Adamantios Arampatzis

Spatiotemporal modulation of a fixed set of muscle synergies during unpredictable and predictable gait perturbations in older adults

The paper examines how older adults adjust muscle synergies during gait perturbations, finding that four core synergies are preserved but modified in timing and muscle contribution.

Sex-specific tuning of modular muscle activation patterns for locomotion in young and older adults

This study examines sex-specific differences in muscle activation patterns during locomotion in young and older adults using muscle synergies.

Muscle activation patterns are more constrained and regular in treadmill than in overground human locomotion

This study compares muscle activation patterns during treadmill and overground locomotion, finding that treadmill movement results in more regular and temporally shifted motor primitives.

Lower complexity of motor primitives ensures robust control of high-speed human locomotion

The paper investigates how muscle synergies change with locomotion speed, finding that high-speed movement uses simpler, wider motor primitives for robust control.

Enthalpy efficiency of the soleus muscle explains improvements in running economy

This study shows that increased enthalpy efficiency of the soleus muscle during running explains improved running economy after training.

Humans exploit robust locomotion by improving the stability of control signals

This study shows that older adults and those facing perturbations produce more stable muscle control signals during locomotion, enhancing robustness in challenging conditions.

Modular organization of the murine locomotor pattern in presence and absence of sensory feedback from muscle spindles

The paper examines how muscle spindle feedback affects the modular organization of locomotion in mice, showing that proprioceptive input is crucial for maintaining motor function during walking and swimming.