The purpose of this clinical study is to evaluate the effect of Whole Body Vibration (WBV) therapy, applied two weeks after botulinum toxin type A (BoNT-A) injection, on spasticity and balance parameters in individuals with stroke who have ankle spasticity. The main questions it aims to answer are: Adjuvant WBV therapy administered after BoNT-A injection;
* Does it effectively improve spasticity?
* Is it an effective intervention for balance and walking functions? Researchers will compare the application of WBV to a placebo application (a vibration-free application) to evaluate the effect of adjuvant WBV therapy administered after BoNT-A injection on ankle spasticity, balance, and walking function in individuals with stroke.