Table 3

Characteristics and physical activity measures of teenagers with an 18-month past history of lower limb fractures vs healthy controls
Injured teenagers Healthy controls p value*
(n = 20) (n = 20)
Age (y) 14.3 ± 1.7 14 ± 1.8 0.0764
Height (cm) 167.6 ± 12.7 162.8 ± 13.5 0.1239
Weight (kg) 60.6 ± 14.9 55.3 ± 13.4 0.0156*
BMI (kg.m-2) 21.2 ± 2.8 20.6 ± 3.1 0.0012*
Number of valid monitored days 7.2 +/- 2.8 8.5 +/- 2 0.1541
Daily duration of the physical activity monitoring (min) 736.7 ± 25.1 744.4 ± 27.8 0.3812
Total activity (counts.min-1.d-1) 531.1 ± 256.5 541 ± 216.5 0.4925
Sedentary activity (min/day) (%) 577.9 +/- 44.5 563.5 +/- 62.1 0.9058
78.5 75.7
Light activity (min/day) (%) 107.8 +/- 27.3 119 +/- 34.7 0.4776
14.6 16
Moderate (min/day) (%) 20.1 +/- 7.5 28.9 +/- 10.8 0.0086*
2.7 3.9
Vigorous activity (min/day) (%) 30.9 +/- 24.7 33.1 +/- 18.9 0.4631
4.2 4.5
Time spent in moderate to vigorous activity (min.day-1) 51 ± 28.9 62 ± 28.2 0.1024

The results are expressed as mean ± SD. *: statistically significant difference [please always place at foot of table].

Ceroni et al.

Ceroni et al. BMC Musculoskeletal Disorders 2012 13:131   doi:10.1186/1471-2474-13-131

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