Tuesday, November 17, 2009

HIIT or miss



No, it's spelt right. HIIT, high intensity interval training.
We got into anaerobic thresholds last night in the class. Boy was it tough, 8 rounds of 30 second explosive works with a 90 second break in between. I padded for the lads, Alvy, Fiachra, Adam, Shokri and Neidín, I threw in a little bit of adrenal stress drills, it keeps them under pressure and pushes them way outside their comfort zones, both mentally and physically. Poor Fiachra reproduced his dinner, in the shower! He's a Cork man so we'll let him away with it!There will be plenty more visits to the club from the HIIT bogey man in time to come.

Anaerobic exercising is an interesting topic. I had one of the lads come into class last week and tell me his teacher said Taekwon-Do wasn't an anaerobic sport. Apparently his teacher said an anaerobic sport has got to do with holding your breath. That sounds like a lot of fun, I must say.
Me thinks this teacher is confusing the actual term anaerobic with anaerobic exercise. The word anaerobic literally means without air. There are various forms of anaerobic materials and substances on this earth, that do actually function without the aid of oxygen, some bacteria for an example, and a special underwater adhesive, apparently.

When we talk about anaerobic exercise however we are talking about anaerobic work, involving maximum effort, the body is working so hard that the demands for oxygen and fuel exceed the rate of supply and the muscles have to rely on the stored reserves of fuel. The muscles, being starved of oxygen, take the body into a state known as oxygen debt.

The body's stored fuel soon runs out and activity ceases - painfully. This point is often measured as the lactic threshold or anaerobic threshold or onset of blood lactate accumulation (OBLA). Activity will not be resumed until the lactic acid is removed and the oxygen debt repaid. Fortunately, the body can resume limited activity after even only a small proportion of the oxygen debt has been repaid. Since lactic acid is produced, the correct term for this pathway is lactic anaerobic energy pathway.

The alactic anaerobic pathway is the one in which the body is working anaerobically but without the production of lactic acid. This pathway can exist only so long as the fuel actually stored in the muscle lasts, approximately 4 seconds at maximum effort.

Anaerobic endurance can be sub-divided as follows:
Short anaerobic - less than 25 seconds (mainly alactic)
Medium anaerobic - 25 seconds to 60 seconds (mainly lactic)
Long anaerobic - 60 seconds to 120 seconds (lactic +aerobic)
Anaerobic endurance can be developed by using repetition methods of relatively high intensity work with limited recovery.
Types of anaerobic exercises include interval sprints, plyometric drills, high intensity pad work, stair sprints and Olympic lifting. Types of anaerobic sports would include both WTF and ITF sport Taekwon-Do, sprinting, speed skating, Rugby, sprint cycling and other such high intensity low time span sports.
So, I suppose after 20 years of Taekwon-Do, having a secondary school teacher tell me and scientific research that we're wrong is a bit like me telling that teacher that the capital city of Argentina is Peru.

It is, isn't it?

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