We all know exercise is good for us. But an exciting new study suggests that certain sorts of workouts may undo some damage of the aging process at the cellular level! This is huge!! Reverse the aging process at the cellular level!
According to an article written by Gretchen Reynolds, NY TIMES, March 23, 2017:
Researchers at the Mayo Clinic in Rochester, Minn. conducted an experiment on the cells of 72 healthy but sedentary men and women who were 30 or younger or older than 64. After baseline measures were established for their aerobic fitness, blood sugar levels, and the gene activity and mitochondrial health in their muscle cells the volunteers were assigned a particular exercise regimen.
Some did weight training a few days per week. Some did interval training. And some did moderate steady paced aerobic training.
Here are the results after 12 weeks:
In general, everyone experienced improvements in fitness and an ability to regulate blood sugar.
The gains in muscle mass and strength were greater for those who exercised only with weights, while interval training had the strongest influence on endurance.
Among the younger subjects who went through interval training, the activity levels had changed in 274 genes, compared with 170 genes for those who exercised more moderately and 74 for the weight lifters.
Among the older cohort, almost 400 genes were working differently now, compared with 33 for the weight lifters and only 19 for the moderate exercisers.
The subjects who did the interval workouts showed increases in the number and health of their mitochondria.
QUOTING DIRECTLY FROM THE ARTICLE:
It seems as if the decline in the cellular health of muscles associated with aging was “corrected” with exercise, especially if it was intense, says Dr. Sreekumaran Nair, a professor of medicine and an endocrinologist at the Mayo Clinic and the study’s senior author.
In fact, older people’s cells responded in some ways more robustly to intense exercise than the cells of the young did — suggesting, he says, that it is never too late to benefit from exercise.
INTERVAL TRAINING IS THE BEST EXERCISE FOR AGING MUSCLES!
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