Tibialis posterior muscle pain effects on hip, knee and ankle gait mechanics.

Tibialis posterior muscle pain effects on hip, knee and ankle gait mechanics. Hum Mov Sci. 2019 Apr 10;66:98-108 Authors: Simonsen MB, Yurtsever A, Næsborg-Andersen K, Leutscher PDC, Hørslev-Petersen K, Andersen MS, Hirata RP Abstract BACKGROUND: Tibialis posterior (TP) dysfunction is a common painful complication in patients with rheumatoid arthritis (RA), which can lead to the collapse of the medial longitudinal arch. Different theories have been developed to explain the causality of tibialis posterior dysfunction. In all these theories, pain is a central factor, and yet, it is uncertain to what extent pain causes the observed biomechanical alterations in the patients. The aim of this study was to investigate the effect of experimental tibialis posterior muscle pain on gait mechanics in healthy subjects. METHODS: Twelve healthy subjects were recruited for this randomized crossover study. Experimental pain was induced by ultrasound-guided injection of 1 mL hypertonic saline into the upper part of the right tibialis posterior muscle with the use of isotonic saline as non-pain-inducing control. Subsequently, kinematic data during three self-paced over ground walking for each condition were collected. Ground reaction forces and external moments were measured from force plates installed in the floor. Painful areas were evaluated using body charts and pain intensity scoring via a verbal numerical rating scale. FINDING...
Source: Human Movement Science - Category: Neurology Authors: Tags: Hum Mov Sci Source Type: research