Accelerometer based independent and combined associations of physical activity and sedentary time on physical fitness in preschool children: a cross-sectional study

Table 1 Descriptive characteristics of the preschool children (N = 375).

Characteristics	All (n = 375)	Boys (n = 211)	Girls (n = 164)	P for sex
Age (months)	57.94 ± 5.44	58.35 ± 5.50	57.42 ± 5.32	0.121
Weight (Kg)	19.95 ± 3.29	20.64 ± 3.52	19.06 ± 2.73	< 0.001
Height (cm)	110.95 ± 4.96	111.63 ± 4.88	110.07 ± 4.92	0.005
Body mass index (Kg/m²)	16.14 ± 1.87	16.48 ± 1.95	15.69 ± 1.66	< 0.001
VPA (min/day)	30.50 ± 9.86	31.92 ± 10.54	28.67 ± 8.61	0.004
MVPA (min/day)	69.60 ± 17.40	72.46 ± 18.34	65.94 ± 15.41	< 0.001
TPA (min/day)	163.05 ± 33.51	169.11 ± 34.12	155.24 ± 31.10	< 0.001
ST (min/day)	565.01 ± 76.46	559.66 ± 79.35	571.90 ± 72.22	0.197
20 m shuttle run (laps)	12.64 ± 4.72	12.43 ± 4.56	12.92 ± 4.92	0.318
Handgrip (kg)	6.55 ± 2.34	6.95 ± 2.33	6.04 ± 2.26	< 0.001
Standing long jump (cm)	84.16 ± 16.35	85.62 ± 16.51	82.27 ± 16.01	0.035
2 × 10 m shuttle run (s)	7.215 ± 0.81	7.17 ± 0.86	7.27 ± 0.75	0.094
Accelerometer wear time (min/day)	729.43 ± 87.10	734.00 ± 83.55	723.54 ± 91.39	0.406
Physical fitness composite Z-score	0.00 ± 0.76	0.00 ± 0.78	0.00 ± 0.74	0.747
High physical fitness (n, %)
Yes	92 (24.53%)	51 (24.17%)	41 (25.00%)
No	283 (75.47%)	160 (75.83%)	123 (75.00%)

The data are expressed as means ± SDs. Abbreviations: VPA: vigorous physical activity; MVPA: moderate-to-vigorous physical activity; TPA: total physical activity; ST: sedentary time.