Posts Tagged ‘aerobic activity’

Keep Exercising to Age Gracefully

To age gracefully, keep exercising to keep your muscles strong and fit.

A new study just published online in the FASEB Journal suggests that aerobic activity increases the training effect of exercise for older people, whether they have a protein drink or a carbohydrate drink after exercise.

“It is not a mystery that exercise and nutrition help slow the aging process,” said Benjamin F. Miller, Ph.D., a researcher involved in the work from the Department of Health and Exercise Science at Colorado State University in Fort Collins, CO.

“Studies such as ours help to explain how exercise and nutrition work so that we can better take advantage of those pathways to slow the aging process.”

The Colorado researchers recruited 16 participants, average age 50, and had them exercise on treadmills for 45 minutes 3 times a week for 6 weeks.

A younger untrained group provided a non-exercising comparison.

After each treadmill session, one group of exercisers was given a mixed carbohydrate-and-protein drink and another group of exercisers was given a carbohydrate drink.

The researchers took muscle biopsies at the end of the 6 weeks to determine how much of the muscle and its component pieces were new.

They found that muscle protein synthesis was significantly higher in the older exercise groups than the younger sedentary group.

Contrary to other studies, consuming protein after exercise did not increase skeletal muscle protein synthesis rates.

This shows that endurance exercise, which is commonly prescribed for older people for a healthful lifestyle, can induce positive changes in skeletal muscle structure.

The bottom line: Don’t concern yourself about what you drink after exercise.

Just make sure you get out and exercise regularly.