stamina

IPA: stˈæmʌnʌ

The energy and strength for continuing to do something over a long period of time; power of sustained exertion, or resistance to hardship, illness etc.
(obsolete, uncountable, plural only) The basic elements of a thing; rudimentary structures or qualities.

Examples of "stamina" in Sentences

Running a marathon requires incredible endurance and stamina to keep pushing through the pain and exhaustion
High-intensity interval training is a great way to build up your stamina and increase your overall fitness level
The athlete demonstrated impressive stamina by completing the grueling obstacle course in record time
It's important to pace yourself during a long workout to conserve your stamina and energy for the entire session
Mental toughness plays a key role in maintaining stamina during a tough workout or competition