Table 2

Characteristics and physical activity measures of teenagers with a 6-month past history of lower limb fractures vs healthy controls
Injured teenagers Healthy controls p value*
(n = 32) (n = 32)
Age (y) 13.6 ± 1.5 13.5 ± 1.6 0.4547
Height (cm) 161.0 ± 10.9 162.6 ± 12.6 0.3883
Weight (kg) 52.4 ± 9.3 53.5 ± 10.8 0.3698
BMI (kg.m-2) 20.1 ± 1.9 20.1 ± 2.6 0.9556
Number of valid monitored days 7.9 +/- 2.3 7.7 +/- 2.1 0.7905
Daily duration of the physical activity monitoring (min) 745.4 ± 32.4 746.4 ± 35.8 0.9989
Total activity (counts.min-1.d-1) 556 ± 266.9 569.2 ± 219.7 0.7366
Sedentary activity (min/day) (%) 563.4 +/- 57.7 554.4 +/- 69.2 0.7548
75.6 74.3
Light activity (min/day) (%) 122.8 +/- 38.1 127.1 +/- 42.9 0.6654
16.5 17
Moderate (min/day) (%) 23.2 +/- 10 30.2 +/- 13.8 0.0174*
3.1 4.1
Vigorous activity (min/day) (%) 35.9 +/- 19.5 34.7 +/- 18.5 0.7731
4.8 4.6
Time spent in moderate to vigorous activity (min.day-1) 59.1 ± 37.2 64.9 ± 30.9 0.3366

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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