Kots and Xvilon11 reported a 2-part study, not using
2.5-kHz AC, but rather using short-duration
(1-millisecond) rectangular PC at a frequency of 50 Hz.
In the first part of their study, they determined optimum
“on” and “off” times for stimulation. Their findings
provide the rationale for the “10/50/10” treatment
regimen that is characteristic of treatment with Russian
electrical stimulation. In the second part of their study,
they examined the force-enhancing effect of a single
10-minute training session done daily or every second
day for a period of 9 or 19 days