Exercise improves liver health.
It’s pretty widely known that chronic over-indulgence in alcoholic beverages can play havoc with one’s liver — in extreme cases ending up with cirrhosis and a non-functioning organ. But non-drinkers can also have liver problems. In particular, there is one called non-alcoholic fatty liver disease, or NAFLD, which is a risk factor for chronic liver disease and cardiovascular disease, according to the authors of a recent report in JAMA Internal Medicine. NAFLD is a condition in which triglycerides (fats) accumulate within liver cells. If the accumulation is extensive enough it can trigger inflammation and a condition known as steatosis, which can then progress to irreversible cirrhosis.
The authors of the report conducted a randomized clinical trial to investigate the effects of different levels of exercise on NAFLD in obese Chinese adults. Led by Dr. Hui-Jie Zhang from the First Affiliated Hospital of Xiamen University, Xiamen, China, they randomly assigned 220 adults (40-65 years of age) with abdominal obesity and NAFLD – documented by MRI – to one of three exercise conditions. They were particularly interested in ascertaining whether vigorous versus moderate exercise differently affect NAFLD. The three groups were:
- VM: vigorous exercise for 6 months followed by moderate exercise for 6 months.
- M: moderate exercise for 12 months
- C: control — no exercise program.
Participants in the VM group jogged on a treadmill for 30 minutes, 5 days per week, at an intensity equal to 65-80 percent of maximum predicted heart rate. After 6 months, they switched to a moderate level of activity. At this level they walked briskly (about 120 steps per minute) for 30 minutes, 5 days per week. This was about 45-55 percent of maximum heart rate. The M group did the moderate level of activity for the entire 12 months of the study. The C group was asked not to change their activity level. And all three groups were instructed not to change their customary dietary intake.
Read Full Article: Exercise Could Save Your Liver | American Council on Science and Health
|Read Full Article: Exercise Could Save Your Liver | American Council on Science and Health|