I used to go to this department store, they had a load of home exercise equipment, including a vibration machine.
At the time, I had shocking Varicose Veins, felt bad. After 5-10 mins on the vibration plate, my legs felt great.
Was Googling last night, and it has real benefits for spasticity as well.
sciencebasedmedicine.org/wh...
"Whole body vibration is beneficial for enhancing leg muscle strength among older adults."
ncbi.nlm.nih.gov/pubmed/254...
Plenty of evidence out there.