Costa Pablo B, Herda Trent J, Herda Ashley A, Cramer Joel T
Exercise Physiology Laboratory, Department of Kinesiology, California State University, Fullerton, CA 92831, USA.
Department of Health, Sport and Exercise Sciences, University of Kansas, Lawrence, KS 66045, USA.
Sports (Basel). 2016 Jan 27;4(1):7. doi: 10.3390/sports4010007.
Short-term resistance training has been shown to increase isokinetic muscle strength and performance after only two to nine days of training. The purpose of this study was to examine the effects of three days of unilateral dynamic constant external resistance (DCER) training and detraining on the strength of the trained and untrained legs. Nineteen men were randomly assigned to a DCER training group or a non-training control group. Subjects visited the laboratory eight times, the first visit was a familiarization session, the second visit was a pre-training assessment, the subsequent three visits were for training sessions (if assigned to the training group), and the last three visits were post-training assessments 1, 2, and 3 (, 48 h, 1 week, and 2 weeks after the final training session). Strength increased in both trained and untrained limbs from pre- to post-training assessment 1 for the training group and remained elevated at post-training assessments 2 and 3 ( ≤ 0.05). No changes were observed in the control ( > 0.05). Possible strength gains from short-term resistance training have important implications in clinical rehabilitation settings, sports injury prevention, as well as other allied health fields such as physical therapy, occupational therapy, and athletic training.
短期阻力训练已被证明，仅在训练两到九天后就能增加等速肌肉力量和表现。本研究的目的是检验三天的单侧动态恒定外力阻力（DCER）训练及停训对训练侧和未训练侧腿部力量的影响。19名男性被随机分配到DCER训练组或非训练对照组。受试者共到访实验室八次，第一次到访为熟悉环节，第二次到访为训练前评估，随后三次到访（若被分配到训练组）为训练环节，最后三次到访为训练后评估1、2和3（分别在最后一次训练环节后的24小时、48小时、1周和2周）。训练组从训练前评估到训练后评估1，训练侧和未训练侧肢体的力量均增加，且在训练后评估2和3时保持升高（P≤0.05）。对照组未观察到变化（P>0.05）。短期阻力训练可能带来的力量增长在临床康复、运动损伤预防以及其他相关健康领域（如物理治疗、职业治疗和运动训练）具有重要意义。
