Monday, January 16, 2012

inspirational quotes and quotations

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Physical exercises are generally grouped into three types, depending on the overall effect they have on the human body:


Sometimes the terms 'dynamic' and 'static' are used. 'Dynamic' exercises such as steady running, tend to produce a lowering of the diastolic blood pressure during exercise, due to the improved blood flow. Conversely, static exercise (such as weight-lifting) can cause the systolic pressure to rise significantly (during the exercise).