By exercising you will develop balance, coordination, strength and flexibility. If you are disabled exercising will help prevent fatigue.
Depending on your disability, you may want to start out with some basic stretching exercises. Resistance bands are inexpensive, portable, and can be used whether you are sitting, standing or lying down.
It is important to maintain a healthy diet that includes three to five servings of vegetables, two to three servings of fruits and two servings of protein per day. By eating small meals when you are hungry you learn portion control. You must keep high calorie food out of sight. Try to avoid activities that encourage you to eat high calorie food. By avoiding sugar and high fat foods you will soon start losing weight and you will feel stronger.
To boost your metabolism in a safe manner while preserving your functional capacity, try my favorite healthy recipes at: http://www.pinterest.com/pamelaprentice/pam-prentice-2020-food/ These yummy recipes provide good nutrition, meal planning and are low in calories.