Reliability and validity of the 3-min all-out running test

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Background/Aim: Determine critical speed (CS) and running distance above CS (D’), as estimated from the 3-min all-out running test (3MT) is reliable and predictive of CS and D’ determined from time trials. Methods: Seven males (26 ± 5 years, VO2max: 56.6 ± 4.1 ml·kg-1·min-1) completed an incremental treadmill test, three separate time trials (Tlim) of 800, 1600, and 2400m to determine CS and D’ and two 3MTs to estimate CS and D’. Results: Estimates of trial 1 (CS =3.90±0.41 m·s-1, D’=176±42 m) and trial 2 (CS=3.89 ± 0.48 m·s-1, D’ = 183±35 m) of the 3MT did not differ. Estimates of CS (ICC=0.95, CV=2.97%) and D’ (ICC=0.93, CV=5.12%) from the 3MT were reliable. The 3MT trials provided valid estimates of CS as determined using regression of the three time trials (ICCs ranged 0.88-0.93, TE ranged 0.13-0.15 m·s-1, CV ranged 3.32-4.76%). The 3 MT underestimated D’ by∼16%, a difference exceeding the test-retest variability. Conclusions: Estimates of CS were valid and reliable; however, assessment of D’ from the 3MT may not estimate anaerobic capacity accurately.




Aguiar, R. A. de, Salvador, A. F., Penteado, R., Faraco, H. C., Pettitt, R. W., & Caputo, F. (2018). Reliability and validity of the 3-min all-out running test. Revista Brasileira de Ciencias Do Esporte, 40(3), 288–294.

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