Table 3.

Posture parameter development in the three posture positions and test groups over time.

			TR20				TR18				CON
		n	Mean	SD	C.I. (95%)	n	Mean	SD	C.I. (95%)	n	Mean	SD	C.I. (95%)
Habitual	14 years	26	1.42	0.06	1.39–1.44	31	1.42	0.05	1.40–1.44	23	1.41	0.06	1.36–1.43
	15 years	26	1.40	0.07	1.38–1.44	31	1.40	0.06	1.38–1.42	23	1.40	0.06	1.36–1.42
	16 years	26	1.30	0.08	1.27–1.34	31	1.33	0.07	1.31–1.36	22	1.40	0.07	1.36–1.43
	17 years	25	1.28	0.05	1.26–1.30	30	1.28	0.05	1.26–1.30	19	1.39	0.06	1.35–1.41
	18 years	24	1.28	0.05	1.26–1.30	28	1.27	0.09	1.24–1.31	16	1.37	0.05	1.34–1.40
	19 years	24	1.27	0.06	1.25–1.30	28	1.36	0.08	1.33–1.39	16	1.39	0.07	1.35–1.42
	20 years	24	1.27	0.05	1.25–1.30	28	1.37	0.08	1.34–1.40	15	1.40	0.06	1.37–1.43
Active, eyes open	14 years	26	1.35	0.06	1.33–1.38	31	1.37	0.05	1.35–1.39	23	1.32	0.05	1.30–1.36
	15 years	26	1.34	0.07	1.31–1.37	31	1.34	0.08	1.31–1.38	23	1.32	0.07	1.28–1.37
	16 years	26	1.20	0.08	1.16–1.23	31	1.23	0.06	1.20–1.25	22	1.34	0.05	1.33–1.38
	17 years	25	1.20	0.06	1.17–1.22	30	1.21	0.08	1.18–1.24	19	1.34	0.05	1.31–1.37
	18 years	24	1.18	0.09	1.14–1.21	28	1.19	0.10	1.15–1.23	16	1.34	0.05	1.31–1.37
	19 years	24	1.18	0.09	1.15–1.22	28	1.25	0.07	1.22–1.27	16	1.33	0.05	1.30–1.36
	20 years	24	1.19	0.07	1.16–1.22	28	1.24	0.11	1.20–1.28	15	1.33	0.05	1.30–1.36
Active, eyes closed	14 years	26	1.39	0.07	1.36–1.42	31	1.40	0.05	1.38–1.42	23	1.40	0.07	1.36–1.43
	15 years	26	1.36	0.06	1.33–1.38	31	1.38	0.07	1.35–1.41	23	1.41	0.06	1.38–1.44
	16 years	26	1.22	0.09	1.18–1.25	31	1.26	0.07	1.23–1.29	22	1.40	0.06	1.37–1.43
	17 years	25	1.23	0.06	1.20–1.26	30	1.26	0.06	1.23–1.28	19	1.39	0.04	1.37–1.41
	18 years	24	1.22	0.07	1.19–1.25	28	1.24	0.07	1.22–1.27	16	1.37	0.06	1.34–1.40
	19 years	24	1.25	0.08	1.21–1.28	28	1.33	0.07	1.30–1.35	16	1.37	0.05	1.34–1.40
	20 years	24	1.24	0.06	1.22–1.27	28	1.33	0.07	1.31–1.36	15	1.39	0.05	1.36–1.41

SD, standard deviation; C.I., 95% confidence interval.