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Table 3 Characteristics and Physical Activity Measures of Adolescents with Lower Limb Fractures during Cast Immobilization vs Healthy Controls.

From: Decrease of physical activity level in adolescents with limb fractures: an accelerometry-based activity monitor study

  Injured adolescents
(n = 34)
Healthy controls
(n = 34)
p value
Age (yr) 13.6 ± 1.6 13.3 ± 1.6 0.2312
Height (cm) 161.9 ± 11.1 162 ± 12.9 0.9501
Weight (kg) 52.1 ± 11.8 51.8 ± 11.8 0.8128
BMI (kg/m2) 19.7 ± 2.5 19.5 ± 2.5 0.2614
Number of valid monitored days (days) 9.1 +/- 1.8 8.2 +/-2 0.0276*
Daily duration of physical activity monitoring (min) 746.7 ± 22.9 749.3 ± 33.3 0.8241
Total activity
(counts/min.day)
200.9 ± 92.3 534.5 ± 207.3 <0.0001*
Time spent in sedentary activity (min/day)
(% of total daily wearing time)
664.4 +/- 40.9
89
564.3 +/- 64.4
75.3
<0.0001*
Time spent in light activity (min/day)
(% of total daily wearing time)
68.4 +/- 26.4
9.2
125.7 +/- 40.1
16.8
<0.0001*
Time spent in moderate (min/day)
(% of total daily wearing time)
8.9 +/- 7.2
1.2
27.5 +/- 11.4
3.7
<0.0001*
Time spent in vigorous activity (min/day)
(% of total daily wearing time)
5 +/- 6.8
0.6
31.8 +/- 18
4.2
<0.0001*
  1. The results are expressed as mean ± SD.
  2. *: statistically significant difference (please always place at foot of table)