LYCOS RETRIEVER 
Running: Bodies
built 282 days ago
One factor that plays a major role in 10K running is the weather. For example, higher ambient temperatures will cause an increased in blood flow to the skin, to increase cooling. This will detract from the volume of blood sent to skeletal muscle, which will decrease oxygen supply to these working muscles. In high humidity environments, the bodies ability to cool itself is decreased. This is a result of a decreased rate of evaporation which does not allow sweat to evaporate at a high rate. The result is a lowered ability to maintain the usual race pace.
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Running is to improve your body so when you run it would be rather foolish if you did not take care of yourself and got hurt or injured in the process. It is very important to be safe when you go running and there are certain precautions everyone should take to minimize risk.
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# Shorter forearms in humans make it easier for the upper body to counterbalance the lower body during running. They ... reduce the amount of muscle power needed to keep the arms flexed when running.
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