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![PDF) Metabolic and performance responses of male runners wearing 3 types of footwear: Nike Vaporfly 4%, Saucony Endorphin racing flats, and their own shoes PDF) Metabolic and performance responses of male runners wearing 3 types of footwear: Nike Vaporfly 4%, Saucony Endorphin racing flats, and their own shoes](https://i1.rgstatic.net/publication/346474251_Metabolic_and_performance_responses_of_male_runners_wearing_3_types_of_footwear_Nike_Vaporfly_4_Saucony_Endorphin_racing_flats_and_their_own_shoes/links/5fec308e45851553a00512d0/largepreview.png)