ChiRunning: Pain-free running instruction from renown running instructor Danny Dreyer. Chirunning is an injury-free running form which combines modern physics with the ancient wisdom of T'ai Chi. Chirunning trains you for 10k running, marathon running, 50k, trail running, ultra-distance, and more. Create a running form that is easily learned and makes running more effortless and e chichirunningdannydreyerrunrunning with system:unfiledby 2 users