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Hybrid Training System Shows Promise for Reducing Liver Stiffness in NAFLD Patients

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Clinical trial finds that using electrical stimulation plus walking can improve liver stiffness in NAFLD patients

Nonalcoholic fatty liver disease (NAFLD) is a common condition in which excess fat is accumulated in the liver of people who drink little to no alcohol. It is associated with obesity, insulin resistance, and metabolic syndrome, which increases the risk of developing other serious health problems such as type 2 diabetes, cardiovascular disease, and liver cirrhosis. The early stage of NAFLD is called nonalcoholic fatty liver (NAFL), which typically does not cause symptoms. However, in some cases, NAFL may progress to nonalcoholic steatohepatitis (NASH) associated with inflammation and damage to liver cells.

Increased liver stiffness and insulin resistance are two crucial therapeutic targets in patients with NAFLD. Liver stiffness is a measure of how hard or stiff the liver is, which can indicate the presence of liver fibrosis or scarring. In other words, liver stiffness is an indirect measure of liver damage. When the liver is damaged, it tries to repair itself by forming scar tissue, which can increase liver stiffness. A non-invasive technique called transient elastography can be used to measure liver stiffness.

Clinical Trial

Researchers have developed a hybrid training system (HTS) that combines electrical stimulation and volitional contractions to improve these outcomes. In a clinical trial, the effects of walking (at a speed of 5.6 km/h) with and without simultaneous HTS were compared on liver stiffness and insulin resistance in 32 patients with NAFLD.

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The researchers randomized the patients to 12 weeks of triweekly 30-minute walking exercise with either HTS (HTS group) or without HTS (control group). Liver stiffness, body weight, visceral fat, fasting blood glucose, serum aspartate aminotransferase, alanine aminotransferase, and gamma-glutamyl transpeptidase were measured.

The trial found that in patients with a BMI of 27 or more, the HTS group significantly decreased liver stiffness more than the control group. This suggests that combining electrical stimulation with walking may decrease liver stiffness in people with NAFLD. The HTS was also found to increase the exercise effect without increasing the walking speed, which could be especially useful for obese or overweight individuals who often have joint problems and are at higher risk of developing NAFLD. However, the effects of HTS on insulin resistance and body composition were not apparent, thus requiring further investigation.

Conclusion

The study provides promising results for using the hybrid training system to reduce liver stiffness in people with NAFLD. Further studies are needed to assess the impact of this system on other aspects of NAFLD, including insulin resistance and body composition. Nevertheless, the findings highlight the importance of exercise in managing NAFLD and suggest that combining exercise with electrical stimulation could be a beneficial therapy for this condition.
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This content is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of such advice or treatment from a personal physician. All readers/viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions. CenTrial Data Ltd. does not take responsibility for possible health consequences of any person or persons reading or following the information in this educational content. Treatments and clinical trials mentioned may not be appropriate or available for all trial participants. Outcomes from treatments and clinical trials may vary from person to person. Consult with your doctor as to whether a clinical trial is a suitable option for your condition. Assistance from generative AI tools may have been used in writing this article.