Fatouros I G, Laparidis K, Kambas A, Chatzinikolaou A, Techlikidou E, Katrabasas I, Douroudos I, Leontsini D, Berberidou F, Draganidis D, Christoforidis C, Tsoukas D, Kelis S, Taxildaris K
Department of Physical Education and Sport Sciences, Democritus University of Thrace, Komotini, Greece.
J Sports Med Phys Fitness. 2011 Mar;51(1):33-41.
This study evaluated the validity, reliability, and sensitivity of the single-trial line drill test (SLDT) for anaerobic power assessment.
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).
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.
Results suggest that the SLDT appears to be a valid, reliable, and sensitive field test of anaerobic capacity for basketball players.
本研究评估了单次线钻测试（SLDT）用于无氧功率评估的有效性、可靠性和敏感性。
24名志愿者被分为对照组（C组，n = 12）或实验组（BP组，n = 12，篮球运动员）。通过与温盖特测试（WAnT：平均功率[MP]和峰值功率[PP]）以及30秒垂直跳测试（VJT：平均高度和MP）对比，评估SLDT（完成时间）的同时效度。在静息状态和测试后立即测量血乳酸浓度。确定SLDT的可靠性[重测组内相关系数（ICC）、变异系数（CV）、布兰德-奥特曼图]和敏感性（单因素方差分析）。
肯德尔tau相关性分析显示，SLDT时间与WAnT的PP（= 0.78）、MP（= 0.56）以及VJT的MP（= 0.85）和高度（= 0.90）之间存在相关性（P < 0.05）。SLDT乳酸浓度与WAnT（= 0.40）和VJT（= 0.66）各自的乳酸值呈中度相关（P < 0.05）。BP组的SLDT时间与VJT的MP（= 0.80）和高度（= 0.90）相关（P < 0.05），但与WAnT的表现变量无关。BP组的SLDT乳酸反应与WAnT的PP（= 0.54）、VJT的MP（= 0.68）、高度（= 0.65）和乳酸浓度（= 0.65）呈中度相关（P < 0.05）。时间和乳酸的ICC分别为0.92和0.93（P < 0.05），尽管布兰德-奥特曼图和CV表明SLDT时间比乳酸反应具有更高的可靠性。在所有测试中，BP组的表现水平均高于C组（P < 0.05），表明SLDT具有足够的敏感性。
结果表明，SLDT似乎是一种用于篮球运动员无氧能力的有效、可靠且敏感的现场测试。
