| Summary: | 碩士 === 國立臺灣師範大學 === 運動科學研究所 === 99 === In recent years, researchers have tried the method of load carrying on the younger people to simulate the elderly gait. However, the stimulation results have yet to be compared with the real elderly gait, and this experimental design is also debatable. Purpose: This study is conducted for the following purposes: First, analyzing the muscle strength of lower limbs for people at different ages. Second, develop the simulation method by different loads for the degradation of muscle strength, and thus understand the mobility impairment in elderly individuals. Methods: The subjects are 36 healthy women who are evenly divided into three groups based on their ages. They are young (21.42 ± 1.62 years), middle-aged (52.42 ± 2.39 years), and elder (71.08 ± 3.37 years). Subjects are examined through the followin: (a) the muscle strength of lower limbs; (b) normal gait analysis; (c) simulation gait analysis. Results: Based on the numerical value of the lower limbs muscle strength for the young subjects, the degradation rates of the muscle strength of the middle-aged and the elderly are 22.80% and 32.31% respectively. Most of the parameters in normal walk, sit-to-stand walk, and step test in simulation matched up with those in real conditions, concerning aging phenomenon in this experiment. Conclusion: The load carrying on the young people can simulate the normal walk of the elder, but can not fully simulate the sit-to-stand walk and step test of the elder. Besides, the result shows the decrease in pelvic and leg muscle strength become obvious in the middle-aged group which need to be carefully reviewed for the aging problem in the future.
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