subject: Amazing Underwater Turbines Training Bike [print this page] With the growing popularity of water cycling, diving school in London held a special open challenge to race to see who can consume at least within the time prescribed oxygen to complete the water for the next mile, about 1.6 km of riding. Participants need to complete a medical questionnaire in advance, to confirm the body in the state permission, the contestants before they are launched. In the race, each participant has an experienced referee to accompany the diving coach and is about to prevent accidents from happening. If the participant within 10 minutes to complete the race, coach and referee, participants of oxygen through the bottle of oxygen consumption to determine the outcome. Therefore, the speed in the race alone is not enough, participants have also mastered the techniques of underwater breathing Caixing.