However , tests on the same group of swimmer should always be performed in the same sized pool .
The swimming economy test : Swimming tests can be conducted in a short course ( 25 - m ) or long course ( 50 - m ) pool .
Tests on the same group of swimmer should always be performed in the same sized pool .
The swimming economy test : Swimming tests can be conducted in a short course ( 25 - m ) or long course ( 50 - m ) pool .