https://www.selleckchem.com/pr....oducts/sp-600125.htm
30 minutes (p  0.05). In the control group, EMG of CES at 41.30 minute was significantly higher than that of at 0 min (p  0.05). There was no significant difference in EMG of UT between the two groups. Conclusion smartphone user in the interventional group reported less pain when compared to control group after Smartphone use for 41.30 minutes. Therefore, the user aged 18-25 years should have a rest combined with correct posture, eye rest and self-stretching to prevent neck pain during prolonged smartphone use. Conclusion smar