Effect of interferential current on deep abdominal muscle thickness.

Area of Science:

• Physiology
• Rehabilitation Medicine
• Sports Science

Background:

• Deep abdominal muscles play a crucial role in core stability and posture.
• Electrical muscle stimulation (EMS) is explored as a method to enhance muscle function.
• Interferential current (IFC) offers a unique modality for deep muscle activation.

Purpose of the Study:

• To evaluate the impact of different modulated interferential currents on the thickness of deep abdominal muscles.
• To determine the optimal IFC parameters for abdominal muscle training in healthy adults.
• To assess the reliability of ultrasound imaging for measuring changes in abdominal muscle thickness during IFC.

Main Methods:

• Twenty-two healthy male participants were recruited.
• Ultrasound imaging was used to measure deep abdominal muscle thicknesses.
• The rate of change in muscle thickness was compared across various IFC conditions (2.5 kHz and 20 Hz).

Main Results:

• Interferential current at 2.5 kHz and 20 Hz demonstrated a significantly greater rate of change in muscle thickness compared to other conditions.
• The reliability of muscle thickness measurements, indicated by the interclass correlation coefficient, ranged from 0.738 to 0.998, signifying normal to good reliability.
• Specific IFC parameters were identified as effective for stimulating deep abdominal muscles.

Conclusions:

• Interferential current at 2.5 kHz and 20 Hz is a viable and reproducible method for training deep abdominal muscles.
• Ultrasound imaging provides reliable data for assessing muscle thickness changes during electrical stimulation.
• This study supports the use of specific IFC parameters for targeted abdominal muscle strengthening.