Short-latency crossed spinal responses are impaired differently in sub-acute and chronic stroke patients

Highlights ► Short-latency crossed spinal interlimb reflexes are impaired differently in sub-acute and chronic stroke patients. ► The reflexes are impaired from the non-paretic to paretic and paretic to non-paretic extremities in both patient groups suggesting that projections to the paretic and non-paretic extremities modulate the response. ► The inappropriate modulation of these reflexes may result in an inability to appropriately modify the muscle activity of the opposite leg subsequently reducing the ability to quickly avoid obstacles (which may contribute to falls).