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Assistant Referee Intermittent Endurance Test (ARIET)

The Assistant Referee Intermittent Endurance Test, commonly known as the ARIET, is an intermittent yo-yo type test involving forwards and sideways running created specifically for football assistant referees. The test is based on the Yo-Yo Intermittent Endurance Test (Level 2).

purpose: The test evaluates a referee's ability to repeatedly perform job-specific intervals over a prolonged period of time.

equipment required: Flat, non-slip surface, marking cones, measuring tape, yo-yo (YYIE2) audio track mp3 (or use the Team BeepTest software), cd player, recording sheets.

pre-test: Explain the test procedures to the referee. Perform screening of health risks and obtain informed consent. Prepare forms and record basic information such as age, height, body weight, gender, test conditions. Measure and mark out the test area. Perform an appropriate warm-up. See more details of pre-test procedures.

test layout: Use cones to mark out four lines, a start line (B), 12.5m (C) and 20m (D) from the start line, and 2.5m recovery area before the start line (A) .

Assistant Referee Intermittent Endurance Test (ARIET)

procedure: The referee starts from the start line, and begins running forwards 20 m when instructed by the audio track. The referee turns and returns to the starting point when signaled by the recorded beep. There is a 5 second active recovery period between every out and back shuttle, during which the referee must walk to the 2.5m cone and return to the starting point. The next shuttle involves running sideways for 12.5m out and back, each run facing facing the same side. Each out and back shuttle alternates between 20m forwards running and 12m sideways running, with a 2.5m/5 seconds recovery period. A warning is given when the referee does not complete a successful out and back shuttle in the allocated time, the referee is removed the next time they do not complete a successful shuttle.

scoring: The referee's score is the total distance covered before they were unable to keep up with the recording. The same audio recording as for the YYIE2 is used, with the speed levels and number of shuttles at each level being the same.

target population: This test was specifically designed for football / soccer assistant referees, but may be suitable for other sportspeople/umpires who are required to do significant amounts of sideways running.

Football refereeFootball linesman

reliability: Some practice and familiarization with the test timing and the sideways running technique may be required. Test reliability would depend on how strictly the test is run, and the previous practice allowed for the referees.

advantages: Large groups can perform this test all at once for minimal costs.

disadvantages: Practice and motivation levels can influence the score attained, and the scoring of when a person is out of the test can be subjective. As the test is usually conducted outside, the environmental conditions can also affect the results. The test audio track must be purchased.



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