Alonazi Asma, Almutairi Waleed, Bains Gurinder, Daher Noha, Alismail Abdullah
Department of Physical Therapy and Health Rehabilitation, College of Applied Medical Sciences, Majmaah University, Riyadh, Saudi Arabia.
Department of Cardiopulmonary Sciences, School of Allied Health Professions, Loma Linda University, Loma Linda, CA, USA.
Pediatr Int. 2021 Mar;63(3):323-330. doi: 10.1111/ped.14367. Epub 2021 Feb 27.
With an increase in smartphone usage, constant neck flexion can lead to improper posture, which may impact on lung function. Therefore, the purpose of this study was to examine and compare the craniovertebral angle (CVA) and lung function between addicted and non-addicted boys and girls aged between 8-13 years who use smartphones for long periods of time.
A cross-sectional study was conducted on 24 boys and 26 girls (mean age 10.5 ± 1.6 years and body mass index 18.6 ± 3.0 kg/m . Participants were assigned to two groups based on their scores on the Smartphone Addiction Scale-Short Version (SAS-SV) for Adolescents: addicted group (score > 32, n = 32) and non-addicted group (score ≤ 32, n = 18). The outcome variables were CVA, forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), peak expiratory flow (PEF), maximal voluntary ventilation (MVV), maximum inspiratory pressures (PImax), and maximum expiratory pressures (PEmax).
There was a significant difference in mean CVA between addicted and non-addicted boys (49.4 ± 6.7 vs 55.5 ± 7.6, η = 0.9, P = 0.03) and girls (47.3 ± 6.3 vs 52.9 ± 6.1, η = 0.9, P = 0.02). Mean FVC, FEV1, and FEV6 were significantly lower in addicted versus non-addicted boys (P = 0.04, P = 0.05, and P = 0.02, respectively). PImax was significantly less in addicted compared to non-addicted girls (55.2 ± 16.4 vs 65.3 ± 13.8, η = 0.7, P = 0.05).
Our findings showed that children addicted to smartphones (when using the SAS-SV as an indicator for addiction) revealed lower CVA and lung function results. Therefore, education on proper posture while holding smartphones is essential to the children's postural and lung function status.
随着智能手机使用的增加，持续的颈部屈曲会导致姿势不当，这可能会影响肺功能。因此，本研究的目的是检查和比较8至13岁长期使用智能手机的成瘾和非成瘾男孩与女孩的颅椎角（CVA）和肺功能。
对24名男孩和26名女孩（平均年龄10.5±1.6岁，体重指数18.6±3.0kg/m²）进行了一项横断面研究。根据青少年智能手机成瘾量表简版（SAS-SV）的得分将参与者分为两组：成瘾组（得分>32，n = 32）和非成瘾组（得分≤32，n = 18）。结果变量为CVA、用力肺活量（FVC）、第1秒用力呼气量（FEV1）、呼气峰值流速（PEF）、最大自主通气量（MVV）、最大吸气压力（PImax）和最大呼气压力（PEmax）。
成瘾和非成瘾男孩的平均CVA存在显著差异（49.4±6.7对55.5±7.6，η² = 0.9，P = 0.03），女孩也有显著差异（47.3±6.3对52.9±6.1，η² = 0.9，P = 0.02）。成瘾男孩的平均FVC、FEV1和FEV6显著低于非成瘾男孩（分别为P = 0.04、P = 0.05和P = 0.02）。与非成瘾女孩相比，成瘾女孩的PImax显著更低（55.2±16.4对65.3±13.8，η² = 0.7，P = 0.05）。
我们的研究结果表明，对智能手机成瘾的儿童（以SAS-SV作为成瘾指标时）显示出较低的CVA和肺功能结果。因此，对儿童进行持手机时正确姿势的教育对其姿势和肺功能状况至关重要。
