Dietary Supplements Strengthen Effects of Exercise for Seniors

October 4, 2007

HAMILTON, Ontario -- Creatine and conjugated linoleic acid supplements may safely boost the effects of weight training exercise for older adults, researchers found.

HAMILTON, Ontario, Oct. 4 -- Creatine and conjugated linoleic acid supplements may safely boost the effects of weight-training exercise for older patients, researchers found.

Men and women ages 65 to 85 on a six-month resistance exercise training regimen saw a significant gain in muscle (+2.1 kg, P=0.02) and loss in fat mass (-1.9 kg, P

None of the participants took part in sports or vigorous exercise more than three times a week before the study or had done resistance training exercises in the prior two years. The group was relatively healthy without heart problems or need for assistive devices for mobility.

The total "volume" of exercise recorded by participants was similar between groups during the program.

After six months, resistance exercise training increased fat-free mass measured by dual energy x-ray absorptiometry (DEXA) scan 2.1 kg on average in the supplement group (P=0.02 versus baseline) compared with 0.9 kg in the placebo (P=0.06). The difference between groups was significant for men and women (both P

They found a "minor" but significant increase in total and LDL cholesterol with exercise (P