Test
IST
Initial Strength Test
The IST is a gateway test, not a graduation test. Men must complete at least 2 pull-ups (or a 40-second flexed-arm hang), 44 crunches in 2 minutes, and run 1.5 miles in under 13:30. Women: a 12-second flexed-arm hang, 44 crunches, and 1.5 miles in under 15:00. Failing the IST means more training before you can begin recruit training. Recruiters use it to gauge readiness.