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Ronald Mc Donald
the next fitness guru?
Here's one I bet you never expected......Mc Donald’s is looking to reposition
Ronald McDonald (yes the clown) as a fitness and health ambassador. A leaner Ronald will
encourage McDonald's young consumers to exercise. Ronald, who is known
officially within McDonald Corp. as "chief happiness officer," will soon be
seen riding a skateboard with a basketball star and kicking a football.
Ronald, the company's
newly dubbed "chief happiness officer," has become the company's "ambassador
for an active, balanced lifestyle," McDonald's Chief Creative Officer
Marlena Peleo-Lazar told a US government panel yesterday. Her announcement
came the same week an appeals court reinstated a lawsuit against McDonald's
in which two New York
teenagers claim they got fat because the company hid the health risks of its
food. Other major food companies also are promoting fitness in schools. Last
fall, PepsiCo Inc. sent fitness educational materials to elementary schools,
reaching 3 million students. In March, the beverage and snack-food company
will send another round, this time to all 15,000 middle schools in the
country.
These educational
programs were discussed at a day-long workshop sponsored by the Institute of
Medicine, which Congress directed to study the impact of food marketing on
childhood obesity and healthful eating.
The study comes as
a growing number of health care professionals and consumer activists are
calling for more government oversight of food advertising because the number
of obese children has more than doubled in the past 30 years.
Several major food
companies are responding to the concerns by reformulating many of their food
products and developing or adding new ones to offer more healthful
alternatives, such as reduced-sugar cereal. McDonald's, for example, has
added milk and apples to its kids' menu. Meanwhile, Kraft announced earlier
this month that it will curb advertising of many of its snack foods to
children under 12.
The food industry
is seeking legislation to block lawsuits, such as the one just reinstated
against McDonald's. The Virginia House of Delegates did just that yesterday,
strengthening existing law by approving a bill saying state residents can't
blame their weight gain on food companies.
In the past, the
Ronald McDonald character has visited schools to teach about such issues as
bike safety and literacy. Now the clown will be touting physical activity.
No burgers or fries will be promoted. "Ronald does not promote food, but fun
and activity -- the McDonald's experience," said company spokesman Walt
Riker.
The campaign was
criticized by Harvard psychologist Susan Linn, author of "Consuming Kids."
"It's just another
marketing ploy for McDonald's," she said. "It has no place in the school.
The amount of exercise it will take to exercise off everything these kids
consume will take all day."
The program has
been reviewed and approved by the American Academy of Pediatrics. "We're not
endorsing McDonald's or Ronald McDonald, but wanted to make sure the message
was safe and appropriate," said Reginald L. Washington, co-chairman of the
academy's task force on obesity. The program, he said, "takes advantage of
the fact that Ronald McDonald has such recognition with kids that if he
tells them to get moving, maybe they will do it."
Source: Caroline E. Mayer, Washington
Post, Friday, January 28, 2005.
City to Surf
– Meal plan for Sunday
For those Sydneysiders
taking part in the City to Surf fun run this Sunday we have developed a race
day nutrition and hydration plan to get you to Bondi in your best time yet.
Aside from the obvious
training, the most important nutritional goals for an event of this type are
ensuring adequate hydration and carbohydrate levels before, during and after
the race.
Hydration
Physical activity increases body temperature, increases water loss via
sweat, uses-up muscle and liver glycogen stores and can sometimes cause a
fall in blood glucose levels. Numerous studies confirm that exercise
performance is impaired when an individual is dehydrated. The effects of
dehydration can begin when an individual is dehydrated by as little as 2% of
body weight. Water losses greater than 5% have been shown to reduce
exercise performance by around 30%.
Dehydration is most evident when
the amount of water loss exceeds 3% of body weight. This dehydration then
leads to a fall in endurance, strength, and overall performance.
Dehydration also affects the ‘perception of effort’ experienced as exercise
at the same intensity seems progressively ‘harder’ as dehydration worsens.
Pre-race meal and
hydration
Ideally you should
consume a carbohydrate-rich breakfast 3-4 hours prior to the race
(5:30-6:30am). For those early risers amongst us here are some pre-race
breakfast suggestions:
-
Porridge with low-fat
milk and fruit juice
-
Breakfast cereal with
milk or yoghurt
-
Pancakes/pikelets
with syrup, jam or honey
-
Toast, muffins or
crumpets with jam
-
Rice cakes or bread
rolls with sliced banana
-
Fresh fruit or fruit
salad
-
Baked beans or
spaghetti on toast
-
Banana and honey roll
You should also drink at least 500mL fluid with your pre-race
breakfast then continue to consume 150-300mL fluid every 15-20 minutes up
until about one hour to 45 minutes before the race (leaving time for a
toilet stop before the start).
For those of you who are
not planning on being up quite so early, a pre-race light breakfast or snack
1-2 hours prior to the race could include:
-
Small serving of
breakfast cereal, ½ cup of milk, and juice
-
Smoothie based on
low-fat milk or soy milk, low-fat yoghurt and mango/banana/berries
-
Fresh fruit or small
serving of fruit salad with low-fat yoghurt
-
Low-fat breakfast bar
or muesli bar and a banana
-
Sports bar
-
800-1000 ml of sports
drink
-
500 ml of fruit
juice, soft drink or flavoured mineral water
-
3 medium pieces of
fruit or 2 bananas
-
Thick-sliced toast
with jam or honey
-
3 thick rice cakes with
jam or honey
-
2 crumpets with
vegemite, jam or honey
-
banana jaffle
You should also drink at least 500mL fluid with your pre-race
snack then continue to consume 150-300mL fluid every 15-20 minutes up until
about one hour to 45 minutes before the race (leaving time for a toilet stop
before the start).
The intake of a large but
comfortable volume of fluid (eg. 5mL/kg body weight) just prior to the race
can actually help some athletes prepare their stomachs for fluid intake
during exercise. However this is only suggested for those of you who have
tried this technique during training and are sure that it won’t cause
stomach cramps or lead you straight to the long queue at the port-a-loo.
Hydration during the
race: Sports drinks or water?
Thirst
is not a reliable indicator of adequate hydration during exercise. During
the race try to consume about 150-350mL of sports drink every 15-20
minutes from the start. Until recently it was considered that carbohydrate
intake (such as sports drinks) during exercise would only benefit exercise lasting more than 90
minutes. However there is a growing body of evidence suggesting that
carbohydrate intake can benefit performance in events involving
high-intensity exercise of approximately one-hour duration. Sports drinks
provide a valuable source of carbohydrate (sugars/glucose) during exercise
and deliver energy to working muscles. The sodium content of sports drinks
also enhances the body’s retention of water.
Recovery
To
ensure effective recovery (replace body fluid and carbohydrate stores) aim
to replace fluids by drinking water or sports drinks throughout Sunday
afternoon and aim to eat a balanced meal containing carbohydrates, protein
and healthy fats within 4 hours of completion of the race.
See you at Bondi!
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Cold swims make
you ravenous
Taking a swim
in cold water may be invigorating, but according to new US research it may
also increase your appetite enough to contribute to weight gain.
Researchers from the University of Florida compared the energy intake of 11
male volunteers after swimming in warm, then cold water and found that
energy intake was 44% higher after exercising in cold water.
The research authors also suggest that the findings may help to explain why
some people find it difficult to lose weight by swimming.
"It's
possible that individuals who exercise in cooler water may have an
exaggerated energy intake following exercise, which may be a reason why they
don't lose as much weight," says Assistant Professor Lesley White. "So
it may not be the exercise itself that causes the problem because you can
match the exercise energy expenditure; rather it's the increased eating
after the exercise is over."
The
research published in the
International Journal of Sport Nutrition and Exercise Metabolism
reported that student volunteers exercised on a stationary bicycle submerged
in water for 45 minutes, in either cold water at 20°C or warm water at 33°C.
The students were then put into a room with food.
"We found that during the recovery period, when the subjects had access to
an assortment of foods, that significantly more calories were eaten after
exercise in cold water compared to exercise in warm water or at rest," White
says.
Source: ABC Science Online
Happiness helps people stay healthy
People
who are happier in their daily lives have healthier levels of key body
chemicals than those who muster few positive feelings, a new study
suggests. This means happier people may have a reduced risk of chronic
disease including diabetes.
Several studies have confirmed the negative impact that depression can have
on health. But few studies have actually focused on the effect of positive
mood. Researchers from University College, London have linked everyday
happiness with healthier levels of body chemicals including the stress
hormone cortisol.
“This study showed that
whether people are happy or less happy in their everyday lives appears to
have important effects on the markers of biological function known to be
associated with disease,” says clinical psychologist Jane Wardle, one of the
research team.
The team studied 216 middle-aged men and
women living in London. Participants were asked to rate how happy they
had been feeling in the last five minutes, and at about 33 points during their
working or leisure days. At these points, their heart rates and blood
pressures were also measured by an automated system.
Saliva samples were taken
to test the stress hormone cortisol and one occasion participants were
invited into the lab and given a “mildly stressful” task to perform while
their biological responses were measured. The team controlled for factors
such as socioeconomic position, age and gender to try to tease out the
effects of happiness alone on health.
“The happier you were, the
lower your cortisol levels during the day,” says Wardle. “For men, but not
for women, the happier you were the lower your average heart rate was.”
High levels of cortisol
are linked to conditions such as type II diabetes and hypertension. Lower
heart rates are associated with cardiovascular health.
In addition, individuals
who said they were happy almost all of the time had lower levels of a blood
protein called fibrinogen following the stressful task. Fibrinogen makes
blood “sticky” and is vital in the clotting process, but high concentrations
can indicate future cardiovascular disease problems.
Wardle suggests that the
way the brain functions while happy “perhaps makes the little hassles and
irritations of everyday life loom less large, so you don’t get such strong
reactions to them”.
Source: Bhattacharya
S. NewScientist.com news service. 18th April 2005.
Bulking up: are protein supplements really necessary?
Walk into any gymnasium
and you will understand why most body builders and other strength athletes
believe the only way to 'get huge' is to use expensive protein supplements.
The range of powders, bars, shakes etc all promising maximal muscle gain is
astounding, but are they actually necessary?
Dietary protein is used by the body to make
a wide array of vital body components, including muscle. However the
body does not store protein, therefore the body can only utilise a finite
amount of protein each day for muscle growth. Protein intake
recommendations for body builders and athletes wanting to bulk up range from
1.2g/kg/day to an upper level of 2g/kg/day 1,2,3. So, for
example, if an 85kg male was wanting to bulk up, the maximum amount of
protein his body would use 170 grams of total protein. Male body
builders generally consume at least this level of protein in their regular
diet.
The average Australian male consumes about
100 grams of protein in his diet each day with a
significant amount coming from animal products. Body builders and
other strength athletes however are renowned for overemphasising the
importance of protein foods (especially meat, poultry and eggs) with some
eating more than 4 grams protein
per kilogram of body weight per day, believing that this will further
enhance muscle gains 4.
Excess dietary protein does not however
build bigger muscles, the majority is simply burned by the body as an
(expensive) energy source. Small amounts are also converted to glucose or
fat. Nonetheless body builders are commonly convinced by claims such
as 'highest quality protein' and 'food for your muscles' that protein
supplements offer muscle gain advantages not available via common food
proteins alone.
Protein quality is an
expression of how effectively food proteins meet the essential amino acid
requirement to support body growth and maintenance. Generally
speaking, proteins from animal sources (meat, fish, poultry, eggs, dairy
products) are considered to be high quality protein because they contain all
of the essential amino
acids required for body growth and maintenance. Plant
proteins (legumes, nuts, seeds, grains) tend to be lacking in one essential
amino acid, meaning that they cannot, by themselves, support protein
synthesis (muscle growth). This is easily overcome by combining
different plant proteins.
In relation to protein
supplements what is important to remember is that protein quality is
only relevant if dietary protein intake of essential amino acids is
inadequate. Regular consumption of animal proteins (or vegetarian
diets that combine different plant proteins each day) provides all of the
essential amino acids required for muscle growth. Additional intakes
of essential amino acids and 'highest quality protein' above requirements
are simply burned for energy or converted to glucose or fat, regardless of
the quality of the protein consumed.
Key requirements for
muscle growth are a progressive resistance training program, adequate energy
and protein intake and genetic potential.
References:1.
Lemon PW, Tarnopolsky MA, MacDougall JD, Atkinson SA. Protein requirements
and muscle mass/strength changes during intensive training in novice
bodybuilders. J Appl Physiol 1992;73:767-75. 2.
Wardlaw GM, Hampl JS, DiSilvestro RA, Perspectives in Nutrition 6th Edition,
McGraw Hill Higher Education, New York. 2004.3.
Tipton KD and Wolfe WR. Protein and amino acids for athletes. Journal of
Sport Sciences 2004;22:65-79 4.
Slater G, Practice Tips, In: Burke L and Deakin V. Clinical Sports Nutrition
2nd Edition. Mc Graw Hill Australia Pty Ltd. 2003.
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