Biomedical Engineering Doctoral Program, Boise State University, Boise, 83706, USA.
Department of Physical Education, Xiamen University of Technology, Xiamen, 361000, China.
Sci Rep. 2024 Nov 12;14(1):27761. doi: 10.1038/s41598-024-78684-w.
This study aimed to investigate the accuracy and reliability of accelerometer-based pedometers placed on the wrist, waist, and shoe's midsole during walking, running, and stair climbing. Twenty healthy adults were recruited. Steps were recorded by the pedometers and visually assessed from simultaneously recorded video to evaluate the accuracy of each pedometer in different locations of attachment. One week later, steps were recorded again by the pedometers only to evaluate the reliability of each pedometer in different locations of attachment. The wrist-worn pedometer presented significantly greater error scores compared to the midsole-worn pedometer during walking (p < 0.001), running (p = 0.006), and stair climbing (p = 0.003). Additionally, mean absolute precent error and Bland-Altman plots indicated that the pedometer worn in the midsole was most accurate for running and stair climbing, followed by waist-worn and wrist-worn pedometers. Furthermore, the midsole-worn and waist-worn pedometers showed strong reliability during walking and running, but only the midsole-worn pedometer presented acceptable reliability during stair climbing. The pedometer's position impacts the accuracy and reliability of step counts, especially for walking and stair climbing. Embedding the pedometer into the midsole seems an effective approach to improve the accuracy and reliability of step counts.
本研究旨在探讨在步行、跑步和爬楼梯时，戴在手腕、腰部和鞋底中部的计步器在测量步数方面的准确性和可靠性。研究招募了 20 名健康成年人。通过计步器记录步数，并同时记录视频以评估每个计步器在不同附着位置的准确性。一周后，仅通过计步器再次记录步数，以评估每个计步器在不同附着位置的可靠性。与鞋底中部佩戴的计步器相比，手腕佩戴的计步器在步行（p<0.001）、跑步（p=0.006）和爬楼梯（p=0.003）时的误差得分显著更高。此外，平均绝对百分比误差和 Bland-Altman 图表明，对于跑步和爬楼梯，鞋底中部佩戴的计步器最准确，其次是腰部佩戴和手腕佩戴的计步器。此外，鞋底中部佩戴和腰部佩戴的计步器在步行和跑步时表现出很强的可靠性，但只有鞋底中部佩戴的计步器在爬楼梯时表现出可接受的可靠性。计步器的位置会影响步数的准确性和可靠性，尤其是在步行和爬楼梯时。将计步器嵌入鞋底中部似乎是提高步数准确性和可靠性的有效方法。
