Exercise Parameters of Performing Knee-Protected Tai Chi Aerobic Exercise

• Main Author: 劉又慈
• Other Authors: Li-Lan Fu
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/99307954093302382079

碩士 === 國立體育大學 === 運動傷害防護研究所 === 95 === Purposes: The purposes of this study were (1) to identify the intensity of Knee-Protected Tai Chi Aerobic Exercise. (2) to compared the accelerometer at knee joint between the Knee-Protected Tai Chi Aerobic Exercise and the walking exercise. (3) to apply of the community elderly. Method: There were two steps in this study. First, to request the voluntarily 15 college students (age: 19.87 years). To learning Knee-Protected Tai Chi Aerobic Exercise for two weeks until being familiar with this exercise. There are two day to experiment the Knee-Protected Tai Chi Aerobic Exercise and walking exercise separately. The first day is testing for Knee-Protected Tai Chi Aerobic Exercise, another day is for walking (walking speed is dependent on the average heart rate for 3 minutes). There were three kinds instruments include indirect calorimetry (SensorMedics, Vmas29), triaxial accelerometer (RT3, Stayhealth, Inc ) (were on hip and knee joint), and the heart rate monitor (Autozone heart rate monitor, Cardiosport) be used simultaneously to measure the exercise parameters. Second step, to request the voluntarily 8 the elderly in community (age: 50.25 years). To learning Knee-Protected Tai Chi Aerobic Exercise for two weeks until familiar with this exercise. Cause the test in community, the instruments just include triaxial accelerometer (RT3, Stayhealth, Inc) (were on knee joint), and the heart rate monitor (Autozone heart rate monitor, Cardiosport) be used simultaneously to measure the exercise parameters. All the data were be calculated the average to every minute, and be used in statistics. SPSS/PC 10.0 were used for statistic analysis. Results: During the Knee-Protected Tai Chi Aerobic Exercise, the oxygen consumption is 9.87 ± 3.68 ml/kg/min, and average heart rate is 104.30 ± 10.36 beats/min. The correlation during the Knee- Protected Tai Chi Aerobic Exercise between the energy predicted by RT3 and the indirect calorimetry data, both the locations (at hip and knee) were positive significance (r= .86, .55). During the walking exercise correlation between energy consumption predicted by RT3 and the indirect calorimetry data, both the locations (at hip/knee) were positive significance (r= .96, .96). But it is closest the indirect calorimetry with the energy predicted by RT3 during Knee-Protected Tai Chi Aerobic Exercise only the knee location (109.86 ± 41.76%), but not in walking exercise. The triaxial acceleration and the vectors were positive significance both at hip or knee location. But the vertical axial in RT3 at knee location wasn’t. About the triaxial accelerometer ratio (axial for anterior-posterior, lateral-medial, and vertical) during Knee-Protected Tai Chi Aerobic Exercise is 1:1:1. The triaxial ratio and vectors during walking is multiplier than Knee-Protected Tai Chi Aerobic Exercise. Not only knee location has larger the accelerometer by RT3 than hip is, but also during the walking is larger than Knee-Protected Tai Chi Aerobic Exercise. The heart rate between walking and Knee-Protected Tai Chi Aerobic Exercise is no significance, but the oxygen consumption is higher during walking exercise. The college students’ RT3 parameters were high than community elderly. Conclusion: The Knee-Protected Tai Chi Aerobic Exercise is moderate-low intensity exercise for college students. The triaxial acceleration and the vectors were positive significance with indirect calorimetry, except lateral-medial axial. The triaxial acceleration ratio during Knee-Protected Tai Chi Aerobic Exercise is more equally and more lowly. We can find the Knee-Protected Tai Chi Aerobic Exercise had low triaxial parameters and oxygen consumption, but the heart rate the no different with walking exercise. It maybe the elderly were moving in lower speed for increase joint stability. Therefore, the elderly exercise at RT3 parameters is lower than college students.