Comment Re: Completely believable! (Score 3, Informative) 98
I'm aware of the studies. I've read and applied Beyond Brawn by Stuart McRobert, just about half the books by Ellington Darden, the Nautilus Bulletins by Arthur Jones, Heavy Duty 2 by Mike Mentzer, every article at Cyberpump (back when all of the site content was free), Power Factor Training by John Little and Pete Sisco, articles by Doug McGuff and Drew Baye, and even the Power of 10 by Adam Zickerman and Super Slow: The Ultimate Exercise Protocol by Ken Hutchins. I've also read the fitness research paper published in the June 2004 edition of the Journal of Exercise Physiology online. I've worked out as often as every other day to as infrequently as once every three weeks. I've done routines with full body single set circuits at each workout. I've also done routines with different muscle group splits. I've trained to concentric failure, to static failure, and even occasionally to eccentric failure. All that from 1996 to 2014 and in all cases the gains stopped after the first few weeks and plateaued for months until I quit and started over.
The only thing great about HIT is that it's easier on the joints. When I do higher volume work I tend to develop joint pain, and of course in the long run it's better to have barely-better-than-untrained muscles and healthy joints than strong muscles and damaged joints.
Strength training studies are problematic. A trainee can hold back at the initial strength test, thus giving false gains at the end of the study. The trainees can do additional workouts outside of the supervision of the study supervisors. Study participants can be using steroids. Perhaps worst of all, regaining muscle mass you formerly possessed tends to be much faster than gaining new muscle mass. ( There are several studies that document this. One such link: http://www.thinkmuscle.com/art... ) Most workout studies don't control for the influence of this factor on outcomes or try to control for it but only rely upon word-of-mouth of the study participants, which is unreliable. So if you conduct a strength study and your random assignment of subjects puts five people that each used to have twenty more pounds of muscle mass in one group, they're going to make much greater gains in a shorter time than other subjects in the same group, and skew your results. If you're familiar with Arthur Jones' "Colorado Experiment", the two research subjects had both gained and then lost over thirty pounds of muscle in the years before the experiment. So the fact that they made massive gains on HIT doesn't mean anything for trainees that had never previously had thirty additional pounds of muscle.
The only thing great about HIT is that it's easier on the joints. When I do higher volume work I tend to develop joint pain, and of course in the long run it's better to have barely-better-than-untrained muscles and healthy joints than strong muscles and damaged joints.
Strength training studies are problematic. A trainee can hold back at the initial strength test, thus giving false gains at the end of the study. The trainees can do additional workouts outside of the supervision of the study supervisors. Study participants can be using steroids. Perhaps worst of all, regaining muscle mass you formerly possessed tends to be much faster than gaining new muscle mass. ( There are several studies that document this. One such link: http://www.thinkmuscle.com/art... ) Most workout studies don't control for the influence of this factor on outcomes or try to control for it but only rely upon word-of-mouth of the study participants, which is unreliable. So if you conduct a strength study and your random assignment of subjects puts five people that each used to have twenty more pounds of muscle mass in one group, they're going to make much greater gains in a shorter time than other subjects in the same group, and skew your results. If you're familiar with Arthur Jones' "Colorado Experiment", the two research subjects had both gained and then lost over thirty pounds of muscle in the years before the experiment. So the fact that they made massive gains on HIT doesn't mean anything for trainees that had never previously had thirty additional pounds of muscle.