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Table 1 Descriptive statistics of the participants by trimesters

From: Correlating mechanical work with energy consumption during gait throughout pregnancy

Measure Total Mean ± SD 1st trim Mean ± SD 2nd trim Mean ± SD 3rd trim Mean ± SD Sig. (p)
Participants (n) 35b 14 20 10  
Age 27.5 ± 6.1 28.1 ± 5.5 27.1 ± 6.1 26.6 ± 6.6 0.83
Height (cm) 160.8 ± 6.4 160.8 ± 5.9 160.2 ± 6.8 161.4 ± 7.2 0.89
Mass (kg) 70.4 ± 15.7 62.7 ± 10.5 71.3 ± 16.6 78.8 ± 14.7 0.08
BMI (kg/m2) 27.3 ± 5.9 24.3 ± 4.0 27.7 ± 6.2 29.9 ± 4.9 0.08
Mgain (kg) 6.1 ± 6.3 1.09 ± 3.1 5.27 ± 2.8 13.81 ± 7.9 0.00
PPM (kg)a 64.4 ± 14.5     
PPBMI (kg/m2) 25.1 ± 5.5     
Ethnicity 74.3 % black     
  17.1 % mixed ancestry    
  8.6 % white     
  1. M gain mass gain from pre-pregnancy (i.e. total mass gain), PPM pre-pregnancy mass; aSelf-reported; PPBMI pre-pregnancy body mass index; trim trimester; bSeveral participants were measured in multiple stages