Exploiting Interlimb Arm and Leg Connections for Walking Rehabilitation: A Training Intervention in Stroke

Abstract EN

Rhythmic arm and leg (A&L) movements share common elements of neural control.

The extent to which A&L cycling training can lead to training adaptations which transfer to improved walking function remains untested.

The purpose of this study was to test the efficacy of A&L cycling training as a modality to improve locomotor function after stroke.

Nineteen chronic stroke (>six months) participants were recruited and performed 30 minutes of A&L cycling training three times a week for five weeks.

Changes in walking function were assessed with (1) clinical tests; (2) strength during isometric contractions; and (3) treadmill walking performance and cutaneous reflex modulation.

A multiple baseline (3 pretests) within-subject control design was used.

Data show that A&L cycling training improved clinical walking status increased strength by ~25%, improved modulation of muscle activity by ~25%, increased range of motion by ~20%, decreased stride duration, increased frequency, and improved modulation of cutaneous reflexes during treadmill walking.

On most variables, the majority of participants showed a significant improvement in walking ability.

These results suggest that exploiting arm and leg connections with A&L cycling training, an accessible and cost-effective training modality, could be used to improve walking ability after stroke.