Physical Activity, Fatigue, and Sleep in People with Parkinson’s Disease: A Secondary per Protocol Analysis from an Intervention Trial

Table 4

Objective physical activity levels of participants following a 24-week exercise intervention averaged over one eight-hour overnight and one four-hour periods.

	Exercise				Handwriting
	Before	After	Z	ES	Before	After	Z	ES
24.00–08.00
SED	0.76	0.89	−2.000	0.26	0.67	0.89	2.906	0.34
LIGHT	0.20	0.09	−2.108	0.28	0.28	0.09	−2.828	0.33
MOD	0.01	0	−1.658	0.22	0.01	0	−2.080	0.25
VIG	0	0	−1.734	0.23	0	0	−1.821	0.21
20.00–24.00
SED	0.63	0.71	−2.389	0.31	0.68	0.73	2.121	0.25
LIGHT	0.24	0.18	−2.433	0.32	0.21	0.14	−1.579	0.19
MOD	0	0.01	−1.622	0.21	0.01	0.01	−0.688	0.08
VIG	0	0	0	0	0	0	−0.307	0.04

The exercise intervention consisted of both aerobic and anaerobic exercise training for 60 minutes, twice a week for 24 weeks. Values are medians of fraction of time spent at each level of activity using an accelerometer. A Wilcoxon signed rank test was used to determine differences between pre- and postintervention followed by a Mann–Whitney test for between-group differences, with and , respectively. Effect sizes (ES) were calculated using the equation r = Z/√N. SED, sedentary activity level; LIGHT, light activity level; MOD, moderate activity level; VIG, vigorous activity level.