Abstract：
Restrictions to control the COVID-19 pandemic have caused older adults to stop their usual activities, including physical exercises. The novel approach of isometric no-load resistance training (NLRT) can be an interesting alternative to conventional training to oppose the harmful effects of detraining. We described the design and preliminary evaluation of an eight-week, twice-weekly NLRT program for older adults returning to strength training programs after COVID-19 lockdown. An older woman (66 years, 61.9kg, 158.5cm) and an older man (66 years, 84.1kg, 166.5cm) who were engaged in conventional strength training programs before the first COVID-19 lockdown participated in this case study. We collected muscle thickness measures using a B-mode ultrasound imaging and maximum isometric torque using an isokinetic dynamometer. Our results revealed that NLRT seems to be a good alternative to increase muscle thickness of knee and elbow flexors and extensors muscles in older adults. However, NLRT effects were inconsistent for maximum torque.
摘要：
控制COVID-19大流行的限制导致老年人停止了他们通常的活动，包括体育锻炼。等距空载阻力训练（NLRT）的新颖方法可以替代常规训练，以对抗训练的有害影响。我们描述了八周的设计和初步评估，COVID-19封锁后，为老年人恢复力量训练计划提供每周两次的NLRT计划。一个年长的女人（66岁，61.9kg,158.5厘米）和一个年长的男人（66岁，84.1kg,166.5cm）在首次COVID-19封锁之前从事常规力量训练计划的人参加了此案例研究。我们使用B模式超声成像收集肌肉厚度测量值，并使用等速测力计收集最大等距扭矩。我们的结果表明，NLRT似乎是增加老年人膝关节和肘部屈肌和伸肌厚度的良好选择。然而,最大扭矩的NLRT效应不一致。
