看来主要是说脚腕太灵活可能更容易跑步时受伤。 http://www.feelforthewater.com/2013/03/ankle-flexibility-with-o
If you are already flexible don't go overboard with this, whilst extremely
flexible ankles are a useful attribute in elite pool swimming they will
leave you vulnerable to ankle and lower leg injuries, especially when
running. If you can point your foot in line with your leg that's plenty of
ankle flexibility for adult swimmers and triathletes.
