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I love this new 'high intensity' strength training fad. Sure, you'll build muscle, but I don't believe for a second you would be getting a beneficial cardiovascular exercise. You'll just inflame your blood vessels by skipping warm-ups and cool-downs, leading to an inevitable heart attack.

It's too bad you are physically nearsighted, nemaroller. This is actually the best way to PREVENT a heart attack. This wouldn't deliver a typical "cardio" workout, where most people aren't at an intensity level high enough to produce any benefit at all. Most people will toil with frequent, low-intensity workouts that lead to fatigue or injury, and never reap the real benefits of high-intensity training like the one mentioned in this article. I am interested in checking it out!

nemaroller Before you speak, you should really do some research. This is not a "fad". Since you are apparently the all knowing workout expert of Star Tribune commenter people, I am surprised you didn't know that a high intensity strength workout also increases your heart rate, not to mention the increased metabolism these workouts provide during rest times. For you to suppose that a high intensity workout could lead to a heart attack is baseless and frankly, stupid. To say it to the 12 people that will actually read your comment is just wrong. Anyway, I'll be more than happy to get back to work and life after an hour or so of hard work every week while you waste your time and money waiting for the stair climbers at Lifetime to free up on a Wednesday night, all while I'm getting in better shape than you could ever hope to be.

DiscoverStrength advocates both resistance training and strength training. One of the few gyms that isn't part of a fad. These people know their stuff.

I meant cardio and resistance.

Nemaroller - you can absolutely improve aerobic power and cardio health with HIT weight training. There is quite a lot of research to support this. SuperSlow or Hypertrophy Resistance Training: do they affect skeletal muscle mass and strength differently? Foditsch E.E.1, A. Obermayer 1, P. Steinbacher 1, W. Stoiber1, J.R. Haslett1, S. Ring-Dimitriou2 and A.M. Sänger1 1Department of Organismic Biology, Vascular and Muscle Research, University of Salzburg, Austria 2Department of Sport Science and Kinesiology, University of Salzburg, Austria In conclusion the SuperSlow mode appears to be more effective than the common hypertrophy resistance mode in i) replacing connective and adipose tissue by muscle tissue ii) maintaining muscular strength (myofibrillar content slightly increased in type IID fibres, moderate decline in type I fibres) iii) increasing the aerobic capacity in both the type I and type IID fibres (subsarcolemmal mitochondria increased in both fibre types) iv) positively affecting the lipid metabolism (even and slight increase of lipid in type I and type IID muscle fibres, respectively). The SuperSlow method of resistance training appears to be an effective approach for the everyday use being a save exercise intervention to increase aerobic capacity without suffering the loss of muscle strength thus reducing the risks of falls and injury and significantly contributing to a better quality of life in older age.