Strength training is an example of an anaerobic activity.
The body does not use oxygen to complete the tasks performed during anaerobic activities. Anaerobic exercises are performed in short but intense bursts. In contrast, aerobic activities are performed at a lower level or intensity over a long period of time; they require a lot of oxygen. Weightlifting is a form of anaerobic activity, while marathon running is a form of aerobic activity.
Anaerobic Exercise
Any time you are performing an exercise that requires short bursts at a high rate of intensity, you are doing an anaerobic activity. Because your body is not using oxygen to complete the task, you can only do the exercise for a short period of time. Your muscles will become fatigued more quickly during this activity.
Types of Anaerobic Activity
Common types of anaerobic activities include weight lifting, running sprints, and other strength training. Organized sports such as basketball and tennis also include anaerobic activity. Even snow shoveling and chopping wood during can be an anaerobic activity.
How it Works
When your body is performing an anaerobic activity, it is burning fuel such as adenosine triphosphate, creatine phosphate and glycogen, all which do not require oxygen to burn. Unlike aerobic activity, where your body is burning more fats and proteins for energy, anaerobic activities use more carbohydrates, which doesn't always need oxygen. The body also produces lactic acid, a byproduct that the body must burn before you can perform another anaerobic activity. The lactic acid contributes to muscle fatigue. Time in between each anaerobic activity, known as the recovery period, allows your muscles to use oxygen and replace the energy you expelled during the activity.
Anaerobic vs. Aerobic
The opposite of anaerobic activity is aerobic activity. It requires lower intensity and your body can perform it for longer periods of time. Examples include marathon running, swimming, biking and walking. Your body is able to sustain the activity because your muscles are using oxygen and your cardiovascular system is able to adjust to meet the increased oxygen needs of the muscles.
Benefits
Anaerobic activity increases strength and increases your metabolism, allowing your body to burn calories even when you aren't exercising. It can increase your balance, reduce your body fat and increase your muscle mass. In diabetics, strength training can lower insulin resistance and allow the muscles store more glucose.
Warnings
Anaerobic activity isn't for everyone. According to the Cleveland Clinic, it is not recommended for those with certain heart or orthopedic conditions. Before beginning an exercise routine, speak with your doctor about any medical conditions and limitations.
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