The Dynamics Analysis on Hydraulic and Tradition Resistance Equipments

• Main Authors: Lee, Yung-Hui, 李芸慧
• Other Authors: Shiang, Tzyy-Yuang
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/76779165530604661521

碩士 === 國立臺灣師範大學 === 運動科學研究所 === 98 === The resistance training is very important in strength training. The most used training equipments in strength training are traditional resistance equipments (TRE). The hydraulic resistance equipments (HRE) have been imported to Taiwan recently; therefore we have more options to choose the training devices. Purpose：The purpose of this study was to investigate the differences on muscle activation when using HRE and TRE in order to provide the recommendations for training utilizations. Methods：This is a twofold study. First, we built an index by quantifying the hydraulic cylinder and to find the relative weight of the plates. Second, the forces and the electromyography (EMG) of biceps brachii, triceps brachii, rectus femoris, and biceps femoris were collected when the subjects used both two types of training equipments. Results：The concentric phase is the main training period in both equipments. We found the forces and the EMG are higher when using TRE than using HRE in the concentric phase, but the max force and the max power slope are higher in the HRE group. In eccentric phase, TRE group shows higher force and EMG than HRE. It might be that the muscle should activate to resist the weight of plates in the eccentric phase when using TRE, but not HRE. Conclusions：Our quantified index can be used on strength training when using HRE. HRE training instructions should focus on concentric phase. Furthermore, we should slow down the movement in eccentric phase when using TRE to avoid delayed onset muscle soreness. Because of the feature of HRE, dual-concentric training, it is suitable for disable or strengthless groups. Otherwise, TRE is suitable for the people who are familiar with.