Pregnancy Mobility Index (PMI) was developed by
Van de Pol et al to assess the ability of doing normal
household activities. It is a validated self-report questionnaire,
consisting of three scales and it is used on pregnant
women to evaluate mobility and quality of life in relation
to LBP and/or PGP28. Disability because of LBP and/ or
PGP is often measured using the Quebec back pain disability
scale8.