Wednesday, September 7, 2011

You Can’t Flex Fat : Does bodyfat affect muscle gains? by Jerry Brainum

Does having excess bodyfat adversely affect muscular gains? That was the focus of a recent study featuring 140 normal-weight and 81 overweight men and women who hadn’t trained in more than a year.1 They began training twice a week for 12 weeks, doing one-arm biceps curls. The researchers adjusted the training responses for bodyweight and initial values and found that the normal-weight group had made better gains than the overweight group. That led them to conclude that there’s something about being fat that hinders muscular gains.

1 Kelsey, B., et al. (2004). Adiposity alters muscle strength and size responses to resistance training in healthy men and women. Med Sci Sports Exerc. 36:S352.

©,2013 Jerry Brainum. Any reprinting in any type of media, including electronic and foreign is expressly prohibited.

Have you been ripped off  by supplement makers whose products don’t work as advertised? Want to know the truth about them? Check out Jerry Brainum's book Natural Anabolics, available at


The Applied Ergogenics blog is a collection of articles written and published by Jerry Brainum over the past 20 years. These articles have appeared in Muscle and Fitness, Ironman, and other magazines. Many of the posts on the blog are original articles, having appeared here for the first time. For Jerry’s most recent articles, which are far more in depth than anything that appears on this blog site, please subscribe to his Applied Metabolics Newsletter, at This newsletter, which is more correctly referred to as a monthly e-book, since its average length is 35 to 40 pages, contains the latest findings about nutrition, exercise science, fat-loss, anti-aging, ergogenic aids, food supplements, and other topics. For 33 cents a day you get the benefit of Jerry’s 53 years of writing and intense study of all matters pertaining to fitness,health, bodybuilding, and disease prevention.


See Jerry's book at


Want more evidence-based information on exercise science, nutrition and food supplements, ergogenic aids, and anti-aging research? Check out Applied Metabolics Newsletter at