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The Journal of Sports Medicine and Physical Fitness 2011 March;51(1):33-41


lingua: Inglese

Validity and reliability of the single-trial line drill test of anaerobic power in basketball players

Fatouros I. G. 1, Laparidis K. 1, Kambas A. 1, Chatzinikolaou A. 1, Techlikidou E. 1, Katrabasas I. 2, Douroudos I. 1, Leontsini D. 1, Berberidou F. 1, Draganidis D. 1, Christoforidis C. 1, Tsoukas D. 3, Kelis S. 4, Taxildaris K. 1

1 Department of Physical Education and Sport Sciences, Democritus University of Thrace, Komotini, Greece; 2 Department of Orthopedics, Asklipieion General Hospital, Voula, Athens, Greece; 3 Department of Orthopedics, Athens Medical Center, Marousi, Athens, Greece; 4 Department of Physical Education and Sports Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece


AIM: This study evaluated the validity, reliability, and sensitivity of the single-trial line drill test (SLDT) for anaerobic power assessment.
METHODS: Twenty-four volunteers were assigned to either a control (C, N.=12) or an experimental (BP, N.=12 basketball players) group. SLDT’s (time-to-complete) concurrent validity was evaluated against the Wingate testing (WAnT: mean [MP] and peak power [PP]) and a 30-sec vertical jump testing test (VJT: mean height and MP). Blood lactate concentration was measured at rest and immediately post-test. SLDT’s reliability [test-retest intraclass correlation coefficients (ICC), coefficient of variation (CV), Bland-Altman plots] and sensitivity were determined (one-way ANOVA).
RESULTS: Kendall’s tau correlation analysis revealed correlations (P<0.05) between SLDT time and WAnT’s PP (=0.78) and MP (=0.56) and VJT’s MP (=0.85) and height (=0.90). SLDT lactate concentration was moderately (P<0.05) correlated with the respective lactate values of WAnT (=0.40) and VJT (=0.66). SLDT time in BP correlated (P<0.05) with VJT’s MP (=0.80) and height (=0.90) but not with WAnT performance variables. SLDT lactate responses in BP were moderately (P<0.05) correlated with WAnT’s PP (=0.54) and VJT MP (=0.68), height (=0.65), and lactate concentration (=0.65). ICCs for time and lactate were 0.92 and 0.93, respectively (P<0.05) although Bland-Altman plots and CV indicate that SLDT time demonstrated greater reliability than lactate responses. In all tests, BP demonstrated higher (P<0.05) performance levels compared to C indicating an adequate sensitivity for SLDT.
CONCLSION: Results suggest that the SLDT appears to be a valid, reliable, and sensitive field test of anaerobic capacity for basketball players.

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