Haus
<Silver Donator>
I -really- wish exercise had a larger impact on weightloss. It's a super healthy habit that will only improve your health and enhance weight loss results, but on the pure "loss vs. effort" scale it's very little loss for a -lot- of effort. It totally helps, as burning that extra 1600+ calories a week (totally depending on activity level) is almost half a lb before diet even comes into consideration, so it's always good. It's just the people thinking that doing light-moderate exercise/activity over the week is going to double/triple the lbs they drop and then realizing that it's roughly 10-15% of their total loss on average can be a bit disheartening. The other benefits besides pure weight dropped are the incentive, and it does increase the speed at which you lose for sure. But getting a handle on actual intake and needs and fine tuning the specifics is waaaaay more important for pure weight loss.
Good on ya Haus. I would personally recommend maybe looking into eating veggies occasionally instead of a diet of meats, fats, and empty carbs. But if it is working it is working, just keep following doc's advice regarding the heart stuff.
On the topic of working out and weightloss. As explained to me by a few trainers I know, and it seems I am becoming an example of, working out does primarily three things :
A) Improve cardiovascular health, which allows you to be more active.
B) Build lean muscle mass
C) Burn some calories.
The real weight loss benefit of working out though, isn't point C. You really don't burn such a huge number of calories that it's going to seriously impact your weight loss. In one of those hour long HIIT workouts I do, which thoroughly kick my ass still, I burn MAYBE 750-800 calories. With the generally accepted math of 3500 calories == around a pound of weight that means I'd have to be working out 5 days a week to get a pound from just working out.
The benefit comes from A and B. Specifically how they affect your body's passive caloric burn rate. This is how many calories you burn just existing. Muscle takes calories to keep alive, fat really doesn't. As you add lean muscle (point B) it increases this amount you need per day to stay alive, which also means burning calories passively to lose weight. Say I added enough muscle mass to increase my passive daily caloric burn (which Google fit seems to indicate for me is around 1900 calories a day) by 10%. That's over 1300 calories a week more you're dropping. That's 1/3 of the pound of weight you want to lose per week.
The Cardiovascular aspect of it has to do with increasing your body's oxygen consumption/use rate. There was a study done at Baylor that showed that for 24-48 hours after doing HIIT training (hitting 90% of max heart rate or more for at least 1/4 of their workout) people burned more calories than people doing traditional moderate heart rate workouts (around 60-70% max heart rate). So if you amp up your metabolism for 48 hours after a HIIT workout for another few hundred calories burned that adds on to the muscle mass factor.
Of course I will add the obligatory YMMV here, I know this has worked for me, maybe it will help others. Although if I had to give any advice it would be what my doctor said to get me started :
Haus's Dr said:Start off small with what you can make part of your regular routine, then over time as one better habit becomes your norm add another..