Tónusukat

Tónusukat is a wearable biofeedback device designed to monitor muscle tonus in the lower limbs and aid rehabilitation and training. The system uses a sock-like garment embedded with flexible sensors, actuators, and a compact controller. It records signals from surface electromyography (EMG), pressure distribution, and movement via inertial sensors, and it translates these inputs into real-time feedback delivered as gentle vibrations or tactile cues on the sock. A connected app displays a tonus index, trends over time, and suggested exercises.

Design and function: The sensor array is distributed around the foot and calf, allowing localized readings. The actuators provide adjustable feedback to guide users to relax or contract specific muscle groups, with adjustable intensity and timing. The device is powered by a rechargeable battery and is designed to be water-resistant and washable.

Applications: In clinical settings, Tónusukat is proposed for neurorehabilitation after stroke, spinal cord injury, and for cerebral palsy management, as well as for athletic training to prevent overuse and support proprioceptive training. It can be used at home under remote supervision, complementing manual therapy.

Development and status: The concept emerged in the early 2020s as part of interdisciplinary research into wearable rehabilitation devices. Prototypes have undergone small-scale feasibility studies; large randomized trials and regulatory approvals are still pending in many regions.

Criticism and limitations: Reported benefits vary by individual, and evidence remains inconclusive about long-term efficacy. Users raise considerations about data privacy, comfort, durability, and washability.

See also: wearable technology, biofeedback, neurorehabilitation, EMG.