Genaidy A M, Gupta T, Alshedi A
University of Cincinnati, Department of Mechanical Industrial and Nuclear Engineering, OH 45221-0072.
Am Ind Hyg Assoc J. 1990 Nov;51(11):610-4. doi: 10.1080/15298669091370202.
The primary objectives of this study were to test whether the muscular endurance, muscular strength, cardiovascular endurance, and workload perception of individuals engaged in combined manual handling tasks could be improved through a short and intensive physical training program. Three groups were formed to achieve the objectives of this study, and five subjects participated in each group. Two groups were trained using the concept of progressive resistance exercise; one group used the concept of six-repetition maximum (6 RM) while the other group followed the ten-repetition maximum (10 RM) protocol. The third group was used as a control group to monitor the effectiveness of the training groups. The training groups required subjects' attendance at 16 sessions for a period of 6 weeks. The control group performed the same tests given to the training group twice, separated by a period of 6 weeks. Endurance time, heart rate, ratings of perceived exertion, and static and dynamic strength were the response variables. Based on the results of this study, the following conclusions could be made: (1) it is possible to significantly improve muscular endurance, muscular strength, and cardiovascular endurance through the short and intensive training protocols examined in this investigation (the 10 RM training protocol, however, yielded better improvement in human physical capability than the 6 RM training protocol); and (2) for a fixed work load, endurance time can increase without changing job demand perception.
本研究的主要目的是测试通过一个短期高强度的体育训练计划，从事综合体力处理任务的个体的肌肉耐力、肌肉力量、心血管耐力和工作量感知是否能够得到改善。为实现本研究的目标组建了三组，每组有五名受试者。两组采用渐进性抗阻训练的概念进行训练；一组采用六次重复最大值（6 RM）的概念，而另一组遵循十次重复最大值（10 RM）方案。第三组用作对照组，以监测训练组的效果。训练组要求受试者在6周内参加16次训练课程。对照组在6周的间隔后，对训练组进行的相同测试重复进行了两次。耐力时间、心率、主观用力感觉评级以及静态和动态力量是反应变量。基于本研究的结果，可以得出以下结论：（1）通过本调查中所检验的短期高强度训练方案（然而，10 RM训练方案在人体体能改善方面比6 RM训练方案效果更好），显著提高肌肉耐力、肌肉力量和心血管耐力是可能的；（2）对于固定的工作量，耐力时间可以增加而不改变对工作需求的感知。
