Academy HPL tests, researches, trains, educates
Capt. Dustin Benker reviews the results of his metabolic test with Dr. Jeff Nelson at the U.S. Air Force Academy's Human Performance Laboratory Sept. 29, 2009. The test measures oxygen consumption and carbon dioxide production and can provide athletes with specific training plans to enhance their physical performance. Captain Benker is a KC-135 Stratotanker pilot. Dr. Nelson holds a degree in exercise physiology. (U.S. Air Force photo/J. Rachel Spencer)

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