6MWT	GOLD2 (mean)	GOLD 3 (mean)	GOLD 4 (mean)
Distance walked (m)	363±99	381±95	344±95
Predicted distance (%)	62±16	56±12	53±16
ODI (%)	4±3	6±4	9±6
BDI	2±3	3±2	3±2
M-HR (bpm)	113±21	110±13	108±19