FILE 01 / CLINICAL AND ENGINEERING CONTEXT
Foot drop frames the question. It does not validate the proposed answer.
Norysr is exploring whether local motion and muscle sensing could time gait assistance for pediatric cerebral palsy. The clinical and engineering evidence behind that premise is under renewed source-by-source review.
This page describes the project question and boundaries. It does not provide medical advice or report a tested device.
01 / THE QUESTION
Can a wearable recognize the relevant part of an individual stride?
The project focuses on swing-phase foot drop in pediatric cerebral palsy. It proposes combining lower-leg motion sensing with surface muscle signals, then evaluating whether that combination improves a transparent motion-only baseline.
That is an engineering question, not a conclusion. Norysr has no project dataset, prototype result, clinical outcome or validated trigger method.
02 / CURRENT CARE
The project does not replace established clinical assessment or care.
Orthoses, rehabilitation and functional electrical stimulation are clinical subjects with patient-specific indications, limits and risks. Norysr is not qualified to compare or recommend them while its source review is incomplete.
Any future stimulation settings, electrode placement, fitting workflow and participant criteria must be defined with licensed clinicians and appropriate safety review.
03 / THE ENGINEERING GAP
A useful prototype must expose its timing and failure behavior.
Timing
Measure the complete path from synchronized sensor input to stimulation command, not only model inference.
Calibration
Compare a population model, a short per-user calibration and a transparent rule baseline.
Failure behavior
Test dropped data, sensor drift, low confidence, reset, processor fault and default-off behavior.
Reporting
Report distributions, false triggers, missed triggers and participant-level variation rather than one best-case number.
04 / NORYSR SCOPE
Keep the proposed contribution narrow enough to falsify.
- The current concept uses a distal-shank inertial sensor and two surface-EMG channels.
- The control decision is intended to remain on a local embedded device.
- The initial scope is pediatric cerebral palsy with swing-phase foot drop.
- No stimulation envelope, participant protocol or regulatory path has been approved.