Eletrocap

Validation Plan

Validation Report

Evidence-driven testing for a clinically defensible prototype.

The validation plan checks whether the wearable tracker is accurate, repeatable, comfortable, and robust enough for physiotherapy workflows. It combines controlled gait trials, engineering stress tests, and usability feedback.

>95% target gait-event detection accuracy
<5 ms target synchronization skew
<2 min target clinical setup time
Test Area 01

Gait Event Detection

Validate heel-strike and toe-off detection across repeated walking trials and speed conditions.

  • Controlled treadmill or walkway trials
  • Repeated sessions per participant
  • Accuracy, false positives, false negatives, and timing error
Test Area 02

Synchronization & Latency

Confirm that multiple nodes remain aligned while the dashboard receives results fast enough for real-time use.

  • Inter-node skew measurements
  • Wireless interference and packet-dropout stress tests
  • End-to-end latency from acquisition to dashboard
Test Area 03

Repeatability

Check whether the same subject and protocol produce stable metrics across sessions and sensor placements.

  • Same-subject repeated trials
  • Sensor repositioning variability
  • Stride time, symmetry index, and range-of-motion consistency
Test Area 04

Clinical Usability

Evaluate whether the system fits naturally into a physiotherapy session without adding unnecessary friction.

  • Setup time and calibration success rate
  • Comfort scoring during walking tasks
  • Clinician interpretation of dashboard outputs
Test Area 05

Power & Hardware Stability

Measure whether the wearable nodes can operate reliably for complete sessions without thermal or battery issues.

  • Continuous endurance tests
  • Battery discharge profiling
  • Thermal monitoring under sustained acquisition
Test Area 06

Data Integrity & Privacy

Verify that session data remains complete, exportable, and stored with minimal identifying information.

  • Local-first storage checks
  • CSV/PDF export verification
  • Pseudonymized session logging
Protocol Structure

A repeatable path from trial setup to documented result.

Each validation session follows a consistent structure so measurements can be compared across subjects, days, and prototype revisions.

01Define environment, subject, sensors, and walking protocol.
02Collect synchronized IMU streams and reference observations.
03Compute gait events, temporal metrics, and quality indicators.
04Compare results against targets and document limitations.
Metric Target Purpose
Gait event accuracy >95%

Ensures detected steps are reliable enough for session summaries.

Temporal error <50 ms

Limits event timing uncertainty during phase and cadence estimation.

Sync skew <5 ms

Keeps multi-node signals aligned for segment-level comparison.

Packet loss <1%

Reduces missing samples and preserves session continuity.

End-to-end latency <100 ms

Supports real-time indicators in the clinician dashboard.

Phase 01 Lab Validation

Controlled trials, signal quality checks, and baseline algorithm accuracy.

Phase 02 Clinical Workflow Testing

Setup, comfort, calibration, dashboard interpretation, and export review.

Phase 03 Longitudinal Monitoring

Repeated sessions over time to evaluate progress tracking and repeatability.

Phase 04 External Benchmarking

Comparison against reference systems or annotated datasets when available.

Validation Principle

Every dashboard metric should be traceable to a test.

Validation is integrated into firmware, synchronization, signal processing, and interface design so the final prototype is measurable rather than merely demonstrable.

  • Engineering reliability: timing, packet integrity, power, and robustness.
  • Clinical reliability: event accuracy, repeatability, and interpretability.
  • Workflow reliability: setup time, comfort, exportability, and documentation quality.