Quantitative muscle ultrasound and quadriceps strength in patients with post-polio syndrome.

Introduction: We investigated whether muscle ultrasound can distinguish muscles affected by post-polio syndrome (PPS) from healthy muscles and whether severity of ultrasound abnormalities is associated with muscle strength.

Methods: Echo intensity, muscle thickness, and isometric strength of the quadriceps muscles were measured in 48 patients with PPS and 12 healthy controls.

Results: Patients with PPS had significantly higher echo intensity and lower muscle thickness than healthy controls.

Circumstances and consequences of falls in polio survivors.

Objectives: Many polio survivors have symptoms that are known risk factors for falls in elderly people. This study aims to determine the: (i) frequency; (ii) consequences; (iii) circumstances; and (iv) factors associated with falls in polio survivors.

Methods: A survey was conducted among 376 polio survivors.