Physical Effort Laboratory, Santa Catarina Federal University, Rector João David Ferreira Lima Campus, Sports Center, Trindade, Florianopolis, Brazil.
J Strength Cond Res. 2018 Sep;32(9):2623-2631. doi: 10.1519/JSC.0000000000002522.
Karasiak, FC and Guglielmo, LGA. Effects of exercise-induced muscle damage in well-trained cyclists' aerobic and anaerobic performances. J Strength Cond Res 32(9): 2632-2640, 2018-The purpose of this study was to analyze the effect of exercise-induced muscle damage (EIMD) in gross efficiency and in aerobic and anaerobic cycling performances. Nine well-trained cyclists (30.8 ± 6.4 years, cycling experience 8.4 ± 5.6 years) visited the laboratory 5 times. During the first visit, they performed a maximal incremental test on a cycle ergometer, to identify V[Combining Dot Above]O2max (55.2 ± 4.9 ml·kg·min) and maximum aerobic power (Pmax; 327.0 ± 28.5 W). During the second visit (control), they cycled 5 minutes at 60% of Pmax, 5 minutes at 70% of Pmax, 5-minute time trial, and Wingate test. During the third visit, the athletes performed 10 sets of 10 countermovement jumps, to generate EIMD. The athletes repeated the second visit tests (control) 30 minutes, 48 hours (fourth visit), and 96 hours (fifth visit) after the jumps. The rated perceived exertion values increased 48 hours after EIMD (3.8 vs. 3.1) at 60% of Pmax. The ventilation and respiratory exchange ratio increased at 60% of Pmax (up to 4.3 L·min and 0.04, respectively) and at 70% of Pmax (up to 5.4 L·min and 0.05, respectively), mainly after 96 hours. There was no significant difference in V[Combining Dot Above]O2, V[Combining Dot Above]CO2, and heart rate in submaximal exercises, neither in time trial. No differences were observed in the Wingate tests. In conclusion, the EIMD did not impair gross efficiency, nor aerobic and anaerobic performances in trained cyclists. However, despite the benefits of strength training to improve cyclists' performance, coaches must be cautious to the days after the strength training sessions because EIMD may change the perception of maintaining a given submaximal intensity during training or competition.
卡拉萨克，FC 和古列尔莫，LGA。运动引起的肌肉损伤对训练有素的自行车运动员有氧和无氧表现的影响。J 力量与调节研究 32(9)：2632-2640，2018-本研究旨在分析运动引起的肌肉损伤（EIMD）对总效率以及有氧和无氧自行车表现的影响。9 名训练有素的自行车运动员（30.8 ± 6.4 岁，骑行经验 8.4 ± 5.6 年） 5 次访问实验室。在第一次访问中，他们在自行车测力计上进行了最大递增测试，以确定最大摄氧量（V[Combining Dot Above]O2max，55.2 ± 4.9 ml·kg·min）和最大有氧功率（Pmax；327.0 ± 28.5 W）。在第二次访问（对照）中，他们以 60%的 Pmax 骑行 5 分钟，以 70%的 Pmax 骑行 5 分钟，进行 5 分钟计时赛和瓦格纳测试。在第三次访问中，运动员进行了 10 组 10 次反跳，以产生 EIMD。运动员在跳跃后 30 分钟、48 小时（第四次访问）和 96 小时（第五次访问）重复第二次访问测试（对照）。EIMD 后 48 小时，60%的 Pmax 时的感觉用力值增加（3.8 对 3.1）。在 60%的 Pmax 和 70%的 Pmax 时，通气量和呼吸交换率增加（分别增加到 4.3 L·min 和 0.04，0.05），主要发生在 96 小时后。在亚最大运动中，V[Combining Dot Above]O2、V[Combining Dot Above]CO2 和心率均无显著差异，计时赛也无差异。瓦格纳测试中没有观察到差异。总之，EIMD 并未损害训练有素的自行车运动员的总效率，也未损害他们的有氧和无氧表现。然而，尽管力量训练对提高自行车运动员的表现有好处，但教练必须在力量训练后几天保持警惕，因为 EIMD 可能会改变运动员在训练或比赛中保持给定亚最大强度的感觉。
