Influence of neck flexion angle on gravitational moment and neck muscle activity when using a smartphone while standing

Tapanya, Weerasak; Puntumetakul, Rungthip; Neubert, Manida Swangnetr; Boucaut, Rose

doi:10.1080/00140139.2021.1873423

Cited by 22 publications

(14 citation statements)

References 50 publications

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“…Of the 16 articles that met the inclusion criteria, eight were identified as level 2B evidence [22][23][24][25][26][27][28][29] and eight were level 3B evidence [30][31][32][33][34][35][36][37]. The authors examined all 16 articles for risk of bias using the NIH Quality Assessment Tool for Before-After (Pre-Post Studies) with No Control Group (Table 2) [18].…”

Section: Resultsmentioning

confidence: 99%

“…In seven studies, [23,24,26,29,32,33,35] the authors utilized a self-report survey or questionnaire as the outcome measure collecting data related to pain level, location, and type, presence of numbness/ tingling, presence of bruxism (teeth grinding), and diagnosis of temporomandibular disorder. In eight studies [22,27,28,30,31,34,36,37], the authors reported using quantitative assessment measures to collect data related to posture, spinal kinematics, joint positioning and angles, and pain. In one study [25], authors examined the results using both types of outcome measures (a self-report questionnaire on perceived musculoskeletal discomfort and quantitative assessment measures of posture and upper extremity positioning).…”

Section: Resultsmentioning

confidence: 99%

“…Most of the neck problems appear to be related to increased neck flexion. Tapanya, et al found that greater neck flexion during smartphone use showed increased biomechanical burden on the cervical spine, resulting in more musculoskeletal discomfort and risk of injury to the area [28]. Short, et al found a trend that cervical neck flexion during smart phone use could contribute to deformity over time [36].…”

Section: Head and Neckmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Electronic Usage on the Musculoskeletal System in Adolescents and Young Adults: A Systematic Review

L¹,

G²,

Oscar³

et al. 2022

J Musculoskelet Disord Treat

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Background: Rapid developments in technology demand the use of various electronic devices in daily life. Adolescents and younger adults are reported to consume more technology compared to other age groups. Examining the health implications of device use may assist with population level prevention and wellness strategies and stakeholder education.Objective: To systematically examine the literature regarding the effects of electronic device usage on the musculoskeletal system in adolescents and young adults.Method: Four electronic databases (OVID Medline, PubMed, EBSCOhost, and Scopus) were searched for peer-reviewed articles published in English between 2011 and 2021. All selected articles were critically appraised and examined for risk of bias. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were used to report data.Result: Sixteen articles met the inclusion criteria. The evidence synthesis revealed an association between electronic device use and musculoskeletal impairments. Notably, excessive use and non-neutral postures during the use contributed to musculoskeletal discomfort and disorders. Neck, upper and lower back, and upper extremities were the most affected body regions. Conclusion:Prolonged use of electronic devices and maladaptive postures while using may contribute to musculoskeletal impairments in adolescents and young adults.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Head and Neckmentioning

confidence: 99%

See 1 more Smart Citation

Effects of Electronic Usage on the Musculoskeletal System in Adolescents and Young Adults: A Systematic Review

L¹,

G²,

Oscar³

et al. 2022

J Musculoskelet Disord Treat

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“…Joint angles were calculated by transforming the distal segment coordinate system to that of the proximal segment using a Cardan sequence of rotations. The neck joint angle was defined by expressing the head coordinate system with respect to the trunk coordinate system [ 26 , 27 ].…”

Section: Methodsmentioning

confidence: 99%

“…We examined the hypothesis that the pattern of the amount of CM motion variability is driven by the respective task constraint of whether it is the hands or feet in contact with the surface of support, rather than a universal fixed anatomical proximal-distal pattern of joint angle or 3D sway motion [ 24 ]. A measure of neck motion variability in the control of the two postures was also included in the analysis [ 25 , 26 , 27 ]. The role of neck motion in posture is typically not analyzed, except in manipulations of vestibular control, but it links directly to the established finding of a strong role of visual information in postural control (e.g., [ 28 , 29 , 30 ]).…”

Section: Introductionmentioning

confidence: 99%

Task Specific and General Patterns of Joint Motion Variability in Upright- and Hand-Standing Postures

Pryhoda

Newell

Wilson

et al. 2022

Entropy

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The preservation of static balance in both upright- and hand-stance is maintained by the projection of center of mass (CM) motion within the region of stability at the respective base of support. This study investigated, from a degrees of freedom (DF) perspective, whether the stability of the CM in both upright- and hand-stances was predicted by the respective dispersion and time-dependent regularity of joint (upright stance—ankle, knee, hip, shoulder, neck; hand stance—wrist, elbow, shoulder, neck) angle and position. Full body three-dimensional (3D) kinematic data were collected on 10 advanced level junior female gymnasts during 30 s floor upright- and hand-stands. For both stances the amount of the dispersion of joint angle and sway motion was higher than that of the CM and center of pressure (CP) with an inverse relation to time-dependent irregularity (SampEn). In upright-standing the variability of neck motion in the anterior–posterior direction was significantly greater than that of most joints consistent with the role of vision in the control of quiet upright posture. The findings support the proposition that there are both task specific and general properties to the global CM control strategy in the balance of upright- and hand-standing induced by the different active skeletal-muscular organization and the degeneracy revealed in the multiple distributional variability patterns of the joint angle and position in 3D.

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Quantifying the Importance of Active Muscle Repositioning a Finite Element Neck Model in Flexion Using Kinematic, Kinetic, and Tissue-Level Responses

Hadagali,

Fischer,

Callaghan

et al. 2023

Ann Biomed Eng

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Influence of neck flexion angle on gravitational moment and neck muscle activity when using a smartphone while standing

Cited by 22 publications

References 50 publications

Effects of Electronic Usage on the Musculoskeletal System in Adolescents and Young Adults: A Systematic Review

Effects of Electronic Usage on the Musculoskeletal System in Adolescents and Young Adults: A Systematic Review

Task Specific and General Patterns of Joint Motion Variability in Upright- and Hand-Standing Postures

Quantifying the Importance of Active Muscle Repositioning a Finite Element Neck Model in Flexion Using Kinematic, Kinetic, and Tissue-Level Responses

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