Influence of High-Impact Physical Activity on Pelvic Floor and Lumbar Muscle Mechanical Properties in Asymptomatic Nulliparous Women.

Introduction And Hypothesis: High-impact physical activity is a known risk factor for the development of pelvic floor disorders (PFDs) in women, affecting the pelvic floor muscles (PFMs). However, there is insufficient information to determine whether alterations in PFMs, or even in the lumbar muscles, can be detected before the onset of symptoms. The aim of the study was to identify whether high-impact physical activity influences the muscle mechanical properties (MMPs) of the lumbopelvic region in continent nulliparous women.

Influence of vaginal birth on lumbopelvic muscle mechanical properties on urinary incontinence.

Objective: To identify differences in the muscle mechanical properties of the pelvic floor (PF) and lumbar paravertebral (LP) muscles between young nulliparous and uni/multiparous women. Secondarily, specific behaviors, depending on the presence or absence or urinary incontinence (UI), were also researched.

Design: Case-control study.

Between-sexes differences in lumbopelvic muscle mechanical properties of non-climacteric adults: a cross-sectional design.

The lumbopelvic muscle mechanical properties (MMPs) are clinically relevant, but their dependence on sex remains unknown. Therefore, this study aimed to identify if lumbopelvic MMPs depend on the sex in a young adult population. Thirty-five healthy nulliparous women and 35 healthy men were analyzed (age range: 18-50).