A new study on weightlifting reveals two insights. Weightlifting can strengthen the connections between nerves and muscles, and this strengthening can occur later in life.
actually start lose muscle mass One reason is the loss of muscle fibers that occurs before the age of 40 when motor neurons (cells in the brain and spinal cord that tell our bodies to move) break down.
This decline cannot be stopped, but new research shows that it can be significantly slowed. Protect your neurons. This is essential for the normal functioning of the body.
“To date, researchers have been unable to demonstrate that weight training can strengthen the connections between motor neurons and muscles. Our study is the first to present findings that suggest this is indeed the case. .” Exercise physiologist Casper Søndenbroe says Graduated from the University of Copenhagen, Denmark.
This is partly due to the challenge of sampling enough tissue where muscle cells and nerve cells connect to make meaningful measurements. To overcome this, researchers instead looked for biomarkers associated with the stability of junctions between neurons and muscles in participants’ biopsy samples.
The study involved 38 healthy older men with a mean age of 72 years who underwent a 16-week course of fairly intensive weightlifting training, including leg press, leg extension, leg curl, and two upper arm exercises. Another group of 20 healthy older men, again with a mean age of 72 years, did not undergo weight training and were used as a control comparison.
Weight training sessions were performed three times a week, and after two months (in the middle of the experiment) differences in muscle size and fitness were seen. Researchers collected muscle biopsies and found detectable changes in biomarkers.
From back cramps to knee pain, weight training can slow some of this breakdown between your muscles and nervous system without actually undoing it. It suggests that getting started allows the body to build a “reserve” to rely on.
“This research shows that even if you start late in life, you can make a difference.” Sondenbrough says.
“Of course, the sooner you start, the better, but if you’re 65 or 70, it’s never too late. Heavy weight training is good for your body.”
many people around the world Live long And the longer it lasts, the more important the issue of maintaining a good quality of life in our later years. This includes keeping your muscles working as long as possible.
The next step in this particular area of research is to figure out how strength training helps keep nerves and muscles together.
“We need to identify the mechanisms by which weight training strengthens the connection with the nervous system.” Sondenbrough says.
“There are many different ways to do this, but our goal is to help as many older people as possible not only live longer, but also experience happiness.”
This research American Journal of Physiology: Cell Physiology.