University of Toronto Orthopaedic Sports Medicine Program (UTOSM), Women's College Hospital, Toronto, ON, Canada; Department of Orthopaedics and Trauma Surgery, University Hospital Mannheim, Medical Faculty University Heidelberg, Mannheim, Germany.
Department of Orthopaedics, University Hospital RWTH Aachen, Aachen, Germany.
Gait Posture. 2021 Mar;85:298-303. doi: 10.1016/j.gaitpost.2021.02.018. Epub 2021 Feb 19.
Smartphones have become increasingly more popular and complicated tasks can be performed with these devices. However, the increasing use is associated with shoulder and neck pain, as well as with psychological addiction.
Do different smartphone tasks lead to changes in spinal posture and pelvic position? Is there a relationship between smartphone addiction and changes in posture?
A cross-sectional study including 50 participants was performed. Test subjects completed the Smartphone Addiction Scale and the SF-36 health questionnaire. Subjects spinal posture and pelvic position during different smartphone tasks were measured through a surface topography system. The different tasks were: standing in an upright position, simulating a phone call, texting with one or two hands during standing or while walking on a treadmill. Paired T-tests and ANOVA tests were performed to evaluate differences. The Kendall rank test was used to investigate the association between clinical scores and changes in spinal posture.
All smartphone tasks lead to a significant increase in thoracic kyphosis and trunk inclination during standing and while walking. A significant increased lumbar lordosis was also found. Texting with one or two hands correlated with increased surface rotation. No associations between smartphone addiction and changes of the spinal posture were reported.
This represents the first surface topography study that investigated the influence of different smartphone tasks on the spinal posture and pelvic position during standing and while walking. With the results of this study we demonstrated that smartphone use leads to significant changes of sagittal and frontal spine parameters. Further research should focus on the evaluation of possible detrimental effects of long-term smartphone use on the spinal posture and on the development of preventive measures.
智能手机越来越普及，人们可以用它完成各种复杂的任务。但与此同时，使用智能手机也与肩颈痛和心理成瘾有关。
不同的智能手机任务是否会导致脊柱姿势和骨盆位置的变化？智能手机成瘾与姿势变化之间是否存在关联？
进行了一项横断面研究，共纳入 50 名参与者。受试者完成了智能手机成瘾量表和 SF-36 健康问卷。通过表面地形系统测量受试者在不同智能手机任务下的脊柱姿势和骨盆位置。这些任务包括：站立时保持直立姿势、模拟打电话、单手或双手发短信（站立或在跑步机上行走时）。采用配对 T 检验和方差分析检验差异。采用 Kendall 秩检验研究临床评分与脊柱姿势变化之间的关系。
所有智能手机任务都会导致站立和行走时胸曲和躯干倾斜度显著增加，腰椎前凸也显著增加。单手或双手发短信与表面旋转增加有关。未报告智能手机成瘾与脊柱姿势变化之间存在关联。
这是第一项研究不同智能手机任务对站立和行走时脊柱姿势和骨盆位置影响的表面地形学研究。本研究结果表明，使用智能手机会导致矢状面和额状面脊柱参数发生显著变化。进一步的研究应集中在评估长期使用智能手机对脊柱姿势的潜在不良影响，以及开发预防措施上。
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