SWIMMING IS SWELL FOR THE HEART
For exercise that's as heart healthy as jogging but spares your joints undue wear and tear,try swimming.
Researches at the university of Texas health science center,Dallas,put a group of previously inactive middle-aged adults through 12 weeks of intense swim training.They swam six days a week and trained with weights three days.At study end there cardiovascular fitness had improved considerably.Maximal oxygen up take increased by an average of about 20 percent.Plus each contraction of the heart muscle pumped a greater volume of blood through the arteries without elevating blood pressure.
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