Stroke is the leading cause of non-traumatic disability in adults. Two-thirds of survivors suffer from walking disorders and are limited in their daily-life activities.
At the occasion of the World Stroke Day, we would like to share a recent study conducted this year in Switzerland.
This study tried to assess the influence of Botulinum toxin injection (BTI) in ankle plantarflexors on preferred walking speed and gait endurance in chronic stroke patients. Botulinum toxin injection (BTI) represents the gold standard therapy for focal spasticity.
For the purpose of this study,12 stroke patients were assessed one month before and after a BTI at the service of Neuropsychology and Neurorehabilitation (CHUV). Two wearable inertial sensors Physilog® were used during a 10-Meter Walk Test (10mWT) to record spatio-temporal gait parameters including walking speed.
The study concludes that BTI alone improved prefered walking speed in chronic stroke patients but had no effect on gait endurance after one month. Decrease in ankle plantar flexors spasticity and increase in passive dorsiflexion appeared to improve the initial stance phase on affected lower limb, thus optimizing swing phase on unaffected side.
Community ambulation is one of the most important goals for stroke patients. Gait analysis, transfer quality and balance functions are essential to assess the potential for recovery and adapt therapeutic strategies. Inertial sensors offer clinicians a brand new solution to assess and monitor patients’ abilities and recovery potential. Instrumented walk tests allows better diagnosis, more accurate treatments readjustments, easy follow-up from the clinic to patients’ home and offer home-based and real-life evaluations.
This study was jointly conducted by C. Zwissig (1) (2) (3), C.Hennemann (1) (4), E. Opsommer (1) and D. Malatesta (2)
- School of Health Sciences (HESAV), University of Applied Sciences and Arts Western Switzerland (HES-SO), Lausanne, Switzerland.
- Institute of Sport Sciences (ISSUL), Faculty of Biology and Medicine, University of Lausanne (UNIL), Switzerland
- Department of Clinical Neuroscience (DNC), Lausanne University Hospital (CHUV). Switzerland
- Department of Intensive Care (APSI), Geneva University Hospitals (HUG), Switzerland