Which parameters should be used for achieving strength gains through electrical stimulation?

Achieving strength gains through electrical stimulation primarily relies on the application of high frequency biphasic current. This type of current is particularly effective because it can produce a muscle contraction that is both strong and comfortable for the patient. High frequency biphasic currents typically range from 30 to 150 Hz, which is optimized to recruit motor units effectively and result in stronger muscular contractions.

The biphasic nature of the current allows it to stimulate both forward and backward flow of electrical current, reducing skin resistance and potentially minimizing discomfort for the patient during treatment. This facilitates a more effective contraction compared to monophasic currents, which may not engage muscle fibers as efficiently for strength training purposes.

Additionally, high frequency biphasic currents are often used in clinical settings to enhance muscle strength and endurance in rehabilitation protocols post-injury or post-surgery. These contractions can mimic the physiological contractions of voluntary muscle activity, making them an ideal choice for strength training through electrical stimulation.