Biomechanics Laboratory, Center of Sports, Federal University of Santa Catarina, Florianópolis, Brazil.
Sport Department, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil.
J Strength Cond Res. 2019 Sep;33(9):2523-2529. doi: 10.1519/JSC.0000000000002153.
Sant'Ana, J, Franchini, E, Murias, JM, and Diefenthaeler, F. Validity of a taekwondo-specific test to measure VO2peak and the heart rate deflection point. J Strength Cond Res 33(9): 2523-2529, 2019-This study investigated whether the progressive specific taekwondo test (PSTT) is a valid test to measure peak oxygen consumption (VO2peak) and the heart rate deflection point (HRDP) in taekwondo athletes. Eighteen male black belt athletes (25.3 ± 4.8 years; 8.2 ± 4.7 years of practice; 171.8 ± 4.7 cm; 76.1 ± 8.2 kg, and 13.1 ± 2.9% body fat) involved in regional- and national-level competitions performed the PSTT and an incremental treadmill test (IT). The following variables were analyzed: VO2peak, respiratory quotient, oxygen consumption at the HRDP (VO2HRDP), peak heart rate (HRpeak), HRDP, and peak posttest blood lactate concentration. During the PSTT, the peak kick frequency (FKpeak) and kick frequency at the HRDP (FKHRDP) were also obtained. During the IT, the peak speed and the speed at the HRDP were identified by the Dmax method (the first and last points of the curve were connected by a straight line, and the most distant point of the curve to the line was considered as the HRDP). No differences were observed between VO2 responses during the PSTT and IT (p > 0.05). VO2peak and VO2HRDP presented bias (1.3 ml·kg·min and -0.78 ml·kg·min, respectively) derived from the Bland and Altman plots, with the 95% limits of agreement indicating that the differences between the 2 measures can reach 11% for VO2peak and 17% for VO2HRDP. The PSTT is a valid tool to assess aerobic power and capacity in taekwondo athletes based on direct comparisons to a treadmill test. The test presents more specific variables for the assessment and training of taekwondo athletes, such as FKpeak and FKHRDP, which can be used to determine and control the effects of training and help coaches in prescribing training programs.
圣安娜、弗兰奇尼、穆里亚斯和迪芬塔勒尔。一种特定跆拳道测试测量峰值摄氧量和心率拐点的有效性。J 力量与体能研究 33(9):2523-2529,2019-本研究旨在探讨渐进式特定跆拳道测试(PSTT)是否可作为测量跆拳道运动员峰值耗氧量(VO2peak)和心率拐点(HRDP)的有效测试。18 名男性黑带运动员(25.3±4.8 岁;8.2±4.7 年训练年限;171.8±4.7cm;76.1±8.2kg;13.1±2.9%体脂率)参加了地区和国家级比赛，完成了 PSTT 和递增跑步机测试(IT)。分析了以下变量:VO2peak、呼吸商、HRDP 时的耗氧量(VO2HRDP)、最大心率(HRpeak)、HRDP 和最大 posttest 血乳酸浓度。在 PSTT 中，还获得了峰值踢频(FKpeak)和 HRDP 时的踢频(FKHRDP)。在 IT 中，最大速度和 HRDP 时的速度是通过 Dmax 方法确定的(曲线的第一个和最后一个点通过一条直线连接，曲线最远的点到线被认为是 HRDP)。PSTT 和 IT 期间的 VO2 反应没有差异(p>0.05)。VO2peak 和 VO2HRDP 呈现出偏差(分别为 1.3ml·kg·min 和-0.78ml·kg·min)，源自 Bland 和 Altman 图，95%的一致性界限表明，这两种测量方法之间的差异在 VO2peak 上可达 11%，在 VO2HRDP 上可达 17%。PSTT 是一种基于与跑步机测试直接比较来评估跆拳道运动员有氧能力的有效工具。该测试提供了更具体的变量来评估和训练跆拳道运动员，如 FKpeak 和 FKHRDP，可用于确定和控制训练效果，帮助教练制定训练计划。
