Effects of self-posture correction exercise in forward head posture of smartphone users.

Jaroenrungsup, Yaowaluk; Kanchanomai, Siriluck; Khruakhorn, Santhanee

The majority of smartphone users tend to tilt heads forward to focus on screens which involves a combination of muscles tension and weakening leading to muscle performance reduction. This study aimed to compare the effects of self-exercise three times-per-week for six weeks combined with received knowledge in experiment and control received knowledge only were assessed craniovertical angle-CVA, head-tilt angle-HTA and shoulder angle-SHA by kinovea program, neck strength with hand-held dynamometer, neck endurance by holding time, flexibility by pectoralis-minor and lattisimus-dorsi length and neck pain with NDI. Forty-six participants that had CVA less than 45° and pectoralis-minor length greater than 6 cm. then random assignment to each group (n=23). All outcomes analyzed by independent t-test (parametric) and Mann-Whitney u-test (non-parametric). CVA, neck flexion-extension strength and neck flexion endurance of experiment increased and left-pectoralis-minor length reduced more than control with statistically significant differences. Self-exercise improved CVA, neck flexion-extension strength, flexion endurance, and flexibility.

SHOULDER exercises; SMARTPHONES; NECK pain; POSTURE

Songklanakarin Journal of Science & Technology, 2021, Vol 43, Issue 2, p439

0125-3395

Academic Journal