diagnosed with PD by a neurologist (Fahn and Elton, 1987); 
aged 30 to 85 years; 
at modified Hoehn and Yahr (H&Y) stage 1.5 to 3 (Hoehn and Yahr ,1967; Goetz et al., 2004); 
able and willing to give written consent for participation in the study; 
living at home in the community; 
able to walk independently for 30 metres with or without an assistive device. 

NCT01799681_inc_T1
Condition
PD
NCT01799681_inc_T2
Qualifier
by a neurologist
NCT01799681_inc_T4
Person
aged
NCT01799681_inc_T5
Value
30 to 85 years
NCT01799681_inc_T6
Measurement
modified Hoehn and Yahr (H&Y)
NCT01799681_inc_T7
Value
stage 1.5 to 3
NCT01799681_inc_T10
Observation
living at home in the community
NCT01799681_inc_T11
Condition
able to walk independently with or without an assistive device
NCT01799681_inc_T12
Multiplier
for 30 metres