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Table 1 Characteristics and Physical Activity Measures of Adolescents with Lower Limb Fractures during Cast Immobilization vs Healthy Controls

From: Recovery of physical activity levels in adolescents after lower limb fractures: a longitudinal, accelerometry-based activity monitor study

  Injured adolescents Healthy controls p value
(n = 34) (n = 34)
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) 664.4 +/- 40.9 564.3 +/- 64.4 <0.0001*
(% of total daily wearing time) 89 75.3  
Time spent in light activity (min/day) 68.4 +/- 26.4 125.7 +/- 40.1 <0.0001*
(% of total daily wearing time) 9.2 16.8  
Time spent in moderate (min/day) 8.9 +/- 7.2 27.5 +/- 11.4 <0.0001*
(% of total daily wearing time) 1.2 3.7  
Time spent in vigorous activity (min/day) 5 +/- 6.8 31.8 +/- 18 <0.0001*
(% of total daily wearing time) 0.6 4.2  
Time spent in moderate to vigorous activity (min/day) 13.9 +/- 13.4 59.4 +/- 28.4 <0.0001*
  1. The results are expressed as mean ± SD. *: statistically significant difference (please always place at foot of table).