Training program is largely dependent on the character of the person undergoing it. The type will be dictated by the experiences the trainee has had, the level of performance he gives and can give, the body physique and a number of others.
It will definitely start with a comprehensive plan that will focus on your strength and weakness to develop both of them, one to avoidance and the other to ways that will maximize it.
A good plan is never good enough if it cannot even start. You have to visit first your physician to know the general applications you might do with your body. The adjustments in diet, habits and lifestyles and the extent of use you can endure.
Once a check-up is done, the next best thing you can do is to seek the intervention of a professional trainer (if you are planning to take triathlon a lifestyle). If you’ re not, you can always become a weekend warrior and train whenever it pleases you.
Train on your weak sports and give your best shots on your forte. Training must be gradual and so you must expect a gradual change. No winners won because they sacrificed overnight. In fact, the best triathlon athletes train years before...