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Table 3 Proportion of alteration in the ratio between fetal movements and accelerations (FM/A) and the presence of decelerations recorded by cardiotocography (CTG) prior to and following moderate physical exercise in water, according to gestational age.

From: Fetal cardiotocography before and after water aerobics during pregnancy

Gestational age (weeks) % altered FM/A n p 1
  CTG before CTG after   
24 - 27 34.4 32.8 61 > 0.999
28 - 31 18.3 16.7 60 > 0.999
32 - 35 18.8 7.8 64 0.065
36 - 40 17.2 6.9 58 0.109
  % with deceleration   
24 - 27 4.9 6.6 61 > 0.999
28 - 31 1.7 3.3 60 > 0.999
32 - 35 - - 64 --
36 - 40 5.2 5.2 58 > 0.999
  1. 1 McNemar's test, binomial distribution