Complex sentence: Atlas was inspired by other fitness and health advocates who preceded him; world-renowned strongman Eugene Sandow and Bernarr MacFadden (creator of "Physical Culture") both set the stage for Atlas.
Split into simpler sentences: Atlas was inspired by other fitness and health advocates who preceded him. World-renowned strongman Eugene Sandow, and Bernarr MacFadden, creator of "Physical Culture," both set the stage for Atlas.