A laboratory or field-based test that measures exercise performance capacitymust be both reliable and valid and sensitive to small changes in an athlete’sfitness level. Several factors need to be considered related to the preparationand execution of data collection to help ensure that accurate measurementsare recorded. These include1. the training and assessment of testers;2. sufficient numbers of testing assistants to conduct the testing efficiently;3. thoughtful preparation of data entry sheets or computer spreadsheets;4. availability of precise and calibrated equipment;5. efficient design of the testing environment;6. the structure of the testing session, including the order the tests areconducted in;