Wearable haptic anklets for gait and freezing improvement in Parkinson's disease: a proof-of-concept study.

BACKGROUND AND OBJECTIVE: In a proof-of-concept study, we aimed to verify whether the wearable haptic anklets, a device that delivers personalized suprathreshold alternating exteroceptive stimulation at the anklets on demand, may improve the quality of walking, including the freezing of gate (FOG), in idiopathic Parkinson's disease (PD) patients. The clinical relevance of the presented device as a walking pacemaker to compensate the disturbed locomotion through the generation of a more physiological internal walking rhythm should be verified in a dedicated clinical trial. METHODS: We tested 15 patients diagnosed as idiopathic PD, during their regular treatment regimen. Patients were evaluated during walking with the device switched on and off, personalized at their most comfortable cadence. Stride velocity, variance, and length, as well as FOG episode duration during walking or turning of 180°, were quantified by an optical high-performance motion capture VICON system. RESULTS: The alternating, rhythmic, sensory stimulation significantly improved either walking velocity or reduced inter-stride variance. Effects were more variable on stride length. The significant reduction of FOG episodes' duration correlated with clinical severity of scales rating gate and balance. No safety problems occurred. CONCLUSIONS: The WEARHAP-PD device, whose Technology Readiness Level (TRL) is 6, significantly improved some walking abilities (walking velocity and stride variance) and reduced the duration of FOG episodes in idiopathic PD patients. Unlike the traditional auditory and visual explicit cues that require the user's allocation of attention for correct functioning, the interaction of the patients with the surrounding environment was preserved, due to the likely implicit processing of haptic stimuli.

Psycho-social impact of social distancing and isolation due to the COVID-19 containment measures on patients with physical disabilities.

BACKGROUND: While the COVID-19 pandemic was spreading worldwide, the Italian government stated lockdown, with a drastic reorganization of healthcare systems. The psychological and social effects of the pandemic and the restrictions of freedom could have had a detrimental impact on people with physical disabilities, for whom well-being depends strongly on their social environment. AIM: Our main aim was to describe the overall impact of the pandemic on mental health, social condition and illness perception among patients with disabilities, to provide early interventions for this particularly vulnerable population. For this purpose, we performed a specific screening protocol to detect the prevalence of any psychological distress. DESIGN: Cross-sectional observational study. SETTING: Telephonic interview administered to patients and their caregivers attending the Unit of Neurorehabilitation at the University Hospital of Pisa. POPULATION: 134 patients with physical disability related to neurological disorders, who had their outpatient appointment cancelled, because of the government dispositions, were enrolled. METHODS: A specific questionnaire (COVID19-q) was designed to test patients' psycho-social state, including a section addressed to the caregiver. Moreover, a standardized psychological evaluation, using the Clinical Outcomes in Routine Evaluation-Outcome Measure (CORE-OM), was also performed. RESULTS: Results show a different impact in our study population compared to the general population on psychological aspect. Patients did not manifest any clinically relevant distress, as assessed with CORE-OM. However, patients with higher disability degree reported a statistically lower outcome in the social function, in the well-being domains and an increase in risk behavior. Results from COVID19-q show that most of our patients reported none or mild change in their psycho-social habits and perception of illness during lockdown. However, reduction of family cohesion and lack of healthcare support are two important aspects that people with disability had to face with during the pandemic emergency. CONCLUSIONS: People with physical disabilities surprisingly shown milder effects of the pandemic on their psychological state and good coping skills in facing social isolation, manifesting resilience resources. However, the is a need to give concrete support to healthcare and social care, especially in the management of severe disability. CLINICAL REHABILITATION IMPACT: This unexpected and reassuring result may reveal a worrying scenario regarding-the social participation and quality of life of people with disabilities: were they already in lockdown?