My coach called out this article in the New York Times about training and aging. Seems there is hope for us middle-aged chronics after all!
Here are some highlights:
- Researchers say that you should be able to maintain your muscles as you age, including the muscle enzymes needed for good athletic performance, and you should be able to maintain your ability to exercise for long periods near your so-called lactic threshold, meaning you are near maximum effort. But you have to know how to train, doing the right sort of exercise, and you must keep it up.
- “Train hard and train often,” said Hirofumi Tanaka, a 41-year-old soccer player and exercise physiologist at the University of Texas. Dr. Tanaka said he means doing things like regular interval training, repeatedly going all out, easing up, then going all out again. These workouts train your body to increase its oxygen consumption by allowing you to maintain an intense effort.
- “One of the major determinants of endurance performance is oxygen consumption,” Dr. Tanaka said. “You have to make training as intense as you can.”
This advice fits right into the training philosophy of Endurance Nation. Of course, we build in easy days, and recovery, but the program is based on intensity rather than slogging through a lot of long, slow volume. Seems it's the right approach not only for getting faster, which I am, but also for keeping us aging athletes going and going well. Plus, it feels so motivating to work hard and strive to be better/fitter/faster/leaner.
Some of the bad news--or unfortunate, wish-this-didn't-have-to-happen news--is:
The reason people become slower is that oxygen consumption declines with age.
Maximum heart rate does steadily falls by about seven to eight beats per minute per decade. It happens with or without training, in sedentary and in active people, Dr. Tanaka said, and no one knows why. But as a result, the heart cannot pump as much blood at maximum effort.
The lungs of older athletes cannot take in quite as much air. With a slower heart rate and less oxygen in the lungs, less oxygen-rich blood gets to the muscles. In one study, Dr. Joyner found that highly trained athletes age 55 to 68 had 10 to 20 percent less blood flow to their legs than athletes in their 20s.
Here's the link to the article.
All I know is that I'll keep shoveling sand against the tide, a little every day, for as long as I can. I read this kind of science and find great hope that I'll someday be winning that 70-75 age group!