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This study evaluates the reliability and convergent construct validity of the Edgren Side Step Test (ESST), T-Test, and Illinois Agility Test (IAT) in physically active male servicemembers. Results show no significant differences between the tests and good reliability. The relationship between the tests is explored, highlighting their unique contributions to assessing agility in different movement planes.
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A comparison of three agility tests with male servicemembers: Edgren Side Step Test, T-Test, and Illinois Agility Test Michele A. Raya, PhD, PT, SCS, ATC; Robert S. Gailey, PhD, PT; Ignacio A. Gaunaurd, PhD, MSPT; LTC Daniel M. Jayne, MPT, OCS; MAJ (Ret) Stuart M. Campbell, MPT; Erica Gagne, DPT; Patrick G. Manrique, DPT; Daniel G. Muller, DPT; Christen Tucker, DPT
Aim • Establish reliability and convergent construct validity of Edgren Side Step Test (ESST), T-Test, and Illinois Agility Test (IAT) in young, nondisabled, physically active male servicemembers (SMs). • Relevance • Performance-based outcomes have been used to assess agility in athletes and nonathletes. • However, reliability and validity have not been established.
Method • 97 male Active Duty U.S. Army SMs completed ESST, T-Test, and IAT twice within 24–48 h.
Results • No significant differences between ESST (p = 0.10), T-Test (p = 0.09), and IAT (p = 0.23). • Reliability: • Excellent interrater. • Moderate to good test-retest. • Relationship between tests: • Good positive between IAT and T-Test (r = 0.76, p < 0.001). • Moderate negative between ESST and both T-Test (r = –0.69, p < 0.001) and IAT (r = –0.65, p < 0.001).
Conclusion • These tests are valid measures of agility. • They uniquely assess movement in different planes, thus providing a comprehensive assessment of high-level mobility.