A decathlete must possess muscular strength , muscular endurance , cardiovascular endurance , flexibility , ability to learn technique .
A decathlete must be strong psychologically ( Blockburger , 2003 , 1 ) .
A decathlete must possess muscular strength , muscular endurance , cardiovascular endurance , flexibility , ability to learn technique , and must be strong psychologically ( Blockburger , 2003 , 1 ) .