Table 10.

Differences between model 1 and model 2 in the estimated VO₂ based on three levels of HR-VO₂ as well as absolute and relative differences between these outcomes (means ± SD, and 95% confidence intervals (CI)) for all values

Participant	Differences between model 1 and model 2 with regard to outcomes based on HR VO2 regression equations in estimations of VO2 based on these levels of HR, and the HR–VO2 regression equations at day 1 and day 2 and the absolute and relative differences between those outcomes
	Lowest fifth of HR					Middle fifth of HR					Highest fifth of HR
	HR F1	VO2:1	VO2:2	Abs diff	% diff	HR F3	VO2:1	VO2:2	Abs diff	% diff	HR F5	VO2:1	VO2:2	Abs diff	% diff
Males
1	90	0.06	− 0.05	− 0.11	− 12.8	102	0.04	− 0.03	− 0.07	− 5.96	115	0.02	− 0.01	− 0.03	− 1.93
2	99	0.08	0.32	0.23	16.4	108	0.05	0.21	0.15	9.11	115	0.03	0.13	0.10	5.35
3	110	− 0.22	− 0.13	0.09	10.1	119	− 0.17	− 0.08	0.09	8.59	126	− 0.14	− 0.04	0.09	7.72
4	94	0.14	0.15	0.01	0.90	100	0.11	0.13	0.01	1.28	112	0.06	0.09	0.02	1.74
5	114	0.11	0.02	− 0.09	− 7.18	143	− 0.05	0.00	0.05	2.58	151	− 0.09	0.00	0.09	4.02
6	84	− 0.05	− 0.01	0.04	3.83	92	− 0.04	− 0.01	0.03	2.61	100	− 0.03	− 0.01	0.02	1.63
7	134	0.04	0.00	− 0.04	− 2.09	143	0.00	− 0.03	− 0.03	− 1.58	150	− 0.02	− 0.05	− 0.03	− 1.29
Mean	104	0.03	0.04	0.02	1.30	116	− 0.01	0.03	0.03	2.38	124	− 0.02	0.01	0.04	2.46
SD	17.2	0.12	0.15	0.12	9.95	20.7	0.09	0.10	0.08	5.33	19.5	0.07	0.07	0.06	3.49
Females
1	107	0.00	0.01	0.01	0.78	116	0.00	− 0.02	− 0.02	− 1.34	122	− 0.01	− 0.05	− 0.04	− 2.43
2	97	− 0.02	0.01	0.03	5.24	104	− 0.02	0.01	0.03	3.83	116	− 0.02	0.01	0.02	2.37
3	119	− 0.01	− 0.01	0.00	− 0.01	130	0.00	0.01	0.00	0.22	140	0.01	0.02	0.01	0.39
4	102	− 0.01	− 0.01	0.00	− 0.34	113	0.00	0.00	0.00	0.02	125	0.01	0.01	0.01	0.33
5	97	− 0.04	− 0.02	0.01	1.28	107	− 0.01	− 0.01	0.00	− 0.16	128	0.03	0.01	− 0.03	− 1.94
6	102	0.02	0.02	0.01	1.02	117	0.01	0.00	0.00	− 0.12	124	0.00	0.00	− 0.01	− 0.42
7	97	− 0.01	− 0.01	0.00	− 0.14	111	0.00	0.01	0.01	0.75	143	0.00	0.04	0.03	1.88
Mean	103	− 0.01	0.00	0.01	1.12	114	0.00	0.00	0.00	0.46	128	0.00	0.00	0.00	0.02
SD	8.2	0.02	0.02	0.01	1.92	8.6	0.01	0.01	0.01	1.62	10.0	0.02	0.03	0.03	1.79
All
Mean		0.01	0.02	0.01	1.21		− 0.01	0.01	0.02	1.42		− 0.01	0.01	0.02	1.24
SD		0.09	0.10	0.08	6.89		0.06	0.07	0.05	3.91		0.05	0.05	0.05	2.95
P value		.728	.466	.577	.522		.738	.529	.237	.198		.496	.511	.159	.139
CI lower		− 0.04	− 0.04	− 0.03	− 2.77		− 0.04	− 0.03	− 0.01	− 0.84		− 0.04	− 0.02	− 0.01	− 0.46
CI upper		0.06	0.08	0.06	5.19		0.03	0.05	0.05	3.68		0.02	0.04	0.05	2.94