"fartlek"@en-us . . . . "100893649"^^ . "100840144"@en-us . . "00893649-n"^^ . "0"^^ . . . . "a method of athletic training (especially for runners) in which strenuous effort and normal effort alternate in a continuous exercise"@en-us . . . . "fartlek"^^ . . "0.125"^^ .