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The AlterG M300 Anti-Gravity Treadmillreceived the 2010 Medical Design Excellence Award, according to runnersweb.com. The treadmill features revolutionary anti-gravity technology originally developed atNASA. The world's onlyanti-gravity treadmill allows people to run and walk at a fraction of their body weight, lowering impact on joints and muscles. AlterG's Differential AirPressure technology applies a lifting force tothe body, providing a smoothrecovery from injury or improving training and performance.