Introduction: New form of suspension training (TRX) has been introduced which has the ability to develop physical fitness factors. The aim of this study was to compare the effects of eight weeks of resistance training by traditional and TRX methods on physical fitness factors and extremities perimeter of non-athlete underweight girls. Material and methods: Thirty non-athlete underweight female students qualified with an average age of 23±1.64 years, weight of 43.53±0.28 kg, height of 162.66±6.6 cm and BMI of 16.31±0.2 kg/m2 were selected and randomly assigned into three groups of 10 subjects (traditional, TRX and control). Participants performed training of 3 sessions per week for eight weeks. Before and after the period of training, physical fitness variables including muscular strength and endurance, flexibility, thigh and arm circumferences were measured. Results: The results showed that both forms of training had a significant effect on muscular strength and endurance. There was no significant difference in flexibility and thigh and arm circumferences. Conclusion: It can be concluded, that the traditional and TRX training have created almost same improvements in physical fitness factors, so TRX training can be considered an efficient choice to do alongside traditional training or as its alternative in order to earn desired training achievements. It is noteworthy that when training goal is to enhance muscular strength and endurance especially in upper-body, TRX training appears to be accompanied by greater gains compared to traditional resistance training.

中文翻译：

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八周的TRX与传统的阻力训练对非运动型体重过轻女性身体健康因素和四肢周长的影响

简介：引入了新形式的悬挂训练（TRX），它具有发展身体健康因素的能力。这项研究的目的是比较传统和TRX方法进行的八周阻力训练对非运动型体重过轻女孩身体素质因素和四肢周长的影响。材料和方法：选择三十名非运动员体重过轻的女学生，他们的平均年龄为23±1.64岁，体重为43.53±0.28 kg，身高为162.66±6.6 cm，BMI为16.31±0.2 kg / m2，并随机分配三组，每组10个主题（传统，TRX和对照组）。参与者进行了为期八周的每周3次培训。训练前后，身体适应性变量包括肌肉力量和耐力，柔韧性，测量大腿和手臂的圆周。结果：结果表明，两种形式的训练对肌肉力量和耐力都有显着影响。柔韧性以及大腿和手臂的围度没有显着差异。结论：可以得出结论，传统训练和TRX训练在身体适应性因素上产生了几乎相同的改善，因此TRX训练可以被认为是与传统训练一起进行的有效选择，或者被视为获得期​​望的训练成就的替代选择。值得注意的是，当训练目标是增强肌肉力量和耐力时，尤其是在上半身，与传统的阻力训练相比，TRX训练似乎带来更大的收益。结果表明，两种形式的训练对肌肉力量和耐力都有显着影响。柔韧性以及大腿和手臂的围度没有显着差异。结论：可以得出结论，传统训练和TRX训练在身体适应性因素上产生了几乎相同的改善，因此TRX训练可以被认为是与传统训练一起进行的有效选择，或者被视为获得期​​望的训练成就的替代选择。值得注意的是，当训练目标是增强肌肉力量和耐力时，尤其是在上半身，与传统的阻力训练相比，TRX训练似乎带来更大的收益。结果表明，两种形式的训练对肌肉力量和耐力都有显着影响。柔韧性以及大腿和手臂的围度没有显着差异。结论：可以得出结论，传统训练和TRX训练在身体适应性因素上产生了几乎相同的改善，因此TRX训练可以被认为是与传统训练一起进行的有效选择，或者被视为获得预期训练成果的替代选择。值得注意的是，当训练目标是增强肌肉力量和耐力时，尤其是在上半身，与传统的阻力训练相比，TRX训练似乎带来更大的收益。传统训练和TRX训练在身体适应性因素上几乎取得了相同的进步，因此TRX训练可以被认为是与传统训练一起进行的有效选择，或者作为获得期望训练成果的替代选择。值得注意的是，当训练目标是增强肌肉力量和耐力时，尤其是在上半身，与传统的阻力训练相比，TRX训练似乎带来更大的收益。传统训练和TRX训练在身体适应性因素上几乎取得了相同的进步，因此TRX训练可以被认为是与传统训练一起进行的有效选择，或者作为获得期望训练成果的替代选择。值得注意的是，当训练目标是增强肌肉力量和耐力时，尤其是在上半身，与传统的阻力训练相比，TRX训练似乎带来更大的收益。