Applied Evidence

Basic Technology to Support Stimulation Access, Activity, and Correct Posture in Individuals With Intellectual and Multiple Disabilities: Development and Usability Study.

JMIR rehabilitation and assistive technologies · 2026 · Pilot · PT · OT

Giulio E Lancioni, Gloria Alberti, Valeria Chiariello and 5 others

PMID 42562384

A smartphone-based system helped 9 adults with severe intellectual disability and blindness activate their own music and complete physical exercises independently, and improved posture in 5 of them.

The technology is cheap and simple, but the study is too small to confirm lasting effects.

Key findings

1During program sessions, all participants activated 94.7% to 99.4% of music pieces independently and completed 98.7% to 99.7% of physical activity responses, compared with baseline levels of 0% for most participants (up to 24.5% for shelf-touching responses).

2Participants in program 2 increased their time in correct posture from a baseline of about 18.8% to 36.5% of session time to 71.1% to 89.6% during program sessions.

3During program sessions, the percentage of intervals showing happiness behaviors ranged from 7.3% to 64.3% (program 1) and 16.8% to 37% (program 2), compared with below 10% during control sessions (except Graham at 10.2%). The effect was strong for Jackson, Margot, Matias, Alina, and Graham; moderate for Colton and Hazel; and absent for Eloise.

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What it does not show

Only 9 participants across two small groups; the authors note that single-case replication studies and group-design studies are needed to establish external validity. No maintenance or follow-up data: it is unknown whether the gains in independent activation, physical activity, or posture persist after the program ends. No generalization data: the programs were tested only in the participants' daily rehabilitation and care centers, not in homes, schools, or community settings. No social validation: staff, family members, and service providers were not formally asked about the acceptability, relevance, or usability of the programs. Posture was recorded with a smartphone light sensor, which the authors acknowledge is not a conventional or validated instrument for postural assessment. The programs were developed by the authors, who have long experience in this area and are willing to assist contexts in adopting them, which may influence how the results are framed. The mild physical activity (placing 6 to 10 objects or touching a shelf) is brief and low-intensity; the authors note that evaluating its beneficial effects is difficult because no specific assessment criteria or tools exist for this level of activity.

Declared interests

The authors declare no conflicts of interest. However, the programs were developed by the authors themselves, who describe having long experience in developing technology-aided solutions for this population, and they state they are willing to provide assistance to any context interested in adopting the system. No external funding source is named.

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