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Originally Posted by mrfreddy
I'm not sure that anyone is making that claim.
I'm no expert in the science department, and I can't speak for Fred, Gary, et. al, but I am pretty sure their position is that you need exercise -preferably HIT style-to fully train all of your muscle fibers, and you need to look to your diet to decrease body fat, and to help build lean tissue. Exercise for strength, diet for weight loss and body composition (ie, get enough protein to recover from your workouts and maintain/build lean tissue). Both combined addresses all the risk factors you need to worry about.
The beauty of slow burn is that it works both the type I fibers-the ones you work when you do loads of steady state cardio, and type II fibers-the ones that get worked when you lift very heavy loads. And it covers it all in 20 - 30 minutes, once or twice a week (I prefer 2x per week.)
Re: HIIT, it seems to me that that's just another way to provide very intense work loads to your type II muscle fibers. If you're doing slow burn or any similar HIT style training, you've got that covered already, without the pounding on your joints, and without a Jamie Hale style maniac shouting at you.
And yes, it does work for me. Works for pretty much anyone who gives in an honest effort.
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Any speed of exercise will work both type I and type II fibers depending on the volume/intensity.
Anything will work for a few weeks whether you lift weights slowly or quickly. This notion that moving a weight deliberately slowly is vastly superior in perpetuity is ludicrous. Periodization is the key to continued success. If you haven't lifted weights before - you will improve drastically no matter how slow or fast you move the weight. If yoiu you've been moving a weight quickly, you will likely see some good results by switching to a slower protocol for a while.
There are many reasons to move a weight quickly - particularly on the concentric phase.
From Chad Waterbury
Explosive concentric muscle contractions may be more effective than slow contractions for enhancing energy-expenditure responses for weight loss when using resistance exercise.
In a study between a faster tempo and slower tempo lift:
The slow contraction group produced significantly higher levels of lactate, yet the total energy expenditure (during the workout and at 5, 10, and 15 minutes post-workout) was significantly greater for the explosive group. The total oxidative energy expenditure and anaerobic energy expenditure were also significantly greater for the explosive group.
This research demonstrates that explosive lifts are better for fat burning even though lower levels of lactate were produced. That's some exciting research!
The take-home point is that, not only are explosive lifts good for building strength and muscle, but you'll also burn more fat than slower lifting.
you'll recruit more motor units with each repetition. You'll be less likely to convert your intermediate (type IIa) fibers into the puny, type I endurance fibers. Third, you'll build more strength endurance instead of endurance strength.
To use only slow tempo training is to limit your potential. Give me 6 weeks and I can help improve your strength, endurance, power, body composition, mobility and function. That challenge goes out to anyone currently doing a slow burn, machine-based protocol.
Lifting explosively requires the recruitment of many additional muscles to stabilize your body. This builds total body stability