a prosthesis

The paper uses simulations to show that passive prostheses increase walking effort for both propulsion and stabilization, while active prostheses reduce effort but require full sensory feedback to fully restore metabolic cost.

The effects of muscle fibre type distribution on gait biomechanics: A predictive simulation study

This study predicts how muscle fibre type distribution affects gait biomechanics and metabolic cost across different locomotion speeds.

A comparative analysis of co-contraction indices using synthetic EMG data: Implications for selection and interpretation

This paper evaluates six co-contraction indices using synthetic EMG data to classify them into categories and provide recommendations for their use based on their sensitivity to different EMG features.

Experiment-free learning of exoskeleton assistance remains an unsolved problem

The paper critiques a study claiming experiment-free exoskeleton control via simulation, highlighting unverified claims and physiological inconsistencies.

Stochastic optimal control simulations of walking: potential and perspective

This paper uses stochastic optimal control simulations to study how sensorimotor noise affects walking variability and control strategies, finding that effort minimization shapes gait patterns.

Speeding up, not slowing down, decreases the energy needed to control walking balance

This study investigates how walking speed affects the metabolic cost of balance control, finding that faster speeds reduce the energy needed to stabilize walking.

Benchmarking the predictive capability of human gait simulations.

This study evaluates how well simulations of human gait predict movement mechanics and metabolic power under various conditions, finding underestimation in metabolic power and identifying potential model errors.

Biophysical model for predicting muscle short-range stiffness during movement

This paper develops a biophysical cross-bridge model to predict muscle short-range stiffness during movement, finding that cooperative myofilament activation is essential for accurate predictions.

Estimating the contribution of musculoskeletal impairments to altered gait kinematics in children with cerebral palsy using predictive simulations

This study uses predictive simulations to assess how musculoskeletal impairments affect gait in children with cerebral palsy, finding that these impairments explain up to 39% of kinematic deviations.

Smaller stepping thresholds in older adults might be related to reduced ability to suppress conflicting sensory information

This study finds older adults step at smaller postural disturbances due to reduced ability to suppress conflicting sensory information, not reduced sensory acuity or strength.

Accuracy-speed-stability trade-offs in a targeted stepping task are similar in young and older adults

The paper evaluates accuracy-speed-stability trade-offs in stepping tasks between young and older adults, finding no age differences in trade-off magnitudes but linking lower stability to reduced accuracy in older adults.

An approximate stochastic optimal control framework to simulate nonlinear neuromusculoskeletal models in the presence of noise

This paper introduces an approximate stochastic optimal control framework that simulates nonlinear neuromusculoskeletal models with noise, showing how muscle coordination and movement patterns emerge from dynamic interactions.

Age-related balance difficulties during shoulder checks increase cycling risk in older adults

This study finds older adults make more errors and show greater balance variability during shoulder checks while cycling, contributing to higher single-sided bike accident risk.

Similar sensorimotor transformations control balance during standing and walking

This study shows that similar sensorimotor transformations control balance during standing and walking, using delayed feedback of center of mass kinematics.