Responders to Wide-Pulse, High-Frequency Neuromuscular Electrical Stimulation Show Reduced Metabolic Demand.
The low frequency work and a short pulse width induces a greater energy response compared to the voluntary contraction protocol. This shows that the use of electrostimulation in a workout produces a greater energy expenditure than without electrostimulation. Conversely, high frequency with a wide pulse width could cause at least some subjects a different motor unit recruitment compared to low frequency and a short pulse width. What makes us think that some subjects respond more to high frequency with a wide pulse width than at low frequency with a short pulse width.
For this, in this study, 18 healthy subjects were divided into three groups:
- Group of high frequency and wide pulse width.
- Group of low frequency and short pulse width
- Control group without electrostimulation.
When analyzing the results it was seen that the group that responds with the protocol of high frequency and long pulse width the metabolic demand was quite lower than in the group that does not respond to said frequency and pulse width. On the other hand, the protocol of low frequency and short pulse width in terms of metabolic demand was higher in the group that responds to the high frequency and wide pulse width compared to the group that does not respond. However, in the two sen groups they have obtained high levels of metabolic demand.
Analyzing the above, we can conclude that it is more efficient to work at low frequency and short pulse width for a higher energy demand than high frequency work and long pulse width.