School of Physical Education and Sports Science, National and Kapodistrian University of Athens, Athens, Greece.
J Strength Cond Res. 2021 Jun 1;35(6):1662-1670. doi: 10.1519/JSC.0000000000002967.
Kontochristopoulos, N, Bogdanis, GC, Paradisis, G, and Tsolakis, C. Effect of a supplementary periodized complex strength training and tapering period on postactivation potentiation of sport-specific explosive performance in adolescent national-level fencers. J Strength Cond Res 35(6): 1662-1670, 2021-This study examined the effects of strength training and tapering on countermovement jump (CMJ), change of direction (COD), and step-lunge (SL) after a conditioning activity in adolescent fencers. Twenty fencers (age: 15.8 ± 1.2 years) were randomly assigned to experimental (EXP, n = 10) group and control (CON, n = 10) group. EXP and CON groups performed 8 weeks of fencing training (4 times per week), while EXP group performed a supplementary strength training program twice per week, including a hypertrophy (first 2 weeks) and a complex strength training period (6 weeks). A 14-day tapering period with reduced training volume was then applied in both groups. Conditioning activity consisted of 3 × 3 seconds of maximal voluntary isometric contraction (MVIC; half-squat; knee angle = 90°), followed by either CMJ or COD or SL performance measurements in 3 different testing sessions 24 hours apart. There was no performance enhancement in all tests for both EXP and CON groups, after the conditioning MVIC before training (p > 0.05). After training, half-squat dynamic strength (1 repetition maximum [1RM]) was significantly increased only in the EXP group (from 74.8 ± 20.0 to 127.0 ± 28.9 kg, p = 0.001) and maintained after tapering. After tapering, baseline CMJ height was significantly increased only in the EXP group (from 27.2 ± 4.6 to 30.9 ± 3.8 cm, p = 0.003). Contrary to our hypothesis, the increase in 1RM and CMJ was not followed by a postactivation potentiation enhancement in all tests (p > 0.05), possibly because of the relatively low strength and jumping performance of fencers. Thus, adolescent high-level fencers do not exhibit a performance increase after MVIC, and this was not modified by the supplementary strength training protocol used.
科托克里斯托普洛斯、N、波格达尼斯、GC、帕拉迪西斯、G 和措拉基斯、C. 补充周期性复合力量训练和减量期对青少年国家级击剑运动员专项爆发力的后激活增强的影响。J 力量与调理研究 35(6)：1662-1670，2021 年-本研究检测了力量训练和减量对青少年击剑运动员在条件活动后的反跳（CMJ）、变向（COD）和跨步跳（SL）的影响。20 名击剑运动员（年龄：15.8±1.2 岁）被随机分配到实验组（EXP，n=10）和对照组（CON，n=10）。EXP 和 CON 组每周进行 4 次击剑训练，而 EXP 组每周进行两次补充力量训练计划，包括肥大（前 2 周）和复杂力量训练期（6 周）。然后，两组都进行了为期 14 天的减少训练量的减量期。条件活动由 3 次 3 秒最大自愿等长收缩（MVIC；半蹲；膝关节角度=90°）组成，然后在 24 小时内的 3 次不同测试中进行 CMJ 或 COD 或 SL 性能测量。在训练前的 MVIC 条件下，EXP 和 CON 两组在所有测试中均未出现性能提高（p>0.05）。训练后，EXP 组的半蹲动态强度（1 次重复最大值[1RM]）显著增加（从 74.8±20.0 增加到 127.0±28.9kg，p=0.001），并在减量后保持不变。在减量后，EXP 组的基线 CMJ 高度仅显著增加（从 27.2±4.6 增加到 30.9±3.8cm，p=0.003）。与我们的假设相反，1RM 和 CMJ 的增加并没有在所有测试中导致后激活增强（p>0.05），这可能是由于击剑运动员的相对较低的力量和跳跃表现。因此，青少年高水平击剑运动员在 MVIC 后不会表现出运动表现的提高，并且这种提高不会因使用补充力量训练方案而改变。
