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backbonemen: muscle guy demonstrates stomach vacuum
khattriya: you don’t need abs to be a cool dad (i dunno about you but kids find stomach vacuum fascinating)
czech-boys: Czech bodybuilder Lukáš doing stomach vacuum exercise
hugemusclemen: Regrann from @musclecontrolfan - Was looking for some new ab control content and came across this awesome guy. Here’s @hungarianexperiment and his amazing stomach vacuum skills. Many more like this on his page. You guys gotta check
