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Oxy Drive... http://bit.ly/2N838eO Oxy Up... http://bit.ly/2aw4hWH Disposable BCAA... http://bit.ly/2avOVS2 Even if you are not good at running, you can run 1km in 4 minutes 10 seconds and 3km in 12 minutes 30 seconds with running tips and continuous training. There were many questions about how to run 3km in 12 minutes, so I recorded it in a video. People who have run a lot in the 3 minute 30 second range know the 3 minute 30 second pace the best. There are few people who have run more in the 4 minute 10 second range than me. I will share my experience of running in the 4 minute 10 second range a lot in competitions and training. Introduction to Jeong Du-sik... http://bit.ly/2eIZ13k Sub-3.com... http://www.sub-3.com Email... [email protected]