what is endurance
endurance. the ability to sustain an activity over a period of time. The ability to sustain a physical activity, perform repetitive submaximal contractions, or exert a force for a prolonged period.Types Aerobic enduranceâthe basis of all forms of enduranceâanaerobic endurance, speed endurance, strength endurance.he ability to sustain an activity over a period of time. The ability to sustain a physical activity, perform repetitive submaximal contractions, or exert a force for a prolonged period. Types Aerobic enduranceâthe basis of all forms of enduranceâanaerobic endurance, speed endurance, strength endurance.