KINETICTWIN / DIGITAL TWIN SIMULATION READY SYNTHETIC DATA

What if recovery could be observed between appointments?

KineticTwin AI transforms continuous movement data and clinical motion analysis into a dynamic biomechanical digital twin designed to help care teams understand how musculoskeletal recovery is progressing.

SIGNAL INGESTION Multi-Sensor
KINEMATICS Inverse Dynamics
EVALUATION Human-in-Loop
KINETICTWIN / SIGNAL 200 Hz Stream (IMU)
KINETICTWIN / LOAD Tibial Force: 740 N
KINETICTWIN / TWIN Gait Symmetry: 96%
[DRAG TO ROTATE MODEL • SYNTHETIC BIOMECHANICS]
THE RECOVERY DISPARITY

Recovery has a black box.

A patient spends a tiny fraction of their post-operative recovery inside a clinic. The overwhelming majority happens during unsupervised daily life.

WEEKLY TIMELINE DISTRIBUTION

168 Hours of Weekly Recovery Life

ILLUSTRATIVE TEMPORAL RATIO
Clinic Appointment: ~30–45 minutes intermittent check-in
Unobserved Ambulation: ~167.5 hours of walking, stairs, sitting, compensating

The Biomechanical Reality: Most functional adaptation occurs outside clinical walls. When postoperative patients compensate for discomfort or fatigue, the changes register in daily movement kinematics long before the next scheduled consultation.

LONGITUDINAL PATTERN

What the clinic doesn't see.

Select any day across the post-operative week to inspect how subtle daily ambulatory events compound into detectable mechanical signals.

MON
Clinic Exam
TUE
Home Rest
WED
Grocery Walk
THU
Stair Ascent
FRI
Compensation
SAT
Load Drop
SUN
Pattern Shift

Monday — Clinic Visit (30 mins)

Controlled clinical examination. Passive range of motion evaluated on examination table. Patient performs guided 10-meter walk under direct clinician observation. Everything appears within standard recovery expectations.

THE TRANSFORMATION

Every movement leaves a signal.

KineticTwin converts raw multi-modal telemetry from daily ambulation into fundamental physical dimensions of human musculoskeletal mechanics.

RAW SIGNAL

IMU

OUTPUT

3D Acceleration & Angular Velocity

RAW SIGNAL

FORCE

OUTPUT

Plantar Ground Reaction & Moments

RAW SIGNAL

VISION

OUTPUT

Spatial Skeletal Pose Topology

RAW SIGNAL

TIME

OUTPUT

Longitudinal Recovery Trajectory

KINETICTWIN / SIGNAL

One movement. Multiple signals.

Kinetic data does not rely on a single vulnerable sensor stream. The computational engine normalizes and synchronizes high-frequency IMU telemetry, optical video frames, and temporal ground reaction data into a unified biomechanical coordinate frame.

  • Temporal Alignment: Millisecond-level synchronization across disparate wireless wearable endpoints.
  • Multi-Rate Sampling (200 Hz): Captures dynamic impact transients without sensor drift distortion.
  • Illustrative Stream: Synthetic real-time telemetry demonstrating multi-planar frequency normalization.
LIVE SYNTHETIC SIGNAL STREAM 200 Hz SAMPLING
CH 01: TIBIAL ACCELERATION (G) CH 02: SAGITTAL GYRO (°/S)
OPTICAL COMPUTATION

Markerless pose to 3D skeletal geometry.

Standard smartphone video is translated into anatomical spatial topology through sequential neural keypoint detection without specialized laboratory optical markers.

STAGE 01

Video Frame

Uncalibrated 2D optical capture

STAGE 02

Pose Center

24-Point anatomical landmarking

STAGE 03

Joint Centers

Functional center of rotation

STAGE 04

3D Geometry

Depth-aware skeletal rigging

STAGE 05

Kinetic Twin

Dynamic movement model

COMPUTATIONAL BIOMECHANICS

Motion becomes mechanics.

Tracking position is merely kinematics. KineticTwin solves the inverse dynamics equations to derive the actual forces, contact moments, and joint loads acting inside the musculoskeletal system.

INVERSE DYNAMICS EQUATION OF MOTION
M(q)q̈ + C(q, q̇) + G(q) = τ + JTFext

Calculates internal joint torques (τ) and articular contact loads from segment mass properties, kinematic trajectories, and external ground reaction forces (Fext).

Musculoskeletal Degrees of Freedom

Tibiofemoral Flexion / Extension 0° - 135° DOF
Varus / Valgus Adduction Moment ±12° DOF
Internal / External Axial Rotation ±15° DOF
THE INTERACTIVE INSTRUMENT

Meet the digital twin.

Interact with the simulated musculoskeletal model. Drag to rotate across three dimensions, inspect gait trajectory paths, and toggle force vector layers.

CASE 0241 / SYNTHETIC POST-OP RECOVERY • DAY 42
LATITUDE: 0.00° | ORBIT: FREE ROTATION
KNEE FLEXION 118° (Target 120°)
GAIT SYMMETRY 94.2%
LAYERS:
SPEED:
STRUCTURAL MECHANICS

LOAD.

Movement is only half the story. The digital twin couples motion dynamics to structural contact surfaces, modeling stress distribution across joints and orthopedic implants.

FINITE ELEMENT SIMULATION CONCEPTUAL SIMULATION

Illustrates computational stress fields across tibial insert contact geometry. Does not represent patient-specific finite element analysis in this demonstration environment.

PLANTAR GROUND REACTION & PRESSURE NOMINAL GAIT
[CONTACT REGION CONTOURS • 3-POINT GROUND REACTION INTEGRATION]
THE RECOVERY ARC

Recovery doesn't happen at appointment time.

Moving from episodic clinic snapshots to continuous biomechanical continuity.

01

Clinic Visit

Pre-operative or initial baseline capture

02

Daily Life

Passive movement telemetry in home setting

03

Computational Twin

Inverse dynamics & load recalculation

04

Deviation Flag

Pattern divergence highlighted

05

Clinical Review

Objective biomechanics in consultation

THE CLINICAL INTERFACE

The Biomechanics Observatory.

ILLUSTRATIVE CLINICAL DECISION SUPPORT INTERFACE
PATIENT: Synthetic Case 0241 | PROCEDURE: Total Knee Arthroplasty | TIMELINE: Post-Op Day 42
PATTERN CHANGE DETECTED
MONITORED RANGE OF MOTION

118° Active Flexion

-4° vs. Expected Baseline

STANCE DURATION SYMMETRY

88% Bilateral Symmetry

↓ 6% past 72 hours

DAILY AMBULATORY LOAD

4,120 Steps / Day

Nominal volume

SYNTHETIC TWIN VISUALIZATION LIVE KINEMATIC RIG
[BIOMECHANICAL RIG MODEL ACTIVE]
Tibiofemoral Adduction Vector: 2.4° Varus Shift
ACTIVE PATTERN SIGNALS
REVIEW Day 42
Asymmetric Load Compensation

Recent simulated movement indicates a 14% shift toward contralateral loading during stair descent.

Warrants Clinical Review →
DEVIATION DETECTION

Find change before it becomes a conversation.

KineticTwin AI compares each patient’s observed ambulatory trajectory against established normative recovery baselines. When loading diverts from expected bounds, care teams receive timely notification.

Responsible Clinical Positioning: The platform surfaces patterns for professional review; it does not claim autonomous diagnosis or guarantee adverse event prevention.

LONGITUDINAL RECOVERY TRAJECTORY
- - EXPECTED — OBSERVED
ILLUSTRATIVE RECOVERY TRAJECTORY • SYNTHETIC CASE
ANATOMICAL NAVIGATION

Six Anatomical Zones. One Engine.

Click on any anatomical hotspot on the skeletal model to explore regional sensor modalities, inverse kinematics, and clinical observation workflows.

SELECTED ANATOMICAL ZONE

Knees & Patellofemoral Mechanics

Models multi-planar knee kinematics including flexion-extension arcs, varus/valgus alignment changes, and tibiofemoral ground load distribution during stance and swing phases.

PRIMARY SENSOR MODALITY
6-Axis IMU Array + Optical Pose Stream
LIVE COMPUTATIONAL METRICS
Flexion Arc: 0° - 128° Varus Deviation: 2.1° Tibial Moment: 42 Nm Status: Nominal
CLINICAL PARTNERS

Designed around the needs of clinical teams.

Built for enterprise orthopedic departments, surgical practices, and recovery networks seeking objective biomechanical continuity.

ENTERPRISE NETWORKS

Population Biomechanics

Monitor recovery trajectories across large patient cohorts. Surface statistical compensation patterns across multi-center orthopedic services.

  • • Cohort-wide recovery benchmarking
  • • Automated review prioritization
  • • Centralized digital twin registry
ORTHOPEDIC PRACTICES

Objective Follow-Up

Replace anecdotal patient recall with verified longitudinal motion data during scheduled post-operative consultations.

  • • Objective range-of-motion trends
  • • Gait asymmetry progression
  • • Streamlined clinical decision support
HEALTHCARE PAYERS

Care Quality Alignment

Support remote therapeutic monitoring workflows aligned with quality metrics and timely clinical interventions.

  • • Remote monitoring workflow compatibility
  • • Longitudinal recovery verification
  • • Evidence-based care pathways
TECHNICAL PIPELINE

The computation happens beneath the interface.

From edge device capture through secure pipelines to inverse dynamic cloud solvers.

END-TO-END COMPUTATIONAL PIPELINE PIPELINE OPERATIONAL
Edge Sensor 200 Hz Stream
TLS Pipeline Encrypted Ingest
GPU Solvers Matrix Kinematics
Inverse IK Moment Solvers
Digital Twin State Updated
Clinician View Review Ready
CLINICAL QUESTIONS

Frequently Asked Questions

Answers to common inquiries regarding biomechanical digital twin technology.

A biomechanical digital twin is a dynamic computational representation of a person's musculoskeletal system. Rather than a static anatomical diagram, it models movement kinematics, joint angles, ground reaction forces, and internal structural loads over time.

The platform accepts multi-modal signals including inertial measurement units (IMUs), markerless smartphone computer vision pose feeds, and plantar force arrays.

No. KineticTwin AI is designed as a clinical decision support concept to surface biomechanical patterns for qualified healthcare professionals. It does not provide autonomous medical diagnoses or treatment recommendations.

Inverse kinematics transforms observed spatial coordinates into articulated joint angles, while inverse dynamics calculates the internal moments and contact loads that produced the observed movement.

ORCHESTRATE THE TWIN

See what continuous movement can reveal.

Explore our interactive simulation with synthetic patient data or discuss your clinical monitoring workflows with our team.

Launch Interactive Simulation Request a Clinical Conversation