The lost art of Fartlek
Normal 0 7.8 Å 0 2 false false false MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable{mso-style-name:nh...英国华人论坛
标签：Fartlek - 英国华人论坛
Philosopher runner by Fartlek
Interval training is effective, but you should pay a price for it. Since it is usually carried out on the track, the scenery is monotonous, and you have to run over and over again. Kenneth Doherty remarked that neither the twitter of birds...英国华人论坛