Lower limb muscle synergies during walking after stroke: a systematic review

A consensus regarding the amount and composition of muscle synergies in stroke patients is difficult. The majority observed three to four muscle synergies. The decrease in amount of synergies can be explained by merging of synergies, often seen in hip/knee extensors with plantar flexors and hip/knee extensors with knee flexors.IMPLICATIONS FOR REHABILITATIONMuscle synergy analyses are a powerful tool for assessing and classifying neurological deficits.A decreased amount of muscle synergies is related to impaired motor function.Differences in coordinated muscle activity was seen in the paretic and non-paretic side.Merging was often seen in hip/knee extensors with plantar flexors and hip/knee extensors with knee flexors.