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Unrestrained walking in cats with partial spinal lesions
T Górska1, T Bem, H Majczyński
1Department of Neurophysiology, Nencki Institute of Experimental Biology, Warsaw, Poland.
Brain Research Bulletin
|January 1, 1993
Summary
Spinal cord lesions in cats altered their walking patterns, increasing homolateral limb support and decreasing diagonal limb support due to impaired coordination. Locomotion analysis revealed significant changes in support variability.
Area of Science:
- Neuroscience
- Comparative Biology
- Biomechanics
Background:
- Partial spinal cord lesions can impact motor control.
- Understanding locomotion changes is crucial for neurological recovery research.
Purpose of the Study:
- To analyze the effects of partial spinal cord lesions on cat locomotion.
- To investigate changes in support patterns and phase durations during walking.
Main Methods:
- Four cats with low thoracic spinal lesions underwent locomotion analysis.
- Parameters including support patterns and phase durations were measured during unrestrained walking.
- Comparison was made between operated and intact cats.
Main Results:
- Operated cats showed greater support pattern variability than intact cats.
- Increased relative duration of homolateral limb support and reduced diagonal limb support were observed.
- Impaired fore-hindlimb coordination, indicated by increased phase shifts, was a primary cause.
Conclusions:
- Partial spinal cord lesions significantly alter quadrupedal locomotion in cats.
- Changes in limb support patterns reflect disrupted interlimb coordination.
- Dorsolateral funiculi integrity is important for maintaining normal locomotion parameters.