Perceptive rehabilitation and trunk posture alignment in patients with Parkinson Disease: a single blind randomized controlled trial.

BACKGROUND: Recent studies aimed to evaluate the potential effects of perceptive rehabilitation in Parkinson Disease reporting promising preliminary results for postural balance and pain symptoms. To date, no randomized controlled trial was earned out to compare the effects of perceptive rehabilitation and conventional treatment in patients with Parkinson Disease. AIM: To evaluate whether a perceptive rehabilitation treatment could be more effective than a conventional physical therapy program in improving postural control and gait pattern in patients with Parkinson Disease. DESIGN: Single blind, randomized controlled trial. SETTING. Department of Physical and Rehabilitation Medicine of a University Hospital. POPULATION: Twenty outpatients affected by idiopathic Parkinson Disease at Hoehn and Yahr stage <= 3. METHODS: Recruited patients were divided into two groups the first one underwent individual treatment with Surfaces for Perceptive Rehabilitation (Su-Per), consisting of rigid wood surfaces supporting deformable latex cones of various dimensions, and the second one received conventional group physical therapy treatment. Each patient underwent a training program consisting of ten, 45-minute sessions, three days a week for 4 consecutive weeks. Each subject was evaluated before treatment, immediately after treatment and at one month of follow-up, by an optoelectronic stereophotogrammetric system for gait and posture analysis, and by a computerized platform for stabilometric assessment. RESULTS: Kyphosis angle decreased after ten sessions of perceptive rehabilitation, thus showing a substantial difference with respect to the control group. No significant differences were found as for gait parameters (cadence, gait speed and stride length) within Su-Per group and between groups Parameters of static and dynamic evaluation on stabilometric platform failed to demonstrate any statistically relevant difference both within-groups and between-groups. CONCLUSIONS. Perceptive training may help patients affected by Parkinson Disease into restoring a correct midline perception and, in turn, to improve postural control.