This asymmetry observed in patients with hemiplegia could be attributed to the damage to one hemisphere of the brain caused by stroke and the compensated activity of muscles on unaffected side This as

The observed asymmetry in hemiplegic patients can be attributed to damage to one hemisphere of the brain caused by stroke, and the compensatory activity of muscles on the unaffected side. This asymmetric injury results in impaired ability of the central nervous system on one side to integrate sensory information and issue suitable motor commands, and of the muscles to receive and execute motor commands. This may explain why the muscle network parameters on the affected side were significantly lower than those on the unaffected side. The impaired motor control of the affected limb forces post-stroke patients to change their original balance control habits