. 2022 Nov 24;13:1045178. doi: 10.3389/fphys.2022.1045178

TABLE 4.

Average values of oxygen uptake, tethered swimming, and kinematic indices of 200-m front crawl calculated for biological age.

BA (years)/number of participants (n)	51–60	1–60	F _ave	I _ave	SR	SL	SI	V _total200
	${\dot{V} O}_{2}$	${\dot{V} O}_{2}$	(N)	(N·s⁻¹)	(c∙min⁻¹)	(m)	(m²∙min⁻¹)	(m·s⁻¹)
	(l∙min⁻¹)	(l∙min⁻¹)	(N)	(N·s⁻¹)	(c∙min⁻¹)	(m)	(m²∙min⁻¹)	(m·s⁻¹)
11 (n = 1)	2.03	1.33	61.9	89.41	38.88	2.12	2.89	1.43
12 (n = 5)	3.10	1.95	47.31	74.05	45.81	1.72	2.21	1.36
13 (n = 15)	3.42	2.39	65.18	88.31	42.38	1.87	2.45	1.38
14 (n = 5)	3.47	2.38	70.82	98.14	38.62	1.96	2.34	1.31
15 (n = 9)	4.54	2.77	88.6	117.78	41.70	1.99	2.69	1.45
16 (n = 7)	4.41	3.00	82.73	112.44	40.96	1.93	2.49	1.40
17 (n = 4)	4.75	2.91	96.65	123.83	40.09	2.13	2.94	1.48
18 (n = 2)	5.56	3.13	100.95	137.69	40.82	2.08	2.90	1.51