体育科学
體育科學
체육과학
China Sport Science
2012年
1期
48~53
,共null页
LivePod LP2 人体运动 能量消耗 信度 效度
LivePod LP2 人體運動 能量消耗 信度 效度
LivePod LP2 인체운동 능량소모 신도 효도
Live Pod LP2; energy expenditure; reliability; validity
加速度传感器以其轻便、客观、精确等特点,在人体体力活动测量与评价中被广泛使用。LivePod LP2是一款国产新型加速度传感器,它基于3轴加速度MEMS传感器技术,采用人体动作智能模糊识别模型和个性化能耗模型测量人体运动中的能量消耗。对LivePodLP2在测量人体运动能量消耗的信度和效度水平进行了验证。26名受试者在4个不同部位佩戴LivePod LP2,在3种速度下（4km/h、6km/h、8km/h）运动。通过计算ICC,发现其值处于0.978～0.997;采用相关分析、配对样本t检验以及Bland-Altman分析法等方法对仪器和MAXII测量数据分析表明：LivePod LP2佩戴于右侧臀部上方,在慢跑速度水平下效度水平最高。LivePod LP2可以用于记录体力活动能量消耗,在日常应用中,用户可以选择将LivePod LP2固定于腰部来监测运动能量消耗情况。
加速度傳感器以其輕便、客觀、精確等特點,在人體體力活動測量與評價中被廣汎使用。LivePod LP2是一款國產新型加速度傳感器,它基于3軸加速度MEMS傳感器技術,採用人體動作智能模糊識彆模型和箇性化能耗模型測量人體運動中的能量消耗。對LivePodLP2在測量人體運動能量消耗的信度和效度水平進行瞭驗證。26名受試者在4箇不同部位珮戴LivePod LP2,在3種速度下（4km/h、6km/h、8km/h）運動。通過計算ICC,髮現其值處于0.978～0.997;採用相關分析、配對樣本t檢驗以及Bland-Altman分析法等方法對儀器和MAXII測量數據分析錶明：LivePod LP2珮戴于右側臀部上方,在慢跑速度水平下效度水平最高。LivePod LP2可以用于記錄體力活動能量消耗,在日常應用中,用戶可以選擇將LivePod LP2固定于腰部來鑑測運動能量消耗情況。
가속도전감기이기경편、객관、정학등특점,재인체체력활동측량여평개중피엄범사용。LivePod LP2시일관국산신형가속도전감기,타기우3축가속도MEMS전감기기술,채용인체동작지능모호식별모형화개성화능모모형측량인체운동중적능량소모。대LivePodLP2재측량인체운동능량소모적신도화효도수평진행료험증。26명수시자재4개불동부위패대LivePod LP2,재3충속도하（4km/h、6km/h、8km/h）운동。통과계산ICC,발현기치처우0.978～0.997;채용상관분석、배대양본t검험이급Bland-Altman분석법등방법대의기화MAXII측량수거분석표명：LivePod LP2패대우우측둔부상방,재만포속도수평하효도수평최고。LivePod LP2가이용우기록체력활동능량소모,재일상응용중,용호가이선택장LivePod LP2고정우요부래감측운동능량소모정황。
Due to accelerometers＇ characteristics such as light,objective and accurate,they are widely used in physical activity measurement and evaluation.LivePod LP2 is a domestic new accelerometer,which is based on three axis acceleration MEMS sensor technology,using intelligent fuzzy recognition Model of human body movements and Individuation Consume Energy measurement Model to identify human body energy expenditure in movements.In this paper,the reliability and validity of LivePod LP2 in measurement are verified.26 subjects wearing LivePod LP2s in four different postions motioned at three speeds（4,6,8 km/h）.Through calculation of ICC of every minute on each level,we evalue the agreement of LivePod LP2,and we can see the ICC value is in 0.978 ~ 0.997 indicating high reliability level;By using correlation analysis,matching sample t-test and Bland-Altman analysis between the instrument and MAXⅡ,we can see：at all three speeds,criterion validity of LivePod LP2 is between 0.7 and 0.8,and the validity of LivePod LP2 wearing in the loins when jogging is the highest.LivePod LP2 can be used to predict the energy expenditure in physical activity.During daily application,the user can fix LivePod LP2 to the right waist to monitor movement energy expenditure.
