The lactate threshold (LT) (or lactate inflection point (LIP) or anaerobic threshold (AT)) is the exercise intensity at which lactate (more specifically, lactic acid) starts to accumulate in the blood stream.
The third largest country of the world, the United States of America is located in North America between Mexico and Canada.he states of Alaska and Hawaii Islands are the only two states not sharing contiguous boundaries with the country. Alaska is situated to the northwest side of North America sharing its border with the neighboring country of Canada and Hawaii Island is an archipelago in the Pacific Ocean.
Hawaii, the only state not part of the mainland of North America, and the only US state located in the tropics, and is located approximately 2100 miles southwest of San Francisco. Hawaii is an archipelago of eight principal islands and numerous rocky islets, reefs, and shoals in the North Pacific Ocean.