Use of Objective Measures to Estimate Sedentary Time in Youth.
Use of Objective Measures to Estimate Sedentary Time in Youth.
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DOI：
10.1123/jmpb.2018-0007
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发表时间：
2018-09-01
期刊：
影响因子：
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通讯作者：
LaMunion, Samuel R
中科院分区：
文献类型：
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作者：
Crouter, Scott E;Hibbing, Paul R;LaMunion, Samuel R
该研究的目的是对 ActiGraph GT3X+ (AG) 和 activPAL (AP) 进行全面评估，以评估青少年使用结构化和自由生活活动的久坐行为 (SB) 所花费的时间。 44 名参与者（平均值±SD；年龄，12.7±0.8 岁）在佩戴 AG（右臀部）和 AP（右大腿）的情况下完成了多达 8 项结构化活动和大约 2 小时的自由生活活动。使用 Cosmed K4b2 测量能量消耗（METy；活动 VO2 除以静息 VO2）。在结构化活动期间使用直接观察。使用 AP 和 AG 的倾斜计功能估计 SB 时间，并使用 AG 计数阈值（
The purpose of the study was to conduct a comprehensive evaluation of the ActiGraph GT3X+ (AG) and activPAL (AP) for assessing time spent in sedentary behaviors (SB) in youth using structured and free-living activities. Forty-four participants (mean±SD; age, 12.7±0.8 yrs) completed up to 8 structured activities and approximately 2-hrs of free-living activity while wearing an AG (right hip) and AP (right thigh). A Cosmed K4b2 was used for measured energy expenditure (METy; activity VO2 divided by resting VO2). Direct observation was used during the structured activities. SB time was estimated using the inclinometer function of the AP and AG, and count thresholds with AG (