Table 1

Orthogonal projections of variables onto PC₁ for participants in both groups during the recovery phase.

1PC group					2PCs group
ID	FeO₂	FeCO₂	HR	VE	ID	FeO₂	FeCO₂	HR	VE
1	-0.80	0.87	0.92	0.88	7	-0.26	-0.21	0.89	-0.21
2	-0.82	0.72	0.77	-0.66	8	-0.84	0.84	0.08	-0.05
3	-0.86	0.89	0.90	0.81	9	-0.35	0.44	0.83	0.87
4	-0.70	0.81	0.94	0.89	10	0.47	0.09	0.95	-0.96
5	-0.71	0.89	0.75	0.76	11	0.14	0.20	0.96	0.96
6	-0.70	0.87	0.92	0.84	12	0.03	0.50	0.96	0.96
					13	-0.06	0.84	0.98	0.98
					14	0.93	-0.94	-0.08	0.11
					15	0.23	0.39	0.96	0.95
Median	-0.78*	0.87*	0.91	0.83	Median	0.03*	0.39*	0.95	0.87
IQR	0.11	0.06	0.12	0.10	IQR	0.49	0.41	0.13	1.01
Note: *p < .05; FeO₂, expired fraction of O₂; FeCO₂, expired fraction of CO₂; HR, heart rate; VE, expired minute volume.