When we exercise, glycogen present in muscles is broken down to glucose which is then metabolised to produce water, carbon dioxide and energy is released.There are several benefits from aerobic exercise. The most important one is that it helps fight depression. Weight bearing aerobic exercises can help improve bone density as well.
The opposite is anaerobic exercise when the heart and respiratory rate cannot keep up with the intense exercise. e.g. fast sprint (as in 100 m race) or lifting heavy weights. Due to the shortage of oxygen, the metabolism occurring in the muscles is of a different type. Metabolic wastes accumulate in muscles which cause pain (“muscle burn”) and one cannot sustain the exercise for a long time. If ‘aerobic exercises’ are performed at a excessively high intensity then they can turn into anaerobic exercises. These too have some benefits but in general its better to devote majority of an exercise plan to aerobic activities.
This is the first post on exercising for fitness. All through April 2014, I plan to cover important aspects of exercising for fitness and share links that you can read at your leisure. Stay tuned..
Stay fit, stay happy.
suggestions are general in nature. Readers are advised to exercise
caution before implementing them and seek expert advise about what is
suitable for their specific needs.