Evaluation of Illinois Agility Performance With Smartphone Applications: A Validity and Reliability Study
Condition: Training Group; Sensitivity
MeSH terms: Hypersensitivity
Study type: Interventional

Summary: 
      Due to the impracticality of accessing the gold standard test devices, researchers have
      developed easy-to-use and cost-effective smartphone applications that do not require expert
      knowledge, and these applications have been used to measure different motor abilities.
      Smartphone applications such as CODtimer, Stopwatch Movie watch, and Seconds Count are used
      to evaluate the ability to change direction within these biomotor features. However, the
      validity and reliability of these applications are the subjects of research.
    

Detailed description: 
      The athletic performance level is one of the main factors that determine the success of an
      athlete. However, the athletic performance level of an athlete is determined by many motor
      abilities. One of these motor abilities is agility.

      Because agility has been seen as a complex physical skill, valid and reliable tests and test
      devices are needed to determine the level of agility. Therefore, researchers have developed
      many test devices using technology and they have aimed to reach gold standards to measure
      agility ability through these devices. In this context, manual timers were first used to
      measure agility performance, then devices such as fully automatic test devices, photocell
      types, video timers, and radar systems were accepted as a test tool for the measurement of
      agility performance. Although fully automatic test devices are accepted as the gold standard
      in the measurement of velocity-based parameters, they cannot be preferred by everyone due to
      obstacles such as the need for expert knowledge and being economically costly for their use.

      Due to the impracticality of accessing the gold standard test devices, researchers have
      developed easy-to-use and cost-effective smartphone applications that do not require expert
      knowledge, and these applications have been used to measure different motor abilities. Among
      these motor features, CODTimer App is the smartphone application that is frequently preferred
      in the evaluation of agility ability and whose validity-reliability studies are conducted.

      In the previous studies on the validity and reliability of the CODTimer App, a very strong
      correlation was found between the CODTimer App and the gold standard automatic timing gates
      according to the 5+5 and 505 agility test protocols. However, many mobile applications have
      validity and reliability unexplored. It is necessary to investigate different test protocols
      and devices to spread the use of mobile applications and prove that they are valid and
      reliable measurement tools.

      This study aimed to determine the validity, reliability, and usefulness of the CODTimer,
      Second Count, and Stopwatch Moviewatch App with an iPhone 11 compared to gold standard timing
      gates for the evaluation of Illinois agility performance in college athletes.
    

Intervention name(s): CODTimer test
Intervention type(s): Device
Intervention description(s): The Illinois test times of the participants will be measured with different phone applications that measure the change of direction performance, and each individual will perform the test twice.
Other intervention name(s): Stopwatch Moviewatch App; Seconds Count; Stopwatch; Photocell
Allocation: Non-Randomized
Intervention model: Sequential Assignment
Intervention model description: This study was performed according to the predictive correlational research design, which is one of the quantitative research methods. Participants included in the study were determined according to the simple random sampling method. Athletes who studied at the faculty of sports sciences participated in this research and the research was carried out with a single group.
Masking: None (Open Label)
Primary purpose: Diagnostic
Keywords: Performance test; Smarthone app; Agility