VARIATION PATTERN OF EXERCISE ENERGY EXPENDITURE IN THE DAILY LIFE OF MIDDLE-AND OLD AGED PERSONS.

为了解中老年人日常生活中运动能量消耗的变异性及变化规律，采用Life Coder对中老年人日常生活中的总能量消耗（TEE）、运动能量消耗（TEE）、步频（SF）和%TEE（TEE/TEE×100）进行了连续4周的测量。年龄在50岁以上，居住在当地城市和农村地区的受试者将生活编码器固定在西方4周。结果显示：TEE、TEE、SF、%TEE 4周（第1周、第2周、第3周、第4周）的每两个平均值之间均无显著性差异。而TEE、TEE、SF和%TEE在4周内每两周之间的相关系数均很高（r>0.80）。提示中老年人日常生活总能量消耗大致固定，一周内每周的能量消耗波动较大，周六、周日的能量消耗明显低于其他日。%能量消耗在10%左右，建议中老年人每日总能量消耗的10%用于运动。

To clarify variability and variation pattern of exercise energy expenditure in daily life of middle and old aged persons, the measurement of total energy expenditure (TEE), exercise energy expenditure (EEE) , step frequencies (SF) and % EEE (EEE/TEE×100) was carried out, using the Life Coder every day for 4 weeks. The subjects who were over 50 years old and were living in the local city and rural district fixed the Life Coder on the west for 4 weeks. The results were summarized.There were no significant differences between every two mean values for 4 weeks (first week, second week, third week and fourth week) in TEE, EEE, SF and % EEE. But there were significant and high (r>0.80) correlation coefficients between every two weeks for 4 weeks in TEE, EEE, SF and %EEE. Therefore, it is suggested that total energy expenditure in the daily life of middle and old aged persons are approximately fixed.The fluctuation of EEE in a week was observed at each week, and EEE on Saturday and Sunday were apparently lower than other days. %EEE was about 10 % on which day of week, and therefore it is suggested that 10 % of total energy expenditure in each day is consumed by exercise in middle and old aged persons.