Daniel Ludvig

This study quantifies how triceps surae and Achilles tendon contribute to ankle stiffness during posture and movement, finding that muscle stiffness decreases during movement, leading to more equal contributions from both structures.

This study measures shear moduli of skeletal muscle along and across muscle fibers in rats, finding no significant difference but greater anisotropy at higher strains.

This study examines how uni- and bidirectional haptic interactions affect motor performance and muscle activation during wrist and ankle tracking tasks, finding mutual benefits in bidirectional interaction across limbs.

This study finds that aging does not change muscle or tendon stiffness at matched loads but reduces stiffness at matched effort due to decreased strength.

This study examines how stretch reflex sensitivity in elbow muscles depends on agonist and antagonist muscle activity during movement and posture, finding a balance of control not observed during posture.

The paper shows that aligning tasks with ankle joint mechanics reduces muscular effort and improves task performance and perception of ease.