For this pilot study, the investigators hypothesize that there will be durational improvements in gait related mobility on the instrumented TUG and 10-meter walk tests 4-6-weeks post upper extremity Xeomin® injection. Physical function will be quantified as time to complete the instrumented TUG.~A one-group pretest-post-test experimental design will be used. Participants will be tested on the primary and secondary outcome measures before upper extremity injection with Xeomin® and 4 to 6 weeks thereafter. Additionally, participants will be contacted for an end of study visit via telephone approximately 12-weeks post Xeomin® injection to obtain information regarding any adverse events and gain insight into the therapeutic duration of the Xeomin®. The proposed duration of the study is 2 years to allow adequate time for screening, recruitment and follow-up.
The aim of the present pilot study is to evaluate the association between change in gait related mobility in ambulatory male and female adult hemiparetic patients before and 4-6-weeks after Xeomin® injection into the upper limb, using two standardized tests of physical function in outpatient rehabilitation that are widely used; the 10-meter walk test and the timed 'up and go' test (TUG).