Longest ever running race. Share. The longest race ever staged was the 1929 trans-continental race from New York City to Los Angeles, California, USA of 5,850 km (3,635 miles). The Finnish-born Johnny Salo (1893-1931) was the winner in 1929 in 79 days, from 31 March to 17 June.
A lactic acid test is a blood test that measures the level of lactic acid made in the body. Most of it is made by muscle tissue and red blood cells.When the oxygen level in the body is normal, carbohydrate breaks down into water and carbon dioxide. test for lactic acid is done to: 1  Check for lactic acidosis. 2  See whether the right amount of oxygen is reaching the body's tissues. 3  Find the cause for a high amount of acid (low pH) in the blood.
Formation of lactic acid in muscles occurs when insufficient oxygen is supplied to the muscles, resulting in the release of energy via anaerobic cellular respiration instead of by aerobic cellular respiration (see right).owever, the lactic acid was only formed due to lack of sufficient oxygen to release the required energy to the muscle tissue via aerobic respiration. Lactic acid can accumulate in muscle tissue that continues to be over-worked.