腹筋強化はアブローラーで
種類は色々有る
Floyd Mayweather training compilation
https://www.youtube.com/watch?v=SOqbYk8phRA&feature=emb_rel_end
Golovkin vs. Wade Full Video- Gennady Golovkin Complete Media Workout Video 33:30 https://www.youtube.com/watch?v=ND2Lj1cbh4M
Thomas Hearns RARE Training In Prime https://www.youtube.com/watch?v=mAKxyx0MC7A
1:04 アブローラ−