Germain Valentin Faity

Force Reserve Predicts Compensation in Reaching Movement with Induced Shoulder Strength Deficit

The paper shows that a 40% shoulder force reserve predicts compensatory trunk movements during reaching with shoulder strength deficits, outperforming traditional control models.

The reserve of joint torque determines movement coordination

The paper shows that humans use trunk movement to increase shoulder torque reserve when reaching with an additional load, suggesting a strategy to minimize movement cost.

Proximal arm non-use optimises movement when the shoulder is weak: consequences for stroke patients

The paper shows that shoulder weakness leads to proximal arm non-use during movement, which can be adaptive, and suggests different treatments for psychological vs. physiological non-use.