020118 Boosting your insulin response with increased lean muscle mass

020118 Boosting your insulin response with increased lean muscle mass

A brief snapshot of Insulin resistance and why it is important to avoid.

This condition causes the body’s muscles, fat and liver cells to improperly respond to insulin. The pancreas makes the hormone, insulin. This hormone helps the cells take in and use glucose which in turn is a fuel used by the body to function. If there is not enough circulating insulin, excess glucose builds up in the bloodstream and increases the potential for developing diabetes. It is in everyone’s best interest to have as much lean muscle mass as possible to possibly avoid this serious medical condition, especially as you get older.

One of the unwelcome conditions of aging is muscular frailty, also known as sarcopenia[1]. Without strong muscles, coordination and balance problems begin to appear. These problems may be held at bay by greater lean muscle mass. A new study reports that increasing skeletal muscle mass by as little as 10%, is also associated with an 11% reduction in the body’s resistance to insulin and a 12% lower risk of developing transitional, prediabetes or diabetes.

Researchers from the University of California Los Angeles look at the data and 13,644 participants in the National Health and Nutrition Examination Survey (NHANES). Since these people were involved in the study between years of 1988 to 1994, the research is somewhat old. However when the muscle mass of one quarter of the participants was compared between those with the most muscle mass and those at the bottom with the least muscle mass, those with the greatest amount of fat three muscle mass were 63% less liable to get diabetes.

After making adjustments to leave out those with diabetes, the connection between muscle mass and improved insulin resistance became even stronger. According to the study[2], “increases in muscle mass above even average levels were associated with additional protection against insulin resistance and prediabetes.”

Not only is increasing your lean muscle mass important, but also losing weight helps to improve your metabolic health. Most of us already know that the fitter you are, the healthier you are probably going to be.

[1] Sarcopenia is the loss of muscle mass and coordination that results from the process of aging.

[2] Preethi Srikanthan, MD of the University of California Los Angeles, USA

051217 Breakfast Power by Glenn Cardwell, part 2

051217 Breakfast Power by Glenn Cardwell, part 2

Breakfast
Not long ago I was asked to review the science on the benefits of breakfast for a cereal company. Although it is a common truism that “breakfast is good for you” I wanted to know if it remains good advice. So I plunged into 30+ research papers to see what was agreed about the first meal of the day. Here is what I learned.

A large Australian study from last year showed that breakfast was critical for school performance, boosting both literacy and numeracy skills, independent of the socio-economic group. This backed up a review of the previous 50 years of studies in school children. There is no doubt that breakfast is necessary to help you to learn new stuff. Usually not difficult with primary school kids because they wake up hungry. It is the upper high school kids we need to convince.

Breakfast habits changing
Twenty years ago just about every young kid ate breakfast, with only some older teenagers giving it a miss, rising to 15% of 19-24 year olds being breakfast skippers. Now we have nearly 1 in 4 of upper high school students missing breakfast, in Australia at least.

Two decades ago, over three quarters of adults ate breakfast. Now barely 6 out of 10 adults regularly eat breakfast, women being better than the menfolk. Why the decline? The most common excuse is “not enough time”, in other words not enough time to pour out cereal into a bowl, add milk and consume (Gee, that’s gotta take 6 whole minutes) or plonk two slices of bread into the toaster, shave/brush hair/pack lunch while you wait, then add peanut butter. Let’s see, that’s 7.5 minutes.

But then my concept of time and food differs to most people, a fact I accept and have resigned myself to, especially since the day I saw a line of cars outside the drive-thru section of a famous takeaway at 8 am on a school day.

What if you don’t fancy breakfast?
Don’t know how you can do it, frankly. Me? I can’t do without breakfast. No breakfast and I can’t do up shirt buttons, I squeeze Heel Balm onto my toothbrush and drive into oncoming traffic. I have a court order to eat breakfast by 7.30 am or face serving jail time.

You, of course, may be able to get away with it. Can I suggest that you at least have a banana, a yogurt or one of those breakfast drinks as you leave the house? With some glucose racing through your arteries you will make better decisions. Then, when you do feel hungry, eat smart, like choose a sandwich, fruit or a smoothie and not scarf some eye-level, salty, extruded snack from the vending machine. Just the term “extruded snack” should put you off.

What does it all mean?
It means what it has always meaned. Clever people eat breakfast and breakfast eating makes you clever. The evidence is pretty over-whelming.

There are plenty of choices to kick-start the day – breakfast cereals or muesli with milk, topped with nuts or a banana (my choice), wholegrain toast with peanut butter, poached eggs and mushrooms on toast, yogurt and canned fruit and you can think of more. If you buy your breakfast look beyond the cappuccino and croissant because you are worth a lot more than that. A lot more.

Selected references:

  • O’Dea JA, Mugridge AC. Nutritional quality of breakfast and physical activity independently predict the literacy and numeracy scores of children after adjusting for socioeconomic status. Health Education Research 2012; 27 (6): 975-985
    • Hoyland A, Dye L, Lawton CL. A systematic review of the effect of breakfast on the cognitive performance of children and adolescents. Nutrition Research Reviews 2009; 22: 220-243
    • Astbury NM, Taylor MA, Macdonald IA. Breakfast consumption affects appetite, energy intake, and the metabolic and endocrine responses to foods consumed later in the day in male habitual breakfast eaters. The Journal of Nutrition 2011; 141: 1381-1389

241017 Are you contemplating losing weight or does your spouse just call you Chunky? 2/3

241017 Are you contemplating losing weight or does your spouse just call you Chunky? 2/3 

The problem

Nearly every newspaper or magazine on the stands has an article about the obesity problem in today’s modern society. In case you are not aware of the dangers of being overweight here are just a few of the conditions that can have a major impact on your quality of life and on your lifespan. Obesity increases your chance of developing heart disease, hypertension, type two diabetes, cancer, arthritis, asthma, and sleep disorders.

The why

Recent research has found that stress actually changes your nervous and hormonal systems around so they encourage fat accumulation around the waist. This type of fat is dangerous and can lead to an increase in your chances of developing hypertension, heart disease and diabetes.

The October issue of Obesity Research featured a report by Swedish scientists, which found changes occurred in the hypothalamic-pituitary-adrenal connections.  This intricate system regulates the part of the brain that controls metabolism through the adrenal gland. They also found that men with accumulations of fat in the stomach had nervous system changes that help to keep the bodily functions in balance. These researchers believe that these brain and neuroendocrine changes happen due to a life of chronic stress.

The how

One method of determining where you store your body fat is to use the waist to hip ratio formula. Take a measuring tape from your sewing room or sewing kit and measure the circumference of your hips at the widest part of your buttocks. Write this number down and then measure at the smallest circumference of your waist, just above your navel. As you measure your waist, don’t suck your stomach in, as this will give a false reading. Letting it all hang out is the best stance here.

Divide the hip number into the waist number to determine the ratio. If the number is one or above you are at an increased risk of one or more of the diseases previously listed.

The formula is Waist ÷Hip and anything less than one is good news.

More next week.

030417 Spare tire risks associated with carrying fat around your stomach.(1/2)

030417 Spare tire risks associated with carrying fat around your stomach.(1/2)

By Danny M. O’Dell, MA. CSCS*D

According to recent research, those who have a large potbelly appear to have a higher risk of arteriosclerosis. This is the medical term for the fatty buildup on the lining of arteries that researchers now believe increases the risk of heart attack and stroke. SOURCE: Diabetes 2003;52:172-179

People who carried this “spare tire” of fat around their waists are more likely to have increased fat and cholesterol in their blood.

The study by doctors in Seattle also noted that insulin resistant people with excess abdominal fat also appeared to show higher concentrations of a substance known as apolipoprotein B (apoB) and lower levels of high-density lipoprotein (HDL) cholesterol, a “good” form of cholesterol. Previous studies have suggested that high levels of apoB may encourage the development of arteriosclerosis.

Study author Dr. Steven E. Kahn of the VA Puget Sound Health Care System in Seattle, Washington, states that he and his colleagues suspect that a potbelly likely precedes insulin resistance. Once both conditions have set in, he noted, people’s bodies are more likely to be primed to develop arteriosclerosis.”We think that the deposition of fat in the inside of the abdomen is the critical determinant of insulin resistance in the general population,” Kahn said. “We think that the fat begets the insulin resistance, which helps produce” risk factors for arteriosclerosis, he added.

Kahn’s is not the first study to identify health hazards of potbellies. Although body fat tends to relocate to the abdomen with age, past research has shown that excess belly fat, compared to fat elsewhere on the body, can increase the risk of heart disease and type 2 diabetes, as well as up the chances of stroke in middle age.

In the current study, Kahn and his colleagues measured body fat distribution and screened for insulin resistance in 196 people. The authors also determined how much choesterol, fat, and apoB was present in each participant’s blood.

The average age of study participants was 53. They were all seemingly healthy, with no history of diabetes or cardiovascular disease.

Reporting in the January issue of Diabetes, Kahn and his colleagues discovered that people with bigger potbellies who were more resistant to insulin also had lower levels of HDL cholesterol and higher levels of low-density lipoprotein (LDL) cholesterol–the “bad” form of cholesterol.

030417 Spare tire risks associated with carrying fat around your stomach. (1/2)

030417 Spare tire risks associated with carrying fat around your stomach.

By Danny M. O’Dell, MA. CSCS*D

According to recent research, those who have a large potbelly appear to have a higher risk of arteriosclerosis. This is the medical term for the fatty buildup on the lining of arteries that researchers now believe increases the risk of heart attack and stroke. SOURCE: Diabetes 2003;52:172-179

People who carried this “spare tire” of fat around their waists are more likely to have increased fat and cholesterol in their blood.

The study by doctors in Seattle also noted that insulin resistant people with excess abdominal fat also appeared to show higher concentrations of a substance known as apolipoprotein B (apoB) and lower levels of high-density lipoprotein (HDL) cholesterol, a “good” form of cholesterol. Previous studies have suggested that high levels of apoB may encourage the development of arteriosclerosis.

Study author Dr. Steven E. Kahn of the VA Puget Sound Health Care System in Seattle, Washington, states that he and his colleagues suspect that a potbelly likely precedes insulin resistance. Once both conditions have set in, he noted, people’s bodies are more likely to be primed to develop arteriosclerosis.”We think that the deposition of fat in the inside of the abdomen is the critical determinant of insulin resistance in the general population,” Kahn said. “We think that the fat begets the insulin resistance, which helps produce” risk factors for arteriosclerosis, he added.

311216 Fat-the good and bad of it

311216 Fat-the good and bad of it

Just what you wanted to know entering the New Year festivities. Sometimes guilt trips work…

A key component in assessing an individual’s health and physical fitness is knowing the body composition makeup. Obesity (excessive body fat relative to body mass index (BMI) of 30 kg/m2 or more) and becoming overweight (Adults with BMI between 25-29.9 kg/m2 or with children being in and over the 95th percentile for their age and sex) is at epidemic proportions in the United States and the trend is gathering momentum.

Right now we are at the top of the fat list compared to the majority of the nations in the world-an unfortunate but sad fact.

Being obese brings serious health consequences and reduces life expectancy by increasing the risk of developing serious diseases such as coronary heart disease, hypertension, aka the silent killer, type 2 diabetes, obstructive pulmonary disease, osteoarthritis and even certain kinds of cancer.

Just as too much fat in the body can cause problems, so can too little. Our body needs fat to operate in a normal physiological fashion. For example, the essential lipids such as the phospholipids are vital to cell membrane formation. The non essential lipids such as triglycerides which are found in the adipose (fat) tissue protect the body by providing a layer of thermal insulation. Fat tissue assists in storing metabolic fuel in the form of free fatty acids.

These same lipids are also involved in the storage and transport of the fat soluble A, D, E, and K vitamins and in helping to maintain the functionality of the nervous system. The menstrual cycle in females and the reproductive systems in both male and female rely on these cells, as does the growth and maturation processes of the pubescence child.

Thus, too little body fat as seen in those with eating disorders such as anorexia nervosa, or someone with an exercise addiction or even certain diseases such as cystic fibrosis can lead to serious physiological health related consequences.

The best option is to be in the normal range for body fat, not over or under the recommendations if you desire to have good health.

Testing the body fat levels

The previous article briefly discussed the near crisis issue of being overweight and the staggering rise of obesity in our nation. Here we are going to look behind the scenes at the testing methods that determine fat or fit.

A classification of the level of body fat relies on the standard relative body fat percentages commonly used across the world. These classifications are in turn then broken up into age, sex, and activity body fat percentages at recommended levels. Across the scale women carry more body fat than males and younger people of both sexes carry less fat than older adults. This is due to the role women have in the reproduction of our species.

What are the body composition measures used for?

Body composition measures are useful in estimating a healthy body weight and figuring out a recommended nutritional plan. Both of these components are essential in designing an exercise program that will be beneficial to the trainee. Athletes who participate in weight bracket sports such as bodybuilding and wrestling need to know their ideal weight in order to be competitive. Pediatricians and other health care professionals make note of these measurements while monitoring the growth of children and to identify those who are at risk of being under or over weight.

The population of our country is getting older and the changes in body composition are important indicators of whether the person is remaining healthy or not. In each case, the assessment of body fat helps to determine the nutritional and exercise prescription intervention strategies that play a prominent role in charting a course of action to improve health and fitness levels.

Background on the measurement procedures

The body is made up of water, protein, minerals and fat substances. Most body fat identification procedures rely upon the two component model which divides the body into two sections: fat free and the fat tissue. The fat free is made up of all the chemicals and the tissues including water, muscle and the bones. The rest is fat. The testing methods separate the water, protein and minerals from the fat and then give a percentage of lean body mass to fat mass. Stay active and healthy in your life.

240816 Eat your Raspberries

Eat your Raspberries

In a review of scientific literature, published in the January 2016 issue of Advances in Nutrition the conclusion is “Raspberries have a number of heart and brain-health protective essential nutrients.”[1]

It seems as though Raspberries contain anti-inflammatory, anti-oxidative and metabolic stabilizing activity. All of which are good news to those of us interested in maintaining our health.

Raspberries also have anthocyanins, a known inflammation suppressant. Additional benefits accrue from the high amounts of polyphenol in the berries. Polyphenol may help in preventing platelet buildup and reduce blood pressure too.

There is further good news for those with diabetes; “Raspberries have potential to help reduce factors contributing to metabolic syndrome, which has implications for diabetes development and overall cardiovascular and brain health” says lead author Britt M. Burton-Freeman, PhD, MS, Institute for Food Safety and Health, Illinois Institute of technology.”[2]

[1] DukeMedicine, April 2016, VOL. 22, No.4

[2] IBID