A lap official monitored runners, giving them feedback for current lap they are in.
Participants were reinforced to run at a rating of perceived exertion (RPE) level of 8-10 as they cross every lap. Protocols and recorders were consistent from pre-test to post-test. Running time of participants were recorded in a piece of paper and immediately encoded in an Excel file. Run trials (both pre- and post-test)
were done 48 hours after the 20 MST tests.