Prolonged slumped sitting causes neck pain and increased axioscapular muscle activity during a computer task in healthy participants – A randomized crossover study

Christensen, Steffan Wittrup; Palsson, Thorvaldur Skuli; Krebs, Hans Jørgen; Graven‐Nielsen, Thomas; Hirata, Rogério Pessoto

doi:10.1016/j.apergo.2023.104020

Cited by 8 publications

(2 citation statements)

References 59 publications

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“…The difficulty places greater demands on the ergonomic design of hanging cabinets to reduce the burden of use and improve users’ quality of life ( Bazazan et al, 2019 ). There are fewer studies on using hanging cabinets by older adults, focusing more on multi-joint movements for sit-to-stand (STS) during chair use and sedentary studies ( Bonnet and Barela, 2021 ; Christensen et al, 2023 ). STS is an essential daily task for determining whether people can live independently, so it is used as a behaviour of use to study muscle activity and fatigue ( Roldan-Jimenez et al, 2015 ) or in combination with furniture to simultaneously qualitatively and quantitatively study the behaviour of use with the design parameters ( Goncalves and Arezes, 2012 ; De Carvalho and Callaghan, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Effect of different postures and loads on joint motion and muscle activity in older adults during overhead retrieval

Zhou,

Xu,

Huang

et al. 2024

Front. Physiol.

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Introduction: Pain is a common health problem among older adults worldwide. Older adults tend to suffer from arm, lumbar, and back pain when using hanging cabinets.Methods: This study used surface electromyography to record muscle activity and a motion capture system to record joint motion to research effects of different loads and retrieval postures on muscle activity and joint range of motion when older adults retrieve objects from a high place, to provide optimised feedback for the design of hanging cabinet furniture.Results: We found that: 1) The activity of BB (Biceps brachii) on the side of the body interacting with the cabinet door was greater than that of UT (Upper trapezius) and BR (Brachial radius) when retrieving objects from a high place, the activity of UT on the side of the body interacting with a heavy object was greater than that of BB and BR. 2) The activity of UT decreases when the shoulder joint angle is greater than 90°, but the activity of BB increases as the angle increases. In contrast, increasing the object’s mass causes the maximum load on the shoulder joint. 3) Among the different postures for overhead retrieval, alternating between the right and left hand is preferable for the overhead retrieval task. 4) Age had the most significant effect on overhead retrieval, followed by height (of person), and load changes were significantly different only at the experiment’s left elbow joint and the L.BR. 5) Older adults took longer and exerted more effort to complete the task than younger adults, and static exercise in older adults may be more demanding on muscle activity in old age than powered exercise.Conclusion: These results help to optimise the design of hanging cabinet furniture. Regarding the height of hanging cabinets, 180 cm or less is required for regular retrieval movements if the human height is less than 150 cm. Concerning the depth of the hanging cabinets, different heights chose different comfort distances, which translated into the depth of the hanging cabinets; the greater the height, the greater the depth of the hanging cabinets to use.

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Section: Introductionmentioning

confidence: 99%

Effect of different postures and loads on joint motion and muscle activity in older adults during overhead retrieval

Zhou,

Xu,

Huang

et al. 2024

Front. Physiol.

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“…Various factors, ranging from ergonomic factors in the workplace to daily lifestyle and recreational activities, contribute to the onset and persistence of neck pain. For instances, prolonged static postures (Christensen et al, 2023), repetitive neck motions (Guidotti, 1992), heavy lifting or working in awkward neck postures (Ariens et al, 2000), sedentary lifestyle and poor sleep quality (Peterson and Pihlström, 2021), and chronic stress and certain mental health conditions (Kim et al, 2013) have been associated with work-related neck MSDs. In addition to these causes, the usage of helmets and other head mounted devices in medical surgery (Nimbarte et al, 2013), military (Hanks et al, 2018), firefighting (Park et al, 2014; Wang et al, 2021), sports (Kent et al, 2020), and vehicle safety applications (Diyana et al, 2019) were found to increase the likelihood of neck MSDs.…”

Section: Introductionmentioning

confidence: 99%

Firefighter Helmets and Cervical Intervertebral Kinematics: An OpenSim-Based Biomechanical Study

Paulon,

Subramanian,

Chowdhury

2023

Preprint

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Wearing head-mounted devices for prolonged time in occupational settings is one of the leading causes of neck pain. In the case of firefighters, the helmets are designed to provide protection against both fire and impact, making it heavier, thereby increasing the risk of neck pain and musculoskeletal injuries. In this study, we evaluated user adaptability and chances of injury with two different firefighter helmet designs, US-style helmet with a comparatively higher center of mass (COM), and European-style helmet with higher mass, based on cervical intervertebral kinematics. We collected motion data of 18 male and 18 female firefighters while performing static and dynamic flexion-extension and lateral bending with and without the helmets and measured the helmets’ inertial properties. Musculoskeletal simulations were performed by applying the motion data and helmet inertial properties to a modified OpenSim full-body model to calculate cervical intervertebral kinematics. It was found that the US-style helmet, although lighter in weight, significantly increased the maximum neck and intervertebral angles during static flexion, and lateral bending and decreased static and dynamic maximum extension angles. In addition, both helmets affected cervical lordosis, which could potentially increase the risks of musculoskeletal disorders during long-term usage or firefighting operations. This study revealed that the higher lever arm of the helmet COM and moment of inertia about the axis of rotation, especially in the case of US-style helmets, is the reason for variations in neck kinematics. A low-profile helmet design (lower COM) would improve the safety and musculoskeletal health of the firefighters.

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Determinants of neck symptoms among university professors during Covid 19 pandemics

de Paula,

Teles,

Cotrim

2024

International Journal of Industrial Ergonomics

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Prolonged slumped sitting causes neck pain and increased axioscapular muscle activity during a computer task in healthy participants – A randomized crossover study

Cited by 8 publications

References 59 publications

Effect of different postures and loads on joint motion and muscle activity in older adults during overhead retrieval

Effect of different postures and loads on joint motion and muscle activity in older adults during overhead retrieval

Firefighter Helmets and Cervical Intervertebral Kinematics: An OpenSim-Based Biomechanical Study

Determinants of neck symptoms among university professors during Covid 19 pandemics

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