Ferreira Diogo V, Gentil Paulo, Ferreira-Junior João B, Soares Saulo R S, Brown Lee E, Bottaro Martim
College of Physical Education, University of Brasília, Brasília, DF, Brazil.
College of Physical Education and Dance, Federal University of Goias, Goiânia, GO, Brazil..
Physiol Behav. 2017 Oct 1;179:143-147. doi: 10.1016/j.physbeh.2017.06.001. Epub 2017 Jun 14.
To evaluate the time course of peak torque and total work recovery after a resistance training session involving the bench press exercise.
Repeated measures with a within subject design.
Twenty-six resistance-trained men (age: 23.7±3.7years; height: 176.0±5.7cm; mass: 79.65±7.61kg) performed one session involving eight sets of the bench press exercise performed to momentary muscle failure with 2-min rest between sets. Shoulder horizontal adductors peak torque (PT), total work (TW), delayed onset muscle soreness (DOMS) and subjective physical fitness were measured pre, immediately post, 24, 48, 72 and 96h following exercise.
The exercise protocol resulted in significant pectoralis major DOMS that lasted for 72h. Immediately after exercise, the reduction in shoulder horizontal adductors TW (25%) was greater than PT (17%). TW, as a percentage of baseline values, was also less than PT at 24, 48 and 96h after exercise. Additionally, PT returned to baseline at 96h, while TW did not.
Resistance trained men presented dissimilar PT and TW recovery following free weight bench press exercise. This indicates that recovery of maximal voluntary contraction does not reflect the capability to perform multiple contractions. Strength and conditioning professionals should be cautious when evaluating muscle recovery by peak torque, since it can lead to the repetition of a training session sooner than recommended.
评估涉及卧推练习的阻力训练课后峰值扭矩和总功恢复的时间进程。
采用受试者内设计的重复测量。
26名经过阻力训练的男性(年龄:23.7±3.7岁;身高:176.0±5.7厘米;体重:79.65±7.61千克)进行了一次训练,包括八组卧推练习,每组练习至肌肉瞬间疲劳,组间休息2分钟。在运动前、运动后即刻、运动后24、48、72和96小时测量肩部水平内收肌的峰值扭矩(PT)、总功(TW)、延迟性肌肉酸痛(DOMS)和主观体能。
该运动方案导致胸大肌出现持续72小时的明显DOMS。运动后即刻,肩部水平内收肌TW的下降幅度(25%)大于PT(17%)。在运动后24、48和96小时,TW相对于基线值的百分比也低于PT。此外,PT在96小时恢复到基线水平,而TW没有。
经过阻力训练的男性在自由重量卧推练习后,PT和TW的恢复情况不同。这表明最大自主收缩的恢复并不反映进行多次收缩的能力。力量和体能训练专业人员在通过峰值扭矩评估肌肉恢复时应谨慎,因为这可能导致训练课比建议的时间更早重复进行。