Weekly Physical Activity from IPAQ (Arabic) Recalls and from IDEEA Activity Meters

Objective: Determine the Test reliability and the objective validity of the International Physical Activity Questionnaire (IPAQ). Methods: IPAQ was evaluated for test-retest reliability within 6 - 8 days of its first administration. Criterion validity was tested comparing IPAQ data with those from an activity meter (Intelligent Device for Energy Expenditure and Activity, IDEEA). Results: The test-retest correlation (n = 71) for items of IPAQ ranged from r = 0.63 to r = 0.74 and was r = 0.79 for the total weekly PA in MET*min per week. Average PA (in MET*min/week) measured with the IDEEA meter, decreased from normal (15,840), to 14,278 in overweight (BMI > 25- < 30) and further to 12,803 in obese subjects (>30. BMI). The weekly energy expenditure measured by IDEEA correlated significantly (r = 0.61, r2 = 0.38) with the IPAQ data, providing an objective criterion for validity of IPAQ. The mean values of weekly PA estimated from IPAQ (in MET*min/week) differed significantly in the high (15,690) vs. the low (11,398) activity groups but not between the moderate (12,056) compared to the low PA group. The IPAQ criteria used to categorize subjects as moderately active, erred by including too many low PA subjects. IDEEA measurements in sedentary subjects overestimated their energy expenditure. Conclusions: IPAQ can be reliably used to distinguish low and high PA groups and yields relatively low estimates (−18%) of weekly PA in these groups compared to those measured with the activity meter. Stricter criteria are needed to distinguish moderate from low PA groups. Overweight and obese subjects showed significantly lower levels of PA than normal BMI subjects. IDEEA overestimates low levels of PA.

体力活动总能量消耗问卷中文版的信度和效度研究

目的：验证体力活动总能量消耗问卷中文版（Total Energy Expenditure Questionnaire—Chinese，TEEQ—C）的信度和效度。方法：分层随机抽取300名泰州市居民，间隔7天重复进行问卷调查检验问卷信度．采用7天体力活动日记作为标准检验问卷效度。205名研究对象进入信度和效度分析。信度分析采用组内相关系数分析。效度分析采用Spearman相关分析。结果：总体力活动能量消耗的组内相关系数为0．84（P〈0．05），各强度体力活动能量消耗的组内相关系数为0．54～0．94（P〈0．05）。总体力活动能量消耗与体力活动日记的相关系数为O．73（P〈0．001）。各强度体力活动能量消耗与体力活动日记的相关系数为0-35～0．62（P〈0．001）。均在可接受范围．其中1．5MET强度静坐的效度相关系数最高（0．62。P〈0．001）。结论：TEEQ—C在泰州人群中显示了可接受的效度和较好的信度．尤其在总体力活动水平和静坐方面。

我国运用加速度计运动传感器监测身体活动进展分析

为了丰富加速度运动传感器的理论体系,促进其在我国身体活动测量与评价等方面的应用。研究对我国近十年来关于加速度计运动传感器在身体活动中应用的信效度、相关能耗预测模型的建立以及加速度传感器在身体活动测量与评价应用的相关研究进行分析。发现不同产品有着不同适用条件,其信效度各有差异,所建立的能耗方程能有效的提高其在身体活动监测中的信效度,但是不同方式建立的能耗方程具有较大差异。因此在加速度运动传感器运用中应针对特定的身体活动选择合适的产品类型及能耗预测模型。

IPAQ长问卷表在全膝关节置换术后患者活动量应用的信度与效度分析研究

目的探讨国际体力活动问卷(international physical activity questionnaire,IPAQ)长问卷表检测膝关节置换术后患者群体的信度和效度。方法选取2016年1月至2017年6月榆林市第四(星元)医院骨科行膝关节置换术后随访的病例45例进行问卷调查,其中男性20例,女性25例;年龄55~69岁,平均年龄(60.22±5.42)岁。45例间隔1周后重新调查评价问卷信度,同时采用体力活动日记记录表(physical activity,PA)和IPAQ长问卷进行区分效度和内容效度分析,采用SPSS 24.0统计分析组内相关系数验证效度。结果IPAQ长问卷表信度:1周后重测信度组内相关系数(intraclass correlation coefficient,ICC)为0.814~0.979。IPAQ长问卷表效度:IPAQ长问卷表与PA日记比较分析发现步行、中度体力活动、重度体力活动、总体力活动能量消耗的相关系数(r=0.70~0.87),其中步行活动的相关系数较高(r=0.87)。结论IPAQ长问卷表检测膝关节置换术后患者群体的活动量具有一定的信度和效度。