用单三轴加速度计评估人的步态速度和能量消耗

2012 Ninth International Conference on Wearable and Implantable Body Sensor Networks Pub Date : 2012-05-09 DOI:10.1109/BSN.2012.7

Anstasopoulou Panagiota, Shammas Layal, Hey Stefan

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引用次数: 15

摘要

近年来，利用加速度计来评估人们日常生活中的身体活动在医学、体育和心理科学研究中发挥了很大的作用。步行是最常见的日常生活活动，步行速度可以作为人类身体活动概况的指标。另一方面，能量消耗通常被用作评估人类活动的一个维度，并且与人的步行速度密切相关。我们提出了一种算法，该算法基于三轴加速度计在右侧臀部测量的身体加速度来预测步态速度。根据步态速度对活动进行分类并估计能量消耗。将该算法应用于自由生活轨迹数据(室内和室外)后，结果表明实际和估计的步态速度和能量消耗之间有很好的一致性。

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Assessment of Human Gait Speed and Energy Expenditure Using a Single Triaxial Accelerometer

Assessing people's everyday life physical activity by accelerometry has gained a large role in the medical, sports and psychology science research in recent years. Walking is the most common everyday life activity and walking speed can be used as an indicator for human physical activity profile. Energy expenditure is on the other hand often used as a dimension while assessing human activity and is strongly related to people's walking speed. We propose an algorithm, which predicts the gait speed based on body accelerations measured on the right side hip by a tri-axial accelerometer. Based on the gait speed the activity is classified and the energy expenditure is estimated. After applying the algorithm to free living track data (both indoor and outdoor), the results show a good agreement between actual and estimated gait speed and energy expenditure.

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2012 Ninth International Conference on Wearable and Implantable Body Sensor Networks

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