Are vibration plates safe for seniors or people with joint pain?

r/physicaltherapy threads and Women's Health UK note that low-speed vibration can help with stiffness, circulation and muscle recovery, and several long-haul Covid and lipedema users on Reddit report positive results. However, the r/Lymphedema community has flagged neck pain from standing use, so reviewers generally suggest starting at the lowest setting and sitting rather than standing initially.