1. I train in karate, kobudo, kumite & cardio-kickboxing everyday. I am a 31 year old female. I am 5'3" and weigh 140lbs. My arms have become quite large as a result and I would like to slim them down. What exercises should I do? I do not want the muscle to turn into fat. - Gail, U.S.A. -

... First of all you should be congratulated for your energy and devotion to your training. It is quite natural that your body will undergo changes as it adapts and responds to the exercise. Initially your arms may feel larger as a result of developing muscle. If you focus on training for speed rather than strength (speed will also give you power and force), the muscle should provide shape and form to your arms, not bulk.
... If you have begun this training relatively recently you may be creating muscle underneath fat that is already there thus giving the effect you describe. As you continue to train this fat will be utilized by the body as fuel, leaving you with lean and trim arms (and body).
... You don't mention whether you are also lifting weights (or heavy weapons?) Lifting heavy weights rather than lighter weight with increased repetitions can also produce a similar result. Heavy bag training should also be done with speed.
... Also, are you being influenced by an unrealistic and distorted "message" about how women's arms should look? Television, magazines and movies show us too many examples of sleeveless women, with no arms to speak of, who probably can't lift their own suitcase, are emaciated, unhealthy, unhappy and weak. Many other women would love to have the upper body strength you are obviously developing. If you continue your training you will develop a body that is attractive, compelling, strong and healthy in action and function.
... Continue to work in your aerobic/cardiovascular training, with emphasis on fast repetitions. You will burn fat and lengthen and tone your muscle. Be attentive that in your kobudo practice you are not wielding weapons that are too heavy for this stage in your development. You may wish to consult "The Secret Art of Health & Fitness" (available in electronic version from askSensei.com) for guidance and exercises that will "round out" your training.
... Most importantly, remember that in Martial Art we are training for all the benefits it has to offer: physical, mental and spiritual. Let the changes happen. Focus on how you feel and what you can do, which is most impressive. The rest will follow. Set your sights a little further down the path and enjoy the moment you are in.