Yes, I know I’m a bit of a broken record when it comes to the concept of interval training.  You hear about the benefits of interval training from me over, and over and over again!

A national news report came out several days ago that essentially said a recent study has found that women who wish to maintain their weight as they age have to exercise at least an hour a day .  Those wishing to lose weight have to do more. Well, gee whiz——that’s encouraging (NOT!).

Okay, so I’m going to rant a little here.   I’m a former researcher.  I’ve designed, coordinated and executed human research studies.  Granted, I worked for NASA, and my studies were based around the space program and advanced life support systems, but my point is this:  One research study doesn’t tell the whole story  AND, you really have to look at the research design and the number of test subjects to get a good feel for what the results indicate, and how they can be extrapolated to the general public.

I’m going to pick on just one little thing with the research design to make my point here, and I’ll be done with my rant.

The women in the study that was quoted in the national news exercised at a moderate pace.  Well, there ya go.

If you want to lose weight, but you choose to  walk on a treadmill at 3.0 miles an  hour (this would most likely be a “moderate”, not too taxing workout for most readers of this blog), then, yes, you’ll need to walk for an hour or so to get a significant dent in your calorie burning for the day.  Same thing for a gentle workout on the stair climber, the elliptical trainer, or walking your dog. The “dent” in calorie utilization you’re making just isn’t that great.  I’m all for any exercise, and there are fabulous benefits to longer, more moderate exercise sessions.  However, if weight loss is your goal— long, moderately paced cardio workouts just aren’t the best method.

Now, I realize that higher intensity training isn’t for everyone, and I’m not advocating that every single workout be a “beat me, whip me” workout!  However, more than one research study has found that interval training lends better fat loss results than shorter, more moderate level workouts.

Here’s why:

-Shorter bursts of high intensity exercise allow you to work out harder (therefore burning more calories) due to the short time frame.

-High intensity interval training has been shown to create a significant post-exercise oxygen consumption. Read:   Your metabolic rate is elevated for several hours after your workout is over (not so with moderately paced workouts).

-Interval training trains your body to utilize fat for fuel more readily.

-Research indicates that interval training elicits hormonal shifts that favor fat utilization during exercise recovery.

-And my personal favorite:  You can (and should) do high intensity interval training for LESS time.

We’re all busy!   I vote for higher intensity and less time

So, please don’t get all in a tizzy about that news report that came out a few days ago.

If you eat a healthy diet that isn’t over-the-top in calories, you should be able to maintain your weight on LESS than 1 hour a day of exercise IF you incorporate some higher intensity workouts into your week.  It’s simply a matter of WHAT you choose to do in the time that you have.

Don’t believe me?  Here are some studies that prove my point:

Gray, AB et al (1993) Endocrine response to intense interval exercise.  European Journal of Applied Physiology/Occupational Physiology 66:366-371.

Haram, PM et al (2008). Aerobic interval training vs. continuous m oderate exercise in the metabolic syndrome of rates artificially selected for low aerobic capacity.  Cardiovascular Research 81:  723-732.

Tabata, I et al (1995).  Metabolic profile of high-intensity intermittent exercises.  Medicine and Science in Sports and Exercise 29(3):390-395.

Tremblay A., et al (1994).  Impact of exercise intensity on body fatness and skeletal muscle.  Metabolism 43:814-818.

Committed to your success,

Becky

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Some women tell me that it gets harder for them to shed unwanted weight as they get older. There’s no doubt that pre- and post-menopausal hormonal changes can put a wrench in a woman’s weight loss efforts. However, getting older isn’t a good reason to allow ourselves to get fatter. I believe that many women over 40 struggle to lose weight because we’re approaching it all wrong. Sometimes we just need to “tweak” the program a bit.

Many of us “boomer” women have lived through some amazingly horrid diets and preposterous exercise programs over the years. Remember the ladies “spas” back in the 1970’s that had machines with belts that were supposed to jiggle the fat off of our rears? Remember the grapefruit diet? If only they had worked………

But I digress. My point today is we boomer women have been brought up with a lot of misinformation about proper nutrition and exercise for weight loss. Even today, I hear my personal training clients and boot camp participants say that their doctors are recommending they add several hours of moderate cardio to their week in order to lose weight. That’s a huge time commitment. Now, I don’t think there is anything inherently bad with long, moderate cardio workouts, per se. But boomer women need to understand one major flaw in the “do tons of cardio to lose weight” mantra. Cardio does indeed use calories while you exercise. And then you’re done. Muscle, however, uses calories while you exercise AND all day long. Muscle is your metabolism.

Women of a certain age should do strength training exercises to lose weight! Did I just say that?? Yep. I did. Many women cringe when they hear me say this, as they believe they will “bulk up”. They cringe again when I show them how to do a proper squat (”won’t squats make my butt bigger??”). No, they won’t. They will make your butt stronger, and they will help you burn more calories all day long, when combined with other full body strength training exercises.

Should you ditch cardio workouts? Absolutely not. Cardio workouts should be part of a well rounded exercise program. I prefer short cardio interval workouts over long, steady-state cardio workouts, though. I’ll share some tips on cardio interval workouts in my next post. For now, hit the free weight section of your gym and pump some iron to keep the post menopausal body fat from creeping onto your body!

Need some help getting started?? Look up in the right hand corner of this page–there’s a workout there for you. Just fill in your first name and your primary e-mail address and I’ll send you a quick upper body workout you can do at home or at the gym!

Becky

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