Electrotherapy is a physical therapeutic treatment whereby electrical stimulation is applied to nerves and muscle-motor fibres via electro-pads placed on the skin. There are different types of electrotherapeutic devices in rehabilitation clinics today, with T.E.N.S. being one of the most popular options.
2002. Rings on her fingers and bells on her toes A line from the nursery rhyme Ride a Cock-Horse: Rings on her fingers and bells on her toes, / She shall have music wherever she goes. http://www.bartleby.com/59/6/ringsonherf...ide a cock-horse to Banbury Cross, To see a fair lady ride on a white horse; With rings on her fingers and bells on her toes, She shall have music wherever she goes.
To me, to keep a people on their toes refers to quality of work, not quantity. It means to provide people with opportunities to practice their skills and to maintain their abilities. The toes metaphor I think refers to being poised to jump or to start running, not so much to doing lots of jumping or running.