Optimization Aim: Identify a systematic, methodological approach to device fitting, in-clinic and at-home protocols using the Mollii suit, and optimization of collecting outcome measures at assessment visits. For example, up to 15 participants will complete a portion or all of the procedures listed in the "Procedures Involved" section of this protocol to determine an optimal approach.
Aim 1: Assess the safety of the Mollii suit during an in-clinic or at-home up to 12-week period consisting of up to daily sessions of a 60-minute duration in individuals with pain and/or spasticity from neurological and neuromuscular conditions that cause spasticity, hyperreflexia, and pain.
Aim 2: Evaluate the use of full-body active electrostimulation as compared to full-body sham electrostimulation as an intervention in-clinic or at-home for individuals experiencing pain and/or spasticity due to neurological and neuromuscular conditions that cause spasticity, hyperreflexia, and pain.
