The Effects of Arm Placement on Motor Performance duringSit-to-Stand Movement : Obesity Children

• Main Authors: Chou Chih-Hsun, 周志勳
• Other Authors: Tsai Yeh-Jung
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/95427333176282253440

碩士 === 國立臺北教育大學 === 體育學系碩士班 === 103 === Abstracts Objective: This study aims to explore the effects of arm placement on motor performance during Sit-to-Stand actions to obseity children. Methods: eight elementary school students without any leg injury history (age: 11 ± 0.505 years old, height:154.75 ± 9.48 cm, weight: 59.025 ± 6.806kgws). A Mega Speed Ms25k high-speedcameras(100Hz), along the sagittal plane of the subjects carried out two-dimensional film, combined with two AMTI force plates(1000Hz), to capture synchronization up the complete parameters of the kinematic and kinetic. The film Apas Motion analysis system to process, through the human body segment parameters (BSP) build, reference frame correction, reference body segment parameters, direct linear transformation(DLT) and quantified to obtain kinemtic parameters; force plate signal combining the original Dasy Lab 6.0 analysis software, by the filter (Filter), module calibration (Scaling) by the ground vertical component, horizontal component and the pressure center displacement values, using the method of inverse dynamics was lower extremity section of the joint torque and power of lower limb joints, in order to help statistical comparison, the original pith measurement standard(Nomalize), to body weight ratio (Body Weight; BW), said; from the experimental parameters using SPSS for Windows 18.0 software package for repeated measures ANOVA analysis of the statistical analysis(α= .05. Results: 1. The difference of arm placement did not show statistically significant difference on gravity horizontal displacement of obesity children’s sit-to-stand movement (p > .05). However, there’s a statistically significant difference on gravity vertical 4 displacement(p < .05). 2. The difference of arm placement did not show statistically significant difference on maxmium flection of hip different classes arm placement up, the trunk forward angle, hip, knee and ankle joints reached maximum flexion angle and angular velocity statistically significant difference (p＜.05). 3. Different classes of vertical force armplacement up the peak reached statistically significant difference(p＜.05). Conclusion: The differences of arm placement during Sit-to-Stand movement had significant inflence on obesity children’s get up actions. According to this study, when children put theirs hands on the edge of the chairs and then stand up, could produece maximum flection angles on hip, knee and ankle joints and maximum speed on body stretch upwards; but prodece less vertical force. This could decrease the impact of obesity children’s sit-to-stand actions, and then further improve the efficiency of the si-to-stand actions.