Ironman4U saidYea, look at chucky above and look at me...take your pick over which lean look you want.
Here's 12 minutes of HIIT a day, for 24 weeks.
See who gets leaner, without the impact injury, without countless hours, without losing a bunch of muscle? 5'5", 195#...and 4% fat.
HIIT wins HANDS down.
Some folks train smart. Some folks train hard. The experts study the science, apply it, and have the results to show for it.
Just FYI, on the science side. I routinely held my heart rate at 190 for 20 minutes, or 12 minutes, doing the HIIT (I do intervals, so it takes a while to get through them.)
I had a sonigram and an EKG done on my heart. Like Lance Armstrong, I have AHS (athletic heart syndrome. I don't have Lances' heart, of course.) I do, have a stronger heart, with larger stroke volumes than someone without my cardiac threshold from doing the HIIT. I'm quoted at 0 risk of a cardiac event, although, clearly, there's some risk, no matter who the individual.
At 50, my target heart rate is at ( .65 is (220 - 50) * .65 or only 130BPH. I routine, even being 220 right this minute, bring my heart rate to 150 for extended periods of time.
I LIKE doing cardio, but, right now, we're in a slow period; money is tight; so I've slowed down. If I compete Fall 2011, I'll be 176 at about 4% fat. We'll see. I'm 217 today, and a bunch fatter, but, that's where my set point is at the moment.
Although I'm 50, and extremely mesomorphic for my height, my cholesterol never get above 150.
Because I've been doing it for 35 years, I've had a chance to watch numbers as I go along, and debunk myth versus science, both in myself, and my peers.