Nonalcoholic fatty liver disease remission in men through regular exercise

Area of Science:

• Hepatology
• Public Health
• Exercise Science

Background:

• Previous studies indicate exercise benefits nonalcoholic fatty liver disease (NAFLD).
• Limited large-scale, longitudinal data exists on exercise's impact on NAFLD remission.
• Understanding exercise's role in NAFLD's natural history is crucial.

Purpose of the Study:

• To investigate the long-term effect of regular exercise on nonalcoholic fatty liver disease remission.
• To analyze exercise's influence on the natural progression of NAFLD in a large cohort.
• To determine if weekly exercise impacts NAFLD remission rates over a decade.

Main Methods:

• A 10-year historical cohort study of 1,010 Japanese participants diagnosed with NAFLD.
• NAFLD diagnosis confirmed via ultrasonographic imaging.
• Regular exercise defined as weekly participation in any sport.

Main Results:

• NAFLD remission observed in 46.0% of men and 48.7% of women over 10 years.
• Regular exercise was associated with a 1.46-fold increased hazard ratio for NAFLD remission in men (p=0.010).
• No significant association between regular exercise and NAFLD remission was found in women.

Conclusions:

• Weekly exercise is linked to higher rates of nonalcoholic fatty liver disease remission in men.
• Further research is needed to explore the mechanisms and gender-specific effects of exercise on NAFLD.
• These findings support exercise interventions for managing NAFLD in men.