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Arginine improves performance in elite athletes
Arginine improves athletic performance in elite male wrestlers. In this study, nine elite male wrestlers took 1,500 mg of arginine per day per 22 pounds of body weight, or a placebo. After two weeks, the men fasted for 12 hours after the last dose of arginine, drinking only water, and then performed a cycling test.

For the test, the men pedaled for three minutes at 60 to 70 revolutions per minute (rpm) with no resistance, then maintained 60 rpm against a 90-watt resistance load for the next three minutes, then tried to maintain 60 rpm as the resistance load increased by 30 watts every three minutes. The arginine group cycled 5.8 percent longer than placebo before exhaustion, an improvement that may seem small but is significant, doctors said.

Reference: Biol Sport. 2014 Aug;31(3):187-91.
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