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. 2019 Mar 26;10:315. doi: 10.3389/fphys.2019.00315

FIGURE 1.

FIGURE 1

Postpartum vs. Nulligravid PPTs. Pressure Pain Threshold before (Pre) and after (Post) Exercise in Nulligravid and Postpartum Women at the Nailbed (A,B) and Abdomen (C,D). Neither postpartum nor nulligravid women demonstrated a change in PPT at the nailbed following fatiguing trunk flexor exercise at the initial (A) or follow-up (B) time points. Postpartum women had lower PPTs at the nailbed than nulligravid women at 8–10 weeks postpartum (A) but had similar PPTs as nulligravid women 24–26 weeks after childbirth (B) due to a decline in nulligravid PPTs from initial to follow up. Both postpartum and nulligravid women demonstrated EIH at the superior rectus abdominis site following fatiguing trunk flexor exercise at both the initial (C) and follow up (D) time points. Postpartum women had lower PPTs than nulligravid women at the abdomen at 8–10 weeks postpartum (C) and 24–26 weeks postpartum (D). ∗ indicates p < 0.05 (time effect).