Attenuation of Upper Body Accelerations during Gait: Piloting an Innovative Assessment Tool for Parkinson’s Disease

Table 3

The mean (±SD) Harmonic ratios normalised to gait speed for the PD and the control participants calculated at the head (H), shoulder (S), and the pelvis (P) levels.

Sensor location	Component	PD	Control	(-test)
H	AP	0.71 ± 0.36	0.53 ± 0.23	0.11
	ML	1.22 ± 0.56	1.02 ± 0.38	0.27
	V	2.03 ± 0.57	2.18 ± 0.60	0.50
S	AP	0.70 ± 0.23	0.66 ± 0.22	0.64
	ML	0.80 ± 0.50	0.80 ± 0.22	0.95
	V	2.34 ± 0.77	2.51 ± 0.72	0.55
P	AP	1.22 ± 0.38	1.13 ± 0.48	0.61
	ML	1.05 ± 0.69	0.80 ± 0.38	0.22
	V	2.02 ± 0.60	2.17 ± 2.17	0.58

H: head; S: shoulder level; P: pelvis.
AP: anterior/posterior; ML: medial/lateral; V: vertical.