Background: The goal of this study is to evaluate the effectiveness of eight -week therapy in a patient with writer’s cramp. Study design: A single case study. Method: A 28-year-old adolescent who has been diagnosed with writer's cramp attends an eight-week exercise programme. VAS and ADDS were used as outcome measures in this study. Result: As a result of the study, the patient demonstrated improvements in physical examination, which was evaluated before and after the intervention and included the PNF, Stretching and Task-based activities. Conclusion: The results of this case suggest that the exercise program using PNF, and task based activities may improve the ability to write and do the tasks using his right hand in a patient with Writer's cramp.

Keywords : Writer's cramp, Visual Analogous Scale (VAS), Arm Dystonia Disability Scale (ADDS), Proprioceptive Neuromuscular Facilitation (PNF).