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Effects of Elbow Flexor Muscle Resistance Training on Strength, Endurance and Perceived Exertion

机译：肘屈肌阻力训练对力量，耐力和感知运动的影响

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Purpose. To verify the effects of resistance training at the electromyographic fatigue threshold (EMGFT) based on one-repetition maximum strength (1RM), heart rate (HR), rate of perceived exertion (PE) and endurance time (EndT). Methods. Nineteen subjects (training group [TG]: n = 10; control group [CG]: n = 9), performed 1-min bicep curl exercises sets at 25%, 30%, 35% and 40% 1RM. Electromyography (biceps brachii and brachiorradialis), HR and PE were registered. Biceps brachii EMGFT was used to create a load index for an eight-week resistance training programme (three sets until exhaustion/session, two sessions/week) for the TG. The CG only attended one session in the first week and another session in the last week of the eight-week training period for EndT measurement. EndT was determined from the number of repetitions of each of the three sets performed in the first and last training sessions. After training, 1RM, EMGFT, EndT, HR and PE at the different bicep curl load intensities were again measured for both groups. Results. Increases in 1RM (5.9%, p 60%, p < 0.001) after training were found. In addition, PE was reduced at all load intensities (p < 0.05), while no changes were found for HR and EMGFT after training. Conclusions. Strength-endurance training based on the EMGFT improved muscular endurance and also, to a lesser extent, muscular strength. Moreover, the reduced levels of physical exertion after training at the same intensity suggest that endurance training exercises may improve comfort while performing strength exercises.
机译：目的。验证基于一次重复最大强度（1RM），心率（HR），感知劳累率（PE）和耐力时间（EndT）在肌电图疲劳阈值（EMGFT）下进行阻力训练的效果。方法。 19名受试者（训练组[TG]：n = 10;对照组[CG]：n = 9）进行了1分钟的二头肌卷曲练习，分别为1RM，25％，30％，35％和40％。记录肌电图（肱二头肌和肱肱二头肌），HR和PE。肱二头肌EMGFT用于为TG进行为期八周的抵抗力训练计划（三组直到疲惫/疗程，两节/周）以创建负荷指数。在为期八周的EndT测量培训周期的第一周，CG仅参加了一次会议，而在最后一周则参加了另一次会议。根据第一和最后一次训练中三组中每组的重复次数确定EndT。训练后，再次测量两组的二头肌卷曲负荷强度下的1RM，EMGFT，EndT，HR和PE。结果。发现训练后1RM增加（5.9％，p 60％，p <0.001）。此外，在所有负荷强度下，PE均降低（p <0.05），而训练后HR和EMGFT没有变化。结论。基于EMGFT的力量耐力训练可改善肌肉耐力，并在较小程度上改善肌肉力量。此外，以相同强度进行训练后，体力活动水平降低，这表明耐力训练运动可以在进行力量运动时提高舒适度。

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