Fig. 5From: The Arm Movement Detection (AMD) test: a fast robotic test of proprioceptive acuity in the armMean detection threshold (TH) vs. age for the NIC participants. There is a slight but significant increase in the threshold with increasing age (THÂ =Â 0.090Â +Â 0.003*Age). Blue circles: younger; Green: middle-young; Red: middle-old; Purple: olderBack to article page