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Catwalk Treadmill Gait

Detailed locomotor kinematics from treadmill gait recordings

Stride length, stance duration, swing phase, paw print area, and inter-limb coordination — computed automatically from ventral paw video on standard treadmill setups.

Catwalk Treadmill Gait
4
Paws tracked independently
12
Gait parameters per paw
<5ms
Stride timing precision
0
Proprietary hardware required
The problem

Treadmill gait analysis requires expensive proprietary systems

CatWalk-style ventral paw analysis traditionally requires a proprietary walkway system costing $30,000+. Labs with standard treadmills or glass walkways cannot access the same level of gait analysis without manual frame-by-frame scoring.

  • Proprietary CatWalk systems cost $30,000+ for hardware and annual software licenses
  • Manual frame-by-frame paw scoring from ventral video takes 10x real time
  • Inter-limb coordination patterns require simultaneous tracking of all four paws
The solution

HMM-based stride detection from standard treadmill video

ConductVision processes ventral paw video from any transparent treadmill or walkway. Hidden Markov Model-based stride detection classifies stance and swing phases for each paw independently, computing the full suite of gait parameters.

  • Works with any transparent treadmill or walkway — no proprietary hardware needed
  • HMM stride detection classifies stance/swing phases for each paw independently
  • Full gait parameter suite: stride length, stance duration, swing duration, duty cycle, base of support, print area
Endpoints

Treadmill gait measures

Per-paw gait parameters

Per-paw gait parameters

Stride length, stance duration, swing duration, stride frequency, duty cycle, and paw print area for each of four paws.

CSVJSON
Inter-limb coordination

Inter-limb coordination

Phase relationships between limbs: regularity index, coupling symmetry, and step sequence pattern classification.

CSV
Paw print analysis

Paw print analysis

Print area, print length, print width, toe spread, and print intensity for each footfall — detecting guarding and weight distribution changes.

CSVPNG
Applications

Gait analysis applications

Pain models

Neuropathic pain gait analysis

Paw placement asymmetry, reduced print area, and altered duty cycle on the affected side quantify pain-related gait changes.

Measures
  • Paw print area asymmetry
  • Duty cycle ratio
  • Stance duration difference
Spinal cord injury

Locomotor recovery tracking

Inter-limb coordination recovery after SCI — regularity index and step sequence pattern improvement over weeks.

Measures
  • Regularity index
  • Step sequence pattern
  • Base of support
Parkinson models

Dopaminergic gait deficits

Stride length reduction, increased stride variability, and shuffling gait pattern in 6-OHDA and MPTP models.

Measures
  • Stride length
  • Stride-to-stride variability
  • Swing speed
Peripheral neuropathy

Chemotherapy-induced neuropathy

Toe spread reduction and print area changes detect peripheral neuropathy from chemotherapy or diabetic models.

Measures
  • Toe spread
  • Print area
  • Paw intensity distribution
Compared to typical systems

How ConductVision differs

FeatureConductVisionTypical systems
Hardware requirementAny transparent treadmill/walkwayProprietary CatWalk system ($30K+)
Stride detection methodHMM-based (adaptive)Threshold-based (manual tuning)
Continuous recordingUnlimited durationRun-by-run segmented
Inter-limb coordinationAutomatic phase analysisManual calculation
Annual software license$1,490$5,000+ per year

Full gait analysis from your existing treadmill

Upload ventral paw video and get the complete suite of gait parameters without proprietary hardware.