Table 1.

Summary experimental groups

Group	Stimulation Frequency, Hz	Pulse Train Length, no. of pulses	Pulse Train Length, s	Duration of the Experiment, min
Group 1 (rest)	No stimulation			120 min
Group 2	1	5	5	20 min*
Group 3	5	10	2	20 min*
Group 4	10	10	1	20 min*
Group 5	40	10	0.25	20 min*
Group 6	40	20	0.5	20 min*
Group 7	80	10	0.125	20 min*

^*Protocol consisted out of 2-min rest, 8-min electrical stimulation, and 10-min rest.