Isolated Aerobic Exercise Is Not an Effective Weight Loss Therapy

So says a new meta-analysis of cardio and weight-loss studies.

Their conclusion:

Moderate-intensity aerobic exercise programs of 6-12 months induce a modest reduction in weight and waist circumference in overweight and obese populations. Our results show that isolated aerobic exercise is not an effective weight loss therapy in these patients. Isolated aerobic exercise provides modest benefits to blood pressure and lipid levels and may still be an effective weight loss therapy in conjunction with diets.

Bottom line: Diet is the #1 factor in losing weight. “Cardio” can help drive the caloric deficits, but if you’re going for the most bang for your buck, Strength Training is the best way to go. It is, in and of itself, a metabolic driver of – among other things – fat loss.

If you’re in Chicago and want to learn more about why and how Strength Training is a life-changer, drop me a line.

Isolated Aerobic Exercise Is Not an Effective Weight Loss Therapy

So says a new meta-analysis of cardio and weight-loss studies.

 

Their conclusion:

Moderate-intensity aerobic exercise programs of 6-12 months induce a modest reduction in weight and waist circumference in overweight and obese populations. Our results show that isolated aerobic exercise is not an effective weight loss therapy in these patients. Isolated aerobic exercise provides modest benefits to blood pressure and lipid levels and may still be an effective weight loss therapy in conjunction with diets.

Bottom line: Diet is the #1 factor in losing weight. “Cardio” can help drive the caloric deficits, but if you’re going for the most bang for your buck, Strength Training is the best way to go. It is, in and of itself, a metabolic driver of – among other things – fat loss.

 

If you’re in Chicago and want to learn more about why and how Strength Training is a life-changer, drop me a line.

“How to Win An Argument With a Vegetarian”

By Denise Minger @ the Ancestral Health Symposium

In case you don’t know, Denise was among the first few individuals to really, really dig through T. Colin Campbell’s China Study* (as a stats-loving, ex-vegan/vegetarian no less!). What she found was a story that cherry-picked data and asserted correlative data as causative. If you’d like, head on over to her site and read her abbreviated (or unabridged) critique of the China Study.

This is sure to piss some folks off. Enjoy!

*Please, take anything from the China Study’s Wikipedia page with a grain of salt.

Eat Fat to Get Lean

From the New York Times’ Phys Ed:

“Eating Fat, Staying Lean”

Researchers at Johns Hopkins put 46 “healthy-but-overweight” men and women on either a high-fat (but high-veggie) or high-carbohydrate diet. For the high-fat group it took an average of 45 days to lose 10lbs, versus the high-carbohydrate participants average of 75 days with similar caloric deficits (~750) and training routines.

“There was no evidence of any harmful vascular effects from the low-carb diet,” Dr. Stewart said.

Confirmation bias much? You bet. Check the Resources page for more info on how (healthy) high-fat doesn’t necessarily carry with it all (any?) of the oft-repeated health risks we’ve been led to believe.

Sugar Mega-blog

I’ve been planning a blog on damn near every one of these for some time, but every time I’m about to post one of them another pops up. And each helps paint the picture of – in my opinion – one of the major problems with our foods, diets, lifestyles.

The underlying theme is this: Too Much.

There’s too much processed junk (and too much that we don’t realize is junk). Too much (read: any) vegetable oil. Too many preservatives. Too many calories.

And too much sugar.

So I’ll urge you to have a thorough look through all of this info. I’m going to stick this particular blog over in the resources section as well, because it’s going to grow as our understanding of just how detrimental too much sugar is, and how beneficial it can be in the right amounts (and at the right times).

Sugar: The Bitter Truth

A long but educational/interesting talk by Dr. Robert Lustig. He doesn’t seem like a very nice guy, and he may turn you off. But he’s smart. An alarmist, but smart.


Authors @Google: Gary Taubes


Gary Taubes: What Makes Us Fat and Why Nobody Seems to Care:

Webcast from UC Berkeley 

More Video of Gary Taubes:



What if It’s All Been a Big Fat Lie
Calories, Fat, or Carbohydrates? Why Diets Work (When They Do)
Is Sugar Toxic?
(Gary responds to readers’ comments here)
How Sugar Affects the Body in Motion (Not Gary Taubes)
A Diet Manifesto: Drop the Apple and Walk Away (Although I’m not sure it’s what we need, this is a much more balanced look at how to deal with what’s going on…)
Reversing Diabetes is Possible

Scared of insulin sensitivity yet? Well, there’s good news:

It is concluded that physical training can be considered to play an important, if not essential role in the treatment and prevention of insulin insensitivity.”

So if you’re worried, contact and come see me.

There. That’s all for now. Happy reading. I’ll post updates as needed, and will publicize the hell out them.

The Pros and Cons of Fasting

This article from the Los Angeles Times speaks for itself, but I’ll give you a hint: Even with relatively few (and preliminary) studies, the pros far outweigh the cons.

Authors @Google: Gary Taubes

Have a spare hour to listen to Mr. Taubes talk insulin and sugar? If not, you should make it.



I won’t get a chance to watch this until this weekend, but I’ll update/repost this then with some thoughts.

Healthy Eating Programs Work

Or, that’s the finding of the Journal of Epidemiology and Community Health. A recent study revealed that students in schools that promoted healthy eating:

  • Were 2X as likely to eat fruit with lunch
  • Were 1.5X as likely to eat fruits or vegetables on a daily basis
  • 1/2 as likely to eat sweets with lunch.
Even more evidence that folks like Michelle Obama and Jaime Oliver are on the right track. Thanks to Health Habits blog for the heads up.

“Baby We Were Born To Run”

This story has been making the rounds, mostly because it’s pretty fascinating.

Biomechanical research reveals a surprising key to the survival of our species: Humans are built to outrun nearly every other animal on the planet over long distances.

Late one night over beers in the Welsh hamlet of Llanwrtyd Wells, an innkeeper got into an argument with a foxhunter about who could run faster, man or horse. The innkeeper insisted that over many miles, a human runner would have greater stamina, and prevail. Thus was born a tradition: Every year since 1980, Llanwrtyd Wells has hosted the Man Versus Horse Marathon, which pits hundreds of runners against dozens of horses with riders. On two legs or four, contestants take on 22 miles of challenging trails laced across a dazzling green countryside. They trot through fragrant pine forests, scramble up mountainous rock-strewn sheep trails, cross rolling moorlands, and ford rivers. In June 2004, for the first time ever, the human won.

My question: What kind of shoes was the runner wearing?

How Necessary is Stretching?

Stretching is an issue that comes up often. Clients ask why I don’t incorporate much stretching into their routines, and others question (sometimes interrogate) about whether or not I stretch. It’s always a difficult conversation to have because unless you define terms from the get-go you’re doomed to pedantic bickering.

Whenever it comes up, I always try to respond with this: “What is stretching… to you?”

There’s plenty of evidence that shows that pre-workout stretching might actually be a problem. Here’s a decent (if ugly) article on the subject. Note the “Why Doesn’t Stretching Help?” section, as well as the “What is the Best Warm-up and Stretch?” sections. (The latter to illustrate my “What is stretching… to you?” question).

The New York Times recently published an article (same title as this post) on Stretching and how much of it we really need. The TL;DR of the article can be boiled down thusly:

  • In a study done by Nebraska Wesleyan, researchers actually found that the runners with the tightest hamstrings had the highest running economy – “Inflexibility, in other words, seems to make running easier.”
  • “The latest science suggests that extremely loose muscles and tendons are generally unnecessary (unless you aspire to join a gymnastics squad), may be undesirable and are, for the most part, unachievable, anyway. “
  • Much of the perceived adaptation of stretching is in our minds: “Your brain will allow you to hold the stretch longer. But the muscles and tendons themselves will not have changed much.”
  • “You only need enough range of motion in your joints to avoid injury. More is not necessarily better.”
When clients, friends, and other interested parties ask me how I stretch, I regularly find them surprised to hear me say that I don’t stretch. Among others reasons, here’s why. I realize that I’m an active, healthy (of body, at least) adult and I’m lucky enough to not sit at a desk for hours at a time, so 99% of the time when I feel “tight” I take that as a sign that something in my body isn’t ready to move through a full range of motion. There may be many reasons for this, but with my lifestyle it’s usually either yesterday’s workout or, maybe, some level of dehydration. The most I’ll do pre-workout is some ROM “work”, which to some folks might look like stretching, but I prefer to call it “preperation.” I will almost never actively force a muscle or joint through a ROM it would not regularly be able to do. I’ll admit that after long droughts of not running, I’m tempted to do a sit-and-reach style hamstring stretch, but over time I (think, at least) that any relief is merely perceived, and any tightness is really just my body emphatically saying “Stop!” And when it stops screaming at me, it’s ready to go (again).

So unless you’ve sustained some acute injury in the past (a serious sprain, strain, or tear), the gist of this post is: Don’t worry about too much about stretching. If you’re tight, start slowly and you’ll probably feel more limber in minutes. And if you sit at a desk all day, take every opportunity to move. Take the stairs, do some prisoner squats every hour (just a few, ass-to-grass if your office attire allows), and reach up high to the sky to keep those shoulders healthy and mobile. Without diminishing the unquestionable power of our mind to wield its perceived influence on us, I think it’s safe to say that unless you’re a proper “athlete”, no performance will be lost. In fact, it may be improved.

Note: As I write this, I realize there’s quite a bit more on the subject I could say. I get the feeling that I’ll be addressing stretching quite often, but I’m going to keep this particular post short and sweet.