Urban Fitness Poles ActivatorACTIVATOR poles may be beneficial for pre post hip knee surgery (upon assessment of a rehab professional), soft tissue injuries, Parkinsons, stroke, MS, chronic pain, cancer rehab, spinal conditions and older adults.* There are currently 10 independent studies on the ACTIVATOR Poles at hospitals and universities in Canada and the renowned Royal Orthopedic Hospital in London, UK. Button locking system for greater weight bearing capacity Maximum User