Levator hiatus area at rest (LHrest) and during pelvic floor muscle (PFM) contraction (LHcontr) at mean gestational weeks (GW) 21 and 37 among exercisers and non-exercisers at GW 21 and 37
| Exercisers at GW 21 n=54 | Non-exercisers at GW 21 n=157 | Difference between exercisers and non-exercisers | p Value for differences | |||
|---|---|---|---|---|---|---|
| LHrest (cm2) GW 21 | 11.9 (2.3) | 11.6 (2.2) | −0.3 (−1.0 to 0.4) | 0.37 | ||
| LHcontr (cm2) GW 21 | 9.0 (1.7) | 9.2 (1.8) | 0.3 (−0.3 to 0.8) | 0.37 | ||
| Exercisers at GW 37 N=19 | Non-exercisers at GW 37 N=189 | |||||
| LHrest (cm2) GW 37 | 15.3 (3.3) | 13.6 (2.7) | −1.6 (−3.0 to −0.3) | 0.02 | ||
| LHcontr (cm2) GW 37 | 11.4 (2.2) | 10.4 (2.0) | −1.1 (−2.0 to −0.1) | 0.04 | ||
Means with SD and mean differences with 95% CI.