EXACTLY. Telling an obese person about an elite athlete's exercise routine, or smashing them with HIIT straight up, is counterproductive. Baby steps!True. Not sure why the exact numbers matter anyway on a practical level. The likelihood is that obese people need to clean up both their exercising and eating habits. Giving people numbers of what matters more could just give them a reason to skimp out on one thing or the other. There are already examples in this thread of people "rewarding" exercise with donuts.
Physiologically true yes (although HIIT "building muscle" is a little ambiguous) but I think prescribing HIIT to the obese with little exercise experience is fraught with danger. Odds are these people haven't properly run in a long time and asking them to sprint could quite easily lead to injury, which can then lead back to not exercising due to said injury = back into old habits. Also, one of the most important things (I'd say the most important) is to create good habits for these people (healthy diet + regular exercise). The question is, how long can a sedentary individual keep up HIIT 5 days a week (or 3 or 4)? I'm going to guess, not too long. We as a society are obsessed with doing things quickly rather than taking the slow approach. The reality is though that healthy habits need to be for life. The 30-60 min walk/jog is a fantastic introduction to exercise as it's relatively easy and allows people to get into the habit of regular exercise. My worry for HIIT is the toll that it can take on the under-trained.
At the end of the day, the best exercise for weight loss is exercise that someone will actually do, different strokes for different folks.






