We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
“It doesn’t seem to matter how active a person may be been throughout their life; it appears their muscles will still respond and rebuild as well as someone who has been highly active all their life,” said lead researcher Leigh Breen, Ph.D., a senior lecturer in exercise physiology and metabolism at the University of Birmingham.
Fascinating. According to the article, the group with at least 20 years of endurance training had generally the same BMI, body fat and muscle mass as the group with no exercise experience. Doesn't say much for endurance training, does it?
As is always the case with studies like this, the researchers know nothing about strength training. Six sets of 10 reps? On a knee extension machine? Sorry, not conducive to building strength.
One round of exercise was all they did? Well, yeah, the novice effect will of course come into play. If you haven't been exercising, anything you do will show some improvement to your fitness. It's keeping those gains coming that's the hard and important part. But as the endurance athletes started out with the same muscle mass as the sedentary group, it's not surprising both groups showed the same improvement.
Their conclusion and advice, however, is absolutely correct. It's never too late to get stronger and building strength, especially as one gets older, will improve your quality of life.