How to Prepare

01Do you need to prepare at all?

02If you have a few weeks

Three things repay the effort, in this order.

Cardio, of any kind. The specific demand of a class is hard to replicate, but general aerobic capacity transfers and it is what runs out first.

Hip mobility. More than flexibility in the splits sense. The limitation most beginners meet is raising a knee and keeping it there, and that is hip flexor and control rather than hamstring length.

Something that makes you turn up regularly. The habit matters more than the content. People who already have a three-times-a-week habit of any kind adapt faster than people who arrive fitter but sporadic.

03The two things that backfire

Learning technique from video. You will arrive with a version of a movement that has to be unlearned before the correct one can be taught, which is slower than arriving with nothing. Watching classes to know what happens in one is useful. Rehearsing the movements is not.

Trying to get used to being hit. This is the more serious of the two. Conditioning yourself at home — striking hard objects, having someone hit you, anything in that family — produces injuries and no adaptation worth having. The reason is in how conditioning actually works: the increments are set by someone watching, and at home nobody is.

04The week before

Nothing dramatic. Do not start a new training programme in the days before a first class; arriving sore is a poor start and it is avoidable.

Trim your toenails. This sounds like a joke and is not — karate is practised barefoot and a long toenail meeting a partner's shin is one of the more common minor injuries in any dojo, in both directions.

If you have an old injury, plan to mention it. Not as a disclaimer: a competent instructor will adjust what you are asked to do, and can only do that if told beforehand.

05The day itself

Eat something a couple of hours before rather than immediately before — the class contains abdominal work and partner drills to the body, and a full stomach makes both unpleasant.

Arrive early enough not to be rushed. What happens in the first thirty minutes is covered on our page about starting, and the practical reason for arriving early is mundane: being shown where to change and where to stand removes most of the anxiety of a first session.

Hydrate during the day rather than trying to drink a litre on arrival.

06What you cannot prepare, and why that is fine

Two things are genuinely unpreparable, and knowing that in advance removes most of the anxiety about them.

The first is the unfamiliarity itself. There is no exercise that makes a training hall with its own vocabulary and etiquette feel familiar; only attendance does that, and it happens faster than people expect.

The second is the specific fatigue. It comes from holding positions and repeating leg movements, and nothing in a gym reproduces it closely enough to matter. Everyone meets it in their first session, including people who arrive from other sports in good condition.

07What to expect of yourself

You will be out of breath sooner than you predicted, you will do the movements wrong, and you will probably not remember anybody's name. All three are the standard experience and none of them is information about whether you should continue.

The honest metric for a first class is not how you performed. It is whether you would come back — and that question is mostly about the room.

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