Department of Physical Therapy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
Department of Orthopedics, National Cheng Kung University Hospital, Tainan 701, Taiwan.
Int J Environ Res Public Health. 2021 May 19;18(10):5430. doi: 10.3390/ijerph18105430.
Prolonged sitting combined with an awkward posture might contribute to the increased risks of developing spinal pain. Maintaining an upright sitting posture is thus often suggested, especially nowadays when people spend longer periods in the sitting posture for occupational or leisure activities. Many types of assistive devices are commercially available to help computer users maintain an upright sitting posture. As the technology advances, wearable sensors that use microelectromechanical technology are designed to provide real-time biofeedback and promote adjusting posture actively. However, whether such wearable biofeedback sensors could assist adjusting sitting posture in computer users during prolonged typing remains unknown. This study aimed to investigate the effects of a wearable biofeedback sensor on maintaining an upright sitting posture. Twenty-one healthy young adults were recruited and performed a 1-h computer typing task twice, with and without using the active biofeedback device. The sagittal spinal posture during computer typing was measured using a three-dimensional motion analysis system. Using the wearable biofeedback sensor significantly decreased the neck flexion ( < 0.001), thoracic kyphotic ( = 0.033), and pelvic plane ( = 0.021) angles compared with not using the sensor. Computer users and sedentary workers may benefit from using wearable biofeedback sensors to actively maintain an upright sitting posture during prolonged deskwork.
长时间坐姿加上不良姿势可能会增加患脊椎疼痛的风险。因此，人们经常建议保持直立坐姿，尤其是在当今社会，人们长时间以坐姿进行职业或休闲活动。许多类型的辅助设备可在市场上买到，以帮助计算机用户保持直立坐姿。随着技术的进步，使用微机电技术的可穿戴传感器旨在提供实时生物反馈并积极促进调整姿势。然而，这种可穿戴生物反馈传感器是否可以帮助计算机用户在长时间打字时保持正确的坐姿尚不清楚。本研究旨在探讨可穿戴生物反馈传感器对保持直立坐姿的影响。招募了 21 名健康的年轻成年人，让他们两次进行 1 小时的计算机打字任务，一次使用主动生物反馈设备，一次不使用。使用三维运动分析系统测量计算机打字过程中的矢状脊柱姿势。与不使用传感器相比，使用可穿戴生物反馈传感器可显著降低颈部前屈（<0.001）、胸椎后凸（=0.033）和骨盆平面（=0.021）的角度。使用可穿戴生物反馈传感器，长时间伏案工作的计算机用户和久坐工作者可能会受益于积极保持直立坐姿。
