Aerobic capacity is one of the key rugby fitness components.
Your aerobic endurance capacity is the ability to supply oxygen and nutrients to the muscles and remove the by product of this energy source i.e. Carbon Dioxide. Remember in the endurance overview I said that energy is never destroyed, well when you convert it from one form to another , ‘stuff’ that is not ideal for the muscle environment is released.
When you are trying to get fit for rugby you breathe in air as you play or train, that air is taken into the lungs where the oxygen transfers into the blood, returning to the heart before it is dispatched to the muscles, the blood delivers oxygen and nutrients need to re-synthesise the energy for muscle contraction. The blood then takes the carbon dioxide back to the lungs so that you can breathe it out.
Foundation aerobic endurance for rugby fitness is essential if you are just starting out and trying to increase your rugby fitness levels. As you do this type of training you will increase a number of key components that enable you to do more work. Such as increasing lung capacity, increasing heart strength, growing more blood vessels to the deepest parts of the muscle, and lots of other local more complex changes.
Here’s the downside to aerobic training;
It makes you slow
It makes you weak
It makes you lose muscle size
All three things are not desirable for a rugby player, that’s why you only need to have a foundation and then a maintenance program….it would be different if you were a marathon runner!
How much time should you spend building a foundation?
It’s difficult as all will have individual requirements but I would suggest that the first thing you do is workout how aerobically fit you are now?
A simple running test to get an estimate of your fitness for rugby is to run 1.5 miles as quickly as you can.
Now there is a little bit of maths to do here but I’ll take you through it.
First take your time i.e. 9:46 and do this.
The number of minutes it took you 9 x 60 = 540 + 46 (the number of seconds you took) = 586
586/60 = 9.77 (this is your time as decimal)
Now the final equation –
2400 / 9.77 x 0.2 + 3.5 = 52.62
The only figure you need to exchange each fitness testing session is the time it took you decimal, in this case 9.77
If you took 11 minutes 35 seconds then your score would be 44.95
2400 / 11.58 x 0.2 + 3.5 = 44.95
Don’t worry about the actual value of these figures for now it is a measure of your maximal oxygen utilisation capacity and is measured in millilitres of oxygen used per kilogram of bodyweight per minute.
In the table below I have summarised some levels to attain to and given some recommendations on training time afterwards.
< 45 – Low foundation, needs to be addressed with a 8-10 week program and then addressed on more specific phases of the yearly training plan.
45-49.9 – Moderate foundation, needs a few weeks to build to an acceptable level, 4-8 weeks program.
50-54.9 – Acceptable Foundation, 2 - 4 week program to induce a quick boost.
>55 – Good Foundation, 0-2 weeks depending on time of year. Maintenance and short programs in the off season.
The top rugby players now have aerobic capacities in the mid to high 60’s so there is always room for improvement at the right time of the year if you need it.
Once you have a foundation base of aerobic conditioning under your belt, you will only need to do minimal maintenance sessions. The majority of your endurance training will be spent in the area of anaerobic capacity.
If you were in the low or moderate band then you should probably worry more about that than the possible down sides I mentioned above of getting, slower, weaker or smaller. The chances are you’re carrying a little of extra weight any way and shifting some initially before you put it back on may be the best course of action.
So why have a foundation at all? Well having a really good base of aerobic capacity you are able to deal with a lot of the by products of re-synthesising energy fast. The long boring runs meant that you got a bigger heart and can send more blood around with less effort, also you grew new blood vessels into the deepest parts of your muscles, meaning that the blood can mop up the bad stuff better.
Basically it helps you recover quicker. Imagine chasing an aerial ping pong battle during a game and then suddenly getting a 30 second breather before the lineout or scrum. Well you’ll recover quicker the fitter you are.
FREE FOUNDATION PROGRAMS WILL BE UPLOADED VERY SOON.