Diet and exercise.
Getting in shape was,by far, the most important thing I have done to improve my fighting. After working on getting in shape, I got back into fighting after a year long hiatus. I was amazed at how slow everybody was, and how light and fast my sword was. My reflexes were instantaneous, and I could fight longer than anyone else, including the two 16 year olds. Which was good, because I kept winning!
Buy the book,
Body for Life by Bill Phillips. It has all the info you need to get yourself in mega shape in 3 months. To get an idea of what results people like you can get, check out bodyforlife.com
it boils down to this: your body is a machine. It was made to run on specific amounts of food at specific times. It will build and maintain as much muscle as you need and not an ounce more.
If you show your body that you need more muscle by working that muscle to failure, your body will build muscle. That's where exercise comes in. But only if it has the building blocks to do it when it needs it-and that's where diet, and timing of your eating, comes in.
If you have muscle, you will burn fat easier.
When you get down to it, we get out of shape because we work against our body's chemistry. Over eating builds fat. Not exercising, and not feeding your body every 3-5 hours loses muscle. So, the American lifestyle is uniquely geared to obesity, diabetes, heart attacks, etc.
To get away from this, it's going to take a
lifestyle change. A portion of your day has got to be geared toward getting in and staying in shape. But it doesn't have to be a painful change.
I get up t 5:30. I have a glass of water and I go work out. Three days a week, I do 20 minutes of cardio (you can do more if you're trying to lose fat). Three days a week, I lift weights at my home gym (a set of dumbells and a second-hand weight bench are plenty-total investment-less than $100). By 6:30 I'm done and ready for a shower. On my way to work, I have a nutrition shake or a protein bar at 7:30am, and take my vitamins and glucosamine. I wait to eat because my body is burning fat after the workout.
At work, I have a stash of more protein bars and nutrition shakes. Around 10: 30 I drink a shake. At 10:31 I'm back at work. Lunch consists of a chicken sandwich and a diet coke-even though I'm not hungry because I just ate at 10:30. At 3:00 I have a protein bar. Dinner consists of a home cooked meal from the Eating for Life cookbook. At 9:00 I have dessert, again from the Eating for Life cookbook, along with vitamins and glucosamine.
I've been slacking off for the last 4 months and gained 15 pounds. I started my program back up this week and have lost 3 pounds so far.
good luck!