“…For instance, faster running times for an agility task (Porter, Nolan, Ostrowski, & Wulf, 2010) or sprint starts (Ille, Selin, Do, & Thon, 2013) were seen when participants adopted an external focus (e.g., clawing the floor with the shoes), compared with an internal focus (i.e., moving the legs and feet down and back as quickly as possible). Also, oxygen consumption was reduced in experienced runners when they focused externally (Schücker, Hagemann, Strauss, & Völker, 2009;Schücker, Anheier, Hagemann, Strauss, & Völker, 2013). Similarly, swim times were reduced in novices (Freudenheim, Wulf, Madureira, & Corrêa, 2010) and experts (Stoate & Wulf, 2011) when they focused on pushing the water back as opposed to pulling their hands back.…”