Archive for the ‘Health’ Category


Exercise protects cells from effects of stress

Researchers form the University of California in San Francisco have reported that exercise helps to prevent, and even reverse, the effects of stress on the cells. They found that stress resulted in shorter telomeres, the protective caps on the ends of chromosomes.  The telomeres are a measure of the age and health of the cells.

They examined telomeres in the white blood cells, of the immune system, which defends the body against both infectious agents and cell damage.

Their findings suggest that traumatic and chronic stressful life events are associated with shortening of telomeres in cells of the immune system, but that physical activity moderates the impact.

Telomeres are tiny units of DNA at the ends of chromosomes that protect the chromosomes. Each time a cell divides, some telomeres come off and after a certain number of cell divisions the telomeres reach a critical length and the cell typically dies.

Scientists have known for over a decade that the length of telomeres in immune system cells is a marker of cell aging. In recent years, they have discovered that shorter telomeres are associated with a broad range of age-related diseases and are predictive of incidence and severity of cardiovascular disease and a variety of cancers.

In their latest research, they studied three different groups of women who were under some type of stress.  In all three groups, an increase in perceived level of stress was related to an increase in the odds of having short telomeres.

However, this was only evident in the non-exercising women. In those who exercised, perceived stress was not related to telomere length.

The researchers concluded that exercise protects the telomeres from the shortening effect of stress, thereby reducing the risk of premature ageing and chronic disease.  Even people who had experienced severe stress as a child seemed to be protected by exercise later in life.

If you have, or have had, stress in your life, get exercising to protect the ends of your chromosomes and live a longer, healthier life.


Simplest body fat assessment I’ve done

A few weeks ago I mentioned the new Bodymetrix ultrasound body fat measuring device that Tim Ferris mentions in THe 4 Hour Body.

Having purchased one of them before they are even released in Australia, I have been very impressed with how simple it is to take measures and how accurate they appear to be.  Not only this but clients get a visual image of their body shape and what it will look like if they were to lose body fat.  Very motivating for some.

The software also estimates Basal Metabolic Rate and Calorie requirements based on measures and activity levels.  Again this is useful information for people trying to optimise performance and/or lose weight.

The Bodymetrix will be officially launched in Australia next month but if you would like to be among the first in Perth to have a Bodymetrix assessment with this new technology please call me on 0419907432 or email me at david@lifelongfitness.info.

I predict this will become the most used method for assessing body fat available due to its simplicity, accuracy and comfort.  No more uncomfortable skinfold pinches!!


Tips to get more from your exercise (part 2)

If you’re giving up time and effort, you want to get the best ROEE (return on effort and energy) possible. Here’s some more tips to get the most from your exercise.

Add a few hills

Hills are a great way to build muscle on your glutes and legs, and to increase your overall metabolism.

A lot of aerobic exercise doesn’t have a lasting effect on your metabolic rate (unlike weight training), but hills are an exception to this rule if you work hard getting up them.

Either set the treadmill to an incline or find a hill somewhere convenient. You can start with fast walking to begin with, but try to include some light running as well.

One big advantage of hill running is that there is less impact on your knees and hips when you land, as you are working against gravity. Don’t get tempted to run back down the hill as this is when the joint damage is most likely to occur. Use the downhill as your recovery time and enjoy the view.

Use aerobic exercise to supplement your strength training

Long slow aerobic exercise is a very inefficient way to try and get fit, but aerobic exercise used in conjunction with strength training can make your workout more intense and produce results.

Instead of resting between sets of exercises, do some running on the spot, skipping, rowing or cycling. You don’t have to go as hard as an interval session, but obviously the faster you go the more benefit.

I recently bought a rowing machine and use it between exercise sets to boost the intensity and return from my workouts.

Focus on what you are doing

Most people use exercise to switch off and let their mind drift. It’s relaxing and not a bad thing. I certainly do that sometimes, especially when I am feeling a bit tired or have a lot going on in my head. The problem with doing this is that our body tends to cruise along at what is a comfortable pace.

If you want to get fitter or maintain your fitness, you can’t do it all the time. Some sessions each week, or parts of sessions, you need to focus on what you are doing and exercise at an intensity that pushes you out of your comfort zone. This is why intervals are good; you get to focus and go fast for short bursts then ease off and let your mind wander.

While it’s okay to drift off mentally when exercising, just don’t do it all the time or when riding a bike or running near traffic!!


New ultrasound body composition measuring device

If you’ve heard about or read Tim Ferris’ new book ‘The Four Hour Body’,  you might know that his Top 3 recommended body fat measuring devices are the DEXA (X-ray absorptiometry), BodPod (air displacement) and BodyMetrix (hand-held ultrasound). He talks in his book about using a Bodymetrix ultrasound device to measure body fat, muscle and metabolic rate, and it being the tool he used (and still uses) most often.

As he points out, weighing yourself doesn’t tell you if you’ve lost fat or muscle and skin fold measures can be very unreliable depending on the assessor.

The new Bodymetrix ultrasound device makes the measure much more reliable. It also allows you to measure both fat and muscle so if you lose weight, you can determine if it was fat you lost or muscle.

Chances are, if you have lost weight by dieting alone, you will have lost muscle, which is not a good thing. Using a device such as the Bodymetrix helps you to track whether you are making real improvements in your health or just losing important lean tissue.

The Bodymetrix software also calculates your calorie needs and health risk based on your BMI, body fat and waist-to-hip ratio.  You can also track your progress over time to see if your strategy is working effectively.

If you’d like a Bodymetrix assessment in Perth, please contact me at david@lifelongfitness.info or 0419907432.  Assessments are only $95.


Are you into Life Hacking?

Life hacking is figuring out ways to make life easier or more effective.

I just received an email from my good friend and mentor Matt Church.  Matt is the founder of Thought Leaders and one of the most influential people I know.

Matt defined life hacking as figuring out ways to make life easier or more effective and I realised that one of my goals in promoting  and educating people about fitness is so that it makes their life easier.

While it might not seem that way when you first start out, and it does take some effort, getting and staying fit does make your life easier.

Everyday tasks are less demanding.

Keeping up with your kids or grandkids doesn’t exhaust you.

Running for a bus doesn’t wear you out for the whole morning.

Lifting the shopping doesn’t strain a muscle.

Walking around Paris doesn’t feel like a marathon.

Whatever you like to do in life, and whatever age you are, dedicating 30-60 minutes a day to being a fit as you can be makes the other 23 hours much easier.

So get fit and get into life hacking.

It maybe not be today, but one day you’ll be so glad you did.


Don’t exercise to lose wieght

One of the most inspiring stories to come out of the Commonwealth games was the amazing comeback of Australian swimmer Geoff Huegill.  For those non-Australians who don’t know the story, Geoff’ retired from competitive swimming in 2004 after the Athens Olympics.   Like many competitive athletes who retire, he stopped training and became a party animal.
Needless to say, his fitness plummeted and he put on weight.  45 kilograms of fat to be precise.
Geoff’s life and health spiralled out of control as his weight ballooned to 138 kilograms.
Fortunately in 2007 he realised he was on a path to self-destruction and decided to do something about it.  He obviously changed his diet but importantly he got active again.
In fact, not only did he start exercising again, he decided to get fit.
And that’s the lesson in Geoff’s amazing story for all of us.
If Geoff had set himself the goal to lose weight he would probably have cut his calories drastically low in an attempt to lose weight fast.  This is what most diets and fast weight loss programs suggest. And it would have worked initially.
He would have lost weight but he wouldn’t have got any fitter and his metabolism would have slowed down.  Not what a fit athlete or a person trying to maintain their weight loss needs.
(I read about a diet in the paper this morning that promised I’d lose 5kg in 7 days or I’d get my money back!)
Most weight loss programs and diets tell people to exercise at a low intensity as this burns more fat.  The reality is, the fitter you are, the more effective and efficient your body is at burning fat.  Not only that, the other metabolic changes that come with being fit help protect you from many of the conditions that accompany obesity.  Just losing some fat doesn’t necessarily make you healthier; it’s the changes that happen in the cells and tissues that improve your health.
By focusing on getting fit, Geoff lost weight and turned his body into an efficient fat-burning engine.  He could do more, felt better and felt better about himself.
I doubt he would have achieved all that if he had just tried to lose weight.  But because he set out to get fit, he not only lost weight, he got the added benefits I mentioned above.
What’s the lesson again?
If you want to lose weight, don’t exercise to lose the weight.
Do an exercise program to get you fitter.  Monitor if your fitness is improving rather than what the scales are saying.  It may take a bit longer to see any changes in your weight (you’ll probably put on some muscle) but in the long term you will be healthier, happier and better able to burn fat.

Note – Numerous studies have shown that it is better to be fit and carry a few extra kilos than unfit and normal weight.

Focus on fitness, not fatness.


Body Fat Percentage is The Right Way to Measure Fitness – Rubbish!

I’ve just read an article on a website for women and girls with the above title and it worries me – a lot.

The idea that body fat is THE measure of fitness is some of the reason why there is an obesity epidemic in the Western world.

The article discusses how the American Army has set certain percentage body fat levels as the measure of fitness that everyone must comply with or get kicked out of the Army.  In some ways this is not a bad thing.  Especially if it helps prevent the gradual increase in body fat that happens to most people as the years go by.

But… the thought that body fat is used as the measure of fitness is just wrong. There are a lot of people in the world who have low body fat levels and aren’t fit.  Take a lot of the stick-thin models on the catwalks who starve themselves to stay ‘skinny’ and never do any strength training for fear they will get “too” big.  They might be thin and look good in certain clothes but they aren’t fit and many aren’t healthy.

On the other extreme there are a lot of people who exercise regularly and are quite fit but carry extra body fat.  Under the US Army system, these people would get kicked out while the thin person who never does any exercise would  not.

Ideally the slightly overweight fit person would drop some body fat  and as a result be even fitter, but all the research tells us that it healthier to be fit and fat than unfit and thin.

The idea that we use body fat as a measure of fitness just perpetuates the diet mentality, and does nothing to help correct the underlying health issues that accompany having too much body fat.  The way to fix those is to get fit, just losing a few kilos of fat isn’t going to help in the long term.

I think the US Army should focus on how fit people are.  That might include body fat levels but to use just body fat as a measure of fitness is flawed and sends the wrong message.

For the rest of us, we should focus on fitness not fatness.  If you get fit, body fat will take care of itself.


Do you feel in control of your life?

Many studies have looked at the risk factors for health, but what about the factors that help promote good health?  We hear constantly about all the things we shouldn’t do but perhaps if we were told what had a positive effect we could focus on that.

Research by Margie E. Lachman Ph.D. and Stefan Agrigoroaei Ph.D. of the Brandeis Psychology Department has examined the psychological factors that lead to better heath.

The Midlife in the U.S. (MIDUS) study, involved 3,626 adults aged 32 to 84 who were assessed over two periods about 10 years apart. What the researchers found was that with proper protective elements in place, declines in health could be delayed by up to a decade. according to the findings, specific psychological, social, and physical protective factors are associated with better health in later life.

The research identified physical exercise, social support and control beliefs as significant predictors of change in functional health.  This was above and beyond the negative effects of the traditional risk factors.

“Control beliefs” refer to a person’s sense of how much they can influence important life outcomes. Those who have a greater sense of control are more likely to engage in health-promoting behaviors, such as getting exercise and eating right. Suppotive social relationships can promote health by reducing stress and encouraging healthy behaviors.

One of the reasons exercise is such a potent influence on health, is that not only does it improve our mental and physical capacity, but it helps us feel in control.

And the more in control we feel, the less our health declines.  It’s a double-whammy in the right direction.


Need some added motivation to exercise?

I’ve said many times that regular exercise is more of a mental challenge than a physical challenge, so anything that helps you stay motivated to get and stay fit is worth thinking about.

So this blog is for those of you who need that extra motivation to start or maintain some regular strength training. Unless you’re a new subscriber to this blog you’ll know I encourage everyone to do some strength exercises at least twice a week.

Here’s some exercises that will help you in everyday life as well as the bedroom.

Pushups

If you’re going to pick just one exercise to do, this is the one to go for. (No surprise really) If you can’t do regular pushups at first, start with wall presses (essentially pushups done against the wall), aiming for 3 sets of 12-15 repetitions. Once you can do that many relatively comfortably, progress to knee pushups on the floor, making sure to keep your back straight while you slowly touch your nose to the ground. Once you’re can do those easily, progress to traditional hand-and-toe pushups.

Abdominals

After pushups, your abs are the next most critical love-boosting body area. After all, you have to use your abdominal muscles while making love.

The key to strong abs is to use a variety of exercises to work the different abdominal muscles. Start your with good old-fashioned crunches. Lie on your back, hands supporting your neck, knees bent and your feet on the floor, then bring your body up just enough to get your shoulders off the ground. Do 3-5 sets of 15-20 repetitions.

Bridges or hip raises are also good. Lie on your back with your knees bent and lift your hips up and down, making sure to lower your hips slowly. Aim for 3 sets of 15 reps.

Men can also try pelvic tilts. Standing up or lying down, straighten your lower back and pull your belly button in until your lower back touches the wall or floor.

Women contract your pelvic muscles (the ones you’d use to stop the flow of urine); squeeze the muscles tight for 3 seconds, then relax for 3 seconds. Do 10-15 repetitions, three times a day. The good thing about these two exercises is you can do them any time of the day, without people even noticing.

Deadlifts

These keep your back strong. To do deadlifts, you raise a weighted barbell or dumbbells from the ground to about thigh level, starting in a bent-over position, Imagine picking up a bucket of water and putting it on a step in front of you. It is important to keep your back in its natural position by not letting it curve forward too much.

An alternative to deadlifts if you haven’t got any weights (or a bucket) is Superman exercises. Lie on your stomach with your hands out in front. Imagine you are Superman flying through the air and lift your legs and arms off the floor. Hold for a few seconds then relax. Aim for 3 sets of 15.

Added Bonuses

  1. Exercise may help beat erectile dysfunction, too. One study showed that in men over 50 years of age, physically active men had a 30% lower risk of erectile dysfunction than sedentary men. Studies also show a strong link between obesity and ED.
  2. People who exercise often have a better body image than sedentary people, which can help them feel more appealing. One study found that 80% of men and 60% of females who exercised two to three times a week felt their desirability was above average.
  3. Have a love life like you’re 20 years younger. A study showed swimmers in their 60s have love lives comparable to people in their 40s. Other research found that in men and women over 55, high levels of ‘intimacy’ were associated with higher degrees of fitness than in younger sedentary people.

If you think you got bad genes, get moving.

Too many people blame their parents or grandparents for the fact that they struggle with their weight.  While there is certainly some truth in the fact that genetics plays a part, research has shown that staying active can attenuate the influence of your genes.

A  large population study followed middle-aged adult participants from the European Prospective Investigation of Cancer (EPIC)-Norfolk cohort. In total, 11,936 were followed for between 3 – 7 years and had their BMI assessed. Physical activity was measured using a validated self administered questionnaire.

In this study, the researchers calculated a genetic predisposition to obesity score (by adding up the BMI increasing alleles on the chromosomes).  Researchers used cross sectional and longitudinal analysis to look at the interactions between the genetic predisposition score, physical activity and BMI.

The results from this study showed that each additional BMI-increasing allele was associated with an increase in BMI equivalent to 445g of body weight for a person 1.70m tall, and that the size of this effect was greater in inactive people than active people. Also, each additional obesity susceptibility allele increased the risk of obesity by 1.116-fold, but for physically active people this risk was 40% lower.

This study indicates that people with a “genetic predisposition to obesity” can lower their risk of obesity by 40% if they are physically active.

While physical activity is associated with a lower BMI in the overall population, the study indicates that those with a genetic predisposition to obesity benefit more from increased physical activity than those who are genetically at lower risk.

So if you think you inherited genes that make it easier for you to put on weight, don’t just sit there blaming your parents.  Get moving.


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