Muscle Weakness, Weight Loss, and Nutrition in Chronic Obstructive Pulmonary Disease (COPD)
People with severe COPD often lose too much weight. Too much weight loss causes your body to break down muscle and makes you weaker. This can lead to even more shortness of breath and even less activity. Over time, you become so weak that you need to depend on others for daily living.
Some people with COPD weigh too little for good health. People who are very underweight, especially those with emphysema, are likely to die sooner than people with COPD who are at a normal weight.1
Pulmonary Rehabilitation for COPD
Shortness of breath often limits what people with COPD can do. When ordinary activities like walking or climbing stairs become difficult, everyday life with COPD gets harder. Pulmonary rehabilitation for COPD includes a program of exercises that helps people with COPD build their physical fitness. Many pulmonary rehab centers also teach people breathing techniques and strategies for living better with COPD.
Read the Pulmonary Rehabilitation for COPD article > >
The reasons for the weight loss and loss of muscle in COPD are not completely understood. But experts believe that it happens because of a combination of things. These may include:
- Using up more energy and nutrients, perhaps because it takes more energy to breathe or do any physical activity.
- A frequent need for oral corticosteroids . This medicine increases the breakdown of muscle tissue.
- Less interest in food. People who have COPD may eat less because they are depressed, which can cause a lack of interest in eating. Taking certain medicines can also cause this lack of interest.
- Too little oxygen. COPD may be causing too little oxygen to get into your blood. This can keep your body from using food properly.
-
Poor eating habits,
which can also cause weight loss.
- A full stomach may press on your diaphragm and make it harder to breathe. Holding your breath while chewing or swallowing may be uncomfortable if you are already short of breath.
- Older adults who are alone much of the time may not eat right.
- The cost of food may cause poor eating habits in people who have a limited income.
Avoiding weight loss
Eating well is important for:
- Keeping up your strength and your weight and staying active.
- Keeping your immune system strong. That helps you fight the lung infections common in those who have COPD.
A registered dietitian can help you learn how much and what kinds of food you need to eat to stay as strong as you can.
For more information, see:
Citations
Global Initiative for Chronic Obstructive Lung Disease (2009). In Global Strategy for the Diagnosis, Management, and Prevention of Chronic Obstructive Pulmonary Disease. Available online: http://www.goldcopd.com.
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