计步器干预对住院2型糖尿病患者运动量与久坐时间的影响研究

目的　探讨计步器干预对住院2型糖尿病患者运动量及久坐时间的影响。方法　连续入选2015年7月—2016年1月东南大学附属中大医院内分泌科住院的2型糖尿病患者，采用随机数字表法将患者分为试验组和对照组。对照组仅接受常规治疗、护理。试验组在接受常规治疗、护理的基础上给予计步器干预，干预时长为7 d；利用加速度器监测运动量（运动步数）、久坐时间及热卡消耗情况。结果　本研究最终共纳入47例2型糖尿病患者（试验组24例，对照组23例）。两组年龄、性别、身高、收缩压（SBP）、舒张压（DBP）、糖化血红蛋白（HbA1c）、三酰甘油（TG）、总胆固醇（TC）、高密度脂蛋白胆固醇（HDL-C）、低密度脂蛋白胆固醇（LDL-C）、餐后2 h C肽/空腹C肽、峰值耗氧量比较，差异无统计学意义（P>0.05）；对照组体质量、体质指数（BMI）高于试验组（P<0.05）。两组干预前、干预后的运动步数、久坐时间及热卡消耗组间比较，差异均无统计学意义（P>0.05）；组内比较：试验组干预前后运动步数比较，差异无统计学意义（P=0.23）；对照组干预后运动步数少于干预前（P=0.02）。相关性分析显示干预前运动步数与干预前久坐时间呈负相关、与干预前热卡消耗呈正相关（r=-0.42，P<0.05；r=0.56，P<0.05），校正年龄、BMI后，仅干预前运动步数与干预前热卡消耗呈正相关（r'=0.47，P<0.05）。结论　计步器干预有助于维持住院2型糖尿病患者运动量，但不能明显减少久坐时间及增加热卡消耗。

Effects of Pedometer Intervention on Exercise Amount and Sedentary Time in Patients with Type 2 Diabetes

Objective　To investigate the effects of pedometer intervention on exercise amount and sedentary time in patients with type 2 diabetes.Methods　Patients with type 2 diabetes admitted between July 2015 to January 2016 in the Department of Endocrinology of Zhongda Hospital Southeast University were randomly selected and divided into experimental and control groups with a random number table method.Patients in the control group received only routine treatment and care.Patients in the experimental group received a pedometer intervention with routine treatment and nursing care.The duration of the intervention was 7 days.An accelerometer was used to monitor the amount of exercise（in steps），sedentary time and calorie consumption.Results　A total of 47 patients with type 2 diabetes（24 in the experimental group and 23 in the control group） were included.Before the intervention，there were no significant differences between the two groups in age，sex，height，SBP，DBP，glycated hemoglobin（HbA1c），triglyceride（TG），total cholesterol（TC），high-density-lipoprotein cholesterol（HDL-C），low-density-lipoprotein cholesterol（LDL-C），postprandial 2 h/fasting C peptide，peak oxygen consumption（P>0.05）.The body mass and body mass index（BMI） were higher in the control group than the experimental group（P<0.05）.There were no significant differences in the exercise amount，sedentary time，and calorie consumption before and after the intervention in both groups（P>0.05）.Intra-group comparison showed that there was no significant differences before and after intervention in the experimental group（P=0.23），whereas in the control group，the amount of exercise decreased after intervention（P=0.02）.Correlation analysis indicated that the number of steps pre-intervention was negatively correlated with pre-intervention sedentary time and positively correlated with calorie consumption（r=-0.42，P<0.05；r=0.56，P<0.05）.After adjustment for age and BMI，the number of steps pre-intervention was positively correlated with pre-intervention calorie consumption（r'=0.47，P<0.05）.Conclusion　Pedometer intervention helps to maintain the amount of exercise in hospitalized patients with type 2 diabetes；however，it does not significantly decrease sedentary time or increase calorie consumption.