Genes may thwart seniors' exercise gains

The ACE I/D gene and how its variations -- the ID, DD, and II genotypes -- cause some seniors' to lose out on the benefits of exercise, new research shows. These findings suggest that the ACE I/D genotype may be a significant factor in how well seniors respond to exercise. This insight could be used to develop more effective, individualized, and senior-friendly exercise recommendations for improving physical function and preventing in disability.