April 27, 2026

@michaelokun

Pickleball tremor: when movement quiets the shake. What is task-specific tremor? Task-specific tremor refers to shaking that appears only during a particular action or context, rather than all the time. Jankovic describes in a new paper in Movement Disorders Clinical Practice a fascinating observation of pickleball tremor in a person w/ Parkinson’s. He compares it to shopping bag tremor. Ganguly and colleagues responded to the observation w/ important insights on what this may mean biologically. Key Points: - Tremor can emerge when holding a pickleball paddle, yet disappear the moment the ball is struck, highlighting strong context dependence of motor symptoms. - This phenomenon resembles load-related tremors such as shopping bag tremor, where sustained weight holding triggers rhythmic shaking. - Tremor may be shaped by dynamic brain networks, where task demands and mechanical load influence how tremor is expressed. The person shaping the observation had Parkinson’s disease. My take: This is a beautiful reminder that tremor is frequently not static. It can be dynamic, context driven and deeply tied to how the brain interacts w/ the body during real world tasks. The idea that hitting the ball can turn off tremor should make all of us think differently about therapy, exercise and how we evaluate tremors. Here are 5 points that resonated w/ me: 1- Tremor is not just about disease severity, it is about context and what the body is doing in that moment. 2- Mechanical load matters and the weight of an object may amplify or dampen tremor. 3- Brain circuits may switch states depending on task demands and sensory feedback. 4- Exercise like pickleball can be both enjoyable and therapeutic even in the presence of visible tremor. 5- Studying real world activities using wearables and EMG may unlock more personalized strategies for managing tremor. https://movementdisorders.onlinelibrary.wiley.com/doi/10.1002/mdc3.70618 https://movementdisorders.onlinelibrary.wiley.com/doi/10.1002/mdc3.70619 #michaelokun #fixelinstitute #parkinson #pickelball