2 Ergebnisse für: 1.159.063
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11092010 Film.flv - YouTube
https://www.youtube.com/watch?v=sABd_23mnFE
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Slow motion of foot landing in marathon - YouTube
https://www.youtube.com/watch?v=hsUfo_jHQ60
In the discussion about running technique and whether you have to land on your heels (as most modern running shoes are designed for) or on your balls of your...