Level One
We are
learning what it means to be fit and healthy.
When you think you are ready for the level one quiz, ask Krish for a copy, fill in the answers at home and if you can also do squats, lunges, press ups and rows with good form, you can get your level one certificate in assembly and move onto level 2!
·
We are looking at four main
components of health and fitness at the moment, in level 1.
These are:
1.
Cardiovascular Health and
Fitness
2.
Muscular strength and
endurance
3.
Balance
4.
Nutrition
Let’s
look at each of these in a little more detail.
·
Cardiovascular
Health and Fitness
You
might also hear this called CV or cardio.
It is to do with keeping your heart and lungs in tip-top condition.
You need good CV fitness to be able to play football, to
run around, ride a bike or swim, etc.
- Your lungs deliver oxygen to your blood.
- The oxygenated blood is taken to your heart and pumped around your body, fuelling your muscles with oxygen and glucose (you get the best glucose from eating carbohydrates – fruits and vegetables and whole grains).
- The de-oxygenated blood is returned to your lungs and you breathe out carbon dioxide.
So,
you see how your heart and lungs work together to help your muscles work?
The better your heart works, the greater the amount of
oxygenated blood it can deliver to your muscles.
The greater the amount of oxygenated blood your heart can
deliver to your muscles, the longer they can work for before they get tired!
Bigger
muscles need more oxygen, that’s why you need to do both resistance training and
cardio.
The kinds of exercises you need to do to improve your CV health
and fitness are anything that gets you:
1.
Hot
2.
Sweaty
3.
Out of breath
·
Muscular
Strength and endurance
This
is resistance training either with body-weight exercises or using free weights
or machines and it’s how we get stronger and leaner.
You need muscular strength to do everyday tasks like
sitting down and standing up, climbing across monkey bars and lifting things.
In
order for your muscles to get stronger, they need to regularly work harder than
they are used to working normally.
This is called overload.
Sometimes,
if you are working your muscles really hard, they will get tired and not work
as well. This is perfectly
normal.
They
might also burn a little. This is
because of a build-up of lactic acid in your muscles and is also perfectly
normal. It’s a sign you have done
enough. It’s called your lactate threshold.
You can train
to raise your lactate threshold so that you can work for longer without your
muscles getting tired. This is why
we do resistance training.
Sometimes
if you have worked your muscles really hard, they will ache a day or two
later. This is called DOMS or Delayed Onset Muscle Soreness and is also perfectly normal. It is a sign you have worked really
hard and people who love exercise learn to love DOMS as a sign they have worked
hard!
The
stronger we are, the better able we are to balance as we are able to control
our muscles better and for longer.
You need good balance for agile moves in football or
netball or cool dancing.
The
major muscles we use for balance are our core muscles – we will go into our
core muscles in more depth in level 2.
Our core muscles are located in our abdomen (around our lower back
and tummy) and serve three main purposes:
1.
They protect our spine
2.
They protect some of our
internal organs
3.
They assist us with
functional movements
·
Nutrition
Your
body needs certain things to survive and the better you nourish your body the
healthier you will be.
You need to nourish your body with healthy things to
feel good, build muscle and for energy.
It’s
no good doing loads of lovely exercise and then eating really unhealthy
stuff. We will look at nutrition
in more depth at level 4.
Your body needs these things to remain healthy:
(Note that it doesn’t say anywhere here that you need sugar or
processed foods like chips, crisps, cakes, pies or sweets. They won’t kill you, of course but you
do not need them to survive or be healthy.)
1.
Roughly 60 % Carbohydrates
(fruit, vegetables and whole grains)
2.
Roughly 25% Protein
(Meat, fish, dairy, nuts, pulses, beans)
3.
Roughly 15% Healthy Fats
(Nuts, dairy, animal fats)
4.
Vitamins and Minerals
5.
Water
Krish x
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