Effect of smartphone duration use on scapular muscles strength in normal subjects

Mohamed, Mohamed Soliman; Elkeblawy, Mohamed Maher; Amin, Doaa I.

doi:10.51145/jlsb.2020.6

Cited by 1 publication

(1 citation statement)

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“…Furthermore, the findings of this study were partially compatible with those of Mohammed et al (17) Who found that extended smart phone use for more than 4 hours in young adults causes rhomboids to shrink and trapezius strength to diminish on the dominant side due to persistent hyperactivity? Furthermore, it has been observed that extended usage of smartphones causes the non-dominant side's scapular muscles to get stronger as a result of overactivation while holding the phone (17).…”

Section: Discussionsupporting

confidence: 91%

Correlation between smartphone addiction and isometric scapular muscles strength among adults

Rizk¹,

Fayaz

Ibrahiem

2023

Egyptian Journal of Physical Therapy

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Purpose: to investigate how smartphone addiction affected the strength of scapular muscles in adults. The study was conducted as a cross-sectional observational analysis. Methods: A total of 150 individuals, ranging in age from 18 to 30 (mean ± standard deviation was 34.83± 4.07years), were included in the study. The smartphone addiction scale short version (SAS-SV) was used to assess smartphone addiction, while a hand-held dynamometer was used to assess scapular muscle strength. Results: Mann-Whitney test showed that there was significant difference between isometric scapular muscles strength at both sides except for upper trapezius (UT) at the left side. Spearman correlation showed weak negative correlation between SAS score and isometric strength of UT r =-0.17, p = 0.4, middle trapezius (MT) = -0.20, p = 0.1, lower trapezius (LT) r = -0.29, p = 0.00, serratus anterior (SA) r = -0.20, p = 0.01at the right side and isometric strength of MT r = -0.28, p = 0.00, LT r = -0.29, p = 0.00 at the left side. On the other hand, there were no significant correlation between SAS score and isometric strength of UT r = -0.14, p = 0.097and SA r = -0.13, p = 0.1at the left side. Conclusion: Smartphone addiction doesn't cause loss of scapular muscle strength in both sides, but people may use one side more than the other that may induce scapular muscle imbalance and shoulder dysfunction.

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Section: Discussionsupporting

confidence: 91%