“Our lab and others have shown repeatedly” that older muscles will grow and strengthen, says Marcas Bamman, a professor of integrative biology at the University of Alabama at Birmingham. In his studies, men and women in their 60s and 70s who began supervised weight training developed muscles that were as large and strong as those of your average 40-year-old. Skeletal muscles are composed of various types of fibres and “two things happen” to those fibres after we reach middle age, Dr. Bamman says. Older muscles will become larger and stronger if you work them, he says. In order to initiate the biochemical processes that lead to larger, stronger fibres, Dr. Bamman says, you should push your muscles until they are exhausted.

Source: The Hindu December 03, 2016 18:33 UTC