young adult man doing an abs and obliques workout outdoors.concept of overcoming, effort, reward, sacrifice and success

abdominal abs adult balance body build calisthenics care caucasian city core cross doing effort elastic energy fitness grass gym healthy holding lawn leg leisure man muscle muscular obliques outdoor outdoorsconcept overcoming people physical plyometric reverse reward roof rotation sacrifice shoulders sport sportswear stability straps success suspension train trainer training trx twist urban warm wear wellbeing working workout young