Fig. 5:

Delivery of 120 and 240 pulses at a frequency of 60 Hz created a metabolic demand sufficient to drop glucose and lactate concentrations well below baseline. (a) Glucose concentrations were depleted significantly more than those of lactate in response to both the 120-and 240-pulse stimulations (*p < 0.05). (b) Overall, differences in the amount of time that glucose and lactate concentrations remained below baseline were not dependent on stimulation duration.