Hybrid Gait Analysis System

Objective mobility monitoring in the hospital environment

Clevercare SHAD combines movement kinematics and spatial location to provide precise data on the ambulation of hospitalised patients, even in slow, shuffling or assisted gait.

Geriatrics Rehabilitation Neurology Traumatology
SHAD Hybrid Gait Analysis System
PATIENTS
WRISTBANDS
FLOOR PLAN
CONFIGURATION
Log out
On ward
Admission
List
Patient list
4 records · NHC 7 – 13
On ward
NHC Patient Dist. Speed Score
13
● ON WARD · 19/05/2026
1.260 m 0,54
0,78
11
DISCHARGED · 04–07/05/2026
649 m 0,41
0,76
9
DISCHARGED · 29–30/04/2026
847 m 0,80
0,84
7
DISCHARGED · 22–28/04/2026
3.975 m 0,45
0,84
Detail · NHC 13 · On ward
Active
1.260 m
distance
0,54
m/s mean speed
0,78
activity score
0 0,78 / 1,0

Hospital deployment areas

Hybrid model:
kinematics + space

Clevercare SHAD overcomes the limitation of conventional podometry-based systems, which show low sensitivity in patients with slow, shuffling or assisted gait.

1
Sensor on the patient

Measures the intensity, regularity and continuity of movement directly on the shoe or technical aid (cane, crutch, walker), reducing dependence on arm swing.

2
Zone detectors (antennas)

Installed on the hospital ward, they record effective movements between zones — room, corridor, nursing station, rehabilitation room — with configured real distances.

3
Intra-zone analysis

Analyses sensor signal variations to detect activity even without zone change: micro-activity, postural transfers and mobility within the room.

Beyond step counting

The system integrates three complementary dimensions that provide a complete picture of the patient's functional mobility.

Activity score (0–1)

A continuous index integrating magnitude, regularity, acceleration, temporal continuity and displacement context. It does not measure raw mechanical events, but real functional intensity.

Activity and inactivity time

Differentiates between detected functional movement (displacement, slow or assisted gait, intra-zone activity) and time at rest, sitting or minimal activity.

Total distance per session

Combines real configured distances between antennas (inter-zone) with kinematic estimation of internal activity within each zone, even with gentle or intermittent movements.

Real displacement speed

Calculated from fixed physical distances between beacons and actual elapsed time, without estimating step length. Accurately reflects gait capacity in the hospital context.

Continuous spatial location

Records routes between zones with a hospital ward map. Shows which areas the patient covers and how frequently throughout their admission.

Longitudinal patient follow-up

Evolution of all parameters throughout admission. Objective basis for assessing response to rehabilitation interventions and early detection of functional changes.

Monitoring results — geriatrics ward

Data from a 30-day monitoring period on a 40-bed geriatrics ward. Each patient wears a sensor from admission to discharge.

40 Patients monitored
simultaneously on ward
0,81 Mean activity score
across all active patients
7 Patients flagged
below 0,8 m/s risk threshold
62%
Patients with score > 0,75
Optimal functional pattern
Walking speed distribution
> 1,0 m/s
8 pts
0,8 – 1,0
25 pts
0,6 – 0,8
4 pts
< 0,6 m/s
3 pts
⚠ 7 patients below 0.8 m/s clinical threshold
Clinical alerts · Last 24 h
Speed < 0.6 m/s
High functional risk
3
Score < 0.50
Reduced mobility
5
Score ≥ 0.75
Optimal pattern
25
0,55 m/s — weighted mean speed (4 admissions)
0 m/s ↑ 0,8 m/s (umbral) 1,5 m/s
Speeds below 0.8 m/s are associated with risk of functional decline, dependency and need for clinical supervision.

Real speed, no estimates

Unlike conventional step counters, the system calculates speed from fixed physical distances between receivers and the actual recorded time, without estimating step length — which is variable and imprecise in patients with pathological gait.

This parameter integrates motor capacity, postural control, endurance and gait safety, making it a high-value functional indicator in the hospital context.

The mean speed observed in clinical monitoring is consistent with a slow or assisted gait profile, typical in geriatrics, rehabilitation and neurology wards.

The index that measures movement quality

The score is a continuous index between 0 and 1 that goes beyond counting steps or measuring displacement. It simultaneously integrates five dimensions of movement:

Magnitude and intensity
How intense the registered acceleration is during movement.
Pattern regularity
Whether the gait cycle is symmetric and repetitive or, on the contrary, irregular and asymmetric.
Temporal continuity
Whether the activity is sustained over time or occurs in short, intermittent bursts.
Functional acceleration
The capacity to initiate and vary movement, reflecting motor control and functional reserve.
Spatial context
Whether the movement involves effective displacement between zones or intra-zone activity (within the room).
Key clinical interpretation

A high score with low speed does not indicate functional decline. It may reflect that the patient prioritises gait safety over speed — a common and adaptive pattern during recovery. What matters is the trend of each indicator over time, not its absolute value at any single moment.

Score scale (0 – 1)
00,250,500,751,0
0–0,25
Micro-activity or rest
Minimal mobility. Postural changes or occasional transfers.
0,25–0,5
Moderate activity
Intra-zone mobility. Slow or assisted gait with frequent interruptions.
0,5–0,75
Functional activity
Continuous gait with a reasonably regular pattern. Good functional reserve.
0,75–1,0
Optimal pattern
Fluid, symmetric and sustained gait. Indicator of good functional capacity.
Daily functional evolution — Speed and Score

Shows the day-by-day evolution of two indicators of the patient's functional capacity during admission.

Mean speed (m/s): real walking speed.  ·  Mean score: movement quality index (0–1). Values close to 1 indicate an optimal movement pattern.

The two series have independent scales and are not directly comparable in absolute value. What matters is the trend of each line over time. A high score with low speed may indicate that the patient prioritises gait safety over speed.
Mean score · Speed (m/s) 0,90 0,80 0,70 0,60 0,50 0,40 0,75 0,68 0,83 0,87 0,81 0,89 0,76 0,71 0,80 0,67 0,72 0,65 0,49 0,41 0,54 0,52 0,48 0,74 07/05 08/05 09/05 10/05 11/05 12/05 13/05 14/05 15/05 Date (2026) Mean speed (m/s) Mean score (0–1) — independent scale

Real-time location
on the ward floor plan

The SHAD platform integrates an RTLS (Real-Time Location System) that overlays patient movement data directly onto the hospital floor plan, enabling clinical teams to visualise routes, zones visited and real displacement at a glance.

Real-time location
Patients are located in real time via BLE beacons (receivers) and wearable emitters, without GPS or cameras.
Configurable floor plan
Each hospital can upload its own floor plan and configure zones, distances between receivers and anchor points via the built-in editor.
Fingerprint calibration
The system uses signal fingerprinting to improve location accuracy within each zone, even in complex environments with multiple rooms and corridors.
Route and distance tracking
Every displacement between zones is recorded with timestamp and real distance, forming the basis for the activity score and speed calculations.
SHAD
Floor plan · Location
PATIENTS
WRISTBANDS
FLOOR PLAN
Location
Floor plan list
Editor
Fingerprint
Habitación Baño · Baño Habitación Baño · Baño Habitación Baño · Baño Habitación Baño · Baño OFFICE C O R R I D O R Habitación Habitación OFFICE Escritorio OFFICE Escritorio CONTROL OFFICE OFFICE OFFICE OFFICE OFFICE OFFICE OFFICE OFFICE C O R R I D O R Baño · Baño Habitación Baño · Baño Habitación Baño · Baño Habitación Baño · Baño Habitación OFFICE GW GW GW GW GW GW GW GW GW GW T T T T T T T T Strong signal · GW 3.8 m · Room N2 → Corridor Score 0,78 · 0,54 m/s GW Gateway T Transit node Emitter Patient (active) RF edge
2 patients active · Real-time
8 GW · 6 T nodes
Comparative analysis

Hybrid gait analysis vs. conventional step counters

Conventional step-counting devices are designed for healthy subjects in everyday contexts. In hospitalised patients with slow, shuffling or assisted gait, their limitations are clinically significant. Here is how a hybrid approach addresses each of those gaps.

✓ Hybrid analysis — Clevercare SHAD
Complete clinical monitoring
Functional activity score (0–1) — integrates movement magnitude, regularity, acceleration and temporal continuity into a single clinical indicator.
Real speed from fixed infrastructure — calculated from known distances between receivers and actual elapsed time, with no reliance on step length estimation.
Sensitive to all gait patterns — detects micro-activity, intra-zone mobility and slow or assisted gait that step counters systematically miss.
Sensor placement flexibility — works on the shoe or any technical aid (cane, crutch, walker), independent of arm swing.
Spatial context on the ward floor plan — records which zones the patient visits, when, and the real distance covered between them.
Conventional step counters
Limitations in the clinical context
Count steps, not function — they record mechanical gait events but provide no insight into movement quality, regularity or effort.
Estimated speed, not measured — speed is derived from assumed step length, which varies widely in patients with pathological, slow or assistive-device gait.
Blind to slow and assisted gait — detection thresholds optimised for healthy adults fail to capture clinically relevant mobility in hospital patients.
No intra-zone activity detection — any movement that does not result in a full step cycle (transfers, postural changes, in-room mobility) goes unrecorded.
No spatial awareness — no information about where on the ward the patient moves, which zones they visit or how far they actually travel.

Applicability in hospital wards

Designed to integrate into the usual clinical workflow of units with a high prevalence of patients with reduced mobility or in functional recovery.

Key routes

Records of routes between room, corridor, nursing station and rehabilitation room with real distances and times.

Longitudinal follow-up

Evolution of mobility throughout admission, response to interventions and early detection of functional decline.

Functional risk

Continuous monitoring of patients with low mobility or risk of decline, facilitating timely preventive clinical intervention.

Objective clinical decisions

Quantitative basis for early mobilisation, rehabilitation adjustment and evolutionary assessment, with reproducible, observer-independent data.

Contact

Any questions?

For technical information, deployment conditions or to request clinical documentation, puede contactar con nuestro equipo.

For any enquiry about the system, compatibility with your hospital environment or available technical documentation, please write to us at:

info@gaitanalytics.eu