Volume and accumulation patterns of physical activity and sedentary time: longitudinal changes and tracking from early to late childhood

Table 2 Tracking coefficients for total volume and accumulation patterns of physical activity and sedentary time

	Standardised tracking (β) coefficients¹
	Boys	Girls	Total sample
Total SED (min/day)	0.49	0.64	0.56
Total LPA (min/day)	0.52	0.58	0.54
Total MPA (min/day)	0.35	0.56	0.52
Total VPA (min/day)	0.54	0.60	0.58
SED breaks (number/day)	0.32	0.28	0.32
≥ 1-min SED bouts (min/day)	0.46	0.62	0.53
≥ 5-min SED bouts (min/day)	0.39	0.47	0.41
≥ 10-min SED bouts (min/day)	0.30	0.34	0.31
≥ 15-min SED bouts (min/day)	0.24	0.23	0.24
≥ 20-min SED bouts (min/day)	0.14	0.16	0.16
≥ 1-min LPA bouts (min/day)	0.60	0.42	0.53
≥ 5-min LPA bouts (min/day)	0.14	0.03	0.05
≥ 1-min MPA bouts (min/day)	0.22	0.33	0.35
≥ 1-min VPA bouts (min/day)	0.41	0.26	0.35
≥ 5-min VPA bouts (min/day)	0.40	0.28	0.43

Notes: ¹Tracking coefficients defined as weak (< 0.30), moderate (0.30–0.60), and strong (> 0.60); boldface indicates p < 0.05 for to non-standardised coefficients
Abbreviations: LPA light-intensity physical activity; MPA moderate-intensity physical activity; SED sedentary time; VPA vigorous intensity physical activity

ISSN: 1479-5868