Association of self-reported physical fitness with pain during pregnancy: The GESTAFIT Project.

Aims: To explore the association of self-reported physical fitness with bodily, lumbar and sciatic pain, and pain disability during pregnancy.

Methods: The present study sample comprised 159 pregnant women (32.9 ± 4.7 years old). Self-reported physical fitness was assessed with the International Fitness Scale (IFIS), where higher scores indicate greater physical fitness. Bodily pain was assessed with the 36-Item Short Form Health Survey (SF-36), where higher scores indicate lower pain. Lumbar and sciatic pain were measured with a visual analogue scale (VAS). The Oswestry Disability Index (ODI) questionnaire was employed to assess the disability resulting from pain. Measures were assessed at 16th and 34th gestational weeks (g. w.).

Results: Pregnant women showed low-moderate pain during pregnancy course. Most of them showed medium self-reported overall physical fitness. At 16th g. w., greater self-reported overall physical fitness and cardiorespiratory fitness were associated with less bodily and lumbar pain, and pain disability (all, P < 0.05). Greater muscular strength was associated with less bodily pain and pain disability (both, P < 0.05). Greater speed-agility was associated with less bodily pain (P < 0.01) and less pain disability (P < 0.05). Self-reported flexibility was not associated with any outcome (P > 0.05). At 34th g. w., greater overall physical fitness and its components were associated with less bodily and sciatic pain (all, P < 0.05).

Conclusion: Greater self-reported overall physical fitness and its components are associated with less bodily, lumbar and sciatic pain, and reduced pain disability during pregnancy. Future studies are needed to explore whether increasing physical fitness before and during pregnancy could decrease pain in this relevant stage.