TABLE 2.
Comparison of intramuscular ECM collagen content between virgin, MP, LP, 4 wks PP and 12 wks PP groups
| Group | Coccygeus | Iliocaudalis | Pubocaudalis | Tibialis anterior |
|---|---|---|---|---|
| Virgin | 3.11 ± 0.47 | 2.87 ± 0.27 | 3.46 ± 0.52 | 6.87 ± 0.37 |
| MP | 5.87 ± 0.66 | 3.18 ± 0.11 | 4.90 ± 0.53 | — |
| LP | 7.45 ± 0.65 | 4.34 ± 0.12 | 6.05 ± 0.62 | 7.02 ± 0.54 |
| 4 wks PP | 6.67 ± 0.68 | 2.90 ± 0.22 | 4.14 ± 0.32 | — |
| 12 wks PP | 6.37 ± 0.55 | 2.86 ± 0.34 | 4.96 ± 0.32 | 5.33 ± 0.41 |
| Virgin vs MP, P valuea | .0005 | > .9999 | .2667 | — |
| Virgin vs LP, P valuea | < .0001 | .0198 | .0014 | .9729 |
| MP vs LP, P valuea | .1704 | .0846 | .5891 | — |
| LP vs 4 wks PP, P valuea | .9367 | .0246 | .0449 | — |
| LP vs 12 wks PP, P valuea | .6706 | .0196 | .6559 | .0510 |
| Virgin vs 4 wks PP, P valuea | < .0001 | > .9999 | .9724 | — |
| Virgin vs 12 wks PP, P valuea | < .0001 | > .9999 | .2219 | .0736 |
Data presented as mean +/− SEM of micrograms of collagen per milligram of tissue.
ECM, extracellular matrix; LP, late-pregnant; MP, mid-pregnant; PP, postpartum.
a
P values derived from two-way analysis of variance, followed by Tukey’s pairwise comparisons with significance level set to 5%.
Alperin. Pregnancy adaptations in rat pelvic muscles. Am J Obstet Gynecol 2015.